Diagnostic information 2-153
7500-432, -632, and -832
913.00 Printhead assembly failure
914.00 Toner add motor assembly failure
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 4-119.
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.
2 Check the gear rotation for the toner cartridge guide
assembly.
Remove the toner guide assembly.
Does the gear, located at the lower part of the toner
cartridge guide assembly, rotate smoothly?
Go to step 3. Replace the toner
cartridge guide
assembly.
3 Check the toner cartridge guide assembly for pipe clogging.
Is the pipe, located at the lower part of the toner cartridge
guide assembly, clogged?
Go to step 4. Clean the pipe.
4 Check the toner add motor assembly for operation.
Warning: Only perform this test in segments of three
seconds or less, or toner spill will occur.
Remove the top cover assembly. Go to “Top cover
assembly removal” on page 4-5.
Override the switch (printer front door interlock)
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Printer Motor Test.
4. Touch Toner add motor.
Observe the toner add motor for rotation.
Note: When performing this test, the drum unit motor will
also operate.
Does the motor rotate normally?
Go to step 6. Go to step 5.