3-178 Troubleshooting Analysis Guide (TAGs)
5
Replace the fuser unit.
• Run test prints.
Has the problem been resolved?
No: Reinstall the original fuser unit and continue.
Yes: Turn to TAG 002: Check & Problem Resolution.
6
Replace the cleaner unit.
• Run test prints.
Has the problem been resolved?
No: Reinstall the original cleaner unit and continue.
Yes: Turn to TAG 002: Check & Problem Resolution.
7
Check the following for damage:
• Vacuum transport unit
• Vacuum transport assembly ozone filter
• Fuser unit drive gear on the fuser unit and fuser unit cavity
• Fuser drive belt
• Main drive assembly
• Cleaner unit drive belt
• Cleaner drive idler assembly
• Cleaner drive assembly
Are they in good working order?
No: Repair or replace the parts as needed, then turn to TAG 002: Check & Problem Resolu-
tion.
Yes: Continue.
8
Open the printer’s top cover and install an interlock by-pass tool.
• Turn the printer on.
• Wait until the motor turns on, then proceed.
• Verify the vacuum transport fan is running by placing a sheet of paper over the holes in the
transport unit.
Does the vacuum fan hold the paper?
No: Go to #10 in this TAG.
Yes: Continue.
9
Inspect the vacuum transport belts and gear for damage or binding.
Is the vacuum transport unit in good working order?
No: Repair or replace the vacuum transport unit, then turn to TAG 002: Check & Problem
Resolution.
Yes: Go to #12 in this TAG.
