Canon DADF-M1 Service Manual

Also see for DADF-M1: Service manual General Timing Chart/General Circuit Diagram Portable manual Service manual Service bulletin

Contents

Canon DADF-M1 Service Manual Manual pdf 49 page image

Chapter 22-272.5 Document Reversing2.5.1 Basic Sequence of Operation 0002-9742a. Picking Up the Original for Reading the 1st SideThe platen roller rotates using the drive from the feed motor (M2) for reading the 1st side of the original. The machine keeps count of pulses from the feed motorto monitor the movement of the original; and, before the trailing edge of the original leaves the platen upstream roller, the machine drives the lock motor(M4) fora specific number of pulses to move the platen upstream roller away (i.e., to prevent the impact otherwise occurring when the trailing edge of the original leavesthe roller). Moreover, before the trailing edge of the original leaves the platen downstream roller, the machine turns on the delivery reversal motor (M3) to dischargethe original; likewise, it also turns on the release solenoid to lock the delivery reversing roller in place. The machine accelerates the delivery reversal motor whenthe trailing edge of the original leaves the platen downstream roller.F-2-31b. Reversing/Feeding the Original 1The delivery reversal motor (M3) stops when the trailing edge of the original moves past the delivery reversal sensor (PI9); immediately thereafter, the deliveryreversal motor (M3) starts to rotate in reverse so that the original will arch against the No. 2 registration roller. At the same time, the locking solenoid goes off tomove the delivery reversing roller away.F-2-32M2M4PI9Read roller 2Platen RollerRead roller 1Read roll 1PI9SL2M3Delivery reversalupper rollerDelivery reversal low rollerPI9SL2M3Delivery reversal lower rollerDelivery reversalupper rollerPI9SL2M3Delivery reversal lower rollerNo. 2 registration rollerReversing roller