Basic Sequence Of Operations (Image Formation) - Canon GP605 Service Manual

B.

Basic Sequence of Operations (image formation)

Copying, 1 Original, 2 Prints
The start timing varies as follows according to the environmental
conditions detected at time when the control panel power switch is turned
on:
1. If low humidity, not started.
2. If normal temperature/high humidity, as soon as the control panel
power switch is turned on.
Main power
switch ON
Main motor(M1)
Drum motor(M0)
Potential sensor
Pre-exposure
lamp
Primary charging
bias (DC)
Grid bias
Developing
clutch (CL4)
Developing
bias (AC)
Developing
bias (DC)
Dust-collecting
roller bias (DC)
Pre-transfer
charging bias
(AC + DC)
Transfer guide
bias (DC)
Transfer
charging bias
(DC)
Separation
charging bias
(AC + DC)
Executed according to the setting in service mode
(COPIER>OPTION>BODY>DRUM-IDL).
COPYRIGHT © 1999 CANON INC.
Each voltage is applied in
sequence to stabilize the
potential of the drum.
Control panel
power
switch ON
WMUP
SLEEP
Idle rotation
sequence
Figure 6-102 At Power-On
CANON GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 6 IMAGE FORMATION SYSTEM
195˚C
WMUPR
Potential stabilization
sequence
Potential
control
Charge-up sequence is executed here even if
idle rotation sequence is not executed.
At 200˚C, WMUPR ends.
Copy Start
key ON
200˚C
STBY
INTR
6-3