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PRINTOUT PROBLEMS
4.6.4 HORIZONTAL BLACK BANDS
Description: Dark or blurry horizontal stripes show periodically on the printout
Cause
1.
Bad contacts on the toner cartridge high
voltage terminals.
2.
The following rollers in the toner cartridge
are damaged
• Charge roller
• Supply roller
• Development roller
• Transfer roller
4.6.5 BLACK/WHITE SPOTS
Description: Dark, white or blurry spots show periodically on the printout.
Cause
1.
Developer is covered with unwanted
matter or paper dust.
2.
The OPC drum surface is damaged.
3.
Transfer roller has reached the end of its
life.
4.6.6 LIGHT IMAGE
Description: Printed image to light (no ghost)
Cause
1.
Toner save mode is enabled.
2.
Developer roller is contaminated or the
toner cartridge is almost empty.
3.
Ambient temperature is below 10 C.
4.
Bad contact because of dirty terminals on
the toner cartridge set.
5.
Abnormal output from the HVPS
1.
Clean all high voltage terminals on the
toner cartridge and set frame. Remove
toner and dust particles.
2.
Clean the gear on the OPC. Replace the
toner cartridge if the problem stays.
1.
Print several OPC cleaning mode prints.
Then run the self-test 2-3 times.
2.
Examine the OPC drum surface and
remove any unwanted particles with a soft
lint free cloth. Replace the toner cartridge
if the problem stays.
3.
Replace the toner cartridge if it is past the
60 K PM interval.
1.
Turn the toner save more off.
2.
Replace the toner cartridge.
3.
Turn the machine off. Wait 30 minutes
and turn the machine on again. Then try
to print.
4.
Clean dirt from the toner cartridge and
cartridge set contacts.
5.
Replace the HVPS.
4-12
20 July 2005
Solution
Solution
Solution
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