phaser 7760 with magenta background even if printing black

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  • axyun
    Service Manager

    Site Contributor
    1,000+ Posts
    • Aug 2007
    • 1323

    #1

    phaser 7760 with magenta background even if printing black

    Phaser 7760 has magenta background on whole page. Even if printing black there will be black print and whole page of magenta background. Customer says swapped magenta drum unit and magenta toner but made no difference. Frank/ActionPhotocopy
  • KJEpps
    Senior Tech

    50+ Posts
    • Jun 2012
    • 63

    #2
    Re: phaser 7760 with magenta background even if printing black

    Is it a pale magenta or solid fill of magenta? Does it cover the page edge-to-edge or is there a border? If there's no margin, it sounds like a high voltage issue. Also look at the magenta developer and developer housing for toner buildup.

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    • axyun
      Service Manager

      Site Contributor
      1,000+ Posts
      • Aug 2007
      • 1323

      #3
      Re: phaser 7760 with magenta background even if printing black

      The page from top to bottom has magenta lines running across. There are 3 sides with a border of about 1/8 inch . If you print a black sheet the black print is on top of the magenta so it can be read with no voids. I scanned the sample to my computer but Copytechnet is saying invalid file. It is a tif if that is helpful. Frank

      Comment

      • KJEpps
        Senior Tech

        50+ Posts
        • Jun 2012
        • 63

        #4
        Re: phaser 7760 with magenta background even if printing black

        Are the lines evenly spaced? If 44mm or 94 mm apart, try the imaging unit. If 28.3mm apart, check the developer housing roller.

        Your file might need to be a jpg or pdf.

        Comment

        • axyun
          Service Manager

          Site Contributor
          1,000+ Posts
          • Aug 2007
          • 1323

          #5
          Re: phaser 7760 with magenta background even if printing black

          probably dv unit as you mention. I.U. was already ruled out. Customer needsdisplay too. Will call customer with proposal. Thanks. Frank

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