Hp 4000/horizontal lines

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  • cucuklotz
    Senior Tech

    Site Contributor
    500+ Posts
    • Mar 2007
    • 611
    #1

    Hp 4000/horizontal lines

    HI,
    Drum gets toner embedded over a period of time forming approx 1.5 inch lines (that of course repeat).you can scrap toner off (carefully) with your nails,or lite chemical. then over a period of tine it will happen again.Im using Oem 27x cartridges(FYI).I thought it was transfer roller(old one was VERY worn) so I put NERW one in. customer called back and said same thing is happennning again. it happens over 100s or even 1000s of copies. Any thoughts on matter ?
    Thanks, Andy
    Tags: 4000 or horizontal, approx, horizontal line, lines, power issue, power supply, stuck
    • prntrfxr
      Service Manager

      1,000+ Posts
      • Apr 2008
      • 1627
      #2
      Hp 4000/horizontal lines

      Never heard of this one. Here's a shot in the dark:

      Humidity Issue:
      Are they working in a high humidity area?
      What kind of paper are they using?

      Power Issue:
      Transfer charges not good
      Bias charges on drum not normal?
      Clean contacts on cartridge and in printer?
      Bad Power supply?
      Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well-preserved body, but rather to skid in sideways - Coke in one hand - chocolate in the other - body thoroughly used up, totally worn out and screaming "WOO-HOO, what a ride!".

        Comment

        • cucuklotz
          Senior Tech

          Site Contributor
          500+ Posts
          • Mar 2007
          • 611
          #3
          HP 4000

          Hi,
          thanks again for answer.It happens on every cartridge over time. I dont think its humidity issue.It looks like someone took a pencil and drew a line or two on drum .
          ANDY

            Comment

            • gordie
              Technician

              50+ Posts
              • May 2008
              • 83
              #4

              I had a case with a customer using a brand of envelope that over a period of time the glue built up on the drum & the toner stuck to it.
              Gordie.
              sigpic

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