Hello folks,
Today i was facing a strange problem.
Client was complaining about quality issue.
Little (short) horizontal black lines appeared by printing randomly all over the page.
I've this also by printing in colour.
I changed the DV black, drum in black, transfer belt, 2nd transfer roller, fusing. Vacuumed inside the machine, cleaned contacts from Developer, HVU transfer belt contacts etc... Laser glass has been cleaned. (but i didn't unmount the laser unit to clean it...)
F/W= version 13
Sim 464 ac callibration has been done. Sim 412...
It could be the cleaning motor from black?
If it should be the laser i guess i'll have white lines in text?
Any comment should be appreciated...
Thanks on advance
Today i was facing a strange problem.
Client was complaining about quality issue.
Little (short) horizontal black lines appeared by printing randomly all over the page.
I've this also by printing in colour.
I changed the DV black, drum in black, transfer belt, 2nd transfer roller, fusing. Vacuumed inside the machine, cleaned contacts from Developer, HVU transfer belt contacts etc... Laser glass has been cleaned. (but i didn't unmount the laser unit to clean it...)
F/W= version 13
Sim 464 ac callibration has been done. Sim 412...
It could be the cleaning motor from black?
If it should be the laser i guess i'll have white lines in text?

Any comment should be appreciated...
Thanks on advance
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