User's Manual

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 4 IMAGE FORMATION SYSTEM
4-16 P
5 Controlling the Transfer Guide Bias
5.1 Transfer Guide Bias
Part 2>Chapter 5>7.2 “Transfer Guide Type”
The transfer guide bias is used to prevent adhesion of toner to the transfer guide, and is a
negative component (-600 VDC), which is of the same polarity as the toner.
The transfer guide bias is continuously applied as long as printing is under way.
F04-501-01
DC controller PCB
Transfer
guide output
J135
J301
-A3
-A1
J136
-A10
-A12
24 VDC input
from main
power supply
Composite power supply PCB
PW-CPU
Transformer
drive signal
J131-3
Photosensitive
drum
High-voltage
main transformer
(T504)
Transfer
guide
+24V
Serial communication
Print/standby mode signal