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COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 7
EXTERNALS/AUXILIARY MECHANISMS
This chapter shows the machine's external parts, and explains the principles used for
the machine's various control mechanisms in view of the functions of electrical and
mechanical units and in relation to their timing of operation. It also shows how these units
may be disassembled/assembled and adjusted.
I. FANS ............................................7-1
II. POWER SUPPLY SYSTEM .........7-3
A. Outline of the Power Supply
System ..................................7-3
B. Power Supply Circuit .............7-4
C. Detecting an Error on
the Composite Power Supply
PCB .......................................7-6
D. Protecting the Power Supply
Circuit ....................................7-6
III. DISASSEMBLY/ASSEMBLY ........7-7
A. External Covers.....................7-8
B. Control Panel...................... 7-15
C. Copyboard Glass ............... 7-16
D. Main Motor/Main Drive
Assembly............................ 7-17
E. Electrical System ............... 7-21