Question about Canon imageCLASS D761 Copier

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Dents and smears

There is a roller in the copier that leaves dents all the way down the center of the page. how do I get to the roller that might be the problem and adjust it. I think it happens after the ink gets on the paper so that the result is that I have dents and ink blobs running down the center of the page is this a costly repair or can i do it myself

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Posted on Jun 23, 2008

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There is a large streak on my printer page its in the shape of the roller with a dent and I have cleaned the inside roller. How can I fix this?

There are many rollers in the printer usually this defect is caused by the drum, which I believe is part of the toner asm in this unit have you replaced the toner?

Jun 19, 2015 | Oki Electric Industry B431d Printer

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Oce 7051 plain copier has dust or something on one of the rollers - prints have a trail of marks across sheet, repeating every 10 inches from top to bottom of page. Probably need to remove or access...

If the drum has marks on it, you might have to replace it.  Sometimes the fuser rollers can leave marks on them as well.
Check for lines on the drum first.  If they are there, it could need a drum replacement.

Sep 17, 2008 | Office Equipment & Supplies

1 Answer

What is causing white spots on the copy. Always in the same place.

The problem may be with the INTER TRANSFER BELT(ITB UNIT), Sometimes this may happen if a small particle entered inside it stuck on the pressure roller of the ITB and makes dent on the ITB film which is soft and plastic like material with photo sensitive. I have experienced similar problem when the desiccant are spread inside. I have cleaned and gentle rubbed the dent surface of ITB with dry cotton cloth keeping the dent position on the roller. Well i have minimised a lot and gradually the dents are restore to its original. all these are taken much patience and sound knowledge on the materials works upon.

I suggest you can check these things and do if you have experience on dis-assy. or else take the help of the canon support engineer.

Jan 15, 2015 | Canon CLC 1120 Color Copier

1 Answer

Printed pages are dented as if embossed at regular intervals. The dents are consistent as to shape and location. Printing appears in the shapes as required.

This is caused by the fuser unit, most likely it has some hard lumps of toner on one of the rollers. You may be able to clean this off, this video may help, if not then fit a new fuser unit.

Aug 23, 2014 | Brother MFC-9840CDW Laser Printer

1 Answer

I am getting a roller wrinkle down the center of the page

Check the fuser unit lower pressure roller and the vertical transport feed rollers.

Mar 16, 2013 | Konica Minolta Office Equipment & Supplies

1 Answer

I have a HP LJ4250dtn it is leaving black streaks down left and right sides of pages...looks like shadow of what is actually on the this a drum or roller issue?

Most likely a drum cartridge. The fuser unit is good for 225,000 pages as is the transfer roller. The drum is good for 10,000 pages.

Dec 06, 2010 | HP LaserJet 4250dtn Printer

2 Answers


This problem is with the fuser. It needs to be replaced. They tend to burn out right in the center leaving a rolling smudge across the page as the unfused toner left on the roller gets printed on the next roll-over.

Jan 06, 2009 | HP LaserJet 4250n Printer

1 Answer

Small dent in paper

check pc drum or fusing unit roller

Oct 13, 2008 | Minolta 2430DL Color Laser Printer

2 Answers

Paper dents

I believe you have two problems. One the dent you are talking about unless I see it I don't know for sure but I believe this is minor and something you need to live with. The paper goes through a fuser which uses a teflon sleeve over a heater surface and a lower pressure roller made of rubber. It may be that you need a new lower pressure roller they get little cuts in them sometimes. Two the spots are probably from a faulty toner cartridge. It has a leak.

Feb 13, 2008 | Canon imageCLASS D761 Copier

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