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  1. #11
    Service Manager 5,000+ Posts
    Mp2501 image quality issues

    Phil B.'s Avatar
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    Re: Mp2501 image quality issues

    i wonder if my trick with Nu Finish on the charge roller would fix this issue? it worked on the smaller color 350/450.. actually increased sharpness of prints and the drum units started going the 120,000pg and some even more!

    pull the roller..

    clean with water ..dry

    cover the roller in a thin film .. let dry and buff off with lint free towel..

    sometimes you had to re-apply 2/3 times but they came out nice n clean and shiny black

    mind you this only works on hard rubber rollers DO NOT USE ON FOAM rollers

  2. #12
    Service Manager 1,000+ Posts Polarbear's Avatar
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    Re: Mp2501 image quality issues

    Quote Originally Posted by tsbservice View Post
    This charge roller looks pretty bad and charging section is damn dirty for so little copies.
    Regular cleaning will improve its life but anyway it's low. I guess not the brightest Ricoh machine
    There is something screwy with the cleaning section on these boxes.

    We have had a few already where the cleaning auger seizes and causes the pcu to dump all the collected toner all over the charge roller with "fantastic" copies afterwards! It gets so bad that it breaks the gear at the end of the auger that is supposed to supply drive to it.

    So far we are not sure what the cause is.

    Agreed on cleaning the charge roller with water and cloth, until no remaining dirt of the cloth as you dry it.
    Press the GREEN button!!

  3. #13
    Service Manager 1,000+ Posts
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    Re: Mp2501 image quality issues

    Quote Originally Posted by GIUBOSS View Post
    not to be underestimated the paper residues especially if of poor quality can damage the drum for a long time. On these models I replace the transfer roller together with the pcdu maintenance kit , also clean the laser part, glass etc.
    +1, bad paper.

  4. #14
    Service Manager 1,000+ Posts
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    Re: Mp2501 image quality issues

    have you empty-ed the paper dust collector bar?

  5. #15
    Retired 10,000+ Posts slimslob's Avatar
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    Re: Mp2501 image quality issues

    Quote Originally Posted by Polarbear View Post
    There is something screwy with the cleaning section on these boxes.

    We have had a few already where the cleaning auger seizes and causes the pcu to dump all the collected toner all over the charge roller with "fantastic" copies afterwards! It gets so bad that it breaks the gear at the end of the auger that is supposed to supply drive to it.

    So far we are not sure what the cause is.

    Agreed on cleaning the charge roller with water and cloth, until no remaining dirt of the cloth as you dry it.
    I have had this type of toner recycle auger load up with paper lint/dust. This get worse with high rag paper. With the drum removed, use a small spring hook and run it along the edge of the auger and you will pull out a bunch of toner filled dust bunnies. Depending on the quality of paper, you may have to do this about every 30K to 40K copies.

  6. #16
    Senior Tech 250+ Posts Codex's Avatar
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    Re: Mp2501 image quality issues

    Quote Originally Posted by Mark Bbb View Post
    have you empty-ed the paper dust collector bar?
    Yes, usually i clean everything inside the Pcu unit

    Inviato dal mio SM-G900F utilizzando Tapatalk
    Memento Audere Semper

  7. #17
    Service Manager 1,000+ Posts
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    Re: Mp2501 image quality issues

    Quote Originally Posted by Codex View Post
    Yes, usually i clean everything inside the Pcu unit

    Inviato dal mio SM-G900F utilizzando Tapatalk
    So, you did not knew about this dust bar...
    Do you know where it is situated in this machine?

  8. #18
    Senior Tech 250+ Posts Codex's Avatar
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    Re: Mp2501 image quality issues

    Quote Originally Posted by Mark Bbb View Post
    So, you did not knew about this dust bar...
    Do you know where it is situated in this machine?
    You mean the underside of the registry unit?....

    Inviato dal mio SM-G935F utilizzando Tapatalk
    Memento Audere Semper

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