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  1. #1
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    Ricoh MPC4504 Bypass Trouble

    Hello, I have a bypass tray that has been used regularly as a envelope feeder.
    The unit will pull the envelope for a whole second and then stop with the separation roller pushing the envelope back in to the tray. So far I have changed all the pulleys as well as all the one way clutches and gears. This is a strange problem that also effects letter size paper. Does anyone know of a part number for the bypass unit ( the entire unit )? in the manual it shows only a duplex unit which is the entire right side door. Thanks in advance.

  2. #2
    Service Manager 2,500+ Posts
    Ricoh MPC4504 Bypass Trouble

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    Re: Ricoh MPC4504 Bypass Trouble

    Quote Originally Posted by bdesire View Post
    Hello, I have a bypass tray that has been used regularly as a envelope feeder.
    The unit will pull the envelope for a whole second and then stop with the separation roller pushing the envelope back in to the tray. So far I have changed all the pulleys as well as all the one way clutches and gears. This is a strange problem that also effects letter size paper. Does anyone know of a part number for the bypass unit ( the entire unit )? in the manual it shows only a duplex unit which is the entire right side door. Thanks in advance.
    look in PM under right door IPB

  3. #3
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    Re: Ricoh MPC4504 Bypass Trouble

    Quote Originally Posted by Phil B. View Post
    look in PM under right door IPB
    Thanks for the quick response but the only option in the parts manual is for duplex unit. There isn't a right door.

  4. #4
    Service Manager 2,500+ Posts
    Ricoh MPC4504 Bypass Trouble

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    Re: Ricoh MPC4504 Bypass Trouble

    Quote Originally Posted by bdesire View Post
    Thanks for the quick response but the only option in the parts manual is for duplex unit. There isn't a right door.
    Ok WHICH side is the tray on?
    Look in manual for that side covers...

    Sent from my SM-G960U using Tapatalk

  5. #5
    Retired 5,000+ Posts slimslob's Avatar
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    Re: Ricoh MPC4504 Bypass Trouble

    The pickup roller is lifting while the feed motor is still turning and the lead edge has not yet the next roller.

  6. #6
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    Re: Ricoh MPC4504 Bypass Trouble

    Quote Originally Posted by slimslob View Post
    The pickup roller is lifting while the feed motor is still turning and the lead edge has not yet the next roller.
    Yes, thats exactly what its doing, what is the cause? Thanks

  7. #7
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    Re: Ricoh MPC4504 Bypass Trouble

    Copypaper has always a size limitations on printers...
    Perhaps the size of the enveloppe is to small to fit the minimum standards?

  8. #8
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    Re: Ricoh MPC4504 Bypass Trouble

    Quote Originally Posted by Mark Bbb View Post
    Copypaper has always a size limitations on printers...
    Perhaps the size of the enveloppe is to small to fit the minimum standards?
    Its also happening on letter size paper.

  9. #9
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    Re: Ricoh MPC4504 Bypass Trouble

    Are all paper settings correct?
    Fix the by pass paper size to A4.
    Print with on A4 paper
    Same problem?

  10. #10
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    Re: Ricoh MPC4504 Bypass Trouble

    Quote Originally Posted by Mark Bbb View Post
    Are all paper settings correct?
    Fix the by pass paper size to A4.
    Print with on A4 paper
    Same problem?
    I don't have A4 paper but it happens with letter, legal all sizes.

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