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  1. #1
    Technician
    Join Date
    Oct 2019
    Location
    Hampshire
    Posts
    12
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    2

    CM6040 finisher misalignment issue

    Hi guys, newbie posting so go easy

    Been to a customer today with an stacking offset issue
    As pages of 10 or more sheets become collated 2/3 sheets of the stack become misaligned and as a consequence mis-stapled
    The user runs 1000's of these per month
    These are almost always 2-sided and high colour coverage on both sides

    We had a few spare finishers in the warehouse so swapped with spare but has had no effect

    Things I've tried (on old and replacement):
    Strip finisher and cleaned all exit and return rollers and cleaned and checked sensors
    Adjust the fuser setting to alternate 4 to reduce heat and speed also try light paper setting
    Upgrade firmware to latest so both machine and finisher are in sync (52.390.1)
    Adjust alignment via dip switch settings on finisher (though I hadn't done this before but found in service manual)

    Things to mention:
    All consumables running are genuine but the fuser is at 20% and rollers look slightly wrinkled
    Paper being used is Q-connect plain 80gsm which thus far has working fine on a variety of other 6040's and M880's in the field
    I no longer have use of CSN so don't have access to the latest updates but have the CPMD (may 2019) and service manual and other useful docs

    In conclusion:
    I was thinking of going back in with a new fuser and possibly fresh ream of alternate paper (xerox eco paper)
    I do have a document pulled from CSN regarding M880 finisher alignment/adjustment but nothing for 6040
    I realise these machines are quite dated now and have been dogged by fuser issues

    Any constructive advise more than welcome

  2. #2
    Service Manager 5,000+ Posts
    CM6040 finisher misalignment issue

    Phil B.'s Avatar
    Join Date
    Jul 2016
    Location
    Raleigh NC
    Posts
    8,206
    Rep Power
    176

    Re: CM6040 finisher misalignment issue

    Quote Originally Posted by Southerner View Post
    Hi guys, newbie posting so go easy
    Been to a customer today with an stacking offset issue
    As pages of 10 or more sheets become collated 2/3 sheets of the stack become misaligned and as a consequence mis-stapled
    The user runs 1000's of these per month
    These are almost always 2-sided and high colour coverage on both sides
    We had a few spare finishers in the warehouse so swapped with spare but has had no effect
    Things I've tried (on old and replacement):
    Strip finisher and cleaned all exit and return rollers and cleaned and checked sensors
    Adjust the fuser setting to alternate 4 to reduce heat and speed also try light paper setting
    Upgrade firmware to latest so both machine and finisher are in sync (52.390.1)
    Adjust alignment via dip switch settings on finisher (though I hadn't done this before but found in service manual)
    Things to mention:
    All consumables running are genuine but the fuser is at 20% and rollers look slightly wrinkled
    Paper being used is Q-connect plain 80gsm which thus far has working fine on a variety of other 6040's and M880's in the field
    I no longer have use of CSN so don't have access to the latest updates but have the CPMD (may 2019) and service manual and other useful docs

    In conclusion:
    I was thinking of going back in with a new fuser and possibly fresh ream of alternate paper (xerox eco paper)
    I do have a document pulled from CSN regarding M880 finisher alignment/adjustment but nothing for 6040
    I realize these machines are quite dated now and have been dogged by fuser issues
    Any constructive advise more than welcome
    first may I say.. thank you for such a concise report on the issue

    full color heavy saturation NEEDS higher fuser temp and lower feed speed.

    my experience (lots of it) with HP fuser esp the newer ones, IF the roller is wrinkled and with that amount of pages on it... fuser would be 1st in my repair actions.

    are they running genuine OEM toners and fusers?

    sounds like you are on the right track..
    please keep us updated

  3. #3
    Technician
    Join Date
    Oct 2019
    Location
    Hampshire
    Posts
    12
    Rep Power
    2

    Re: CM6040 finisher misalignment issue

    Hi phil thanks for the quick response

    Yes customer running genuine OEM toners/drums/fuser

    Will go back in with fuser and fresh alternate paper and go from there

    One other thing to mention machine is at 700K with 600K colour

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