Color LJ 3550

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  • copyman
    Owner / Technician

    Site Contributor
    2,500+ Posts
    • Sep 2005
    • 4664

    #1

    Color LJ 3550

    Printing black very light. It is gray instead of black. All other colors are good. Tried new OEM toner & changed the blk dev clutch but did not help.

    Not sure if this is relevant but printer seems to be running slower.

    Any other suggestions? Thanks in advance
  • mjunkaged
    Trusted Tech

    250+ Posts
    • Feb 2009
    • 383

    #2
    Faded colors...

    First, check high voltage contacts at the sides of carts.
    Then it's probably going to be the HV board. I recently had one with the same exact problem, only on Cyan.
    The reason is that it's a HUGE HV board on the side that delivers voltages to all the carts.

    You can call partsnow tech support to confirm
    www.partsnow.com
    for the #

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