Specifications

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)
4-13
Figure 4-107
Main
transformer
T101
T201
+5V
Photo
sensitive
drum
Developing
cylinder
Static eliminator
Static
eliminator
bias generation
circuit
Developing
DC bias
detection
circuit
+
DC bias control signal
BIAS_PWM
DC bias monitor signal
BIAS_S
AC bias oscillation signal
ACBIAS
Microprocessor (Q900)
Microprocessor (Q101)
Composite power supply PCB
Serial communication
AE sensor
PCB
Control
panel
DC controller PCB
Density
correction
dial (VR107)
J103
-4
J203
-6
-3 -7
DV_DC_ON
DV_AC_ON
AE signal
Copy density
setting signal
Copy density correction signal
High-voltage
transformer
for developing/
static eliminator