User Guide

Figure 4-103 Sensor Cross Section
Figure 4-104
Chopper
Electrode
Piezoelectric
oscillator
Potential sensor
LED1
Sensor drive circuit
Drum surface potential detection circuit
High-voltage
generation/
adjustment circuit
1/3
transformer
circuit
Level
shift
circuit
Micro-
processor
DC controller PCB
Potential measurement PCB
Pre-
amplifier
circuit
Sensor cover
Electrode
Chopper
2.5 mm
(approx.)
-
-
+
-
-
COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 4 IMAGE FORMATION SYSTEM
4-5
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