Print Quality Problems - Oki B4200 User Manual

7.
The printer will warm up and commence printing when ready.
The page lost through the jam will normally be reprinted.
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.

PRINT QUALITY PROBLEMS

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.
Symptom
Blank sheets
printed.
Entire page prints
faintly.
Page has grey
background.
Page prints all black. Hardware problem.
Page has repetitive
marks.
Oblong area of faint
print appears on
each page.
NOTE
Problem
Image drum cartridge
not properly installed.
Empty or missing toner
cartridge.
Empty toner cartridge.
Pages get fainter when
toner is used up.
LED array is dirty.
Static electricity,
generally from dry
environments, causes
toner to stick to
background.
Damaged image drum
cartridge causes
repetitive marks every
1.6 inches (4.06 cm)
due to surface nicks and
scratches.
Drop out caused by
using paper exposed to
high humidity.
TROUBLESHOOTING > 77
Solution
Reinstall image drum cartridge.
Install new toner cartridge.
Install new toner cartridge.
Clean LED array.
Change paper to a smoother laser bond
or use a humidifier.
Contact service.
Generate a cleaning page, repetitive
marks may be temporary.
Change paper stocks, check paper
storage environment or use a
dehumidifier; check toner level.