When Replacing The Main Controller Pcb (Lbp3580/6780X); Removing The All-Night Power Supply Pcb (Lbp3580/6780X); Preparation; Procedure - Canon imageCLASS LBP6780dn Service Manual

3
Disassembly/Assembly > Controller System > Removing the All-night Power Supply PCB (LBP3580/6780x) > Procedure
When Replacing the Main Controller PCB
(LBP3580/6780x)
The Flash ROM of the Main Controller PCB contains the following data.
• Firmware: Boot module for startup, main program Bootable
• Setting values: User mode setting values, service mode setting values
• Management data: Page counter data, device serial number
• MEAP applications
In a case of replacement with a new Main Controller, it is necessary to migrate the setting
values from the old Main Controller.
The data can be exported by executing service mode > function.gr > ALL, and the order of
priority for exportation is shown below.
USB memory device (when a USB memory device is connected) > SD Card (when a SD
Card is connected) > RAM (when none of them is connected)
MEAP applications cannot be migrated and need to be installed again.
The data migration method and the target data at the time of replacement of the Main
Controller PCB are shown below.
Setting value
(User mode setting
values, service mode
setting values)
Expansion ROM for Yes
servicing
+
Sublog Board
USB memory device Yes
SD card Yes
3 Disassembly/Assembly > Controller System > Removing the All-night Power Supply PCB (LBP3580/6780x) > Procedure
Management data MEAP applications
(page counter, device
serial number)
Yes No
No No
No No
T-3-25
Removing the All-night Power Supply PCB
(LBP3580/6780x)

■ Preparation

1) Remove the Right Cover.(Refer to page 3-17)

■ Procedure

1) Remove the Main Controller Cover [1].
• 7 Screws (black) [2]
• 1 W Sems Screw (silver) [3]
• 1 Hook [4]
x8
[2]
3-32
[3] [4]
[2]
[1]
[2]
F-3-60
3-32