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5256-1
IBM 5256-1 Printer Ribbons Manuals
Manuals and User Guides for IBM 5256-1 Printer Ribbons. We have
1
IBM 5256-1 Printer Ribbons manual available for free PDF download: Maintenance Information Manual
IBM 5256-1 Maintenance Information Manual (190 pages)
Brand:
IBM
| Category:
Printer
| Size: 7.4 MB
Table of Contents
Safety
5
Table of Contents
7
Glossary of Terms and Abbreviations
12
Legend
15
Using the Ibm 5256 Maintenance Information Manual
16
Glossary of Terms and Abbreviations
16
Maintenance
16
Wiring Diagram
16
Diagnostic Aids
16
Preventive Maintenance
16
Tools and Test Equipment
16
Theory
16
Features
17
Appendix A . Index
17
Maintenance
18
Sequence-Affected Procedures
18
Locations
19
Front and Right Side Locations
19
Front and Left Side Locations
20
Back Locations
21
Printer Mechanism Bottom Locations (Print Mechanism in Service Position)
22
Printer Mechanism Base Locations
23
Power Supply Board a 1 Locations and Jumpers
24
Planar Board Bl Locations and Jumpers
25
Cabling Locations and Station Protector
27
Motor Cables (EC2 to Tpbl and TPB2)
27
Cover
29
Printer Covers
29
Adjustment
29
Top Cover Removal and Replacement
29
Back Cover Removal and Replacement
29
Front Cover Removal and Replacement
29
Control Panel and AC Cable Assembly
30
Control Panel Removal and Replacement
30
AC Cable Assembly Removal and Replacement
30
Service Positions
31
Separating the Printer from the Power Supply Board A1 for Service Positions
31
Moving the Power Supply for Printer Servicing
33
Part Numbers
33
Forms Moving Parts
34
Platen and Paper Deflector
34
Removal and Replacement
34
Platen Latches (Release Eccentrics and Springs)
35
Adjustment
35
Platen Gears and Bushing
35
Removal, Replacement, and Adjustment
35
Platen Pressure Rolls
36
Adjustment
36
Platen Gear Backlash (Play)
37
Adjustment
37
Forms Motor Gear Backlash (Play)
38
Adjustment
38
Forms Motor and Emitter
40
Removal and Replacement
40
Disassembly
41
Assembly
41
Forms Feed Emitter Disk
42
Adjustment
42
Forms Motor to Emitter Timing
43
Service Check
43
Adjustment
44
Frame
46
Service Check
46
Alignment
46
End-Of-Forms Switch
47
Service Check
47
Adjustment
47
Removal and Replacement
47
Forms Tractor Unit
49
Removal and Replacement
49
Disassembly and Assembly
49
Left Tractor Acljustment
50
Forms Tractor Unit Chain Cover
50
Service Check
50
Adjustment
50
Forms Tractor Unit Chain
52
Removal and Replacement
52
Forms Guide Rack Static Eliminator Replacement
52
Printer Emitter
53
Print Emitter Board to Pickup and Amplifier Card
53
Service Check
53
Adjustment
53
Printer Emitter Pickup and Amplifier Removal and Replacement
54
Print Emitter Board
55
Removal and Replacement
55
Print Emitter Hold down Bracket
55
Adjustment
55
Left Margin
55
Service Check
55
Carrier
57
Carrier Main and Support Shafts
57
Service Check
57
Adjustment
57
Carrier Support Shaft
58
Removal and Replacement
58
Carrier and Main Shaft
58
Belt Tensioner Assembly
59
Removal and Replacement
59
Carrier Motor and Pulley
60
Removal and Replacement
60
Carrier Leaf Spring and Bearing
60
Print Head
61
Service Check
61
Adjustment
61
Removal and Replacement
61
Print Head Forms Guide
62
Adjustment
62
Removal and Replacement
62
Print Head Cable (EC1)
63
Removal
63
Replacement
64
Oil Felt Service
65
Print Head Ribbon Lifter
65
Print Head Ribbon Shield
66
Copy Control Dial
68
Print Head Retract Ramp
68
Adjustment
68
Removal and Replacement
68
Ribbon Drive Clutches
69
Removal and Replacement
69
Ribbon Drive Shaft
69
Ribbon Drive Lines
69
Ribbon Feed Rolls
71
Service Check
71
Adjustment
71
Removal and Replacement
71
Ribbon Drive Gears
71
Ribbon Box and Cover
71
Ribbon Changing
72
Power and Electronics
74
Power Supply
74
Removal and Replacement
74
Ripple Level Check
74
Power Transformer
75
Fans
77
Fan B1 Removal and Replacement
77
Fan B2 Removal and Replacement
77
TB2 and Line Filter
77
TB2 Removal and Replacement
77
Line Filter Removal and Replacement
77
Power Adapter Board C1 and Capacitor Assembly
79
Capacitor Service Check
79
Removal and Replacement
79
AC Capacitor (C12) and Capacitor C3
80
C12 Removal and Replacement
80
C3 Removal and Replacement
80
Power Supply Board A1 and Cable
81
Removal and Replacement
81
Transistor (Q1)
82
Service Check
82
Removal and Replacement
82
Planar Board B1
84
Removal and Replacement
84
Printer Wiring Diagram
85
Diagnostic Aids
87
Power on Diagnostic
87
Offline Tests
91
Print Test (PRT04)
91
Carrier Motor (PRT05)
92
Forms Motor (PRT06)
92
Alignment (PRT07)
92
Print Character Set (PRT08)
93
Print Receive Buffers (PRT09)
94
Left Margin Recognition (PRT10)
94
Printer Characteristics Display (PRT11)
94
Data Storage (PRT12)
95
Address Switches (PRT13)
95
Set Transparent Mode (PRT14)
95
Print Wiresltab (PRT15)
96
Online Tests
97
Online Tests Overview
98
Matrix Printer Verification Test (Online Exerciser)
99
Matrix Printer Verification Test Printout
103
Error Codes and Descriptions
106
Lights
107
Print Quality and Registration Problems
111
Print Quality Problem Examples
111
Registration Problem Examples
112
Probe, Probing Information, and Interposer Check
113
Probe Setup and Accessories
113
Probe Power
113
Probe Test
113
Probe Light Conditions
113
Probing EC1, EC2, and C1A 1
113
Continuity Check for Interposers
114
Removing Wire from Plugs P2, P3, P4, and P5
114
Preventive Maintenance
116
Theory
122
Introduction
122
Printer Operation Overview and Data Flow
123
System Configuration
126
Cable Adapter
127
Frame Concept
127
Transmission Sequences
128
Commands
129
Poll Response Frames
130
Read Status Response Frame
131
Printer SCS Formatting Control Characters
132
Set Graphic Error Action Summary
133
Set Horizontal Format Summary
133
Set Vertical Format Summary
134
Interface
134
Poll for Status
134
Write Data
134
Data Transfer
135
Microprocessing Unit
136
Read/Write Storage
136
Internal Processing Queues
136
Control Panel and CE Lights
138
Sense Latches
138
Print Emitter Control and Print Timings
139
Power and Signal Distribution
141
Power on and Power off Timings
141
Functional Parts
144
Motors
144
Print Head
146
Carrier
148
Print Emiiter and Print Emitter Pickup
155
Ribbon Drive
157
Forms Feed
158
Forms Tractor Unit
162
Features
164
Cable Thru
164
Audible Alarm
165
SECTION 1. Standalone Checkout
167
Cable Thru Feature
172
Section 2. Connecting to the System
173
Problem Check List
176
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