SYMPTOM

PROBLEM

SOLUTION

 

 

 

Fuzzy print.

LED array is dirty.

Clean LED array.

 

 

 

Distorted print.

Paper path, lamp

Generate cleaning page.

 

assembly, or fusing

Contact service.

 

unit problem.

 

 

 

 

 

Faded print.

Toner cartridge is

Install toner cartridge correctly.

 

not correctly

 

 

installed.

Replace toner cartridge.

 

Toner low.

 

 

 

 

 

Smeared or

Dirty rollers; toner

Replace image drum and toner.

blotched print.

dropped inside

Contact service.

 

printer or image

 

 

 

drum problem.

 

 

 

 

Printed page is

Is toner low?

Replace toner cartridge.

light/blurred.

 

 

Is paper meant for

Use recommended paper.

 

 

laser printers?

 

 

 

 

 

LED array is dirty.

Clean LED array.

 

 

 

Bold characters

Toner is low.

Install new toner cartridge.

and dark lines

 

 

are smeared.

 

 

 

 

 

Print is darker

Darkness setting is

Change darkness setting.

than usual.

too high.

 

 

 

 

Pages curl

Printing on wrong

Turn paper over in tray. (Note

excessively.

side of paper.

arrow on paper package). Install

 

 

paper print side down in tray.

 

 

 

 

Moisture in paper.

Avoid storing paper in areas of

 

Improper storage.

excessive temperature and

 

 

humidity. Store paper in protective

 

 

wrapping.

 

 

 

 

High humidity.

Recommended operating humidity:

 

 

20-80%

 

 

 

B4400/B4600 User’s Guide – Troubleshooting > 92