Canon GP335 Service Manual page 537

Switches, Counters, Heaters, Varistors, and Fuses
Part
1 Composite power supply PCB
2 DC controller PCB
3 Image processor PCB
4 Accessories power supply
5 Pick-up unit PCB
6 Low-voltage power supply PCB
7 Noise filter
8 Control panel key PCB
9 Control panel CPU PCB
10 Inverter PCB
11 Downloading PCB
12 Function key PCB
13 Upper cassette size detection PCB
14 Lower cassette size detection PCB
15 Multifeeder paper width detection
PCB
16 Laser driver PCB
17 Laser scanner driver PCB
18 Analog processor PCB
19 BD PCB
20 Pre-exposure lamp PCB
21 Environment sensor PCB
22 Intensity sensor PCB
23 Battery PCB (accessory)
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Notation
CHAPTER 14 TROUBLESHOOTING
Name
HVT, lamp regulator, DC power
supply
DC load control (DC driver)
Image processing (main controller)
DADF, side paper deck
Pick-up assembly sensor
DC power supply
AC power supply noise removal
LCD (back light) power supply
Upper cassette size detection
Lower cassette size detection
Multifeeder paper width detection
Laser dive
Laser scanner motor drive
CCD drive, analog image processing
Laser beam detection
Photosensitive drum residual charge
removal
Machine internal humidity detection
Scanning lamp intensity detection
Fax image memory retention
14-119