Canon NP6512 - Page 97

CHAPTER 4 IMAGE FORMATION SYSTEM
COPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
4-5
Figure 4-103
Main
transformer
T101
PR_DC_ON J103 -5
J203
-5
PDC_PWM DC bias control signal P_C_S DC bias current detection signal PDC_S DC voltage monitor signal
Photosensitive
drum
Primary
charging
roller
Microprocessor (Q900)
Microprocessor (Q101)
DC controller PCB
Composite power supply PCB
Serial communication
Voltage
separation
circuit