COPYRIGHT © 2002 CANON INC. CANON CLC1100/1130/1150/1160/1180 REV.1 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-3CHAPTER 3 EXPOSURE SYSTEM2. Scanner Home Position Sensor and OperationTable 3-102The scanner home position sensor turns on only at the following timing:· At the end of WMUP after power-on.· At the end of pre-scanning.· At the end of all scanning for the specified number of copies.The sensor is not designed to turn on during continuous copying. If it should turn on because ofan erratic operation, the copier will immediately stop scanning.Figure 3-104 shows the movement of the scanner during copying operation. (The start positionis the point reached by the scanner by moving approximately 61 mm from the home position.)Figure 3-104Original scanner homeposition sensor (PS1; SCHP)Scanner motorForward In reverse OperationSwitches to forward movement.Moves 2 mm in reverse, and stops.(The point at which it stops is thehome position.)Pre-scanningMove to the start positionScanning during copyingoperationLast scanningHome position2mmPS114mmStart positionLeading edge ofan originalOriginal
