What colour should mp4002 dev roller be!?

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  • copier tech
    Field Supervisor

    5,000+ Posts
    • Jan 2014
    • 8070
    #1

    [CQ] What colour should mp4002 dev roller be!?

    The reason I ask is I looked at an mp4002 today with poor print quality, faint copies.
    I cleaned the dev roller & the black coating came off, so I thought is it supposed to be silver or black!?
    Let us eat, drink, and be merry, because tomorrow we may die!

    For all your firmware & service manual needs please visit us at:

    www.copierfirmware.co.uk - www.printerfirmware.co.uk
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    Tags: None
    • knobby
      Technician

      50+ Posts
      • Oct 2008
      • 75
      #2
      Re: What colour should mp4002 dev roller be!?

      The black coating is toner, should be silver

        Comment

        • LNorris
          Senior Tech

          500+ Posts
          • Sep 2008
          • 646
          #3
          Re: What colour should mp4002 dev roller be!?

          supposed to be silver if cleaned, black caked on it will give bad quality

            Comment

            • Mark Bbb
              Service Manager

              1,000+ Posts
              • Jun 2012
              • 1662
              #4
              Re: What colour should mp4002 dev roller be!?

              Clean it with "scotch brite"...

                Comment

                • slimslob
                  Retired

                  Site Contributor
                  25,000+ Posts
                  • May 2013
                  • 36256
                  #5
                  Re: What colour should mp4002 dev roller be!?

                  Should the black coating return quickly, you will need to:
                  1. Dump all the developer.
                  2. Clean it again. Use a copper wire brush to get the grooves clean.
                  3. Coat it with "Stay bright" or something similar.
                  4. Completely remove all toner residue from the entire PCDU. If off brand toner has been used also clean all residue from the toner tray.
                  5. Refill with genuine Ricoh developer and only use genuine Ricoh toner.


                  Should the coating still return, replace the development unit and repeat steps 4 and 5. Ricoh used to sell just the development roller but no longer does. Keep the lower portion in case you ever have the bearings on the mixer roller seize.

                    Comment

                    • Mark Bbb
                      Service Manager

                      1,000+ Posts
                      • Jun 2012
                      • 1662
                      #6
                      Re: What colour should mp4002 dev roller be!?

                      Originally posted by slimslob
                      Should the black coating return quickly, you will need to:
                      1. Dump all the developer.
                      2. Clean it again. Use a copper wire brush to get the grooves clean.
                      3. Coat it with "Stay bright" or something similar.
                      4. Completely remove all toner residue from the entire PCDU. If off brand toner has been used also clean all residue from the toner tray.
                      5. Refill with genuine Ricoh developer and only use genuine Ricoh toner.


                      Should the coating still return, replace the development unit and repeat steps 4 and 5. Ricoh used to sell just the development roller but no longer does. Keep the lower portion in case you ever have the bearings on the mixer roller seize.
                      There is no thing missing here, boy!

                        Comment

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