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KeepItPrinting.com The "unofficial' and "unauthorized" KIP info site.
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tcrawford doctor
Joined: 05 Oct 2005 Posts: 260 Location: Milwaukee, WI |
Posted: Mon Mar 30, 2015 11:04 am Post subject: [C7800] Process assembly gets stuck. |
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We have 2 c7800's (so far) where one of the process units gets stuck (one is Cyan and the other Magenta). Yes even when the printer is off and the rear door ajar. The only way to get it to release is to tug on the handle while lightly tapping on the drum shaft with a hammer. As a result the counter roller on the RH side (of the dev assy tends to suffer damage and usually break. To me this is an indication of what is holding it from coming out, but I can't see what it is. The whole dev assy has been replaced at one time so it can't be that.
Ideas? _________________ Terry Crawford
BPI Milwaukee
16 years in large format repair, mainly KIP, Image ProGraf and Designjet, PageWide, 20+ years in the industry. |
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p51d007 medical school grad
Joined: 01 Jun 2011 Posts: 98 Location: Springfield Missouri |
Posted: Mon Apr 06, 2015 4:20 pm Post subject: |
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Are the areas at the rear of the drum where it intersects with the drum shaft lubricated?
Another spot, we have this issue on some of the small format machines, that have slide out CMYK units. On some, if I have a tech that thinks he is superman, likes to shove the imaging unit in with enough force to slam it through the machine. The front edge of the drum shafts will be tiny little burrs that will cause the image units to stick. After using a piece of scotch brite to clean it, I'll apply a drop or two of moly 100 to the ends of the shafts, to keep them from sticking. Sometimes, the inside raceways of the bearings will get bent, requiring replacement. Might be worth a look. _________________ 39 years in the small format business, large format since 2009. Toshiba D.A.T.E. trainer. |
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tcrawford doctor
Joined: 05 Oct 2005 Posts: 260 Location: Milwaukee, WI |
Posted: Mon Apr 06, 2015 4:27 pm Post subject: |
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p51d007 wrote: |
Are the areas at the rear of the drum where it intersects with the drum shaft lubricated?
Another spot, we have this issue on some of the small format machines, that have slide out CMYK units. On some, if I have a tech that thinks he is superman, likes to shove the imaging unit in with enough force to slam it through the machine. The front edge of the drum shafts will be tiny little burrs that will cause the image units to stick. After using a piece of scotch brite to clean it, I'll apply a drop or two of moly 100 to the ends of the shafts, to keep them from sticking. Sometimes, the inside raceways of the bearings will get bent, requiring replacement. Might be worth a look. |
Yes they are, very well in fact. _________________ Terry Crawford
BPI Milwaukee
16 years in large format repair, mainly KIP, Image ProGraf and Designjet, PageWide, 20+ years in the industry. |
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