Action Yes No
Step 6
a Remove the main drive gearbox.
b Check the gears for wear or damage.
c Check the main drive motor for rotation.
Are the gears free of wear or damage and does the main drive motor
rotate?
Go to step 7. Replace the main drive
gearbox. See “Main
drive gearbox
removal” on page
167.
Step 7
Replace the controller board.
Does the error remain?
Problem is solved. Contact the next level
of support.
Printer/cartridge mismatch service check
Action Yes No
Step 1
a Make sure the toner cartridge smart chip contact cable JARW1 is
properly connected to the controller board.
b Make sure the toner cartridge smart chip contact is free of debris.
c Check the toner cartridge smart chip contact for damaged pins.
Is it free of damage?
Go to step 2. Replace the toner
cartridge smart chip
contact. See “Toner
cartridge smart chip
contact removal” on
page 188.
Step 2
Check if the firmware level matches the serial number.
Do they match?
Replace the controller
board. See “Controller
board removals” on
page 184.
Reflash the firmware.
4514-630, -635, -636
Diagnostic information
86