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bigal doctor
Joined: 17 Apr 2007 Posts: 352 Location: TEXAS |
Posted: Mon Feb 03, 2020 11:04 am Post subject: Dark Smudge after 20 or so prints |
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Have this 7170 causing dark bands and or smudges that occur after a day or two of running. I have rebuilt Dev unit changed wires etc. looks like maybe drum memory ? 360K on the drum, all other checks out bias etc appears to be fine.
Any suggestions
Drum on order! |
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CHILLIN doctor
Joined: 05 Oct 2006 Posts: 950
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Posted: Mon Feb 03, 2020 11:33 pm Post subject: |
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Have you tried resetting the developer bias? |
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bigal doctor
Joined: 17 Apr 2007 Posts: 352 Location: TEXAS |
Posted: Tue Feb 04, 2020 9:09 am Post subject: Ghosting |
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Yes I reset bias 3 to 1...
Now ghosting on heavy black logos or text 1 revolution of drum..I have rebuilt Developer unit did wires etc and transfer support is on...I'm trying today the cleaning roller position and maybe shutting off density compensation.
If all fails I'm replacing the drum! |
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CHILLIN doctor
Joined: 05 Oct 2006 Posts: 950
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Posted: Tue Feb 04, 2020 9:13 am Post subject: |
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Sounds like the drum |
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