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vaclav borc
01-10-2009, 09:51 PM
Too light prints.

I cand find result with this problem - too light prints.

I did this procedures:

cleaning laser+mirrors
inspected all high voltage contacts
new toner
drum reached only 50 percent
cleaned corona wire, grid, repaired all contacts

please any ideas?

xcopytech
01-10-2009, 10:03 PM
did you tried with new drum?
maybe someone reset drum counter earlier.

E Winter
01-10-2009, 11:37 PM
Wow, you've put a lot of energy in this little, cheap device^^

Are the drum and toner OEM?

You can try to reset the toner bias - you'll need fiddle something at the toner cartiridge backwards so it does hit a switch inside the printer. You should also check if there is a possibilty to enable a toner save mode within the printer driver.

imaginGuru
01-10-2009, 11:40 PM
Have you checked if this machine has the toner save mode activated?
Happened to me once, all I needed to do was to clear that mode out.
:)

E Winter
01-10-2009, 11:45 PM
great minds think alike^^

blackcat4866
01-11-2009, 12:48 AM
One last thought.

I had a series of OEM cartridges (new-in the box) that were missing the small white buttons & springs that press the toner cartridge up to the drum. Cartridge #1 was missing the left button & spring. Cartridge #2 was missing the right button & spring.

This one was a strange one to diagnose. New cartridge #1 is light at the left. Change cartridge to #2, now light at the right. :confused:

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