Canon LBP253 SM, Manual

Page: 91 / 167

Controller System
Removing the Main Controller
Board
■ Actions before Replacement
CAUTION:
Actions before Replacement
• Back up user data (settings, registered data, etc.)
and service mode data for setting and registration
after PCB replacement. Take notes if data is
unable to back up.
● Actions before Replacement
Perform backup of user data (such as Settings/Registration
data) and service mode data in preparation to set/register
them again after replacing the PCB. Write down the data
which cannot be backed up.
1. Write down the data of Settings/Registration > System
Settings > Device Information> Location.
2. Export user data using remote UI.
3. Insert the USB memory into the host machine, and
execute COPIER > FUNCTION > SYSTEM > EXPORT
to write the setting values of the service mode to the USB
memory.
4. Write down the each factory adjustment value written on
the service label. (Enter them after replacement.)
CAUTION:
Reference: The data recorded on the Main Controller
can be backed up and restored by the following
procedure.
Stor-
age
desti-
na-
tion
Backup tar-
get
Backup procedure
USB
flash
drive Settings of
[Settings/
Registration] Connect the USB flash drive . (The USB
port on the rear side of the host machine
cannot be used.)
Home key > System Management Set-
tings > Import/Export of Settings > Ex-
port
Remove the USB flash drive.
[Status Monitor] key > Device Status >
Remove Memory Media
USB
flash
drive Service
mode setting
values Connect the USB flash drive . (The USB
port on the rear side of the host machine
cannot be used.)
COPIER > FUNCTION > SYSTEM >
EXPORT
[Status Monitor] key > Device Status >
Remove Memory Media
Stor-
age
desti-
na-
tion
Backup tar-
get
Backup procedure
PC Settings of
[Settings/
Registration]
Service
mode setting
values COPIER > OPTION > USER > SMD-
EXPT > 1
Remote UI: Settings/Registration > Im-
port/Export > Export > Start Exporting
Save the backup file to any location.
■ Removing the Main Controller
Board
● Preparations
1. Remove Left Cover. “Removing the Left Cover” on
page 80
2. Remove Wireless LAN PCB. “Removing the Wireless
LAN PCB” on page 95
● Procedure
1. Remove the Support Plate [1] of the Wireless LAN
PCB.
• 1 Screw [2]
• 2 Hooks [3]
[2]
[3]
[3]
[1]
1x
2. Remove Main Controller Board Connector [1].
[1]
[1]
[1]
[1]
[1]
8x
4. Disassembly/Assembly
84