Controller System; Main Controller Pcb - Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest

Overview
In this chapter, measures of adjustment when replacing parts in servicing operation are
mentioned. Parts to be replaced are categorized into 5 blocks based on their related
technology as shown below.

Controller System

Main Controller PCB 1

Main Controller PCB 2
DC Controller PCB
HDD
TPM PCB
Flash PCB
Riser PCB
Laser Exposure System Laser Scanner Unit
Image Formation System
Primary Charging Wire
Grid Plate
Primary Charging Assembly
2
Pre-Primary Transfer Charging Wire
Pre-Primary Transfer Charging Assembly
Drum Unit
Developing Assembly
Potential Sensor
ITB Cleaning Blade Unit
ITB
Primary Transfer Roller
Patch Sensor Unit
Waste Toner Container
Waste Toner Full Sensor
Fixing System
Fixing belt Unit
Pressure belt Unit
Fixing assembly
When replacing parts
Controller System
■ Main Controller PCB 1
Procedure of parts Refer to Chapter 4, "Removing the Main Controller PCB 1."
replacement
2-2
Procedure of Service part:
adjustment • Setting unit: Main Controller PCB 1 + Controller Box Frame + Cooling Fan
• Parts number differs on a model basis (speed basis).
p. 2-2
p. 2-3
p. 2-4
p. 2-4
p. 2-6
p. 2-6
p. 2-6
p. 2-6
p. 2-6
p. 2-6
p. 2-6
In order to secure the accuracy of connector connection when slotting in, this
p. 2-8
service part is provided with the PCB being installed to the frame.
p. 2-8
p. 2-8
1) Transferring the parts from old PCB to new PCB
• DDR2-SDRAM (2 pc.)
p. 2-8
• Flash PCB
p. 2-9
• TPM PCB
p. 5-11
p. 2-12
p. 2-12
p. 2-12
p. 2-12
p. 2-12
p. 2-12
p. 2-12
p. 2-13
T-2-1
Cooling Fan
Controller Box
Frame
Main Controller PCB 1
T-2-2