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(3) Restart of initial alignment to completion of initial alignment
The feed motor starts to operate in the forward direction to rotate the aligning roller. Transport of the
original starts, and the initial alignment operation is restarted. After the timing sensor turns ON, and
the leading edge of the original is detected, the original is transport for a specified number of pulses,
and the feed motor stops and the initial alignment operation is completed at the point when the
original arrives at the initial alignment standby position. At this time, forward rotation of the feed motor
causes the weight plate to lower. At the point that initial alignment operation is completed, the status
of the width sensor is checked and stored to memory. After initial alignment operation is completed,
the transport motor and reversal motor stop at the point when they have been driven by a specified
number of pulses, and exit operation is completed. However, note, that if the original exit operation
was in progress at this time, dummy exit operation is completed at the point when the exit operation
of this original is completed.
(4) Start of original transport to aligning sensor OFF (detection of scan size)
After completion of dummy exit, the feed motor and transport motor start to operate in the forward
direction, and the aligning roller and transport belt rotate to start transport of the original standing by
at the initial alignment position to the exposure position. From the 2nd original onwards, the reversal
motor also starts to rotate in the forward direction at the same time to start exit operation. The number
of pulses from start of transport of the original at the initial alignment position to when the trailing
edge of the original passes the aligning sensor is counted to detect the length of the original. At the
same time, the original size is determined also by the state of the width sensor that was stored to
memory at completion of initial alignment. If the original is a non-standard size, or the original size
differs from that of the previously fed original, the original size data is sent to the copier.
6570/5570 ADF
16 - 12
Mar. 1999 © TOSHIBA TEC
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