Question about HP Color LaserJet 2600n Printer

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Colors are uneven, too much green on the right side and too much red on the left

I have had a 2600n laser jet for 2+ years, orignal cartridges about 1/2 full. Recently when printing pciture, we noticed that green areas are way too green and red areas have too much red. A blue sky has a slight tinge of red too it. I printed the trouble shooting page and the upper yellow band and the lower magenta band show fading on the left and right sides which suggested a problem with the magenta cartridge. I purchased a new HP magenta cartridge which didn't fix the problem, cleaning, resetting to defaults, calibration, and updated firmware did not fix the problem. The config page looks normal, colors are correct and no sign of fading at the edges. Is it possible that driver for the printer (actually the rendering engine) has some how gotten confused? Can I just reload the driver on top of the current one? Help.

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  • simple user Dec 12, 2007

    Thanks for the suggestions. I haven't tried the demo page as it was getting late last night. The printer is at home so I will try it tonight.



    simple user

  • simple user Dec 18, 2007

    To Nick11



    Thanks. The Demo page looks fine. I downloaded a new driver, no change. I loaded the driver on another computer, moved the printer, no change. At the moment I am out of good suggestions. As to the cost of the repairs, NewEgg is selling the printer for less than the cost of the 4 HP Cartridges. I like the printer. Maybe I will just spring for the printer as it is cheaper than buying all new replacement cartridges.



    simple user

  • simple user Feb 29, 2008

    Thanks everyone for the suggestions. I downloaded the cleaning instructions. I also bought another 2600n printer. It was considerably less than 4 new cartridges. At this rate I am going to have a lot of cartridgeless printers hanging around.



    I intend to take the old 2600n apart and clean the mirrors. I also moved the printer location. It was sitting on a shallow stand underneath the computer desk, which would increase the amount of dust that the printer would ingest.



    Thanks again



    simple user

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Same problem with my HP Color (Colour) LaserJet 2605dn. I took apart the printer and found the mirrors inside the optic box all covered in dust. A clean with a cotton bud (Q-Tip) solved the problem.

I took lots of photos of my solution and put them on my website, if you're interested. Don Thompson's pdf file (see other posting here) is also a good source of info on the problem and solution.

My photos & cleaning steps:
http://tinyurl.com/yoq4mq

-- which just redirects you to this longer URL:
http://blog.reeves-hall.net/fixing-washed-out-colour-on-hp-color-laserjet-2605/

Posted on Feb 29, 2008

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The internal optics are dirty. It's a known problem that HP's been ignoring.  More info is here:  http://forums12.itrc.hp.com/service/forums/bizsupport/questionanswer.do?admit=109447627+1202453734788+28353475&threadId=1073731

Detailed instructions are on this page - look for Don Thompson's posting at Sep 15, 2007 23:38:51 GMT and click the papercliip to see the procedure. It's not for the faint of heart.

Posted on Feb 08, 2008

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I have a similar problem with a 2605dn which prints magenta faded on either side of the page but solid in the centre. The other colours are fine. I think it may be a fault with the laser (or its control circuitry) for the magenta colour. HP support couldn't tell me what the problem is but suggested I send it in for repair at a cost equivalent to buying a new one!

Posted on Dec 17, 2007

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Did you do a demo test page? how does it look?

yes you can re-install the driver on the current one it'll be a duplicate

Posted on Dec 12, 2007

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