UCHIDA AeroCut Velocity, Operation Manual

Page: 43 / 46

AeroCut Velocity OPERATION MANUAL
43
8 Troubleshooting
1. Papers are not fed well.
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Turn up Upper suction ( Page 30)
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Turn up Side blow ( Page 30)
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Shorten the PAPER FEED WORK TIME. i.e. less than 1.0 ( Page 30)
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Check if the paper guides on the feed table hold sheets too tight.
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Make sure that the paper edges are not curled or waved.
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Make sure that the papers are not heavily electric static charged.
2. The machine feeds double-sheets.
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Turn down Upper suction ( Page 30)
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Turn up Lower suction ( Page 30)
・
Turn up Side blow ( Page 30)
・
Make sure that the papers are not heavily electric static charged.
・
Lengthen the PAPER FEED WORK TIME. i.e. 2.0 ( Page 30)
3. The machine doesn’t detect double-feed properly.
・
The machine detects the density of the first fed sheet and compares the density of
the next sheet to the first one. Therefore, the machine cannot detect double-feed
when it occurs with the first fed sheet.
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Adjust the sensitivity of the double-feed detection sensor. ( Page 30)
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The detection sensor detects double feed by checking the edge of sheets as shown
on the drawing. It is recommended not to print on the sheet edge. ( Page 30)
4. The machine detects double-feed mistakenly.
・
Adjust the sensitivity of the double-feed detection sensor. ( Page 30)
・
The detection sensor detects double feed by checking the edge of sheets as shown
on the drawing. It is recommended not to print on the sheet edge. ( Page 30)
5. Cut skewing
①
Make sure that the stock is put on the feed table correctly. ( Page 12)
②
Check whether the skewings are consistent or inconsistent.
If skewings are consistent :
+ Make the skewing adjust via the skew adjustment dial. ( Page 33)
+ Set the paper guides without play.
Do not set them too tight as the sheet may not be fed well.