Troubleshooting

Print quality problems

To solve many print quality problems, replace supply or maintenance items that have reached the end of intended life. Use the following table for solutions.

Symptom

Cause

Solution

 

 

 

White lines

Either the toner cartridge or the fuser

Replace the toner cartridge or the

 

is defective.

fuser*, as needed.

ABCDE

 

 

ABCDE

 

 

ABCDE

 

 

Streaked horizontal lines

If the lines are parallel to lines that are

Replace the toner cartridge or the

 

supposed to be there, see “Ghost

fuser*, as needed.

 

Images”

 

The toner cartridge or the fuser may be defective, empty, or worn.

Streaked vertical lines

The toner is smeared before fusing

If paper is stiff, try feeding from the

 

 

 

 

 

to the paper.

 

priority feeder.

 

 

 

 

The toner cartridge is defective.

Replace the toner cartridge.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Print irregularities

• The paper has absorbed moisture

• Load paper from a fresh package.

 

due to high humidity.

• Avoid textured paper with rough

 

• The paper being used does not

finishes.

ABCDE

meet printer specifications.

• Make sure the printer driver paper

• The fuser is worn or defective.

type setting matches the type of

ABCDE

 

paper being used.

 

• Replace the fuser*.

 

 

ABCDE

 

 

*To replace the fuser, call a service technician.

This setting can be changed using the Local Printer Setup Utility (Windows), or through Printer Settings (Macintosh). See Software and Documentation CD for additional information.

Print quality problems

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Lexmark 120 Print quality problems, White lines, Streaked horizontal lines, Streaked vertical lines, Print irregularities