3-34 Phaser 6300/6350 Color Laser Printer Service Manual
Replace Imaging Unit or  
Imaging Unit Is Near End of Life
The Imaging Unit Life counter indicates the Imaging Unit is near or has reached its 
end of life.
Applicable Status Code:
Code 196: Replace Imaging Unit 
 
Warning: Imaging Unit Near End of Life
Initial Actions:
■ Print the Supplies Usage page and verify life remaining and date Imaging 
Unit was installed.
■ Cycle printer power.
■ If the problem persists, follow the procedure below
Note
The “Imaging Unit is Near End of Life” is a warning. “Replace Imaging Unit” is 
a hard stop.
5
Check all pins on the FAN/PHD/MOT 
Harness PL10.1.9 for continuity.
1. Disconnect P/J484 and P/J48.
2. Check continuity between J48 <=> P484.
Go to Step 6 Replace the 
FAN/PHD/MOT 
Harness
6
Replace the Imaging Unit.
Does the error persist?
Replace the Engine 
Control Board 
(
page 8-104).
Complete
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ Imaging Unit, PL6.1.1
■ CRUM Connector, PL7.1.4
■ PHD2 Harness, PL7.1.7
■ FAN/PHD/MOT Harness, PL10.1.9
■ Print Engine Map 2 - P/J Locator (page 10-6)
■ Print Engine Laser Unit Wiring (page 10-23)
Troubleshooting Procedure Table (Continued)
Step Actions and Questions Yes No