Specifications

Chapter 6: FRU Replacement and Fault Isolation Procedures
6-90
6.4.3 Black prints
NOTES
:
1. Without the Diagnostic tool, skip the Diagnostic Tool test (DG) portion of step 1.
2. There is no corresponding control panel message.
3. Try another toner cartridge
PROBLEM
The entire print is black.
INITIAL ANALYSIS
Inspect the following components. Are they compatible with your printer version, cor-
rectly installed, not damaged, deformed, or contaminated?
Toner Cartridge HVPS
MCU PWB Earth Plate Assembly
ROS Assembly Harness Assembly HVPS
Inspect the printer paper path. Is it clear of foreign matter, such as staples, paper clips, and
paper scraps?
1. HVPS CR (DC)
Use Diagnostic Tool Test DG92 to check if the HVPS is supplying –350VDC
to the BCR.
Is the output voltage correct?
Yes No
Go to Step 2. Go to Section 6.3.19 HVPS CR Failure.
2. Toner CARTRIDGE
Install a new Toner Cartridge.
Is the paper still black?
Yes No
Return to Initial Analysis. Problem Solved.