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Home of the Kip Doctor!
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KeepItPrinting.com
The "unofficial' and "unauthorized" KIP info site.
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dlee
doctor
Joined: 07 Nov 2006
Posts: 1459
Location: E. Syracuse NY
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 Posted: Tue Nov 22, 2016 12:18 pm Post subject: Very random voids |
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Hey guys. I have a 7170 with only 40K SF on it. For some reason, it has started doing random quarter size or 1" and 2" squiggly voids on prints. No steady void pattern, no repeat of lost image down the print. When I run the 36x60 print, the void randomly happens around 8", 12", 26", 38", 42" or 48" from LE. Some prints have only 1 or 2 while others may have 5 or 6. They are random and can be on left center or right side. Sometimes a couple side by side, 3" or 4" apart.
This customer runs 99% 24x36, so it isn't the "long print voids" with the fuser speed, even though I did adjust speeds to see if it would change anything and it did not.
I replaced the transfer corona and selected Transfer Support, no luck. I don't think it could be the drum. Not sure if it could be the paper as I tried different rolls, no difference.
Am I going to have to replace the drum/transfer seperation unit? |
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mark in vegas
doctor
Joined: 20 Oct 2010
Posts: 1852
Location: Las Vegas, NV
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| Posted: Tue Nov 22, 2016 12:51 pm Post subject: |
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Did you take a look at the fuser NIP? The spring loaded baffle in front of the TS?
_________________
Regards,
Mark
RVN 68-69
It's so nice to be insane
No one asks you to explain |
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dlee
doctor
Joined: 07 Nov 2006
Posts: 1459
Location: E. Syracuse NY
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| Posted: Tue Nov 22, 2016 1:54 pm Post subject: |
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| NIP is good. Baffle is as it should be. I believe the problem lays somewhere in the drum/ T/S assy area. We just unpacked a new 7170K, might just go swap t/s assy, to eliminate that possibility. |
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mark in vegas
doctor
Joined: 20 Oct 2010
Posts: 1852
Location: Las Vegas, NV
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| Posted: Tue Nov 22, 2016 2:24 pm Post subject: |
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Good idea
_________________
Regards,
Mark
RVN 68-69
It's so nice to be insane
No one asks you to explain |
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mark in vegas
doctor
Joined: 20 Oct 2010
Posts: 1852
Location: Las Vegas, NV
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| Posted: Tue Nov 22, 2016 8:58 pm Post subject: |
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Take a roll of your paper over to the customer
_________________
Regards,
Mark
RVN 68-69
It's so nice to be insane
No one asks you to explain |
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caltech
doctor
Joined: 24 Feb 2006
Posts: 262
Location: Northern California
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| Posted: Fri Dec 02, 2016 7:58 pm Post subject: |
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| We had a 7100 doing this with a customer that runs very long prints 10 feet plus. The machine was not level. Lowered the feet and leveled the machine, prints good long prints now. |
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