Question about Xerox Phaser 8550DP Printer

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Printer all of a sudden stopped printing, (LED screen out so unable to read errors). Everything was working fine and then it just stopped printing any more jobs, the red light was on the control panel and I noticed upon regular inspections, opening and closing every door that there was no heat coming from the drum area like usual. Here is how I found and fixed the problem.

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    YIRMASTER Jul 04, 2010

    Generally these printers are pretty good workhorses but when they have a problem, pound your head against the wall. Luckily as time goes by and they get older service documentation is showing up online (previously unavailble).

    For quite some time now, not sure when it started, could have been before or after a firmware update colors started printing darker and smearing as if a few ink jets or whatever you call them are blocked, tests and stoping the troubled ones from printing never solved the problem but it doesn't stop the printer from working as far as printing letters and contracts goes, just flyers and images are kinda messed up. Forget about color matching or even getting close!

    Anyway the LED screen lights up but has no readout, it intermittently works and is clear, sometimes it reads upside down, not sure what causes that.

    Now yesterday out of the blue the printer just stopped working, the heating element seems to have cooled off and isn't heating up now either. Usually you can smell the ink and feel the heat when you open the top front panel coming from the drum area but not so now. I tried to cycle the power several times, left it off overnight and so on. Today I entered diagnostic mode because by some miracle I was leaning on the top right of the printer and the display lit up and began working! Spooky... Anyway I am able to see a trouble code so I went to the internet and googled looking for an error code list, found it and it has something to do with yellow ink feed or melt error. The code is 09,037.45:57184 unfortunately there is no instruction on what to do next so I began playing in the diagnosis screen trying to find something that would test the heating element and... somewhere along the way between the characters looking like hyrogliphics or reading upside down I can see that if you play with the buttons for the ? to the back buttons or entering diagnostic mode you can play with it enough to semi get the display to work. What a pain in the... anyway somewhere along the line the display stopped working again putting the kabosh on diagnosing anything. It's going to be a long 4th of july weekend when I have to wait to order a control panel. I see someone said xerox will replace it free. I hope so because the local service guy wanted to charge me a small fortune for it.

    Note after much frustration and on the verge of taking the machine apart myself, well partially,then putting the few pieces back (not wanting to get in too deep). After reading the maintenance and tech manuals I turned the printer on its back took a screwdriver and tried to let all the ink blocks fall back as if I were trying to remove the ink. Then I dug in a little deeper looking for broken and jammed blocks of ink. I didn't really find any but the melted pieces which were on the heating element and of course worn down as then do normally during use. I don't know maybe one of them worn at an angle or something but once I set the ink back and closed the top and started this puppy back up I saw on my browser CertreWare IS interface that the printer wan no longer showing an error and is now warming up. Something it was not doing before. All this due to a stuck piece of ink!

    I wonder how much the shop tech would have charged for sticking a screw driver in there?
    Having a tech background myself, I totally understand why though. It's not whether you are able to stick a screwdriver in the machine or not, it's knowing where to stick it. I understand this but am a persistant bugger and just prefer doing it myself when able. (Being broke does make for a good motivator as well.) And that's my story!

    in my journey I came across a few links someone may find helpful so I figured I would share them with you.

    Xerox Phaser 8550DP Support, Guides & Manuals

    Error Codes

    PHASER 8550 Service Manual

    Tip: Press and Hold Arrow up botton and hit OK to enter diagnosis mode


    Centreware Installation, Monitoring and Troubleshooting Tool

    and of course Troubleshooting Resource Site (usually not too helpful giving any straight forward solutions but can give you ideas and point your in the right direction.)

    Get a free replacement front panel from xerox, not sure if it's true or even if this is the correct contact info yet.



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The inverted, blank, or garbled display is pretty common, a new control panel will fix that and is super easy to install and no tools required. Here is a video that shows how.">

Posted on Jan 29, 2011

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Call 1-800-835-6100. That is a known problem with that printer. Xerox will send you one free of charge.

Posted on Jul 09, 2010


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