Controlling The Fixing Roller Drive; I. Operations - Canon GP605 Service Manual

This chapter provides descriptions on the copier's fixing operations, functions of
each operation, relationships between electrical and mechanical systems, and
timing at which each associated part is turned on.
I. OPERATIONS ............................ 8-1
A. Outline .................................... 8-1
B. Basic Sequence of Operations
(fixing system) ........................ 8-4
II. FIXING DRIVE SYSTEM ............ 8-5
A. Outline .................................... 8-5
B. Controlling the Fixing Roller Drive
Mechanism............................. 8-6
C. Controlling the Cleaning Belt
Drive Mechanism ................... 8-8
D. Controlling the Fixing Inlet Guide
Drive Mechanism ................... 8-9
E. Controlling the Thermistor
Reciprocating Mechanism ... 8-10
F. Controlling the Upper Separation
Claw Reciprocating Mechanism
............................................. 8-11
III. CONTROLLING THE FIXING
TEMPERATURE ....................... 8-12
COPYRIGHT © 1999 CANON INC.
CHAPTER 8
FIXING SYSTEM
CANON GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
A. Outline .................................. 8-12
B. Down Sequence Control ...... 8-13
C. Controlling Temperature by Mode
8-14
D. Error Detection ..................... 8-18
IV. CONTROLLING THE FIXING
ROLLER BIAS .......................... 8-24
A. Outline .................................. 8-24
V. DISASSEMBLY/ASSEMBLY .... 8-25
A. Fixing Assembly ................... 8-26
B. Fixing Roller Cleaning Assembly
............................................. 8-29
C. Fixing Heater and Control Parts
............................................. 8-32
D. Fixing Roller Assembly ........ 8-37
E. Separation Claw Assembly .. 8-42
F. Delivery Assembly ............... 8-43
G. Paper Sensors ..................... 8-46