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dlee
doctor
Joined: 07 Nov 2006
Posts: 1459
Location: E. Syracuse NY
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 Posted: Wed Jun 23, 2010 1:21 pm Post subject: Very uneven cuts once paper roll is low |
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| I have a KIP8000 that once the paper gets down to about a 1/4" thick on the roll, it'll start cutting off the prints at totally different lengths. I notice this more on longer prints, regardless of 30" or 36" wide. One sheet could be almost up to an inch difference from the next one. I know that there is a setting for rolls when it gets down to half or less, but this is printing crazy everytime it gets down low. On a full roll, the printer prints perfectly fine. When it gets low, I find that all prints will be totally off. |
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lead guitarist
intern
Joined: 03 Apr 2007
Posts: 123
Location: Texas
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| Posted: Thu Jul 30, 2015 11:28 am Post subject: |
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Did you ever find a cure for this? I am having the same thing happen on a 9000. Roll gets low and the cuts get longer and uneven...
Replaced all feed clutches and reg clutch. When roll is new all is fine??
John B.
_________________
If it's too LOUD get some plugs!! |
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gjames
resident
Joined: 02 Apr 2008
Posts: 174
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| Posted: Thu Jul 30, 2015 11:27 pm Post subject: |
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This is expected on the 8000/9000. Only in the 9900 can you adjust for cut based on what roll is left in the drawer.
All you can do is set a happy medium and let the customer know.
_________________
"The bitterness of poor quality remains long after the sweetness of low price is forgotten." - Benjamin Franklin and John Ruskin |
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lead guitarist
intern
Joined: 03 Apr 2007
Posts: 123
Location: Texas
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| Posted: Fri Jul 31, 2015 10:40 am Post subject: |
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I would agree with you however the 9000 right next to it does not have this problem. The 9000 in question also had not had this problem until just recently. I can't tell our owner that, that's the way it is. production would say it did not do that before and I do agree with them.
All of the drive gears look great, new chain, all new feed clutches and all new reg clutch. One more thing is the brake which I am installing today..
Perplexed,
John B.
_________________
If it's too LOUD get some plugs!! |
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gjames
resident
Joined: 02 Apr 2008
Posts: 174
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| Posted: Fri Jul 31, 2015 10:50 am Post subject: |
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If all the normal stuff has been done like:
Clutch adjustments, Chain and sprockets replaced, etc.
Then you may need to focus on the cutter.
Could be that the cutter isn't set properly for Home Position. Also apparently the end of the cutter should move a little. There was someone on the forum talking about this. They said if the cutter was bolted down tight it would cause issues. The bolt should when tight allow the end of the cutter to be able to move up a little. Honestly I don't know about that for sure.
Did this issue happen all of a sudden? or was it noticed after some changes/repairs?
_________________
"The bitterness of poor quality remains long after the sweetness of low price is forgotten." - Benjamin Franklin and John Ruskin |
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dlee
doctor
Joined: 07 Nov 2006
Posts: 1459
Location: E. Syracuse NY
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| Posted: Sun Aug 02, 2015 3:10 pm Post subject: |
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Wow...old post...lol. We changed our way of doing paperwork to digital a couple years ago. I don't even have the paper trail to this and I apologize for not posting what I did. But after seeing what you've done so far, yes I would try the brake. I will post if I can think of something else that you haven't already tried.
FYI: I have 2- 8000s and 2- 9000s sitting next to each other and each sheet is dead on straight and both the 8000s and 9000s does have the TE Margin Compensation caused by the variation of roll thickness. (Pages 8-73 and 8-74 of their respective service manuals.) |
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