Oki B 4300 User Manual download pdf (Page 78)

TROUBLESHOOTING > 78

Vertical white

streaking or faint

areas on page.

Toner is low and does

not distribute properly,

or the drum is worn out.

Replace toner cartridge. Check drum and

replace the drum, if necessary. Contact

service.

LED array is dirty. Clean LED array.

Vertical black lines. Hardware problem. Contact service.

Fuzzy print. LED array is dirty. Clean LED array.

Distorted print. Paper path, lamp

assembly, or fusing unit

problem.

Generate cleaning page.

Contact service.

Faded print. Toner cartridge is not

correctly installed.

Toner low.

Install toner cartridge correctly.

Replace toner cartridge.

Smeared or blotched

print.

Dirty rollers; toner

dropped inside printer

or image drum problem.

Replace image drum and toner.

Contact service.

Printed page is light/

blurred.

Is toner low? Replace toner cartridge.

Is paper meant for laser

printers?

Use recommended paper.

LED array is dirty. Clean LED array.

Bold characters and

dark lines are

smeared.

Toner is low. Install new toner cartridge.

Print is darker than

usual.

Darkness setting is too

high.

Change darkness setting.

Pages curl

excessively.

Printing on wrong side

of paper.

Turn paper over in tray. (Note arrow on

paper package). Install paper print side

down in tray.

Moisture in paper.

Improper storage.

Avoid storing paper in areas of excessive

temperature and humidity. Store paper in

protective wrapping.

High humidity. Recommended operating humidity: 20-

80%

Symptom Problem Solution

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Oki B 4300 User Manual Page 78

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