COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)7-20CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS2. Points to Note When Handling the Composite Power Supply PCB• Some capacitors used on the PCB may retain charges even when the copier remainsoff. For this reason, you must take care never to short the terminals of the capacitorwhenever you have detached the PCB.• Enter the settings (Nos. 315 through 318) recorded on the label attached to thecomposite power supply (service part) in service mode. (See p. 10-103)