Transport Motor Failure; Pc Cartridge Unit Motor Failure - Lexmark W850n Service Manual

4024-110

911.00 Transport motor failure

Step
1 Check the dual drive motor assembly for operation.
Open the rear motor cover, and check it.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Transport motor.
Does the motor rotate normally?
2 Check the dual drive motor assembly for installation
Remove the rear motor cover, and check it.
Is the dual drive motor assembly installed securely?
3 Check the rotation of the rotor in the dual drive motor
assembly.
Open the rear motor cover, and check it.
Can the rotor be rotated by hand without excessive load?
4 Check the dual drive motor assembly connection.
Is the dual drive motor assembly properly connected?
5 Perform a print test.
Does the error continue?

912.00 PC cartridge unit motor failure

Step
1 Check the PC cartridge for installation.
Is the PC cartridge installed securely?
2 Check the dual drive motor assembly for operation.
Open the rear motor cover, and check it.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Drum unit motor.
Does the motor rotate normally.
3 Check the dual drive motor assembly for installation.
Open the rear motor cover, and check it.
Is the dual drive motor assembly installed securely?
4 Check the rotation of the rotor in the dual drive motor
assembly.
Open the rear motor cover, and check it.
Can the rotor be rotated by hand without excessive load?
2-46
Printer Service Manual
Check
Check
Yes
Go to step 3. Go to step 2.
Go to step 3. Install the dual
drive motor
assembly
securely.
Go to step 4. Install the dual
drive motor
assembly
properly.
Replace the dual Replace the
drive motor connection.
assembly.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
Yes
Go to step 2. Install the PC
cartridge securely.
Go to step 4 Go to step 3.
Go to step 4. Install the dual
drive motor
assembly
securely.
Go to step 5. Install the dual
drive motor
assembly
securely.
No
No