Black Prints - Oki B6100 Technical Manual

Step
HVPS CR
Use a sheet of paper to cover the laser beam window.
1
Generate a test print.
Is the problem still present?
ROS ASSY FAILURE
Use a sheet of paper to cover HALF of the laser beam window.
2
Generate a test print.
Is the problem still present only on the uncovered half?
CRU FAILURE
3
Install a new CRU.
Is the problem solved?
OKI B6100 Laser Printer - Base Engine Technical Manual
Version 1.0
PROBLEM
The entire print is black.
INITIAL ANALYSIS
1. Inspect the following components. Are they compatible with your printer
version, correctly installed, not damaged, deformed, or contaminated?
• CRU
• Spring Clip
• PWBA HKB26 MCU
2. Inspect the printer paper path. Is it clear of foreign matter such as staples,
paper clips, and paper scrap?
Actions and Questions
Primary FIPs:Image Quality Problems

5.3 Black Prints

• PWBA HVPS
• ROS Assy
• Harness Assy HVPS (J26-J261)
Yes
Go to step 2
Go to step 3
Problem
solved
No
Go to 6.19
PWBA HVPS
Failure
Go to 6.3
ROS Assy
Failure
Return to Ini-
tial Analysis
5-9