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actrepro
intern
Joined: 19 Jun 2006
Posts: 139
Location: Des Moines, Iowa
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 Posted: Thu Jun 28, 2007 5:56 pm Post subject: density problem |
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had to vacuum some toner out of devo unit
added toner, but am not able to get the density back
light copy in the middle section of print
sides are great
print density is set on dark
any suggestions
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Kevin
dreaming of medical school
Joined: 26 Jun 2007
Posts: 7
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| Posted: Thu Jun 28, 2007 6:54 pm Post subject: |
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Did you adjust the regulation roller pressure at all?
if you did, the regulation roller pressure is to much, back the pressure off about 1 mm.
What sounds like is happening, is the pressure is to much, cause the the reg. roller bending in the middle.
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Kevin |
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mrcmyk
medical school freshman
Joined: 12 Aug 2006
Posts: 23
Location: Not Hell, But I can see it from here
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| Posted: Thu Jun 28, 2007 9:57 pm Post subject: |
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how's the LED print head?
_________________
Thanks
"It's not a BUG, It's an undocumented special feature"
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Neil Johnston
doctor
Joined: 23 Dec 2005
Posts: 402
Location: Seattle, WA
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| Posted: Thu Jun 28, 2007 10:42 pm Post subject: |
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I've had a few 3000s go light in the middle due to LED grounding issues. Pop the top and check that the change units grounding tab is making contact with the LED head. Also check the wires going to the LED. Clip all the zip ties off. I had a machine where I clipped off the zip ties leading to the LEDs power and data. Fixed my light center issue.
_________________
Neil Johnston
Sales / Support
www.TheWideFormatCompany.com
www.PlotTrackerPro.com - Kip Accounting Software |
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cjwilt
doctor
Joined: 24 Jan 2007
Posts: 1041
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| Posted: Fri Jun 29, 2007 9:45 am Post subject: |
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| I have noticed that when a 3000 dev unit is starting to fail it gets light in the center not on the sides like the other HDP developers. You might be do for a dev rebuild. I am getting about 100K sq ft before I see signs of the unit getting light in the center, ????? |
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peter_kelowna
medical school grad
Joined: 28 Nov 2006
Posts: 78
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| Posted: Mon Jul 09, 2007 6:44 pm Post subject: I've had this same problem |
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On the KIP-7000 and 5000. All of my 3000's are still too low on footage yet. One thing to definately check is the actual photoreceptor drum. The drum gets a slight coating of hardened paper dust in the center 10 inches and will reflect as such on your prints.
If you can see the drum is a bit flatter in colour and not as shiney in the center then this will almost certainly be the problem.
I usualy just pull the drum and clean it with the blue shop towels and some 99% alcohol. Seems to work great for me.[/quote] |
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actrepro
intern
Joined: 19 Jun 2006
Posts: 139
Location: Des Moines, Iowa
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| Posted: Mon Aug 06, 2007 5:01 pm Post subject: |
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where do you get 99% alcohol
thanks |
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actrepro
intern
Joined: 19 Jun 2006
Posts: 139
Location: Des Moines, Iowa
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| Posted: Mon Aug 06, 2007 5:55 pm Post subject: |
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is this isopropyl or denatured alcohol
thanks |
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peter_kelowna
medical school grad
Joined: 28 Nov 2006
Posts: 78
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| Posted: Thu Aug 09, 2007 11:49 am Post subject: 99% alcohol |
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| I pick up this product at any drug store. Isopropyl or Isopropanol. It does not have to be 99%. I also us the %70 variety sometimes. In some towns or cities they keep the 99% stuff behind the counter. |
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Cobra
medical school senior
Joined: 11 May 2006
Posts: 46
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| Posted: Mon Dec 03, 2007 5:33 pm Post subject: |
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| Any Synthetic car wax will work great for cleaning drums. I've been using it on all my drums for several years now with great results. |
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