Specifications
Chapter 6: FRU Replacement and Fault Isolation Procedures
6-87
6.4.1 Light prints Continued
4. HVPS DB
Use Diagnostic Tool Test DG93 to check if the HVPS is supplying –250VDC
to the Magnet Roll.
Is the output voltage correct?
Yes No
Go to Step 5. Go to Section 6.3.20
HVPS DB Failure.
5. BTR ASSEMBLY
Inspect the BTR Assembly for contamination.
Is the BTR free of contamination?
Yes No
Go to Step 6. Replace the BTR Assembly.
6. TRANSFER
Run a print.
Switch OFF Main Power in the middle of the print cycle.
Open the Front Transport Assembly and remove the Toner Cartridge.
Inspect the toner image on the drum.
Was the image on the drum transferred completely to the paper?
Yes No
Go to Step 7. Go to Section 6.3.21
HVPS TR Failure.
7. Toner CARTRIDGE
Install a new Toner Cartridge.
Is the image still light?
Yes No
Return to Initial Analysis. Problem Solved.