B. Identifying the Size of Paper in the MultifeederWhen the user adjusts the slide guide of the multifeeder, the output of the variableresistor (SVR1) operating in conjunction with the slide guide is sent to the DC controllerPCB, enabling the detection of the width of the copy paper.The data on the width of the copy paper is used to determine how to control the lensand the blanking exposure mechanisms. The length of paper when the multifeeder isselected is identified in reference to the time during which the pre-registration paper sen-sor (PS23) remains on.You must enter the paper with basic value whenever you have replaced the variableresistor. (See Chapter 11 “Registering the Paper Width Basic Value.”)Figure 5-402DC controller PCBVariable resistor(SVR1)Slide guide(rear)Slide guide (front)Multifeeder trayMultifeeder paper width detection signal(MFPW)J115-B4CHAPTER 5 PICK-UP/FEEDING SYSTEM5-21COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
