Question about Canon PIXMA MP780 All-In-One InkJet Printer

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Toshiba dp 2570 "dirty copies"

I have a Toshiba dp2570 copier and we are getting one horizontal line in the middle of the page. We also have what looks like a shadow on our copied pages, it is all over except in a few lines at the edge of the paper. I have cleaned the glass, and we put in a new drum. Any ideas

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  • Anonymous Mar 18, 2014

    copier ir 2570

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Have you cleaned the insides of the printer? If you have then check the fuser assembly . Thats the part that heats up. It probably has ink on it and is transferring it to the paper. If you cannot clean the fuser roller you will have to replace it or get someone who can.

Posted on Aug 29, 2007

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1 Answer

Horizontal line on printed page


When you use the flatbed the copy is perfect because the ccd sensor is under the glass cover and obviously is free form dust/ dirt.
On the other hand if you use the feeder the ccd sensor is located in between the roller assembly (not sure exactly for this model).
This means that the page is scanned by the ccd in the feeder, any dirt on the ccd will appear as a black line. I assume that you are feeding papers from the side and not from the top that is why you get a horizontal line.

A quick test to see if the ccd sensor is dirty is to feed the paper from the top side to the feeder. If you get a vertical line it is a proof that your ccd sensor needs to be cleaned.
The worst case is that the sensor in the feeder assembly has a tiny spot that is damaged and it is causing the black line.
So , first try the test, then open the feeder assembly, locate the ccd and clean it. Hope that this helps.

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1 Answer

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There are lots of things that can cause this. Inspect the fuser assembly & verify that there isn't any teflon missing from the upper roller & that the lower roller is clean. The spots can also be caused by a build up of waste toner in the cleaning assembly, causing excess toner to be dropped on the copies as they pass under it. The cleaning assembly would need to be removed & cleaned to correct this. The spots are not always in the same place - but are they the same pattern? A worn drum assembly can cause spots that are usually a repeating pattern but located in different parts of multiple copies. Dirty corona wires can also cause random spots & rewiring the coronas would solve that.

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