Action Yes No
Step 4
Try a different toner cartridge.
Did this fix the problem?
The problem is solved. Go to step 5.
Step 5
Check the connections between the cartridge gearbox and the controller
board.
Is the cable properly connected to the cartridge gearbox and to the
controller board?
Go to step 7. Go to step 6.
Step 6
Reconnect the cable to the cartridge gearbox and to the controller board.
Did this fix the problem?
The problem is solved. Go to step 7.
Step 7
Replace the cartridge gearbox. See “Cartridge gearbox removal” on
page 160.
Did this fix the problem?
The problem is solved. Contact the next level
of support.
USB print service check
Action Yes No
Step 1
Enter Diagnostic mode and perform a print test to make sure the printer
prints correctly. Verify that the indicator light is on, then print the Menu
Settings Page, navigate to:
Reports > Menu Settings Page
Are the internal pages printing?
Go to step 2. Go to step 7.
Step 2
Verify if the user's applications are setup correctly.
Are they setup correctly?
Go to step 4. Go to step 3.
Step 3
Try a different application to run a print job.
Did the output print?
This is not a printer
issue.
Go to step 4.
Step 4
Check the print driver.
Is the correct driver being used and properly setup?
Go to step 6. Go to step 5.
4514-420, -430
Diagnostic information
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