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SERVICE
MANUAL
REVISION 0
FY8-13E8-000
JULY 1996
COPYRIGHT © 1996 CANON INC.
CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)

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Summary of Contents for Canon NP6085

  • Page 1 SERVICE MANUAL REVISION 0 FY8-13E8-000 JULY 1996 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 2 IMPORTANT THE INFORMATION CONTAINED HEREIN IS PUBLISHED BY CANON, INC., JAPAN. SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER. ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.
  • Page 3 All service persons are expected to be thoroughly familiar with the contents of this Service Manual, the Service Handbook, and Service Information bulletins and be ready to respond to the needs of the user promptly. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 4: System Configuration

    It is also equipped with a function to staple sorted copies automatically–with the help of its multiple stacking function, one set of copies may be delivered to a single bin. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 5: Table Of Contents

    I. Front Tray Lifter Motor Assembly..4-27 A. Photosensitive Drum ......4-64 J. Fixing Relay Drive Assembly..4-28 B. Potential Sensor Assembly.....4-70 K. Fixing Buffer Drive Assembly ..4-28 C. Primary Charging Assembly...4-70 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 6 C.F.F. CONTROLLER ......A-74 CONTROL PANEL TRANSIT PCB ..A-63 LIST OF SPECIAL TOOLS ....A-75 LCD TRANSIT PCB ......A-64 SOLVENTS AND OILS .......A-76 LAMP REGULATOR PCB ....A-65 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 7 GENERAL INTRODUCTION FEATURES ..........1-1 WARNINGS AND ACTIONS SPECIFICATIONS .........1-2 TO TAKE ..........1-27 III. NAMES OF PARTS .......1-9 ROUTINE WORK BY THE USER ..1-35 OPERATION ........1-13 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 9: Chapter 1 General Introduction

    Copy Data Controller-A1 : Control device capable of keeping track of copying volume and machine control/status communication. • Remote Diagnostic Device : Control device capable of machine control/status communication. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 10: Specifications

    Multifeeder [10 mm (0.39 in) deep; 100 sheets of 80 g/m paper] Transfer Corona Separation Corona (static separation) Cleaning Blade Fixing Heat roller (100V model, 930 W + 550 W; 208/220/240V model, 1600 W) COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 11 Provided (1 hr standard; may be varied between 10 min and 2 hr) Accessory Computer Form Feeder-A2, Control Card-V, Copy Data Controller- A1, Remote Diagnostic Device , Stapler Sorter-E2. *Canon-recommended paper. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 12 Copy paper Keep copy paper wrapped to protect against humidity. Toner Avoid direct rays of the sun, and keep at 40 C/80% or less. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 13 1:1.414 (±1.0%) Enlarge 1:1.224 (±1.0%) 1:1154 (±1.0%) ( ) : Stream reading mode Table 1-1 Copying Speed (copier) Specifications subject to change without notice. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 14 11" X 17" 11" X 17" ( ) : Stream reading mode Table 1-2 Copying Speed (copier only) Specifications subject to change without notice. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 15 * What is called 1P computer form refers to form paper not intended for duplication (e.g., carbon paper). What is called 2P or 3P computer form refers to form paper intended for duplication. Specifications subject to change without notice. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 16 Copying operation will resume at a press on the Copy Start key. Specifications subject to change without notice. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 17: Names Of Parts

    A. External View q Stapler Sorter-E2 t Front right door w RDF-D1 y Front tray e Multifeeder u Front left door r Paper deck Figure 1-1 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 18 Copyboard glass u Jam indicator e Power switch i Duplexing unit r Toner supply cover o Front tray t Multifeeder Figure 1-2 1-10 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 19 !1 No. 4 mirror @1 Upper front tray !2 Blank exposure @2 Lower front tray @3 Holding tray lamp/potential sensor Figure 1-3 1-11 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 20 !0 C.F.F. cover t Platen glass !1 No. 1, No. 2/3 mirror mount (copier) y Dust-proofing glass !2 C.F.F. mirror unit Figure 1-4 1-12 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 21: Operation

    ID key • Auto paper selection !0 User key (Additional Function key) • One-sided to two-sided !1 Interrupt key • Non AE 1-13 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 22 See p. 1-22. Note: Keys other than the Stop, Reset, Interrupt, and Copy Density keys are not accepted during continuous copying. Light Dark Figure 1-6 1-14 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 23 2 min after the end of copying opera- tion or after the last key operation. • The auto clear time may be changed in Additional Function mode. (See p. 1-24.) 1-15 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 24: Paper Originals

    Tractor Figure 1-7 Reference: The stack on the multifeeder must be 50 mm or less. Tractor locking lever Figure 1-10 1-16 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 25 9) Turn the green dial so that it is aligned with the leading edge of the original. Figure 1-12 Figure 1-14 1-17 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 26 C.F.F. top cover, place the original once again, and enter the correct number. 1-18 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 27 (You may select auto start at this time.) 1-19 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 28 In this mode, a width of about 7 mm is created along the sides of the copies. Copy Figure 1-21 1-20 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 29 Note: You cannot combine auto Zoom with auto paper selection. 1-21 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 30 Reset key or when you turn OFF the power switch. e The settings will be cleared when you enter new settings for the same key. 1-22 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 31 (It becomes ready when the ID number input matches any of the previously stored numbers.) 4) Press the key to return to the ID No. Input screen. Figure 1-24 1-23 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 32 ON: So that thick paper will be set on the tray. holding tray in two- OFF: So that thick paper will not be set on the tray. sided/overlay mode. 1-24 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 33 Factory default: copy ratio, 100%; paper selection, automatic; copy count, 1; copy density adjustment manual; one-sided to two-sided copies 1-25 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 34 Press the Start key to execute automatic cleaning of the pri- mary charging wire, pre-transfer changing wire, transfer char- ging wire, and separation charging wire. 1-26 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 35: Warnings And Actions To Take

    Figure 1-26 Paper jam has occurred Figure 1-25 Figure 1-27 3) Set the delivery assembly. 4) Close the front door. 1-27 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 36 7) Close the front door. Figure 1-30 5) Push in the duplexing unit to set it in the copier. 6) Close the front door. 1-28 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 37 Figure 1-34 3) Close the paper deck cover. Figure 1-32 2) Set the pick-up vertical path assembly, and close the front cover. 1-29 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 38 C.F.F. cover Dial Figure 1-38 Figure 1-36 5) Close the C.F.F. cover, and set the sub guide; then, press the Copy Start key. 1-30 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 39 Close the C.F.F. cover. 1-31 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 40 Figure 1-43. Do not put paper here. Figure 1-41 2) Hold the tray, and slide out the tray until it stops. Figure 1-43 1-32 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 41 Figure 1-44 2) Move the slide lid in the direction of the arrow to fix the toner bottle in place. Figure 1-47 Figure 1-45 1-33 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 42 Instruct the user to dispose of any empty toner bottle as nonflamable material. Caution: Do not dispose of the toner bottle into fire. It may explode. 1-34 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 43: Routine Work By The User

    Clean it by executing the wire cleaning function in user mode. 4) RDF Separation Belt Clean it by executing the feeder cleaning func- tion in user mode. 1-35 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 45: Chapter 2 Copying Processes

    CHAPTER 2 COPYING PROCESSES IMAGE FORMATION ......2-1 AUXILIARY PROCESSES.....2-9 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 47: Image Formation

    The NP6085 uses an electrophotographic system and is constructed as shown in Figure 2-101. (The NP6085 is equipped with an automatic potential control mechanism to ensure reproduction of stable images.) COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 48 In general, a photosensitive medium made of amorphous silicon provides high durability, sensi- Photoconducting tivity, and resolution. layer Substrate Figure 2-103 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 49 Pre-exposure is executed in advance of prima- ry charging to remove residual charges from the surface of the drum, thereby preventing uneven copy density. Time (t) figure 2-104 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 50 The surface potential of the charged drum is determined by the potential of the grid; therefore, the grid is grounded through a varistor to ensure a specific surface potential. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 51 Blade Toner Concentrated magnetic field Magnet Magnet Figure 2-109 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 52 In high-humidity condition, partial transfer failure may occur. In some cases, ground- ing is wired with leading it through a varis- tor. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 53 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 54 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 55 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 56 Copy paper immediately before delivery car- ries residual charges from transfer. The delivery static eliminator consisting of grounded strings is located along the exit to remove such charges. 2-10 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 57 C.F.F. (COMPUTER FORM FEEDER) ...3-159 III. IMAGE FORMATION SYSTEM ...3-50 SPECIFICATION AND PICK-UP/FEEDING SYSTEM .....3-81 ADJUSTMENT ........3-172 CONTROL PANEL......3-147 SERVICE MODE .......3-180 FANS ..........3-150 SELF DIAGNOSIS......3-251 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 59: Basic Operation

    No. 2 feeding Paper deck Duplexing unit control assembly assembly Delivery control assembly Upper front tray Lower front tray Pick-up feeding system Figure 3-101 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 60 DC controller PBC, since the drive loads are not many. Figure 3-102 is a block diagram showing the relationship between the NP6085’s major circuits. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 61 Side tray driver PCB RDF controller PCB Sensors/ RF-D1 Microprocessor switches Sorter controller PCB Sensors/ STS-E2 switches Microprocessor C.F.F. controller PCB Sensors/ C.F.F. switches Microprocessor Figure 3-102 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 62 (The light-blocking plate is at Q9.) J125 Paper reversing When Q11 has detected copy paper, '1'. assembly inlet sensor PDP3 (When the light-blocking plate is at Q11.) Figure 3-103 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 63 Upper front tray pick-up When Q24 has detected copy paper, '1'. PDP10 paper trailing edge sensor (The light-blocking plate is at Q24.) Figure 3-104 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 64 (The light-blocking plate is at Q40.) J112 Paper deck When Q44 has detected copy paper, '1'. feeding sensor (The light-blocking plate is at Q44.) Figure 3-105 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 65 When the re-pick up roller is rotating, '1'. RPKUHPD roller position sensor J121 Copyboard cover When the RDF has been closed, '1'. CBCD sensor Figure 3-106 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 66 J115 SW17 Upper front tray lifter UTLLD When SW17 has detected the lifter, '0'. lower limit detecting switch Figure 3-107 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 67 '1'. SW51 J123 Oscillation signal (DIGIT) Accessary connection detecting switch When an accessory is connected, SF1D alternates between '0' and '1'. Figure 3-108 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 68 When the humidity inside the machine HUM1 increases, the voltage increases. (analog signal) J104 24VU J661 Potential measurement Potential Sensor sensor measurement See p. 3-53. POTON Figure 3-109 3-10 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 69 J310 REMOTE AC0 ON J300 AC1 D See p. 3-153. MSW ON PW OFF Relay unit PCB DC power supply PCB Figure 3-110 3-11 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 70 LED turn ON. 24VU Pre-cleaning exposure CEXPD J123 RELAY Transfer When '1', the transfer guide plate guide PCB is grounded. Figure 3-111 3-12 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 71 When '0', SL3 turns ON. DSD1 SDSD When '1', SL4 turns ON. S size paper deflecting plate drive solenoid Figure 3-112 3-13 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 72 Fixing drive stop solenoid SL17 FXDSD When '0', SL17 turns ON. J123 24VU Scanner locking solenoid SL18 SLCKSD When '0', SL18 turns ON. Figure 3-113 3-14 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 73 When '0', CL18 turns ON. 4KFBCD J115 Upper front tray lifter motor See p. 3-96. J103 Primary charging wire See p. 3-78. cleaning motor Figure 3-114 3-15 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 74 When M15FW=0 and M15RV=1, M15RV the mirror shifts down. J124 Hopper motor See p. 3-68. J120 Duplexing unit pick-up motor See p. 3-109. Figure 3-115 3-16 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 75 When the fan is rotating, '1'. fan 2 24VU FM11 Scanner cooling FM11D When the fan is rotating, '1'. fan 3 Figure 3-116 3-17 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 76 Transmission data (IPC communication 2) MODEM-TxD Reception data (IPC communication 2) MODEM-RxD Figure 3-117 Remote Diagnostic Device 2 is SAME AS Copy Date Controller-A1. 3-18 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 77 24VU J501 Paper deck pick-up roller releasing When '0', SL7 turns ON. solenoid STPRSD J501 Paper deck lifter See p.3-86 motor Figure 3-118 3-19 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 78 Paper deck pick-up CL11 clutch 4KPCD When '0', CL11 turns ON. J104 24VU Multifeeder pick-up clutch CL12 MFPCD When '0', CL12 turns ON. Figure 3-119 3-20 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 79 Fixing motor Rotor DMD/ PMD/ Frequency DMCLK/PMCLK/ Amplification comparison signal FMCLK Q158 and wave rectification DHFG/ Master PMFG/ FMPL frequency division Figure 3-120 3-21 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 80 3-22 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 81 *4 ON only if the surface temperature of the fixing roller is 60°C or less. (The timing may be changed in service mode.) Figure 3-121 3-23 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 82 Blank exposure LED Upper pick-up clutch (CL14) Scanning lamp (LA1) Wait indicator ON in green ON in orange ON in green Figure 3-122 3-24 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 83 Start been switch is turned ON. pressed during the Wait period, copying starts at the end of LSTR. Table 3-103 3-25 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 84: Basic Sequence Of Operations During Copying

    Upper pick-up clutch (CL14) *1 The blank exposure LED is turned OFF in relation to the potential sensor location for potential measurement (V Figure 3-123 3-26 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 85 The surface of the drum is (last rotation) until the main motor stops. cleaned removing Discharges the last copy. charges) as post copying operation. Table 3-104 3-27 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 86 Pre-cleaning exposure LED Blank exposure LED Scanning lamp (LA1) Primary charging Pre-transfer charging Transfer charging Separation charging Upper pick-up clutch (CL140) Figure 3-124 3-28 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 87 OFF. •.The toner image on the drum is transferred to the copy paper. Table 3-105 3-29 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 88: Exposure System

    RDF/ADF in Use Reduce Lens Copy paper Original (large) (large) Copy Original paper (small) (small) Enlarge X direction Figure 3-203 (top view) Figure 3-201 3-30 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 89 LX-B J650 J103 Lens Y Q115 motor LY-HOLD Micro- drive processor -A10 LY-A circuit (slave) LY-A Lens Y motor LY-B LY-B Figure 3-204 3-31 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 90 Lens X home position sensor (Q2) Lens Y home position sensor (Q3) Motor CW rotation/sensor ON Motor CCW rotation Motor rotation (either direction) Figure 3-205 3-32 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 91 Cam plate Q2 Signal plate Lens Y home position sensor (Q2) Cam groove Y direction Lens Y motor (M10) DC controller PCB Figure 3-206 3-33 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 92 No. 1 mirror mount Forward Signal plate No. 2/No. 3 mirror mount Scanner C.F.F. position sensor (Q6) DC controller PCB Figure 3-207 3-34 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 93 (hole) Copyboard glass C.F.F. shutter No. 2 mirror Scanning lamp No. 1 mirror To No. 4 mirror No. 3 mirror Figure 3-208 3-35 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 94 SCDP2 • Scanner stream reading position leading edge 2 sensor (Q38) Scanner C.F.F. SCFFP • Scanner C.F.F. position position sensor (Q6) Table 3-201 3-36 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 95 *1 The lens is moved to suit the selected reproduction ratio and the selected copy size. *2 The degree of braking may be changed in service mode ( Figure 3-209 3-37 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 96 Table 3-202 about 220 mm will be used as the leading edge of the second page. Reversing the order of pages for copying 3-38 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 97 85 copies/min (A4; 83 copies of LTR). The RDF feeding speed can be adjusted in “ LA_SPEED”. service mode 3-39 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 98 In response, the copier turns ON the registration clutch so as to match the registration between the original and the copy. Figure 3-212 3-40 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 99 The original is stopped on the copyboard after reading in stream reading, and the remaining number is processed using normal scanning (moving the scanner). 3-41 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 101 !0 The scanner performs normal scanning for !1 The 1st original is discharged. reading ends. The scanner is returned to the remaining number of copies. home position. Figure 3-214 3-43 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 103 J220 Scanner motor M2ON J124 J220 M2CLK M2CLK Motor rotation speed M2MD2 control circuit M2MD1 M2MD0 J124 J220 M2FG J124 M2FS Figure 3-215 3-45 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 104 (M2BRK) Scanner home position sensor (Q5) Scanner original leading edge 1 sensor (Q4) *1 Scanner slow-down braking *2 Scanner stop braking Figure 3-216 3-46 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 105 Original size 1 detection signal (DSZ1) Original size 3 detection signal (DSZ3) Original size 2 detection signal (DSZ2) Copyboard detection signal (CBCD) DC controller PCB Inch-configuration Figure 3-217 3-47 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 106 Approx. 30˚ Original size sensor DC controller PCB DC controller PCB (The thickness of arrows represents the size of the level.) Figure 3-218 3-48 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 107 Original size detection signal Size DSZ4 DSZ3 DSZ2 DSZ1 None AB-configuration Original size detection signal Size Inch DSZ2 DSZ3 DSZ1 None LTRR 11x17 Inch-configuration Table 3-204 3-49 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 108: Image Formation System

    Use the light area potential, dark area potential, and control coefficient recorded on the sheet that comes with the drum; enter the settings only when replacing the drum. 3-50 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 109 CNTR2 Measurement by potential sensor Reference Correction Final voltage voltage voltage Scanning lamp Reference current Correction current Final current Primary charging Figure 3-301 3-51 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 110 C.F.F. in use Once for the first copy Once for the first copy Once for the first copy Table 3-302 Timing for Potential Control 3-52 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 111 LED1 Micro- Transformer processor Transformer Level shift (1/300) circuit (1/300) circuit J132 CP101-7 Level shift circuit DC controller PCB Figure 3-303 3-53 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 112 Reference: If LED 1 is ON normally, the potential sen- sor may be assumed to be operating nor- mally. 3-54 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 113 Micro- Scanning circuit processor converter lamp (master) J122 J335-5 Relay circuit J122 LASEL J335-8 J334-2 DC controller PCB Lamp regulator J334-4 Figure 3-306 3-55 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 114 DC power when it is ‘0’. This switching mechanism is limited to LRD=0 (lamp OFF) and is automatic when the C.F.F. is in use. 3-56 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 115 AE sensor 1 (S7) is used in left pick-up while AE sensor 2 (S33) is used in right pick-up (Figure 3-309). AE sensor 1 (S7) AE sensor 2 (S33) Figure 3-309 3-57 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 116 32 mm (2nd and subsequent pages; others) RDF feeding direction RDF feeding direction (b) Right Pick-Up (a) Left Pick-Up Figure 3-310 Points of Measurement on Originals 3-58 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 117 (PRCC_SEL; ) to suit the user’s needs. Setting Mode Enabled at all times ON under low humidity conditions Disabled 3-59 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 118 Copies of a newspaper will CFFAESLP be darker. 2. If the setting is decreased in service mode, Copies of a newspaper will be lighter. Input Table 3-303 3-60 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 119 The non-image width may be set to 0 mm in Paper size Non-image width service mode. A4R, B5R, B4, A3, LTR R 2.75 2.3mm Other sizes 2.55mm Table 3-304 3-61 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 120 The width may be varied between 1 and 20 F eeding direction 1~20mm Figure 3-314 3-62 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 121 D/A converter Differential High-voltage transformer circuit amplifier circuit for transformer J721 HVRMT Switching circuit DC controller PCB High-voltage transformer (HVT1) Figure 3-316 3-63 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 122 1) Set 4, and check the copy image if partial transfer failure occurs. The copy paper end is dirty. Absolute humidity (%AH) 1) Set 3, and check the copy image. Figure 3-317 3-64 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 123 Temperature ( C) nal (HVSCT). Drum surface potential (high) -300 ( A) HVSCT signal Drum surface potential (low) voltage level Figure 3-320 Figure 3-318 3-65 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 124 Overcurrent DC current detection circuit detection CP101-4 circuit DC transformer J127 HVPCT Drive Control circuit circuit DC current detection circuit Figure 3-322 3-66 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 125 Since such a fault will not be indicated on the control panel, check the mechanisms involved if separation jams start to occur frequently. 3-67 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 126: Cleaning Assembly

    Developing clutch Waste toner case SW13 Waste toner full detecting switch Drum motor Drum motor control PCB DC controller PCB Figure 3-323 3-68 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 127 (TEP) *1 Supply starts upon detection of black toner supply signal=0. *2 Supply stops upon detection of black toner supply signal=1. Figure 3-324 3-69 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 128 TEP=1 is detected for 3 sec or more, while clearing the Add Toner message on Piezoelectric oscillator the control panel. Figure 3-325 3-70 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 129 Prevents fogging of white backgrounds. (with C.F.F. in use, V + 80 [V]) SCFW or SCRV during copying 1500V Executes toner projection. component 2700Hz Table 3-305 3-71 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 130 Copy Start key ON SCFW SCRV SCFW SCRV STBY INTR LSTR Drum motor (M1) Developing clutch (CL1) +600V +80~90V +600V DC bias AC bias Figure 3-328 3-72 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 131 Microprocessor high-voltage DC J722 transformer(T2) ROED Switching circuit Drive circuit Voltage J722 detection circuit J127 DCBC D/A converter Differential amplifier circuit Figure 3-329 3-73 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 132 Waste toner feeding screw Gear A Waste toner feeding screw lock detection(SW20) Waste toner feeding pipe Waste toner case Figure 3-330 (rear view) 3-74 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 133 • Developing cylinder idle rotation enabled Power switch ON WMUP STBY INTR CNTR1 CNTR2 SCFW Drum motor (M1) Developing clutch (CL1) Figure 3-307 3-75 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 134 (half-wave AC power state) supplied) Copying Standby (full-wave AC power supplied) Auto power-off state (no AC power supplied) Table 3-308 3-76 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 135 Drum heater half-wave/ full-wave switching circuit SW48 Door switch Comparator circuit J1-2 Drum Triac heater Trigger circuit Thermistor Drum heater control PCB Figure 3-331 3-77 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 136 (PCHP) Primary charging wire cleaner home position signal J104-B7 (M6FW/M6RV) Primary charging wire cleaning motor drive signal J104-B8/B9 Primary charging wire cleaning motor(M6) Figure 3-332 3-78 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 137 Pre-transfer charging wire Pre-transfer charging wire cleaning motor (M7) Wire Wire cleaner Pre-transfer charging wire cleaner front detecting switch (SW7) Figure 3-333 (pre-transfer charging assembly) 3-79 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 138 Transfer/separation charging (SW8) wire Transfer/separation charging wire cleaner home position detecting switch(SW9) Figure 3-334 (transfer/separation charging assembly) 3-80 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 139: Pick-Up/Feeding System

    Paper reversal sensor Vertical path 1 sensor Re-pick up paper paper sensor Paper reversing sensor assembly outlet sensor Table 3-401 3-81 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 140 Sensor Name Name Multifeeder pick- Paper deck pick- up paper sensor up paper sensor Multifeeder Feeding sensor paper trailing edge sensor Table 3-402 3-82 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 141 3. OPERATIONS AND TIMING 3-83 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 142 Registration roller Pre-registration paper sensor Paper deck paper trailing sensor Paper deck feeder roller Paper deck pick-up sensor Paper deck Separation roller Figure 3-402 3-84 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 143 Registration roller clutch (CL10) Paper deck pick-up sensor (Q35) Paper deck trailing sensor (Q44) Paper deck feeding roller stop clutch (CL18) Figure 3-403 3-85 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 144 Paper deck door switch (SW12) Llifter lower limit signal (4KLLP) J501-A10 Paper deck motor ON signal Paper deck motor Paper deck Figure 3-404 3-86 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 145 At power-on, the lifter moves to the level sen- sor (Q45, Q43) or the lifter lower limit detecting switch (SW11) to find out the current position. 3-87 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 146 J502-A9 Lifter up/down control signal (DKDOWN) Paper deck Door open signal (STDO) J501-A8 SW12 door open/ close detected switch Figure 3-405 3-88 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 147 3-89 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 148 Upper holder pick-up motor Upper front tray Separation roller Pick-up/ feeding roller SL11 Lower holder pick-up roller Lower front tray Separation roller Figure 3-406 3-90 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 149 Upper front tray pick-up sensor (Q48) Upper front paper trailing edge sensor (Q24) Pre-registration sensor (Q30) Registration clutch (CL10) Pre-registration stop clutch (CL13) Figure 3-407 3-91 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 150 Lower front tray pick-up sensor (Q49) Lower front paper trailing edge sensor (Q23) Pre-registration sensor (Q30) Registration clutch (CL10) Pre-registration stop clutch (CL13) Figure 3-408 3-92 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 151 (Q22 for upper/Q20 for lower) (SWLED1 for upper/SWLED2 for lower) Tray lifter position sensor (Q21 for upper/Q19 for lower) Figure 3-409 (arrangement of sensors) 3-93 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 152 Front tray lifter position sensor Sensor arm (Q21 for upper/Q19 for lower) Pick-up roller DC controller Separation roller Hole Lifter Tray case Figure 3-410 (cross section) 3-94 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 153 Tray case Lifter motor Reel Cable Cable Cable Lifter Figure 3-411 3-95 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 154 Front tray lifter J111-B 9 signal SW17/19 lower limit detecting switch J115-B 5 Front tray door -B 7 SW14/15 open/closed detecting switch Figure 3-412 3-96 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 155 Upper/lower tray Tray lifter motor drive signal Open direction J105-A12 -A14 M3 (upper lifter motor) -A13 M14 (lower lifter motor) -A15 Coupling Figure 3-413 3-97 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 156 (SL12, SL13) Tray open Tray open/closed detecting switch (SW14, SW15) Lifter position sensor (Q21, Q19) Lifter up Lifter down yyyyyyyyyyyyyy yyyyyyyyyyyyyy yyyyyyyyyyyyyy Figure 3-414 3-98 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 157 Size detecting switch Upper tray SW22 SW23 SW24 SW25 Paper type Lower tray SW26 SW27 SW28 SW29 11" x 17" LTR-R Table 3-404 3-99 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 158 3. OPERATIONS AND TIMING Side guide plate (rear) Width detecting switch Side guide plate (front) Length detecting switch Rear guide plate Figure 3-415 3-100 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 159 ON to lower the rotating pick-up roller on the copy paper. DC controller PCB Pick-up motor control PCB SL26 Figure 3-416 3-101 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 160 (Q41) remains ON. Large size sensor Slide guide (rear) Variable resistor Sensor flag Multifeeder tray Slide guide (front) Figure 3-417 3-102 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 161 Image on drum Image on drum Copy paper Copy paper Copy paper ahead of image on drum Copy paper behind image on drum Figure 3-418 3-103 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 162 No. 1 paper deflecting plate SL10 Shutter guide No. 2 feeding assembly Holding tray Sub feeding roller No. 2 paper deflecting plate Figure 3-419 3-104 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 163 : M11 CW rotation (closing the guide plate) *1 : Varies depending on the thickness of the stack. *2 : Varies depending on the size of copy paper. Figure 3-420 3-105 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 164 (CL3) turns No. 1 paper deflecting plate Sub feeding roller No. 2 paper deflecting plate SL10 No. 2 feeding assembly Duplexing unit Figure 3-421 3-106 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 165 Delivery assembly switchback CW rotation clutch (CL2) Delivery assmebly switchback reversing clutch (CL3) No. 2 paper deflecting plate drive solenoid (SL2) Figure 3-422 3-107 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 166 (SL8) to feed a single sheet of copy paper. Registration roller Shutter guide Feeding roller Re-pick up feeding roller Re-pick up clutch Main motor Re-pick up motor Figure 3-423 3-108 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 167 DC controller PCB COM A (RPKUD) Motor driver circuit Microprocessor MODE1 (Q501) MODE2 COM B Re-pick up roller home position (RPKUHPD) detection signal Figure 3-424 3-109 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 168 (CL10) Re-pick up sensor (Q26) Re-pick up paper trailing edge sensor (Q33) Pre-registration paper sensor (Q30) Buffer assembly delivery sensor (Q60) Figure 3-425 3-110 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 169 (M11) does not operate but remains in wait until copying on the first side starts. (In wait, the width of the guide plate is 1.8 mm added paper size) 3-111 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 170 CW rotation Paper size guide plate CCW rotation Figure 3-426 Tray Top View Last copy? CW rotation Figure 3-427 Arranging Sheets of Copy Paper 3-112 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 171 Equivalent of A4, B5, LTR w Equivalent of A4R, LTRR e Equivalent of B4, LGL r Equivalent of A3, 279x432 Table 3-405 Figure 3-428 3-113 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 172 • When the copy paper and the original are A4, B5, or LTR and are fed horizontally. • When cover mode is selected. 3-114 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 173 !0 The 1st and 3nd copies are reverse duplexing unit, and the 2nd original delivered to complete copying. is copied on its back. Figure 3-430 3-115 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 174 2nd the 4th copy picked up from the duplexing unit. copy picked up from the duplexing unit. Figure 3-431 3-116 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 175 ‘1’ is set for ‘OHP_TEMP’ in service mode ), and the temperature is set 20°C lower than indicated above. 3-117 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 176 Cleaning belt Upper fixing roller Thermistor(TH1) Thermal driver switch AC power supply Fixing assembly delivery roller Lower fixing roller Figure 3-432 3-118 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 177 3. OPERATIONS AND TIMING b. Outline of the Fixing/Delivery Assembly Drive System DC controller PCB Fixing drive stop solenoid SL17 Clutch Fixing motor Figure 3-433 3-119 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 178 Face of belt Cleaning belt Back of belt Cleans the Applies silicone oil. face of the roller. Upper fixing roller Figure 3-434 3-120 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 179 PCB is pressed (in service mode); im- mediately after de- tection, the length is about 5600 mm, equivalent of about 100,000 copies. E005 Figure 3-435 3-121 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 180 (SL1) through a one- way arm. Cleaning belt drive solenoid One-way arm Thermistor Reciprocating cam Upper fixing roller 12mm Thermistor Figure 3-436 3-122 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 181 Upper fixing roller Separation claw Separation claw Reciprocating cam Fixing motor Fixing assembly delivery roller Figure 3-437 3-123 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 182 ON in green ON in orange Wait indicator Delivery detection (Q15) Cleaning belt drive solenoid (SL1) 200˚C 195˚C 190˚C 180˚C 170˚C Figure 3-438 3-124 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 183 STBY Main heater (H1) Fixing heater (M17) Energy Saver indicator 200˚C 190˚C 180˚C 170˚C *1: May be varied in user mode. Figure 3-439 3-125 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 184 Advise the user to remove such a jam by opening the delivery door. Locked SL16 Copy paper Fixing assembly (profile) Figure 3-440 3-126 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 185 155 (˚C) 160 (˚C) 160 (˚C) 165 (˚C) 150 (˚C) 155 (˚C) 165 (˚C) 170 (˚C) Stop Table 3-406 3-127 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 186 Fixing assembly paper sensor Feeding assembly paper detection signal(FPDP) Feeding assembly paper sensor Front door open signal (FD0) Front door switch (SW3) Figure 3-441 3-128 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 187 DC controller PCB Lamp regulator DC power supply PCB Error Gate Micro- array processor Power supply PWOFF (122VU for relay) Figure 3-442 3-129 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 188 Sub heater drive signal ThermistorTH1 (SHOND) Error Gate array Overheat detection Fixing heater ON detection signal(HRA) Activation detection circuit Lamp regulator Figure 3-443 3-130 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 189 (ECDRER). DC controller PCB control circuit Gate Master array drive Error ECDRER circuit detection circuit Resett- Reset To RDF Figure 3-444 3-131 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 190 Copies stacked with reversal delivery ON (C.F.F. in use) (C.F.F. in use) 1st page 1st page Continuous paper Continuous paper C.F.F. C.F.F. Figure 3-445c Figure 3-445d 3-132 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 191 3. OPERATIONS AND TIMING 3-133 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 192 (timing jam). d. Copy paper does not move past a specific sensor within a specific period of time (sta- tionary jam). 3-134 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 193 Multifeeder Delay, stationary, Paper deck fee- Delay, stationary, paper trailing timing jams ding sensor timing jams edge sensor Table 3-408 3-135 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 194 3. OPERATIONS AND TIMING 3-136 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 195 Jam check Registration paper Normal Error sensor (Q30) Pick-up motor (M16) I: Varies depending on the length of copy paper. Figure 3-454 3-137 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 196 Lower front tray pick-up sensor(Q49) Lower front tray paper Normal Error trailing edge sensor (Q23) 0.7 sec (approx.) Pick-up motor (M16) Figure 3-456 3-138 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 197 Re-pick up clutch (CL6) Jam check Re-pick up sensor (Q26) Re-pick up paper trailing Error Normal edge sensor (Q33) Pick-up motor (M16) Figure 3-457 3-139 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 198 Jam check Fixing assembly paper Normal Error sensor (Q10) Pick-up motor (M16) I: Varies depending on the length of copy paper. Figure 3-459 3-140 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 199 Delivery delay jam check Jam check Normal Error Delivery sensor (Q15) Pick-up motor (M16) I: Varies depending on the length of copy paper. Figure 3-461 3-141 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 200 Jam check Error Normal Buffer assembly paper sensor (Q15) Pick-up motor (M16) I: Varies depending on the length of copy paper. Figure 3-463 3-142 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 201 LSTR Paper reversing assembly inlet sensor (Q11) 0.12 sec (approx.) Jam check Normal Error Paper reversal sensor (Q13) Pick-up motor (M16) Figure 3-465 3-143 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 202 Jam check Error Paper reversal Normal sensor (Q13) Pick-up motor (M16) I: Varies depending on the length of copy paper. Figure 3-467 3-144 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 203 Jam check Normal Error Paper reversing assembly outlet sensor (Q14) Pick-up motor (M16) I: Varies depending on the length of copy paper. Figure 3-469 3-145 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 204 Jam check Error No. 2 feeding inlet Normal sensor (Q14) Pick-up motor (M16) I: Varies depending on the length of copy paper. Figure 3-471 3-146 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 205: Control Panel

    PCB. Input key, LCD panel display LED Control panel controller PCB VR911 Interface unit Display memory controller DC controller PCB Figure 3-501 3-147 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 206 Row driver Row driver Micro- Micro- processor processor Touch panel Key control panel LED display DC controller PCB Control panel controller PCB Figure 3-502 3-148 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 207 When the temperature near the control panel decreases, the resistance to the thermistor increases, decreasing the supply voltage (V ) to the LCD. 3-149 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 208: Fans

    Figure 3-602 shows when each fan turns ON. FM11 FM12 FM10 FM15 FM3 FM4 FM14 Figure 3-601b Figure 3-601a 3-150 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 209 Transfer charging assem- Drawing Exhausts outside air to the transfer char- bly dust proof fan ging assembly to prevent collection of toner. Table 3-601 3-151 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 210 *Each fan continues to rotate after the front door and the delivery door have been opened. : High-speed rotation : Low-speed rotation Figure 3-602 3-152 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 211: Power Supply

    DC controller PCB J118-A2 AC0 ON 24VR power supply circuit J118-A1 AC1 D J118-A4 MSW ON DC power supply PCB J118-A6 PW OFF Figure 3-701 3-153 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 212 ( REMOTE to stop the 24VU power supply; 24VUN for error detection for the SSR and the lamp regulator (AC 3-154 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 213 AC input. 3-155 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 214 Detecting voltage during high voltage error 12VU1 Relay 3 driving voltage 12VU2 Relay 1/2/4 driving voltage DC controller, sensor and etc. driving voltage Table 3-702 3-156 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 215 Rectifier smoothing circuit 2ndary 12VU2 rectifier smoothing Switching circuit regulator 12VU voltage detection AC0ON Figure 3-703 (DC power supply circuit block diagram) 3-157 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 216 3. OPERATIONS AND TIMING 3-158 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 217: Computer Form Feeder)

    Signals (data) sent by the C.F.F. to the copier. Original leading edge signal (CFLE) Signals sent by the C.F.F. to the copier. Copying is executed based on these signals. Table 3-801 3-159 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 218 Cooling fan 1 (output)FM1/2D When '0', FM1/FM2 rotates. Cooling fan 2 (input)FM1A when '1', the fan motor (FM1/FM2) stops. (input)FM2A J2-1 C.F.F. motor Figure 3-802 3-160 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 219 SW30 (OFF); the power to the sorter is limited to when MS5 of the C.F.F. is ON. 24VU To sorter Figure 3-803 3-161 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 220 C.F.F. controller PCB C.F.F. motor C.F.F. white plate Original leading edge sensor(PI1) Delivery roller Tractor C.F.F. lamp Exhaust Photosensitive drum Figure 3-804 3-162 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 221 C.F.F.’s white plate. (reference is to PI1; Figure 3-807) Photosensitive drum Figure 3-807a Photosensitive drum Figure 3-807b 3-163 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 222 7 The C.F.F. motor (PM1) rotates counterclock- wise and moves the continuous paper to a point where its leading edge can be read. (Figure 3-811) Photosensitive drum Figure 3-811 3-164 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 223 Photosensitive drum Figure 3-813b 1st page Perforation 2nd page Perforation Photosensitive drum Figure 3-813c 3-165 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 224 C.F.F. position sensor (Q6) C.F.F. mirror motor (M15) C.F.F. mirror home position sensor (Q32) Surface potential measurement AE measurement Registration clutch (CL10) Figure 3-814 3-166 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 225 Copyboard glass No. 4 mirror Zoom lens C.F.F. mirror No. 1/2/3 mirror position with C.F.F. in use Photosensitive drum Figure 3-815 3-167 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 226 C.F.F. lamp Copier Scanning Relay circuit lamp Activation circuit Lamp regulator Zoom lens Potential measurement DC control PCB Potential sensor Photosensitive drum Figure 3-816 3-168 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 227 205.7 mm (8.1/2 in) (17) A4R (LTR) 79% (74%) 228.6 mm (9 in) 279.4 mm (11 in) (22) A4R (LTR-R) 96% (94%) table 3-802 3-169 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 228 (C.F.F. operation). C.F.F. controller PCB FM1A Micro- Rotation signal output circuit processor FM2A Rotation signal output circuit Figure 3-817 3-170 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 229 You may set the machine in service mode ( ) so that each hole may be checked instead of every other hole. 3-171 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 230: Specification And Adjustment

    REGIST_L : between 63% and 50% Paper Left/right non-image width A4R,B5R,B4, 2.75 ± 2.3mm A3,LTRR +1.5 Other sizes 3.0 ± 2.55mm 4.0+1.5-mm -1.0 Table 3-901 Figure 3-902 3-172 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 231 0 ±2.0 mm in Direct. After adjustment, enter ‘0’. Screws Figure 3-905 3-173 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 232 If the display alternates between ‘F5’ and ‘F9’, indicating an adjustment error, start over. 9) Press the Reset key twice to end service mode. 3-174 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 233 Reference: A press on the Copy Start key during CFFAE automatic adjustment will not initi- ate copying operation or C.F.F. feeding operation. 3-175 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 234 2) Press the service mode key with a hex key. 3) Select ‘RFAE_F5R’ and ‘RFAE_F9R’ in service mode ( 4) Hereafter, perform the same steps as for left pick-up. 3-176 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 235 ) twice. Initiating non-automatic control mode fix all outputs of corona current control, intensity control, and developing bias control to their respective default values. 3-177 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 236 0 ±30 V. Figure 3-910 Note: If the value is not 0 ±30 V, suspect a fault on the DC controller PCB. 3-178 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 237: Checking The Environment Sensor

    11)Turn OFF the power switch. agent. 12)Remove the potential sensor checking electrode. 13)Install the blank exposure lamp assembly. 14)Turn ON the power switch. 3-179 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 238: Service Mode

    The machine starts service mode and indi- cates ‘$’ in the upper left corner of the mes- sage display. Figure 3-1001 (service mode switch) 3-180 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 239 DOC_ST_L REGIST_L DOC_ST_M LIGHT_ 5L LA_LCKPS LIGHT_ 5PL RF_LENSY GLEAM_ 5L P_INTL_R CFFRGST P_INTL_L CFFLIGHT RF_AEF5L CFFGLEAM RF_AEF9L CFFAESLP RF_AEF5R RF_AEF9R Figure 3-1002 3-181 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 240 When making copies using the C.F.F., data for the C.F.F. is displayed. • While making copies in photo mode, data for photo mode is displayed. 3-182 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 241 Indicates the machine internal humidity. Unit: %, g/kg :The ratio and amount of the humidity displayed are measured when the previous copy is made. 3-183 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 242 Primary charging assembly, transfer/separation charging assembly Pre-transfer charging assembly, transfer/separation charging assembly Primary charging assembly, pre-transfer charging assembly, transfer/separation charging assembly table 3-1002 3-184 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 243 BIAS Indicates the DC value of the developing bias. Unit: V • The indication will be ‘0’ when the HVT unit turns OFF. 3-185 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 244 DCMET_3 Indicates the output value of original size detection 3. 0 / 1 DCMET_4 Indicates the output value of original size detection 4. 0 / 1 3-186 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 245 R&D control number ROM type Version No. Country Language Others 0:Common, 1:Japanese, 2:English, 3:French, 4:German, 5:Danish, 6:Dutch, 7:FInnish, 8:Italian, 9:Norwegian, A:Portuguese, B:Spanish, C:Swedish 3-187 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 246 Indicates the times that the copier jam are occured. DH_JAM Indicates the times that the jams of the RDF and C.F.F. are occured. 3-188 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 247 3, for paper deck; 8, for multifeeder; 9, for duplexing unit). HHHHHHH Indicates the total copy count by source of paper. JJJJJ Indicates the size of paper. 3-189 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 248 Door open jam (while feeding copy paper) Original trailing edge jam/feeding system fault Door open jam (during stapling) Table 3-1004 (sorter) Tale 3-1005 (C.F.F.) 3-190 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 249 After right pick-up, there is a difference of 15 mm or more ing edge skew in terms of length in the timing at which the original leaves S15 and S16. Table 3-1006a (RDF) 3-191 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 250 115 mm in terms of length. Reversal station- S5 detects an original for ‘feeding direction length x 1.5’ mm in terms of length. Table 3-1006b (RDF) 3-192 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 251 The count returns to ‘0’ when the power switch is turned OFF/ON. Table 3-1006c (RDF) 3-193 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 252 0 1 0 0 1 1 0 0 0 1 1 1 1 0 0 0 Screen 2-1 2 I/O DISPLAY P034 : 0069 H Screen 2-2 3-194 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 253 Middle side tray pick-up roller releasing MSPRSD J604-B4 1: SL22 ON solenoid (SL22) drive signal Middle side tray pick-up roller (CL15) drive MSPUCD J604-A4 1: CL15 ON signal 3-195 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 254 High speed Power supply cooling fan (FM6) J111-B5 Developing assembly heat exhaust fan (FM14) J116-1 Fan motor 2 high-speed rotation drive signal FMDH2 3-196 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 255 Duplexing unit pick-up motor (M25) drive SMON J120-A3 1: ON signal Re-pick up assembly releasing solenoid DPSSD J120-A1 1: SL8 ON (SL8) drive signal 3-197 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 256 Vertical path 1 paper detection (Q47) signal PS47D J111-A5 1: Paper present Vertical path 0 paper detection (Q46) signal PS46D J112-A5 1: Paper present 3-198 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 257 Fixing drive stop solenoid (SL17) drive signal FXDSD J126-B1 1: SL1 7ON Cleaning belt solenoid (SL1) drive signal CLBSD J125-B5 1: SL1 ON Not used 3-199 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 258 P012 Digit signal 0 (internal signal) 1: Output (output) Digit signal 1 (internal signal) 1: Output Digit signal 2 (internal signal) 1: Output 3-200 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 259 1: ON DIP switch 1 signal (counter mode) 1: ON DIP switch 1 signal (Japan/overseas) 1: ON DIP switch 1 signal (Japan/overseas) 1: ON 3-201 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 260 Factory mode P021 Factory mode P022 Not used (input) Upper front tray paper length detection UTAS J115-A4 1: Paper running (Q58) signal short. 3-202 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 261 1 at ON. Middle side tray open signal MSOP J603-B7 0: Open Middle side tray lifter position detection MSLTP J602-A11 1: Upper limit. (Q72) signal 3-203 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 262 Upper side tray open LED (SWLED3) signal USLD J603-B1 0: ON Middle side tray lifter motor (M23) drive signal MSLMD J601-B11 0: M23 ON 3-204 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 263 Paper jogging guide motor (M11) drive signal 0: ON (input) Not used Not used CPU wire select signal Not used Not used Not used Not used 3-205 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 264 Internal temperature detection signal J104-A2 (input) P037 Multifeeder paper width detection (VR1) MPSZ J102-B2 (input) signal P038 Internal humidity detection signal HUM1 J104-A4 (input) 3-206 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 265 Pick-up motor clock detection signal (S9) PCLK Alternates 0 and 1 Pre-registration detection signal (S17) 0: Paper present Not used Not used Not used 3-207 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 266 0: ON Solenoid 2 drive signal SL2D 0: ON Not used Pick-up roller home position detection signal PRHP2 0: HP 2 (S21) Not used 3-208 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 267 RDF open detection signal (S31) RFOS 1: Closed Manual feed set detection signal (S32) MFST 1: Paper present Sub tray detection signal (S28) 1: Closed 3-209 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 268 Feeding motor (M8) drive signal 0: ON Feeding motor CW rotation signal 1: CW Feeding motor mode 1 signal Feeding motor mode 2 signal 3-210 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 269 P079 Image leading edge sensor (S20) AD value P080 Manual feed set sensor (S32) AD value P081 Original sensor 2 (S27) AD value 3-211 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 270 Paper retaining solenoid (SL3) drive signal PHSLD 1: ON Stapler unit position fixing claw releasing HDRSLD 1: ON solenoid (SL2) drive signal 3-212 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 271 Alternates 0 and 1 Feeding motor (PI5) clock signal FMCLK Alternates 0 and 1 Lead cam home position detection signal 1: ON (PI20) 3-213 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 272 Sub reference wall home position detection GWHP 1: HP signal (PI 13) Stapler unit swing home position detection SWHP 1: HP signal (PI 9) 3-214 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 273 DIP switch 1-2 detection signal 1: ON DIP switch 1-1 detection signal 1: ON Joint signal (PI1) JNTS 1: Connected. Not used Not used Not used 3-215 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 274 Bin external paper detection signal (PI 7) 1: Paper present. Feeding guide up signal (PI 2) 1: UP Not used Not used Not used 3-216 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 275 (S4) D/A output value P113 Push bar drive motor current value (M7) P114 Bin paper sensor 2 adjustment value (S7) D/A output value 3-217 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 276 J3-5 0: Rotate FM2A J3-6 C.F.F. home position (MS4) signal HPSET J6-7 0: HP – – P119 Original width value DOWD J4-2 Hexa-decimal 3-218 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 277 A higher setting will increase the cor- of the multifeeder paper width +127 rection data, thereby increasing the detecting variable resistor. value of detection width. 3-219 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 278 (1st side) SEP_2 Use it to adjust the current for the separation charging assem- bly. (2nd side) 3-220 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 279 Use it to adjust the intensity for -128- A higher setting will increase the den- newspaper originals in AE +127 sity of newspaper originals. (p. 3-174) mode 3-221 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 280 A higher setting will decrease the copy exposure for overlay copying at density, thereby generating lighter 50% to 63% ratio. (in non- copies. potential control) 3-222 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 281 +127 sity of a newspaper original, thereby per originals in AE mode for generating darker copies. copying using the C.F.F. 3-223 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 282 • However, the settings must be B4_PSZ size when making two- between 180 and 299 mm because sided/overlay copies. of mechanical constraints. B5_PSZ 3-224 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 283 • However, the settings must be LTRR_PSZ size when making two- between 180 and 299 mm for sided/overlay copies. mechanical constraints. LGL_PSZ 3-225 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 284 A higher setting will increase the mar- gin. PRIMARY Use it to correct the application 8-254 voltage for the primary charg- ing assembly. (for factory adjustment) 3-226 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 285 Use it to turn ON the LCD (all ON). A press on the key will turn the entire LCD white for 3 sec, blue for 1 sec, and back to normal. 3-227 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 286 C.F.F. mirror. C.F.F. mirror. (Be sure to press the once again to return the mirror to its original position.) 3-228 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 287 Remarks AE_ADJ Use it to execute density measure- See p. 3-174. (only if PO.CONT is ON.) ment level automatic adjustment for AE mode. 3-229 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 288 CFFAEADJ Use it to execute density measure- See p. 3-175. (only if PO.CONT is ON.) ment level automatic adjustment for C.F.F. AE mode. 3-230 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 289 DPOT: XXX V DVDT: XXX V Screen 4-5 Item Description Remarks GRID_ADJ Use it to adjust the primary charging See p. 3-177. assembly grid voltage. 3-231 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 290 # # . # # Row number of touch panel (00 to 19; hexadecimal notation) Column number of touch panel (00 to 15; hexadecimal notation) 3-232 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 291 Use it to clear the self diagnosis To clear the self diagnosis code history. Press code history shown in service mode key so that the indication will be ‘1’. 3-233 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 292 Use it to clear the data in the RAM A press on the key will initialize the data on the DC controller PCB. in the RAM. 3-234 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 293 Enter the appropriate value using the numeric keypad. 5 USER OPTION 2SIDE_SL 1 (0:0FF,1:ON) FUZZY 0 (0~4) DENS_IND 0 (0:9Lv,1:17Lv) COPY_LIM 999 (1~999) FIX_TEMP 0 (0~3) Screen 5-1 3-235 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 294 (If fixing 0: 155°C (default) 1: 160°C faults occur, select 1 2: 150°C 3: 165°C or 3.) 3-236 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 295 Use it to select the Use it to select the appropriate Use it to select the appropri- appropriate paper paper size. ate paper size. size. 3-237 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 296 Normally, use the RDF for AE; if 0: RDF (default) the copier for AE. the RDF AE mechanism fails for 1: copier some reason, select copier AE. 3-238 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 297 3-239 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 298 “The cleaning web mode.) needs to be 1: ON (Indicates the message replaced” is shown. always.) 3-240 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 299 See p. 3-71. developing bias light 1: -20 V area potential DC 2: -40 V voltage. 3: -60 V 4: +20 V 5: +40 V 3-241 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 300 L-size upper front tray pick-up copy counter and non- 00000000) L_TRAY_2 L-size lower front tray pick-up counter default size) L_TRAY_3 L-size paper deck pick-up copy counter 3-242 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 301 S-size upper front tray pick-up copy counter length) 00000000) S_TRAY_2 S-size lower front tray pick-up counter S_TRAY_3 S-size paper deck pick-up copy counter 3-243 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 302 S_2_SIDE S-size two-sided copy counter L_PU Left pick-up original feed counter R_PU Right pick-up original feed counter Copy counter with C.F.F. in use 3-244 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 303 When the size of the original is identified after the original has been pulled into the RDF. 5 C.F.F. • When pick-up occurs for C.F.F. copying. 3-245 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 304 Use it to adjust the image leading edge A higher setting advances the position in stream reading mode. copier registration ON timing, thereby increasing the margin. (unit: 0.1 mm) 3-246 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 305 (The RDF changes the left/right pick-up position.) P_INTL_L Use it to adjust the RDF (2-on-1 mode) left pick-up original-to-original distance. (The RDF changes the left/right pick-up position.) 3-247 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 306 -30 ~ +30 LA_SPEED Use it to adjust the stream reading A higher setting will increase the speed. stream reading speed. (unit : 0.1%) 3-248 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 307 1, manual registration sensor, image leading edge sensor, or original sensor 2. 3. The Copy Start key remains disabled when this screen is on to prevent malfunction. 3-249 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 308 3.For these items, the key on the copier’s control panel will cause pick-up and delivery regis- tration instead of SW1 on the RDF controller PCB. 3-250 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 309: Self Diagnosis

    • The length used of the cleaning belt insi- E004 de the fixing assembly has exceeded a • Cleaning belt sensor (Q8, Q9; fault) specific value. • DC controller PCB (fault) 3-251 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 310 •.DC controller PCB (fault) (M11) is being generated, the paper jog- ging guide home position signal (THP) is generated for 2 sec or more. 3-252 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 311 •.While the scanner cooling fan (FM1, E214 FM11; fault) FM10, FM11) is rotating, an error signal • DC controller PCB (fault) is generated for 2 sec or more. 3-253 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 312 • The relay (RL3) in the power supply unit E802 • DC controller PCB (fault) does not operate in spite of the auto power-off signal. 3-254 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 313 2.E202 and E204 lock the keys but do not indicate a code. To make a check, start service mode ), and select ‘B_ER1’, ‘B_ER2’, or ‘B_ER3’. 3.For E801, the copier will shut its power without indicating a code. 3-255 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 314 •.Manual feed registration sensor (S19; fault) •.Image leading edge sensor 1 (S20; fault) • Original sensor 1 (S1; fault) • Original sensor 2 (S27; fault) 3-256 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 315 OFF and then ON. You can continue to make copies by disconnecting the RDF’s lattice connector and placing originals on the copyboard. 3-257 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 316 (PI 8) is off for 250 msec. •.The input signal from the swing home position sensor (PI.9) does not change for 1 sec or more. 3-258 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 317 ‘E5XX’ on its control panel. *A state in which an E code is indicated. 3-259 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 318 OFF/ON the power switch after returning the C.F.F. to home position, since the C.F.F. will have left home position and cut off the power to the sorter. 3-260 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 319: Chapter 4 Mechanical System

    If possible, avoid operating the machine with any of its parts removed. Unless otherwise noted, reassembly is the reverse of disassembly. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 320: I. Externals

    C. Replacing the ROM......4-102 EXPOSURE SYSTEM......4-61 A. Scanning Lamp Assembly....4-61 B. Standard White Plate Assembly ..4-62 C. Pre-Exposure Lamp Assembly..4-63 D. Blank Exposure Lamp Assembly..4-63 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 321: Externals

    Hopper upper cover i Paper deck cover r Hopper supply mouth cover o Multifeeder tray t Upper right cover (4) !0 Front left cover (2) COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 322 Fixing assembly cover (2) u Buffer assembly upper cover (2) r Delivery assembly cover (2) i Buffer assembly inside cover (2) o Fixing assembly lower cover (2) COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 323 (especially the area around the magnet plate). At this time, check to make sure that no droplet of water remains. Figure 4-106 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 324: Control Panel

    Figure 4-107 Figure 4-108 3) Open the front door, and remove the six mounting screws e; then, remove the control panel unit r. Figure 4-109 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 325: Door Switch Assembly

    Take care when tightening the self-tapping screws on the PCB. Figure 4-112 5) Remove the eight door switch harnesses, and remove the door switch assembly. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 326: Fans

    3) Disconnect the connector e, and remove the two mounting screws r; then, remove the scanner cooling fan 1 t. Figure 4-113 Figure 4-115 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 327 4) Remove the two screws e, and disconnect the connector r; then, remove the scanner cooling fan 3 t. Figure 4-118 Figure 4-117 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 328 3) Remove the two mounting screws e, and dis- connect the connector r; then, remove the feeding fan assembly t. Figure 4-121 Figure 4-120 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 329 3) Remove the two mounting screws e, and dis- connect the connector r; then, remove the scanner motor cooling fan assembly t. Figure 4-123 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 330 2) Disconnect the connector q, and loosen the six mounting screws w (front, rear); then, remove the buffer path upper unit e. Figure 4-128 Figure 4-127 4-10 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 331 Transfer charging dust-proofing duct 1 Figure 4-131 3) Remove the drum unit. (See p. 4-64) Figure 4-129-1 4-11 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 332: Removing The Power Supply Cord Mount

    (Check to make sure that no droplet of water remains.) Figure 4-136 Transfer charging dust-proofing duct 3 Figure 4-134 4-12 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 333: Removing The Counter Assembly

    Remove the mounting screw e, and disconnect the connector r; then, remove the counter assembly t togeth- er with the support plate. Figure 4-137 4-13 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 334: Drive System

    !0 ; then, remove the pick-up Tensioner motor. Right Left Screw Figure 4-203a 3. Tie the one screw of the tensioner. 4. Assemble the hopper assembly. Figure 4-202 4-14 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 335 4. MECHANICAL SYSTEM 2. Routing the Scanner Drive Cable Figure 4-204 4-15 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 336 At this time, be care- Clamp ful not to touch the deflecting plate. Screw Figure 4-207 4) Remove the tools. 4-16 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 337: Lens Drive Assembly

    3) Remove the three mounting screws r, and remove the lens cover t. Figure 4-208 Figure 4-209 4-17 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 338 4) Remove the two mounting screws y, and lens cover. remove the X direction drive belt cover u. Figure 4-212 4-18 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 339: Drum Motor Assembly

    When installing the drum motor to the copi- er, fix it in place with screws while moving the motor to the delivery side. 4-19 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 340: Pick-Up Motor Assembly

    Figure 4-215 4) Disconnect the three connectors y, and remove the screw u; then, shift the harness guide i to the side. Figure 4-216 4-20 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 341: Fixing Motor Assembly

    Figure 4-220 4-21 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 342: Pick-Up Drive Assembly

    5) Remove the five mounting screws, and remove the DC power supply unit. (p. 4-95) 6) Remove the mounting screw, and remove the harness guide plate q. Figure 4-223 4-22 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 343 Figure 4-224 10) Remove the four mounting screws !1 , and remove the pick-up drive assembly !2 to the Figure 4-226 front. Figure 4-225 4-23 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 344 Figure 4-228 4-24 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 345 Disconnect the five connec- tors w, and remove the two mounting screws e; then, remove the scanner motor controller PCB r. Figure 4-230 Figure 4-231 4-25 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 346 !4 together with the gear. clutch rear with the slip stop. Boss Slip stop Figure 4-235 Figure 4-233 4-26 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 347: Front Tray Drive Assembly

    Remove the drawer connector i and the four mounting screws o of the duplexing unit, and remove the front tray drive assembly !0 . Figure 4-239 Figure 4-237 4-27 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 348: Fixing Relay Drive Assembly

    3) Remove the sprig of the tensioner, and remove the four mounting screws q; then, remove the fixing relay drive assembly w. Figure 4-243 Figure 4-241 4-28 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 349 If the buffer path unit is disassembled. Do not pull over the buffer path unit far from body. The metal plate may jump to you. Figure 4-247 4-29 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 350 If the buffer path unit is disassembled. Do not pull over the buffer path unit far from body. The metal plate may jump to you. Figure 4-247 4-29 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 351: Cw/Ccw Rotation Roller

    Be sure to mark the position with a scribe before loosening the tension of the fixing drive assembly. Marking Figure 4-249 Figure 4-251 4-30 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 352 CW/CCW rotation roller drive assembly to each gear so that the values are as shown in Figure 4- 252. 600 100g Adjusting screw 600 60g Adjusting screw Figure 4-252 4-31 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 353: Multifeeder Assembly

    (Take care not to drop the parallel pin.) Figure 4-301 Figure 4-303 4-32 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 354 When installing the pick-up roller, be sure that the marking shown in Figure 3-305 is toward the rear of the copier. Marking Figure 4-307 Figure 4-305 4-33 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 355 4) Remove the spring q at the front, and remove it from the releasing lever w. Figure 4-310a Figure 4-309 4-34 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 356: Paper Deck Assembly

    When installing it to the pick-up roller shaft, be Figure 4-311 sure that the marking (8) is toward the rear of the copier. Mark Pick-up roller (rear) Figure 4-314 Figure 4-312 4-35 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 357 Bearing (one-way) (rear) Figure 4-316 5) Remove the mounting screw u, and remove Figure 4-319 the separation roller assembly cover i. Figure 4-317 4-36 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 358 4-37 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 359: Front Tray Assembly

    You could deform the separation plate if you held Adjusting screw the plate when lifting the front tray. Pick-up roller release solenoid Figure 4-323 Separation plate Figure 4-342 4-38 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 360 When installing it to the pick-up roller shaft, be sure so that the marking (5) faces the front of the copier. Markings Front copier Figure 4-346 Front Figure 4-344 4-39 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 361 1) Remove the separation roller. (p. 4-46) 2) Remove the two mounting screws q, and remove the C-roller stay assembly w. Figure 4-348 4-40 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 362 Paper sensor support plate Adjusting screw Pick-up roller Paper Feeding roller Bend Separation roller Lifter Separation plate Figure 4-351 Figure 4-350a (front tray separation plate assembly) 4-41 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 363 Place two packs of copy paper (A3), and tight- en the screws when the tension at each cable end is as indicated (reading of the spring gauge). Figure 4-352a 4-42 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 364: Pick-Up Vertical Path Roller Assembly

    (To facilitate the work, you may remove the solenoid from the copier.) Latch claw 14 mm or more Plunger Adjusting screws Figure 4-354 Figure 4-356 4-43 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 365 10)Remove the two mounting screws !9 , and remove the two float pins @0 . 11)Remove the C-ring @1 , and remove the gear @2 . Figure 4-358 4-44 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 366 @7 to the left. Figure 4-362 15)Remove the pick-up vertical path roller togeth- er with the shaft toward the front. Figure 4-361 4-45 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 367 7) Remove the three wire saddles t from the gear.) high-voltage transformer assembly; then, remove the high-voltage harness y from the harness guide. Figure 4-364 Figure 4-366 4-46 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 368: Feeding Assembly

    14)Remove the E-ring !1 and the bearing !2 from the feeding assembly support shaft, and pull out the feeding assembly slowly toward the front. Figure 4-370 Figure 4-368 4-47 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 369 @0 and the bush @1 ; then, remove the wire cleaning tool drive shaft @2 . Figure 4-374 Figure 4-372 4-48 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 370 (7 in total); then, remove the transfer/ separation charging assembly. Figure 4-375a Figure 4-376 Figure 4-375b 4-49 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 371: No. 2 Feeding Assembly

    !3 . Remove the two springs !4 , and pull out the No. 2 feeding assembly !5 toward the front. Figure 4-378 Figure 4-380 4-50 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 372 S, M, and L paper deflecting plate drive solenoids are pushed in. S-size paper L-size paper M-size paper deflecting plate deflecting plate deflecting plate Figure 4-381 4-51 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 373: Duplexing Unit

    (5) on the collar faces the coupling side Figure 4-382 (rear of the copies). Markings Coupling Rear of copier Figure 4-384 4-52 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 374 Install it so that the marking (white dot) faces the rear of the copier. Markings Bearing Rear copier Figure 4-386 4-53 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 375 Figure 4-389 Figure 4-391 4-54 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 376 A, thereby increasing the separation with the paper feeding surface in response to a pressure. push on the solenoid of the plunger. Solenoid Figure 4-395 Figure 4-393 4-55 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 377 Tighten the two screws while pulling the re- pick up motor in the direction of the arrow with a force of 500 g. 500g Figure 4-397 4-56 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 378: Buffer Assembly

    2) Open the front covers. 3) Release the buffer assembly. 4) Remove the mounting screw. Figure 4-401 Figure 4-399 4-57 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 379 E-rings y, spring u, and bushing from the rear of the roller shaft. No. 1 paper deflecting plate No. 1 paper deflecting plate drive solenoid Figure 4-405 Figure 4-403 4-58 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 380 4) Remove the E-ring o and the bearing !0 ; then, remove the lower feeding roller !1 . Figure 4-407 Figure 4-409 4-59 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 381 6) Remove the E-ring !0 and the bearing !1 from the front. 7) Remove the four mounting screws !2 . 8) Remove the delivery roller !3 . Figure 4-410 4-60 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 382: Exposure System

    6.Do not deform the reflecting shade. 7.Check to make sure that the protruding side (the enclosure part) of the scanning lamp is toward the left. Figure 4-412 4-61 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 383: Standard White Plate Assembly

    Figure 4-416 Figure 4-414 5) Remove the three mounting screws r, and remove the standard white plate t. Figure 4-415 4-62 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 384: Pre-Exposure Lamp Assembly

    (J660) if you pulled on the cord excessively after setting the blank exposure assembly. (Figure 4-418) Figure 4-417 Potential sensor Connector (J660) Cord Figure 4-418 4-63 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 385: Charging Assembly

    5) Remove the two mounting screws t, and remove the developing assembly duct y. 3) Remove the transfer charging dust-proofing fan. (see p. 4-11) Figure 4-503 4-64 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 386 !0 . to turn the mounting screw on the drum positioning block. Hook here. Figure 4-506b Figure 4-505 4-65 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 387 Figure 4-510 5) Remove the gear and the bearing (front, rear) of the drum shaft. Figure 4-508 4-66 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 388 Caution: Check to make sure that the rear bearing is securely set. Operating the drum without the rear bearing will damage the drum. 4-67 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 389 Figure 4-513 Figure 4-515 5) Push in the pre-exposure cover, and install the mounting plate and the photosensitive drum; then, install the drum unit. 4-68 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 390 ( C K - 0 4 2 9 ) w i l l n o t t u r n i n t o p a s t e when performing step3). • Check to make sure that no drum cleaning powder (CK-0429) remains on the drum. 4-69 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 391: Potential Sensor Assembly

    PCB. (Check to make sure that the potential sen- Figure 4-518 sor and the potential measurement PCB have the same number.) 4-70 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 392: Pre-Transfer Charging Assembly

    Caution: In case of installing the charging assembly, be sure the charging assembly is set com- pletely then, install the stopper plate. 4-71 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 393: Charging Wire

    4) Cut the excess end of the twisted charging wire by a nipper. 5) Hook the loop on the stud. Reel Charging electrode (front) (rear) Charging wire Figure 4-523 4-72 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 394 • The charging wire is in the V-shaped charging wire positioning groove. Screws (correct) (wrong) Grid side Screws (correct) (wrong) Figure 4-527 Figure 4-526 Primary Charging Wire 4-73 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 395 (clockwise), and fix it in place with a screw. Stud A Stud B Figure 4-529 4-74 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 396 A full turn of the screw decrease. changes the position of the charging wire by about 0.7 mm. 4-75 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 397: Developing Assembly

    3) Remove the screw t (w/ washer) used to keep the grounding wire in place; then, remove the developing assembly stopper y. Figure 4-602 4-76 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 398 Figure 4-603 e When installing the developing assembly, take care so that it will not hit any other parts. Figure 4-605 4-77 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 399 C-ring o in the order shown in Figure 4-607 from the cylinder shaft at the front of the developing assembly. Figure 4-609 Figure 4-607 4-78 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 400: Hopper Assembly

    Ruler with water. Do not use solvent. Hopper supply mouth cover Slide lid Hopper inside cover Figure 4-611 4-79 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 401: Drum Cleaning Assembly

    3) Remove the five mounting screws q, and detach the cleaning blade from the blade sup- remove the cleaning blade assembly w. port plate. Figure 4-705 Figure 4-702 4-80 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 402 (Such will occur if toner or foreign matter exists in the groove of the blade support plate; clean the groove in advance of installing the blade.) 4-81 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 403: Separation Claw Drive Assembly

    5) Remove the three mounting screws y, and remove the waste toner feeding assembly from the copier. Figure 4-709 Figure 4-711 4-82 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 404: Waste Toner Receptacle

    3) Pull out the waste toner receptacle from front side. Caution: In case of installing, the waste toner recep- tacle should be pushed up to the end. 4-83 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 405: Fixing System

    Figure 4-800 Caution: 2. Locking Mechanism When lifting the fixing assembly, avoid the connector assembly at the rear. Connector assembly Figure 4-801 Figure 4-803 4-84 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 406 3) Remove the mounting screw q, and slide the paper guide plate w in the direction of the arrow to remove. Rear Figure 4-805 Figure 4-807 4-85 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 407 Figure 4-810 Front 5) Pull out the heater slowly toward the rear being careful not to damage it. Figure 4-809-1 4-86 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 408 Figure 4-812 5) Remove the four bearing retaining plates r (front, rear), and remove the bearing t. Figure 4-811 Figure 4-813 4-87 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 409 Figure 4-817 w Install the upper roller so that the side with the A (stepping shaft) is toward the rear. front rear Figure 4-815 4-88 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 410 4) Remove the mounting screw, and remove the lower separation claw together with the support plate. 5) Remove the tension spring, and remove the lower separation claw. 4-89 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 411 3) Remove the two mounting screws q, and open the cleaning belt unit. Figure 4-824 Figure 4-822 4-90 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 412 (left) Cleaning belt roller Cleaning belt take-up roller Cleaning belt feeding roller Cleaning belt feeding roller (left) (right) Figure 4-826 Figure 4-828 4-91 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 413 Figure 4-832 7) Open the cleaning belt unit, and open the cleaning belt feeding roller (right). Figure 4-830 4-92 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 414 11)Close the cleaning belt unit, and fix it in place with two mounting screws. 4-93 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 415 Table 4-801 4) If the dimensions are not as indicated, turn the pressure adjusting nut at the rear and the front to adjust. 4-94 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 416: Electrical System

    3) Remove the DC controller PCB. (Figure 4-901) 4) Disconnect the connectors, and remove the cable from the wire saddle. Figure 4-903 4-95 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 417 , and remove the three mounting screws !1 ; then, remove the high-voltage transformer assembly !2 . Figure 4-905 Figure 4-907 4-96 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 418: Externals

    1) Slide the releasing knob q in the direction of nect the connector e. the arrow (Figure 4-1002), and remove the upper cover w. Figure 4-1002 Figure 4-1004 4-97 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 419: Exhaust Fan

    Figure 4-1005 2) Remove the screw e of the width detecting VR. Figure 4-1007 Figure 4-1006 4-98 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 420: C.f.f. Illuminating System

    Use a stepped screw for the rear of the reflect- ing plate. w Check to make sure that the thermal switch is in contact with the reflecting plate. Figure 4-1102 4-99 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 421: C.f.f. Drive/ Electrical System

    The screw e is a self-tapping screw; take care not to tighten it excessively. 3) Remove the microswitch actuator t. Figure 4-1204 Figure 4-1202 4-100 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 422: Motor

    !0 is in contact with the belt and is Figure 4-1206 pushing to apply a specific tension. 4-101 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 423: Replacing The Rom

    C.F.F., and remove the ROM cover Figure 4-1209 3) Replace the ROM e while being careful not to damage the elements nearby. Figure 4-1210 4-102 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 424: Remote Diagnostic Device Ii

    UNPACKING AND INSTALLATION ..5-2 INSTALLING THE COPY DATA III. RELOCATING THE MACHINE ....5-30 CONTROLLER-A1.......5-41 INSTALLING THE CONTROL CARD V ..5-31 VII. INSTALLING THE CARD READER-A1..5-51 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 426 18 cm from any wall.) Exhaust 18 cm (7.1 inch) Wrong arrangement 1 Figure 5-3 3.2 m (10 ft 8 inch) Figure 5-1 Wrong arrangement 2 Figure 5-4 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 427 • Toner • Operator's Manual • Grip assembly cover/mounting screw (4 pcs) • Hinge cover • Sub tray • Multifeeder tray • Multifeeder cover COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 428 Pull out the four grips, and install the grip assembly cover (accessory) to the front left and rear left and front right with screws (accessory). COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 429 (Keep the metal fixing for possible relocation of the machine.) Screws Install the upper left cover. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 430 Connector assembly. Heater base assembly Remove the two screws (front, rear) of the fixing assembly locking lever (found with a tag). Screw Screw COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 431 Remove the four mountings screws, Screw and remove the two heater support plates. Heater support plate Heater support plate COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 432 Install the rear heater with two mounting screws. Take care not to damage the heater. Connect the fastons of the heaters (front, rear; total of 6). COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 433 Install the fixing assembly cover. Slide in the fixing assembly slowly Keep the front doors open, and move to the installation of into the machine. the photosensitive drum. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 434 Metal fixing Screw While holding the feeding assembly in place, remove the screwdriver used to keep it in middle position; then, lower the feeding assembly. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 435 Grounding tightened with the grounding wire; wire then, remove the developing assembly Developing assembly metal fixing. metal fixing Developing assembly locking lever Screw 5-10 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 436 Hook following; 208V Noth American model and other models, go to step 31. Release the blanking exposure unit (1 screw). Blank exposure unit 5-11 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 437 Check to make sure that the duplexing unit has been slid out. Screw 5-12 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 438 Wrap the photosensitive drum with copy paper to prevent exposure to natural light. Gear Bearing Remove the gear and bearing (front, rear) from the drum shaft. 5-13 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 439 •.If foreign matter is found, dry wipe the surface with lint- drum is free of foreign matter. free paper, taking care not to scratch the photosensitive drum. 5-14 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 440 Check to make sure that the Drum unit front plate gears are engaged properly and are free of gaps. (front) (top view) 5-15 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 441 Drum positioning block (Cross section) Install the drum positioning block. Clean the feeding assembly, and keep the feeding assembly up with a screwdriver once again. 5-16 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 442 Toner level sensor 5-17 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 443 Push in the waste toner receptacle Screw Waste toner receptacle Packing plastic Install the inside left cover with two screw, and set the front tray. 5-18 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 444 For LGL/LTR-R paper, remove the face plates, and insert the sub tray. Sub tray 5-19 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 445 Remove the paper deck rear cover. For B4/LGL paper, perform this step. Skip the step if B5/LTR-R paper is used. Screws Screws Paper deck rear cover 5-20 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 446 Screws Screws Screws Install the hinge cover, and fix it in Screw place with two screws; then, close the cover. Hinge cover Screw 5-21 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 447 Tape Attach the cassette size label. Remove the tape used to keep the sensor actuator in place. Cassette size label 5-22 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 448 Perform this step for B4/LGL; skip this step for B5/LTR. Install the paper deck rear cover. Perform this step for B4/LGL; skip this step for B5/LTR-R. 5-23 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 449 (Keep pulling the shutter until it stops.) 5-24 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 450 • A click should be heard, indicating that the toner bottle has been released. Pull the toner bottle in rear upward direction to remove. Close the hopper top cover. 5-25 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 451 Screw Set the paper size guide plate of the upper/front tray to suit the appropriate paper size. Put copy paper in the tray. 5-26 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 452 Do NOT turn off the power while the machine is numeric keypad, and press the OK operating. key to execute toner supply mode. 5-27 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 453 Execute two-sided and overlay •.Make sure that no abnormal sound is heard. copying modes. •.Make sure that paper is fed normally in the duplexing unit. 5-28 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 454 /minute using the keypad, and press the OK key; then, press the OK key, select the day of the week, and press the OK key once again. 5-29 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 455 Place A3 copy paper on the copyboard glass, and tape the RDF in place. 5-30 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 456: Control Card V

    Figure 5-8 Figure 5-6 5-31 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 457 Control Card V) in the control panel. Screw Figure 5-10 13)Disconnect the shorting connector !1 shown in Figure 5-12 Figure 5-11 from the 4P connector !3 . 5-32 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 458 18)Attach the memory record sheet and the trans- parent sheet. 19)Turn ON the copier’s power switch, and check the operation of the Control Card V. 5-33 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 459 Figure 5-14 Figure 5-16 5-34 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 460 5) Fix the device to the copier’s rear cover with serial. four screws. (Use the screws that came with the copier.) LED1 LED2 LED3 BAT1 LED5 LED6 LED4 Figure 5-20 Figure 5-18 5-35 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 461 9) Set each bit of the DIP switch !8 (SW3) on the PCB of the device as indicated. LED1 LED2 LED3 BAT1 LED5 LED6 LED4 Figure 5-22 5-36 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 462 Setting LED1 LED2 LED3 BAT1 SW2-1 LED5 SW2-2 LED6 LED4 SW2-3 SW2-4 SW2-5 SW2-6 SW2-7 See step 8). SW2-8 Figure 5-23 Table 5-2 5-37 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 463 Bits on SW2 LED1 LED2 LED3 SW2-1 BAT1 LED5 SW2-2 LED6 LED4 SW2-3 SW2-4 SW2-5 SW2-6 Figure 5-26 SW2-7 See step 8). SW2-8 Table 5-3 5-38 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 464 (In response to a call, LED4 @6 (red) of the device will start to flash.) LED1 LED2 LED3 BAT1 Figure 5-29 LED5 LED6 LED4 Figure 5-28 5-39 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 465 LED1 LED2 LED3 BAT1 LED5 LED6 LED4 Figure 5-31 5-40 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 466 Copy Data Controller-A1 is used (i.e., if ID input, control by paper size, Control by toner color, control by copying mode, and control by paper type is not used). Table 5-4 5-41 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 467 B: To NOT connect the Remote Diagnostic Unit- A1 or the Copy Data Interface Board-B1, Figure 5-34 Figure 5-36b For connection, you must have the Power Supply-A1. 5-42 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 468 4) If you are using the Card Reader-A1, connect the Card Reader-A1 relay cable to J4 (9P) of the Copy Data Controller-A1. Card Reader-A1 relay cable Figure 5-37 5-43 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 469 Figure 5-38 Figure 5-40 2) Connect the 8P connector of the copier and the Copy Data Controller-A1 cable y. Figure 5-39 5-44 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 470 LED3 LED1 LED1 LED2 LED3 LED4 LED5 LED6 LED4 LED5 LED6 SW1 ON SW5 ON SW1 ON SW5 ON Figure 5-44 Figure 5-42 5-45 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 471 Then, press the MANAGE=ID key q, and press the key. is indicated. MANAGE=CARD Input Code Card ID No. Figure 5-46 Table 5-5 5-46 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 472 Set the DIP switch (SW1) of the Copy Data Controller-A1 as indicated. (LED5 will turn OFF.) Setting 1 , 2 , 3 Table 5-7 5-47 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 473 ID Nos. once again 2.The counter reading will remain after the since changing the control method number change. will clear such settings as well. 5-48 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 474 If you are installing the Interface Board-B11, Interface Board-A1, or Communication Control Board-A1 as an option, work as instructed in the respective Installation Procedure. Figure 5-53 5-49 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 475 Controller-A1 to the petty pull. 17)Check to make sure that no cable is trapped by the copier or the sorter castors. RS232C I/F connector Figure 5-54 5-50 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 476 1) Remove the two screws w, and remove the top cover q of the Copy Data Controller-A1. SW1 ON SW5 ON Figure 5-57 Figure 5-56 5-51 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 477 B: To NOT connect the Remote Diagnostic Unit-A1 or the Copy Data Interface Board-B1, Figure 5-60 For connection, you must have the Power Supply-A1. 5-52 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 478 4) Remove the six screws q, and remove the front upper cover. 6) Remove the screw t from the face plate. Figure 5-64 Figure 5-62 5-53 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 479 10)Install the control panel to the copier. Figure 5-65 8) Install the grounding wire i of the Card Reader-A1 where indicated with a screw o. Figure 5-66 5-54 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 480 Card Reader-A1. Figure 5-69 3) Fix the Copy Data Controller-A1 to the mount- ing with four screws. 5-55 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 482 CHAPTER 6 MAINTENANCE AND INSPECTION PERIODICALLY REPLACED PARTS ..6-1 III. SCHEDULED SERVICING....6-4 CONSUMABLES AND DURABLES ..6-2 SCHEDULED SERVICING CHART ..6-6 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 484 Thermal switch (fixing assembly) FH7-7154-000 1,000,000 Note: The above values are estimates only and are subject to change based on future data. Table 6-101 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 485 FY1-0883-000 1,500,000 Transfer charging wire cleaner 1 FF5-5783-000 1,500,000 Transfer charging wire cleaner 2 FF5-5782-000 1,250,000 Separation charging wire cleaner FF5-5774-000 1,250,000 Table 6-201a COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 486 250,000 100V FH7-3227-000 250,000 208/220/240V Note: The values above are estimates only and are subject to change based on the field data. Table 6-201c COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 487: Scheduled Servicing

    • Roller electrode Clean the transfer guide: • Transfer guide plate (upper, lower) • Transfer/separation charging assembly guide rail Clean the separation/feeding assembly: • Feeding belt COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 488 Put sample copies in order, and clean up the area around the machine. Record the final counter reading. Fill out the service sheet, and report to the person in charge. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 489: Scheduled Servicing Chart

    Re-pick up assembly pick-up/ feeding roller Use alcohol. Re-pick up assembly separation roller Use alcohol. Note: Take care not to touch the mirror sand lenses. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 490 Thermal switch Fixing roller (upper, lower) Use cleaning oil (TKN-0464-000). Delivery Separation claw (upper, lower) Use solvent. assembly Waste toner Waste toner case collection assembly COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 491 Figure 6-1, y Optional shutter side Note: Use the copier counter reading as guide, and carry out the works as needed. q w e Figure 6-1 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 492: Appendix

    C.F.F. CONTROLLER ......A-74 CONTROL PANEL TRANSIT PCB ..A-63 LIST OF SPECIAL TOOLS ....A-75 LCD TRANSIT PCB ......A-64 SOLVENTS AND OILS .......A-76 LAMP REGULATOR PCB ....A-65 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 494 Low-speed High-speed Feeding fan (FM4) Power supply cooling fan (FM6), Fixing assembly heat exhaust fan (FM12) Buffer assembly delivery sensor (Q60) Total copy counter COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 495 Stapler unit shift motor (M3) Stapler swing motor (M4) Stapler swing stop position sensor (MSW2) Stapler motor (M2) Paper retaining solenoid (SL3) Down Down Bin shift motor (M9) COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 496 FEEDING ROLLER CLUTCH DRIVE signal LTRSD LOWER FRONT TRAY RELEASING SOLENOID DRIVE signal MSTAS MIDDLE SIDE TRAY PAPER LEVEL DETECTION signal FILS FIXING ASSEMBLY INTERLOCK DETECTION signal COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 497 RE-PICK UP ROLLER HOME POSITION DETECTION signal UTAS UPPER FRONT TRAY PAPER LEVEL DETECTION signal SBFCD SWITCH-BACK CW DRIVE signal ULTP UPPER FRONT TRAY LIFTER POSITION DETECTION signal COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 498 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 499: List Of Special Tools

    Environment sensor For checking the TY9-3014 checking tool environment sensor. Scanner lock For adjusting the FY9-3023 positioning tool scanner position for stream reading. A-75 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 500: Solvents And Oils

    • CK-0562 (20 g) drive and friction parts Cleaning Photosensitive drum Ceric oxide • Drum cleaning powder powder Lanthanum oxide (CK0429) Neodymium oxide Praseodymium oxide A-76 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 501 Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPT.1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV. CANON INC. Printed in Japan REVISION 1 (JULY 1996) [03595/31625/74427/71720] 30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo 146 Japan...
  • Page 502 This publication is printed on 70% reprocessed paper. PRINTED IN JAPAN (IMPRIME AU JAPON) 0697AB0.6-3...

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