Laser printer faults

Manufacturer? Model?

Maybe this site may be helpful to you.

Bob

Trying a new toner cartridge is a good idea. However, I have seen this issue before and it was the fuser assembly.

Does the printer have a high page count (like 200,000) ?

Also:

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Repetitive Defects

Possible Cause Recommended Action

1. Toner cartridge is damaged. If the

defect repeats at any of the following

intervals and in the direction of paper

movement, it is associated with a

component inside the toner cartridge. See

figure 7-10 on page 408.

Inspect the drum for scratches or damage.

Replace the toner cartridge.

1. Transfer Roller has toner on it. If defects

occur on the back of the page at intervals

of 61mm (2 3/8 inches), the Transfer

Roller may be dirty. This problem

sometimes corrects itself after a few

pages.

Clean the Transfer Roller using a dry,

lint-free cloth. DO NOT touch the Transfer

Roller with your fingers. If the problem

persists, replace the Transfer Roller

Assembly

1. Rollers are dirty. Any dirty roller in the

paper path may result in a repetitive print

defect.

Examine and clean the rollers in the paper

path..

1. Fusing Assembly is dirty or defective. Clean the Fusing Assembly using alcohol.

If the problem persists, replace the Fusing

Assembly.

1. Gears are worn, causing slippage or

jumping.

Inspect the gears driving the toner

cartridge and the Fuser. Replace the Main

Drive Assembly if necessary.

1. Paper does not meet specifications.

The surface of the paper may be too

coarse, causing repeated marks.

Try a different media or paper lot.

Then it is likely the fuser assembly. I know that HP recommends replacing theirs every 200,000 pages.

Post the exact distance between the original image and the first ghost.

This will help identify whether it is the image drum or the fuser that is at fault.

Aidan Grey