Question about HP LaserJet 2840 Printer

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HP 2840- vertical black streaks on paper edges when copying using black only- copies fine in color

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  • Anuj Bhatt
    Anuj Bhatt May 11, 2010

    Please mention the correct model # of the printer

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  • 8 Answers

The Drum unit is worn or defective. try another drum unit. this should take care of your problem.If it's new then get your money back and replace it.

Posted on Dec 22, 2009

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1 Answer

How do I fix this


Vertical Bands, Lines, or Streaks in Copies, Faxes, or Scans

support.hp.com/us-en/document/c02881567
Figure : Sample output with vertical colored bands or lines ... Remove any paper from the automatic document feeder (ADF) tray. ... To protect the scanner, do not spray the glass cleaner directly on the glass. .... determine if your printer is still under warranty, and then Contact HP Support to schedule a repair or replacement.

How to get rid of lines on a copied page - YouTube

? 2:10
https://www.youtube.com/watch?v=xTJpCg5sHl0
Feb 17, 2010 - Uploaded by Wayne Springer
When you make copies on your copy machine, does it ever leave a black vertical line ... QLS ' How to Eliminate Vertical Linesfrom Scans, Copies & Faxes ... Part 2- Fix or repair color laser printer with fading, light print, or lines ...

Dec 29, 2015 | Office Equipment & Supplies

1 Answer

Why do copies in color have multicolored streaks while black & white are fine?


There is a good chance that your color ink cartridge needs replacement. You can tray wetting a paper towel and putting in the microwave for 5 to 10 seconds then placing the cartridge on it for a few minutes. This sometimes will correct that type of problem...Be careful the paper towel will be hot (handle with care).

Aug 04, 2014 | HP Officejet Pro 8600

1 Answer

'Copy' output has vertical streak, 'Print' output is clean.


You likely have a smudge on the glass where the scanner reads the paper as it passes through the auto-feeder. On a flatbed - this is not the large rectangle of glass. This is a thin sliver of glass to the side.
Often a drop of White-out will do this.

Aug 27, 2009 | HP LaserJet 2840 Printer

2 Answers

Hp Photosmart c5280 1/ 2inch thick black line


There is something on your scanner glass. Clean the glass with glass cleaner. If this happens when using the automatic document feeder, open the top side cover where the paper feeds into. There is a narrow glass strip there. Clean that as well.

If this fails, the scanner head has a bad sector on the CCD and will need to be replaced. You will probably find that it will be cheaper to replace the printer entirely if that is the case.

Jun 22, 2009 | HP LaserJet 3055 All-In-One Printer

1 Answer

Paper jamming


Reset printer first. Meny > go to Service > choose Restore default, if issue remains try upgrade firmware.

Nov 13, 2008 | HP LaserJet 2840 Printer

1 Answer

Black steak on copied paper


Clean the scanner glasses, check the little glass, if it have scratches. There is a white strip across between the 2 glasses, be shure to clean it up.

Oct 23, 2008 | HP LaserJet 2840 All-In-One Printer

2 Answers

HP 7410 streaks when using auto document feeder to make copies


the document feeder of that unit have its own scanner glass. try opening the document feeder and clean the scanner glass with a lint free cloth that is moist with water and also clean the rollers of the document feeder

Aug 13, 2008 | HP OfficeJet 6210 All-In-One InkJet...

2 Answers

HP 7410 streaks when using auto document feeder to make copies


Good, so u are having probs in ADF. Open the cover, lift the rollers and u can see the scanning glass. Take a lint free cloth and clean it. it will be ok.

Feb 03, 2008 | HP OfficeJet 7410 All-In-One InkJet...

1 Answer

Black lines on copies when run thru fax feeder


There is a thin strip of glass that you will see when you lift the top feeder. There is most likely white-out on it.

When you use the top feeder, it doesn't use the large glass, it only 'rolls' the original document over this small strip of glass.

Jan 18, 2008 | HP LaserJet 2840 Printer

1 Answer

HP 7410 streaks on scanning and copying


First you need to determine if it's doing from both the  top and the glass.

1-assuming you are using the feeder to fax,copy or scan (the part that automatically picks up the paper) it comes out with a streak. Make a copy putting the paper on the glass and look at the copy. Does it have the streak?

2-lift the top and look to the left there should be a small 1inch glass, this is where it makes the copies from the feeder, is there a dot or white out or is the glass dirty? that's your streak, the paper is moving to make the copy,so the dot now looks like a line as opposed to making a copy on the glass it just sits there so a dot will stay a dot.

2- Clean with water or alcohol.

Oct 23, 2007 | HP OfficeJet 7410 All-In-One InkJet...

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