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Dark streaks/lines (3) down center of copies

Only happens when document is copied through the ''feeder''. When laying flat on glass there are no streaks.

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  • manageroll Mar 11, 2009

    I cleaaned the rollers but didn't see any glass...but I'll check it out again - thanks a million for the advice!



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I don't know what model you're using, which would be very helpful, however, if you lift the Document feeder section where the originals are fed, there should be a narrow piece of glass, which is only used when the Document feeder is used. This must be completely clean -1 spec creates a solid line.

Posted on Mar 11, 2009

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When using the auto feed, copies come out with black streaks down center of page


If you only get streaks when using the automatic document feeder, then in most cases it is dirt on the scanner glass. You do not state model but if you can also scan flat objects, trying copying a piece of paper that way. If that copy comes out fine, then you definitely have dirty glasss, if that copy has streaks you either have dirt on the scanner itself or a faulty scanner unit.

May 08, 2015 | Office Equipment & Supplies

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My HP Pro 7780 has recently started making copies (through the feeder) with 2 large blank streaks down the middle of the page (lengthwise). I am worried that this is also happening when I send a fax as...


Does this happen when you print, or only when you copy? If you print out a configuration or user settings page, or print a page from the computer, is it also missing two vertical lines of print or is it only when you are copying?

If it happens when you print, you may need a cleaning, or you may need to replace the toner or drum cartridge. If it's an inkjet machine, there's a possibility there is some ink or grease on the encoder strip (a small belt-like plastic strip that goes through the print-head carriage).

If it only happens when you copy, test both the flatbed and the document feeder. If it happens on both then you may have a bad scanner. If it only happens when using the document feeder, you likely have some whiteout (or something) on the glass. When you make a copy in the flatbed, the scanner moves across your document. When you make a copy using the document feeder, the document moves across the scanner. In this case, if there is anything on the scanner glass (like whiteout) your copies will be missing a vertical line of print data (it could be white if there is whiteout on the glass, or it could be dark if something dark is on the scanner glass).

Usually you can lift the flatbed cover and look at the glass to see if anything is on it (usually at the left side of the scanner). Clean the glass, first with alcohol to remove the obstruction, and then with a little windex to remove anything the alcohol may have left behind.

Sep 23, 2010 | HP Officejet Pro L7780 All-In-One InkJet...

1 Answer

We were getting streaky lines, it also ask us to replace the durm which we did. Streaks have not gone away


Are you getting these lines when copying? Or Printing?
Or both. Are these dark lines or blank lines?
If it is just when copying, try making a copy by laying an original on the glass rather than using the feeder. If this copy comes out clean then you need to clean the ADF (Automatic Document Feeder) scanner glass. Just open the section where the documents are fed into and you will see a strip of glass that runs from front to back, about an inch wide. Clean this with a soft cloth and a bit of glass cleaner.
If this works then great. If not then reply back with more details and I will help you further.

Jun 09, 2010 | Ricoh Aficio 1515 Black and White Copier

1 Answer

When i make copies a line appears on the right side of the copy. This problem does not occur when i scan to copy only when the document runs through the feeder


Clean the document feeder scanner glass. This is the much smaller strip of glass that is to the right of the large main glass. This strip of glass is used ONLY when using the feeder. So if you are getting a dark line when using the automatic feeder but not when laying a document on the glass then just clean the strip glass. 100% sure this is your problem. You may need to clean it several times as I have seen stuff get stuck to this glass.
Good Luck and Thank You for using Fixya.

Jun 02, 2010 | Xerox WorkCentre XD120f Copier

1 Answer

We have a black line down the center of all copies...


If the problem only happens on copies or sent faxes then no it is not your drum. There is something on your scan glass. My guess is you are getting the line on your copies when you run the original through the document feeder. If you get lines through the document feeder but not on copies made off the glass then it is a dirty scan glass. There is a thin glass strip where the document feeder feeds the original. Usually something like white out that did not dry smears off an original and ends up on this thin strip of glass. Scratch it off with your finger nail and use some glass cleaner to resolve the problem. The scan glass is about 1/2 an inch to an inch wide and will be on the same side of the machine that the copier feeds the originals in on

May 20, 2010 | Office Equipment & Supplies

1 Answer

New toner but still have dark streaks


IF YOU ARE ONLY GETTING THE LINES WHEN YOU PUT THE DOCUMENTS INTO THE TOP FEEDER AND NOT FROM PRINTNG TO COPIER OR IF YOU PUT A COPY ON THE GLASS UNDER THE DOC FEEDER AND NO LINES APEAR CHECK THE SMALL GLASS WINDOW UNDER THE DOC FEEDER THERE MAY BE SOME TIPEX OR INK RUBBED OFF AND LEFT ON THE GLASS THERE.. THISD MIGHT BE CAUSING THE STREAKS YOU CAN CHECK THIS BY PUTTING THE PAGE IN THE DOC FEEDER AND DOING A COPY AND THEN PUT IT ON THE GLASS PLATE UNDER THE LID AND DO A COPY OR IF HOOKED UP TO COMPUTER DO A PRINT JOB.. IN NO STEAK APPEARS YOU CAN BE SURE ITS ON THE THIN SCANNER GLASS.. GOOD LUCK ...a

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2 Answers

Lines on my copies


As the page you wish to copy goes through the document feeder, it passes the scanner as well as a white plastic band that the scanner "compares" the dark writing or data on the page to. If this white plastic band is not very clean, the scanner reads the dirt as if it is part of the image you are scanning. Try cleaning the band as thoroughly as possible, as well as the small piece of glass to the left of the larger glass on the flat bed scanner. Make another copy to test your results.

Hope this helps!

May 07, 2009 | HP LaserJet M5025 MFP All-In-One Printer

1 Answer

Panasonic UF-490 - Two streaks down page


Either the glass is scratched or the sensor has gone bad that is used to scan the image.  Are you using a document feeder or laying it flat on the glass?  If you are laying it flat on the glass then it is most likely a sensor going bad.  If you are feeding it through the document feeder it could be that the feeder itself needs to be cleaned, or the paper path through the feeder.
If it is the sensor you will need to send it out for repair.  There may be an option to re-calibrate the scanner in the software, that may help if the sensor has just degraded and not failed.
I hope that helps.

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1 Answer

HP Officejet 6300 All-in-one machine makes black streaks


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2 Answers

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