+ Reply to Thread
Results 1 to 9 of 9

Thread: C-2840 on C6500

  1. #1
    Technician seniortech is on a distinguished road
    Join Date
    Dec 2007
    Posts
    40
    Rep Power
    5

    C-2840 on C6500

    I have a C6500 that I am due to look at next week that is coming up with a constant code C-2840 - Gamma correction abnormality (PCC Sensor correction failure during Maximum Control). Both Sensor Assy and PRCB have been replaced with no effect.

    Has anyone seen this code before, any ideas what may be causing this? Have never seen this code before.

    Many Thanks



  2. #2
    Junior Member Splitcane is on a distinguished road
    Join Date
    Dec 2008
    Location
    Denmark
    Posts
    8
    Rep Power
    0
    I have one too. We have tried replacing all boards, without any effect.

    We are still searching for a solution.

    /Splitcane

  3. #3
    Technician edmund is on a distinguished road
    Join Date
    Jul 2009
    Location
    jhb
    Posts
    22
    Rep Power
    2
    Have a look at the transfer belt .We had cuople of cases were the belt was running scew on the unit

  4. #4
    Junior Member Splitcane is on a distinguished road
    Join Date
    Dec 2008
    Location
    Denmark
    Posts
    8
    Rep Power
    0
    We have tried to replace the entire transferbelt unit, color reg unit, all boards. now we have ordert the harness betveen printer control board and color reg unit.

    /Thomas

  5. #5
    Technician Cantechman is on a distinguished road
    Join Date
    Nov 2008
    Posts
    48
    Rep Power
    3
    have you tried this...


    C-2840 (C2840)at startup.
    Solution
    CAUSE: The PGC sensor is malfunctioning.
    SOLUTION: Recall Standard Data to Factory Init from the Process Adj screen in Service mode.

  6. #6
    Trusted Tech 50+ Posts harry2007 is on a distinguished road
    Join Date
    Jan 2009
    Location
    est europe
    Posts
    50
    Rep Power
    3

    c6500

    Pull out the transfer belt unit and remove it.On the machine in upper-left side,near tranfer belt -inserted- is situated a long sensor board assy. remove this board and clean all sersors.
    Also this code appear if you reseted drum or developer counter but you don't realy change it.
    And STOP to change the PWBs !

  7. #7
    Technician seniortech is on a distinguished road
    Join Date
    Dec 2007
    Posts
    40
    Rep Power
    5
    Quote Originally Posted by Splitcane View Post
    We have tried to replace the entire transferbelt unit, color reg unit, all boards. now we have ordert the harness betveen printer control board and color reg unit.

    /Thomas
    I replaced this harness and it cured the fault, turned out to be bad contacts within the connector that the color reg unit plugs into.

  8. #8
    Technician jma676 is on a distinguished road
    Join Date
    Mar 2009
    Location
    Cap. Fed.
    Posts
    23
    Rep Power
    3
    Try this adj. (Printer Gamma Sensor Adjustment) Set Default With Data Reset.

  9. #9
    Junior Member Splitcane is on a distinguished road
    Join Date
    Dec 2008
    Location
    Denmark
    Posts
    8
    Rep Power
    0

    C-2840

    Our machine had a low serialnumber. We replaced all 4 printerheads to the new type. Problem solved.

+ Reply to Thread

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts