Canon NP6251 Service Manual page 349

EXTERNALS/AUXILIARY MECHANISMS
This chapter shows the copier's external parts, and explains the principles used for the copier'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. CONTROL PANEL .............................7-1
A. Outline ...........................................7-1
B. Operation.......................................7-1
II. FANS ..................................................7-6
III. POWER SUPPLY ...............................7-9
A. Outline of Power Supply................7-9
B. Power Supply Circuit .....................7-10
C. Date/Time Display Power Supply..7-12
IV. DISASSEMBLY AND ASSEMBLY......7-13
A. External Covers .............................7-14
B. Control Panel.................................7-22
C. Door Switch Assembly ..................7-28
D. Fan Unit .........................................7-30
E. Removing the Counter Assembly..7-33
F. Main Motor Assembly....................7-34
G. Fixing/Waste Toner Drive
Assembly .......................................7-35
COPYRIGHT © 1997 CANON INC.
CHAPTER 7
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
H. Main Drive Assembly (drum/
developing) ....................................7-38
I. Vertical Path Drive Assembly ........7-40
J. Pick-Up Drive Assembly................7-42
K. Duplexing Drive (1) Assembly .......7-44
L. Lifter Drive Assembly ....................7-46
M. Cassette Pick-Up Drive
Assembly .......................................7-48
N. Attaching the Drive Belt.................7-50
O. DC Controller PCB ........................7-51
P. DC Power Supply Assembly .........7-52
Q. High-Voltage Transformer
Assembly .......................................7-53
R. Power Supply Inlet Assembly........7-54