Controller System; Removing The Main Controller Board; Actions Before Replacement - Canon LBP6670dn Series Service Manual

3
Disassembly/Assembly > Controller System > Removing the Main Controller Board > Removing the Main Controller Board

Controller System

Removing the Main Controller Board

■ Actions before Replacement

Actions before Replacement:
• Write down the serial number of the host machine.(Check it from SERVIVE MODE
>FUNCTION GR.>SN MAIN.) (LBP6670 only)
• Back up the setting value (refer to the following backup method).
* When backup is not possible, the setting data cannot be migrated.
Backup Method
Backup Method
USB Setting Value （USER MODE, SERVICE MODE, etc）
Expansion ROM for servicing/Sublog Setting Value （USER MODE, SERVICE MODE, etc）
Board Management Data （Page Counter, Serial No.）
Backup procedure using USB memory
1) Connect the USB memory to the host machine.
2) SERVIVE MODE > FUNCTION GR. > ECONF > EXPORT > ALL > Yes
Backup procedure using Expansion ROM for servicing/Sublog Board
Refer to [Backup/Restoration by Expansion ROM for servicing and Sublog Board 5-53].
3 Disassembly/Assembly > Controller System > Removing the Main Controller Board > Removing the Main Controller Board
Items which can be backed up Refer
■ Removing the Main Controller Board
Preparations
1) Remove Left Cover.(Refer to page 3-9)
Procedure (LBP6680)
1) Remove Controller Cover [1].
• 2 Flat cable [2]
• 2 Connector [3]
• 4 Screw [4]
x6
x4
T-3-9
[4]
2) Remove Main Controller Board [1].
• 2 Flat Cables [2]
• 5 Connectors [3]
• 4 Screws [4]
• 2 Screws [5]
x2
[4]
[5] [1] [4] [2]
[5]
[3]
[2]
[2]
[4] [3]
x4
x6
[1]
[4] [2]
[3]
3-12
[3]
[4]
[3]
[4]
3-12