Dc Controller; Overview - Canon Color imageCLASS MF9170c Service Manual

10.1 DC Controller

10.1.1 Overview

imageCLASS MF9170c / imageCLASS MF9150c / imageCLASS MF8450c
The CPU in the DC controller PCB controls the operational sequence of the machine.
1) When the power switch of the machine is turned ON, DC power is supplied from the low-voltage power PCB to the DC controller PCB.
2) The CPU in the DC controller PCB starts to control the printer operation.
3) The DC controller receives a print command and image data from the main controller.
4) When the machine is placed in standby, the CPU sends signals to drive each load, such as laser diode, motors, and solenoids, etc.
Manual feed paper
sensor
Cassette paper sensor
ADF paper sensor
Pre-registration sensor
Registration sensor
Fixing delivery sensor
Paper loop sensor
Paper displacement
sensor
ADF paper trailing edge
sensor
Reader HP sensor
Color displacement
/density sensors
Developing
disengagement sensors
Developing
disengagement solenoids
manual pickup solenoid
Cassette pickup solenoid
ADF pickup solenoid
ETB disengagement
solenoid
Environment sensor
Front cover sensor
Fixing pressure release
sensor
Drum HP sensors
Toner level detection
assembly
New cartridge sensor
Low-voltage power PCB
Low-voltage
power circuit
AC input
Fixing
control
circuit
Fixing unit
DC controller PCB
SL
SL
CPU
SL
(IC1001)
SL
SL
+3.3V
+5V
+24V
IC1002
Reset IC
IC1007
EEPROM
Reverse driver PCB
IC801
DUPLEX
CPU
IC802
IC803
Driver PCB
IC401
Laser scanner units
Scanner motors
ASIC
BD circuit
(IC1010)
Laser driver
ETB unit
Transfer rollers
Attraction roller
High-voltage power PCB
Toner cartridges
Primary charging rollers
Developing cylinders
Photosensitive drums
Memory tags
Memory controller PCB
Main unit fan
Main controller PCB
F-10-1
Reverse sensor
Delivery paper full-level sensor
Delivery sensor
Duplexing solenoid
SL
FAN Duplex fan
Reverse motor
M
Duplexing feed motor
M
Drum motors
M
Fixing motor
M
ETB motor
M
Pickup motor
M
ADF
Chapter 10
0020-2652
10-1