Lexmark X543 - Page 98

2-54 Service Manual
7525-xxx
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4
1. Remove the image unit and waste toner
bottle.
2. Replace the right cover and close the front
door.
3. Enter the Diagnostics Menu (turn the
printer off, press and hold and , turn
the printer on, and release the buttons
when installed memory and processor
speed displays), and run the appropriate
cartridge drive motor test for the missing
color:
4. Select MISC TESTS in the Diag Menu, and
press Select ().
5. Select Motor Detect.
Remove Cartridge. press Select appears.
Note: Do not press Select yet.
6. Remove all toner cartridges and the
imaging unit.
7. Close the front cover.
If you press Select before closing the front
cover, a message appears: Close Cover.
press Select.
8. press Select ().
Motor Detection In Progress… appears.
The motor detection process takes about
10 seconds, and stops automatically.
Detect Complete. Rebooting… appears,
and the printer performs a POR (Power On
Reset).
Did the motor run?
Go to step 5. Replace the Main drive gear
assembly. See “Main drive
gear assembly with motor
removal” on page 4-58.
5
Remove the developer unit. See “Developer
unit removal” on page 4-47. Check the
developer cartridge contacts from the HVPS to
the IU.
Are all the toner cartridge contacts clean on
both the Pin and IU?
Go to step 6. Clean the developer
cartridge contacts. See
“Developer unit removal”
on page 4-47.
6
Are all the spring-loaded Pin in the HVPS free
to move in and out with an equal amount of
spring force?
Go to step 7. Replace the HVPS. See
“High-voltage power
supply (HVPS) assembly
removal” on page 4-34.
7
Turn the printer off, and remove the rear
shield. See “Rear shield removal” on
page 4-7. Check the continuity between the
spring-loaded Pin and the JSC1 connector on
the controller board.
Are all conductors continuous?
Go to step 8. Replace the cable.
8
Replace the printhead. See “Printhead
removal” on page 4-61.
Did this fix the problem?
Problem resolved. Replace the controller
board. See “Controller
board removal” on
page 4-18.
Step Questions / actions Yes No