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  1. #1
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    Ricoh MP C4504 color registration issues

    Ricoh MP C4504 color registration issue

    I have an MPC 4504 that fails when attempting colour registration. SP2111 C works fine for a course adjustment but fails on A or D. We have replaced the ITB and Cleaner, also the ID sensors. Ive also worked through all of the countermeasures listed in the service manual with no improvement. Now looking at replacing a possible laser unit, BCU or IOB. Has anybody else seen this before?

  2. #2
    Professional Moron 2,500+ Posts TonerMunkeh's Avatar
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    Re: Ricoh MP C4504 color registration issues

    What sort of life are the drums and devs on? When you print out a test pattern does it look like any particular colour is out of registration more than the others?

  3. #3
    Service Manager 2,500+ Posts
    Ricoh MP C4504 color registration issues

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    Re: Ricoh MP C4504 color registration issues

    Many years ago there was a post from someone that I made note of, that I refer to as "Advanced Line position Adjustment".
    It was originally for really old machines like the MP C3500's, etc, but I used it several times through at least the '01 series colour units with success.

    Look for my post on this thread. While it didn't work in this case, it can't hurt to try.

    Ricoh MP C3300, info after Engine reset
    Last edited by sandmanmac; 06-18-2021 at 04:11 PM.

  4. #4
    Copier Technician 1,000+ Posts
    Ricoh MP C4504 color registration issues

    mga's Avatar
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    Re: Ricoh MP C4504 color registration issues

    Quote Originally Posted by cinelli View Post
    Ricoh MP C4504 color registration issue

    I have an MPC 4504 that fails when attempting colour registration. SP2111 C works fine for a course adjustment but fails on A or D. We have replaced the ITB and Cleaner, also the ID sensors. Ive also worked through all of the countermeasures listed in the service manual with no improvement. Now looking at replacing a possible laser unit, BCU or IOB. Has anybody else seen this before?
    Why would you start looking at pwb's what's the pm lifes start there 1st what's the copy quality like

  5. #5
    Service Manager 10,000+ Posts
    Ricoh MP C4504 color registration issues

    Phil B.'s Avatar
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    Re: Ricoh MP C4504 color registration issues

    Quote Originally Posted by mga View Post
    Why would you start looking at pwb's what's the pm lifes start there 1st what's the copy quality like
    because they don't think logically ....

  6. #6
    Retired 10,000+ Posts slimslob's Avatar
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    Re: Ricoh MP C4504 color registration issues

    Did you replace the entire ITB assembly or just the belt? Ricoh has had problems in the past with belts slipping on the assembly.

    When you replaced the ID sensor was it a new assemble or did you take it from another machine. A new assembly comes with a sticker that has the values for SP3-333, SP3-334 and SP3-335. If those are not correct you will get errors.

    You still have not answered TonerMunkeh's question. Drums or development units that need to be replaced will cause procon errors. Under toned developers will causes errors as the ID sensor cannot read the patches clearly.

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