SHARP Mx2310U halftone problem

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  • frk01
    Junior Member
    • Jan 2016
    • 5

    #1

    SHARP Mx2310U halftone problem

    Hi to All,

    I made 100k maintenance on our mx2310 last week, replacing all officially required parts, done all officially required SIM calibrations.

    Everything is ok, except one problem: printing halftone blocks (black toner only), they shows unequal coverage at the left, and the right.
    Pls. see:IMG_4738_smaller.JPG
    It looks like printer is so sluggish at starting of the block printing, causing thinner lines. Then the coverage is ok until the end of the block, when lines gets thicker.

    I remember, when the machine initially set-up years ago, the same problem appeared with cyan toner, but this was successfully solved by a real Sharp technician. But how?

    It is an irritating problem, becuase if normal text and lines are printed instead of blocks, they are very thin. Readable, but very thin.
    Every problem has a positive side: it saves toner, but I would like to solve this big quality issue...
  • frk01
    Junior Member
    • Jan 2016
    • 5

    #2
    Re: SHARP Mx2310U halftone problem

    Anybody?

    Comment

    • PrintToPDF
      Technician
      • Oct 2015
      • 27

      #3
      Re: SHARP Mx2310U halftone problem

      Assuiming the MFP was calibrated, was the process unit properly cleaned and reassembled? There may be contamination. Ensure that the DCH lens is clean.

      Same goes for the DV unit. Quility issues arrise, if any old developer is mixed with new.

      Comment

      • dwarf
        Trusted Tech

        100+ Posts
        • Oct 2012
        • 168

        #4
        Re: SHARP Mx2310U halftone problem

        have you run sim 50-22?...

        Comment

        • frk01
          Junior Member
          • Jan 2016
          • 5

          #5
          Re: SHARP Mx2310U halftone problem

          I've rerun 50-22 and adjusted values properly (skew values within +1 -1), but problem still persists and didn't become better.
          OPC unit and DV unit throughoutly cleaned (lens and all parts) at maintenance, and old developer is fully removed before new one poured into.

          Any thoughts?

          Comment

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