OKI b 4400 Manual De Usuario

B4400/4500/4550/4600  User’s Guide

96

NOTE: If the edge of the jammed paper protrudes (or can be 

seen) from the exit, reinstall the image drum, close the top 

cover and switch the printer on. Remove the jammed paper 

from the exit when the exit roller begins rotating after a few 

seconds after switching on. However, if the jammed paper 

cannot be removed, contact a service representative.

Before consulting a service representative regarding a print 

quality problem, check the table below to see if there is a 

solution, or something you might have overlooked.

  

Blank sheets 
printed.

Image drum 
cartridge not 
properly installed.

Reinstall image drum cartridge.

Empty or missing 
toner cartridge.

Install new toner cartridge.

Entire page prints 
faintly.

Empty toner 
cartridge. Pages get 
fainter when toner 
is used up.

Install new toner cartridge.

LED array is dirty.

Clean LED array.

Page has grey 
background.

Static electricity, 
generally from dry 
environments, 
causes toner to 
stick to background.

Change paper to a smoother laser 
bond or use a humidifier.

Page prints all 
black.

Hardware problem. Contact service.

Page has 
repetitive marks.

Damaged image 
drum cartridge 
causes repetitive 
marks every 1.6 
inches (4.06 cm) 
due to surface nicks 
and scratches.

Generate a cleaning page, 
repetitive marks may be 
temporary.

Oblong area of 
faint print 
appears on each 
page.

Drop out caused by 
using paper 
exposed to high 
humidity.

Change paper stocks, check paper 
storage environment or use a 
dehumidifier; check toner level.