Canon PC400 Service Manual - Page 36

CHAPTER 2 BASIC OPERATION Period Description Remarks STBY (Standby) Between when the copier is switched ON and when the Copy Start key is pressed. Between when LSTR is over and when the Copy Start key is pressed. Waits for a press on the Copy Start key. INTR (Initial Rotation) For about 6 sec after STBY is over. Executes pick-up. Removes residual charge from the photosensitive drum and stabilizes the drum sensitivity in preparation for copying operation. The copyboard moves from the home position to the start position. CBFW (Copyboard Forward) COPY CBRV (Copyboard Reverse) While the copyboard is moving forward (about 10 sec). The scanning lamp illuminates the document, and the reflected optical image is projected to the photosensitive drum through the lens array. The copy paper is moved to the transfer assembly. While the copyboard is moving in reverse (about 4 sec). Returns the copyboard to the start position in preparation for the next copy; if last copy, the copyboard is returned to the home position. In continuous copying, the pickup signal is generated for pick-up operation. LSTR (Last Rotation) After CBRV for the last copy is over until 3 sec after the copy paper has moved past the delivery sensor. Discharges the last copy. Table 2-101C 2-4 COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)