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Thread: MPC 4000

  1. #1
    Technician Toner Man's Avatar
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    MPC 4000

    Two Issues:


    1. Skewing from all 4 trays on single-sided copies or print jobs-possible registration issue, not sure if it is a clutch issue or what
    2. 8x11 paper: 2nd page touches the first page at the bottom of the duplexer causing skewing and crumpling of the pages, 11x17 or 8x14 pages never skews or touch one another


    Could be a timing issue in that the first page should enter the mfp before the second page has a chance to touch it


  2. #2
    grumpy old git 500+ Posts banginbishop's Avatar
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    Re: MPC 4000

    skewing from bypass? remove the registration plate and check the mylar or any glue from the media being used as well. oh and firmware up to date?


  3. #3
    New lottery numbers.... 500+ Posts NeoMatrix's Avatar
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    Re: MPC 4000

    What does the SMC report say ?
    SP 5994?
    Any problems with the Junction Gate sensor or Fuser Exit sensor counters ?

    “Nose back to the grind stone..........."
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  4. #4
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    Lightbulb Re: MPC 4000

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  5. #5
    Technician Toner Man's Avatar
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    Not jamming from the bypass

    Good idea, to check the registration plate


  6. #6
    Technician Toner Man's Avatar
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    Haven't checked the SMC report yet, thanks for the reminder


  7. #7
    Techie 1,000+ Posts tcs04's Avatar
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    Re: MPC 4000

    Quote Originally Posted by Toner Man View Post
    Two Issues:


    1. Skewing from all 4 trays on single-sided copies or print jobs-possible registration issue, not sure if it is a clutch issue or what
    2. 8x11 paper: 2nd page touches the first page at the bottom of the duplexer causing skewing and crumpling of the pages, 11x17 or 8x14 pages never skews or touch one another


    Could be a timing issue in that the first page should enter the mfp before the second page has a chance to touch it
    The registration sounds like the same issue we had on an MPC4500 recently. Went through the usual, bickle adjust etc with no success.

    Changed the green plastic bushes on the reg roller (The ones the springs hook onto) and the rubber reg roller, seems to have improved 95%. Am returning with the reg guide this week as a precaution, the mylar on the guide is worn.

    One of our guys told me he had an issue with "Crumpled paper, Z folding , Jams at fuser / exit". He found a cooked sensor "On the duplex door above the rear edge of the fuser" (?). Haven't seen the fault myself, but the previous tech had ordered guides / clutches etc and it didn't cure the problem. He swapped the sensor with one from an old paper feed station (Same part) and it cured the problem.


  8. #8
    Technician Toner Man's Avatar
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    Problem Resolved

    The driven roller on the fusing cover had a spring missing so the rollers were not engaging with the duplex guIde rollers. Good info on your behalf as well.


  9. #9
    Techie 1,000+ Posts tcs04's Avatar
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    Re: Problem Resolved

    Quote Originally Posted by Toner Man View Post
    The driven roller on the fusing cover had a spring missing so the rollers were not engaging with the duplex guIde rollers. Good info on your behalf as well.
    mmmmmm...... feedback!


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