Lexmark X850E - Printhead Assembly Failure; Toner Add Motor Assembly Failure

Diagnostic information 2-155
7500-XXX
913.00 Printhead assembly failure
914.00 Toner add motor assembly failure
3 Check the dual drive motor assembly for proper installation.
Open the rear motor cover and check it.
Is the dual drive motor assembly installed properly?
Go to step 4. Install the dual
drive motor
assembly properly.
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?
Go to step 5. Install the dual
drive motor
assembly properly.
5 Check the dual drive motor assembly connection.
Is the dual drive motor assembly properly connected?
Replace the dual
drive motor
assembly.
Go to “Dual drive
motor assembly
removal” on
page 4-113.
Replace the
connection.
6 Perform a print test.
Does the error continue?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-117.
Problem solved.
Step Check Yes No
1 Check the printhead assembly for proper installation.
Is the printhead assembly installed properly?
Go to step 2. Install the
printhead
assembly properly.
2 Check the printhead assembly connection.
Is the printhead assembly properly connected?
Replace the
printhead.
Replace the
connection.
3 Perform a print test.
Does the error continue?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-117.
Problem solved.
Step Check Yes No
1 Check the toner cartridge for proper installation.
Remove the toner cartridge and reinstall it.
Does it operate properly?
Problem solved. Go to step 2.
Step Check Yes No