Specifications

Chapter 6: FRU Replacement and Fault Isolation Procedures
6-93
6.4.6 Horizontal band deletions
NOTES
:
1. Without the Diagnostic tool, skip the Diagnostic Tool test (DG) portion of steps 2 and 3.
2. There is no corresponding control panel message for this item.
3. This FIP may also fix BTR or drive gears.
4. Try another toner cartridge
PROBLEM
There are areas of the image that are extremely light or missing entirely. These missing areas
form wide bands that run horizontally across the page and parallel with the direction of paper
travel.
INITIAL ANALYSIS
Inspect the following components. Are they compatible with your printer version,
correctly installed, not damaged, deformed, or contaminated?
Toner Cartridge BTR Assembly
MCU PWB Fuser Assembly
ROS Assembly Transportation Chute Assembly
HVPS Earth Plate Assembly
Inspect the printer paper path. Is it clear of foreign matter, such as staples, paper clips, and
paper scraps?
1. PAPER CONDITIONS
Is there moisture in the paper?
Yes No
Load new paper. Go to Step 2.
2. 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 3. Go to Section 6.3.20 HVPS DB Failure.
3. DRIVE ASSEMBLY
Use Diagnostic Tool Test DG90 to check the Drive Assembly.
Are the Drive Assembly transmission gears turning the Toner Cartridge gear?
Yes No
Go to Step 4 Replace the Drive Assembly.
4. BTR ASSEMBLY
Inspect the BTR Assembly for contamination.
Is the BTR free of contamination?
Yes No
Go to Step 5. Replace the BTR Assembly.