Oki C9800 Series User Manual

Light Print in Only One Color
Only one color; yellow, magenta, cyan, or black, is too light on the printed image.
Initial Actions to Perform
 Perform Initial Actions from Print Quality Troubleshooting Practices
 Verify that color calibration has been performed prior to using this troubleshooting procedure.
 Check that the Toner Cartridge pull strip is completely removed from the affected color.
Areas of the Printer that Apply to Light Print in Only One Color
 Imaging Unit
 LED Head
 Engine Control Board
 Toner Supply
Troubleshooting Steps Resolution
1. Verify all packaging material has been removed form the toner cartridges Yes – Go to Step 2
No - Remove packing material
2. Print the 100% Solid Fill test print. Can the problem be isolated to one primary
color?
Yes – Go to Step 3
No - "Light Print in Only One
Color"
3. Remove the Toner Cartridge and check for toner starvation in the Imaging Unit.
Is there evidence of toner starvation
Yes – Replace the Toner Cartridge
No - Go to Step 4
4. Remove the Imaging Units and the Transfer Unit and check for toner
contamination on the high voltage contacts. Are the contacts contaminated?
Yes – Clean the contacts
No - Go to Step 5
5. Are the LED Heads dirty? Clean the heads with a clean, lint-free cloth. Did this
correct the problem?
Yes – Complete
No - Go to Step 6
6. Swap the LED Head of the problem color with any other LED Head.
Print a Solid Fill Test Pattern. Has the problem moved with the LED Head?
Yes – Replace the LED Head
No - Go to Step 7
7. Are the wiring harnesses on the LED Heads undamaged, properly routed and
seated?
Yes – Reseat the wiring Harnesses
No - Replace in the following
order: Transfer Unit / LVPS /
Engine Control PCB

Oki C9800 Series Specifications

General

Brand	Oki
Model	C9800 Series
Category	Printer
Language	English