Question about Canon DR-2050C Path-Through Scanner

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Canon DR-2050C Scanner gets verticle line down image

I have a Canon DR-2050C Scanner and it often produced a verticle line on the image. A person on this website says to "clean the glass;" however there is no glass. This is a scanner that feeds the paper through rollers. How do I clean it?

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I have the same issue with mine and there are 2 image sensors on this scanner. 1 in the back that you will see when you open the front that has a meteal shield covering the top half, and one in the fold out front that faces the inside. These are the "glass" sections everyone is refering to. Problem is, they are plexiglass, not glass and mine has a tiny scratch in the lens that is causing the line. This could be your problem. find the lens and use a LED flashlight to inspect your lens for scratches. If its scratched like mine, the entire module has to be replaced to fix it. The canon part number is MH7-7038 and they range from $125-$160 if you replace it yourself. The one in the front is easy to do, but the back one is a little tricky. Hope this helps. E. Alexander, Field Tech, Cummins-Allison

Posted on May 18, 2010

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:-) Please try and locate the scan module. All Scanners have glass to prevent dust entering the scan module. If dust 'sticks' to the glass and when scanned, it creates a 'line' in the output. Even slow desktop scanners are sealed for dust prevention.
S. Mohan

Posted on Oct 27, 2009

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OK you clean the glass, is good.

Now you have to jump in scanner properties and look for "calibration", somewhere in the advanced settings, so, I do not know exactly. The idea is that the calibration must be done with a white A4 sheet will require 2 times the sheet to complete the calibration process.
Good luck!

Posted on Oct 27, 2009

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1 Answer

WE HAVE 8 CANON DR-2050C SCANNERS IN OUR X-RAY DEPARTMENT, ALL OF WHICH HAVE STUBBORN ARTIFACT LINES IN VARIOUS PLACES.... WE TRIED CLEANING THE GLASS SURFACES WITH ALCOHOL WIPES, BUT STILL HAVE THOSE...


It might be that you have dust on the inside of the glass that is causing the problem. It might be possible to replace the scanning elements. You might try some compressed air to see if you can get enough pressure below the glass to dislodge whatever is causing the problem.

Oct 20, 2010 | Canon DR-2050C Path-Through Scanner

1 Answer

Scanning with line in the middle of documents


Please clean the glass with isopropyl alcohol, dont use solvents. It must be dust sticking on to the glass surface.

S. Mohan

Aug 07, 2010 | Canon DR-2050C Path-Through Scanner

1 Answer

Scanner produces streaks


It's possible that the black lines you're experiencing are an internal image adjustment issue with the scanner itself. If the scanner glass is otherwise clean, try going to the Canon DR2050/2080 utilities installed as part of the set up of your scanner and running the Adjustment Tool - it asks you to place the "adjustment paper" in the scanner. The term, "adjustment paper," appears to mean anything which has an image or text on it. Be sure you clean the scanner first before running this utility. It will have you put the "adjustment paper" through twice, and that in turn should remove the black lines in your scans, as long as there is no dust on the scanner glass. Office Depot sells cleaner sheets for laser and inkjet printers which also work on faxes and scanners and which will clean the glass for you.

Jun 29, 2010 | Canon DR-2050C Path-Through Scanner

1 Answer

Vertical line down the scanned image


Clean the glass with Isopropyl Alcohol. No solvents please

Mar 11, 2010 | Canon DR-2050C Path-Through Scanner

2 Answers

Black line on image


It's possible that the black lines you're experiencing are an internal image adjustment issue with the scanner itself. If the scanner glass is otherwise clean, try going to the Canon DR2050/2080 utilities installed as part of the set up of your scanner and running the Adjustment Tool - it asks you to place the "adjustment paper" in the scanner. The term, "adjustment paper," appears to mean anything which has an image or text on it. Be sure you clean the scanner first before running this utility. It will have you put the "adjustment paper" through twice, and that in turn should remove the black lines in your scans, as long as there is no dust on the scanner glass. Office Depot sells cleaner sheets for laser and inkjet printers which also work on faxes and scanners and which will clean the glass for you.

Nov 08, 2009 | Canon DR-2050C Path-Through Scanner

1 Answer

Line appears on all scanned documents. Scaning window & rollers have been cleaned.


Do the lines appear in the same location on all images? Please clean the glass with isopropyl alcohol.IF the lines are crisp and sharp at the edges on all levels of contrast, then it is module problem. If it varies depending upon the contrast chosen and is also with jaggered edges, it is dust stuck on the glass. Dont use solvents.
S. Mohan, Chennai, India

Jun 02, 2009 | Canon Office Equipment & Supplies

1 Answer

Line going down page


Don't know if this is a solution per se but I replaced the glass bar (there is a part # on it) on the inside front of the scanner and still got a line. Then I played around with the back scanner glass and still got a line then I got in there real good and cleaned and when I scanned something it would show no lines until I saved the document then I got two lines. Thought it was my software going haywire but I did not give up, got some canned air and alcohol and cleaned the glass once again and blew out every part I could find and the problem resolved itself. Apparently the smallest piece of lint or dust, smudge or anything foreign on the scanner lenses will cause this line. But I love this scanner and I wasn't willing to give it up or pay $600 for a new one. Only had it a little more than a year. Persistence seems to be the key but check those little scanner bars and be careful, they are tricky to get out.

Sep 25, 2008 | Canon DR-2050C Path-Through Scanner

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