Ricoh MP305+ blur printing after drum replacement

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  • daishun
    Junior Member
    • May 2025
    • 8

    #1

    Ricoh MP305+ blur printing after drum replacement

    Dear all, I replaced the drum on my Ricoh MP305+, but now the prints look like this.
    Do I need to go into service mode to change some settings?

    thanks!!
    Attached Files
  • luca72
    Field Supervisor

    1,000+ Posts
    • Oct 2017
    • 1711

    #2
    Originally posted by daishun
    Dear all, I replaced the drum on my Ricoh MP305+, but now the prints look like this.
    Do I need to go into service mode to change some settings?

    thanks!!
    maybe it's defective, maybe it took a few hits during transport and something came off, have you tried with the old one? what does it do?
    "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

    Comment

    • slimslob
      Retired

      Site Contributor
      25,000+ Posts
      • May 2013
      • 37059

      #3
      Did you replace the entire PCDU or just the drum? Did you also replace the PTR?

      Comment

      • daishun
        Junior Member
        • May 2025
        • 8

        #4
        Originally posted by luca72

        maybe it's defective, maybe it took a few hits during transport and something came off, have you tried with the old one? what does it do?
        yes i tried with the old one and new one alternatively. and they became the same result.

        Comment

        • daishun
          Junior Member
          • May 2025
          • 8

          #5
          Originally posted by slimslob
          Did you replace the entire PCDU or just the drum? Did you also replace the PTR?
          i didn't replace the entire unit. i only replace the drum roll (it is in blue color) itself...

          Comment

          • slimslob
            Retired

            Site Contributor
            25,000+ Posts
            • May 2013
            • 37059

            #6
            Originally posted by daishun

            i didn't replace the entire unit. i only replace the drum roll (it is in blue color) itself...
            When you replace just the drum you should also replace the cleaning blade, charge roller, the charge roller cleaner and the developer. Of course the after market vendor who sold you their cheap drum didn't tell you that did they.

            Comment

            • daishun
              Junior Member
              • May 2025
              • 8

              #7
              Originally posted by slimslob

              When you replace just the drum you should also replace the cleaning blade, charge roller, the charge roller cleaner and the developer. Of course the after market vendor who sold you their cheap drum didn't tell you that did they.
              no....
              so instead of replace the cleaning blade, charge roller, the charge roller cleaner and the developer. Shall i just "clean" them?

              Comment

              • MIGUELMARCHENA
                Trusted Tech

                Site Contributor
                100+ Posts
                • Feb 2018
                • 185

                #8
                The developing unit was contaminated, that is, it was overfed.
                No process control was performed, etc.
                Normally, the above steps are changed at the same time as the blade cylinder, developer, loading, cleaning, etc.
                Ultimately, to get things right, and if only the drum was damaged and the developer still had life:
                Put in an empty cartridge and make dark copies, leaving the edge with a piece of white paper about 5 centimeters wide. To prevent it from jamming in the fuser due to the blackness of the copies, open the cover and remove about 40 sheets.
                Check if the black has been discharged. Remove a counter again to see the triangle and the cleanliness of the sheet.
                Based on that, see if it's still contaminated and makes more black copies. Or, if it's okay, perform the normal drum process or a new unit.

                On these machines, if the spent developer is not changed, it will overfeed and produce dirty copies on the back.

                Comment

                • luca72
                  Field Supervisor

                  1,000+ Posts
                  • Oct 2017
                  • 1711

                  #9
                  Originally posted by MIGUELMARCHENA
                  The developing unit was contaminated, that is, it was overfed.
                  No process control was performed, etc.
                  Normally, the above steps are changed at the same time as the blade cylinder, developer, loading, cleaning, etc.
                  Ultimately, to get things right, and if only the drum was damaged and the developer still had life:
                  Put in an empty cartridge and make dark copies, leaving the edge with a piece of white paper about 5 centimeters wide. To prevent it from jamming in the fuser due to the blackness of the copies, open the cover and remove about 40 sheets.
                  Check if the black has been discharged. Remove a counter again to see the triangle and the cleanliness of the sheet.
                  Based on that, see if it's still contaminated and makes more black copies. Or, if it's okay, perform the normal drum process or a new unit.

                  On these machines, if the spent developer is not changed, it will overfeed and produce dirty copies on the back.
                  I hope I didn't miss any piece with all this cazzo of advertising to close....but, come on guys!...just change the cylinder, and at least wash the charging roller with soap and water, it must work, in my opinion he assembled something badly, there is something out of place, it would be interesting to see how the prints were before the intervention, I hope he at least reset the 3-701=OPC, to allow the machine to readjust the currents to the new part.
                  Last edited by luca72; 1 week ago.
                  "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

                  Comment

                  • davel
                    Technician

                    1,000+ Posts
                    • Oct 2011
                    • 1089

                    #10
                    Replace genuine PCDU as instructed in service manual

                    Comment

                    • sandmanmac
                      Field Supervisor

                      Site Contributor
                      2,500+ Posts
                      • Feb 2009
                      • 3973

                      #11
                      Originally posted by daishun
                      Dear all, I replaced the drum on my Ricoh MP305+, but now the prints look like this.
                      Do I need to go into service mode to change some settings?

                      thanks!!
                      As others have said.
                      The drum itself is the least of your problems with this sample image
                      It's everything else in the unit that works in conjunction with the drum, and of course you should also replace the drum when replacing the other components; However it's not intended to be rebuilt - especially with inferior compatible parts. It's intended to be replaced as a complete unit.

                      Comment

                      • GIUBOSS
                        Service Manager

                        Site Contributor
                        1,000+ Posts
                        • Jul 2013
                        • 1385

                        #12
                        Replace the entire pcdu unit, cleaning the inside of the mounting bay first if you don't want to make things worse. Have you checked the PM counter? Why don't you ask for advice BEFORE you get your hands on it?

                        Comment

                        • daishun
                          Junior Member
                          • May 2025
                          • 8

                          #13
                          thanks everyone,

                          At the very beginning when i discovered a black line constantly appear on paper, i found out the drum is damage.
                          so i ordered a drum and replace by following this video

                          and it turn out a failure for me

                          i just tried to photocopy and also print from a black paper,
                          it turns out like the pic attached.

                          Originally posted by luca72

                          I hope I didn't miss any piece with all this cazzo of advertising to close....but, come on guys!...just change the cylinder, and at least wash the charging roller with soap and water, it must work, in my opinion he assembled something badly, there is something out of place, it would be interesting to see how the prints were before the intervention, I hope he at least reset the 3-701=OPC, to allow the machine to readjust the currents to the new part.
                          how to allow the machine to readjust the currents to the new part?
                          i am managed to enter the service mode.

                          is there anything i can do here?



                          Attached Files

                          Comment

                          • luca72
                            Field Supervisor

                            1,000+ Posts
                            • Oct 2017
                            • 1711

                            #14
                            3-701-[OPC] and restart the machine
                            but looking carefully at the defect, and besides the fact that now I understand that it did it before, I don't think that's the solution, the defect is too serious, is it possible that by chance you emptied the developer from the development unit?...because we have had cases in which the customer has done this

                            on the other hand, making a diagnosis just by looking at a photo, you will understand that it is not the easiest thing in the world
                            clean also the laser glass bar, someone might have sprayed lubricating oil and it got greasy
                            "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

                            Comment

                            • Popolopo
                              Trusted Tech

                              100+ Posts
                              • May 2023
                              • 110

                              #15
                              Originally posted by daishun
                              thanks everyone,

                              At the very beginning when i discovered a black line constantly appear on paper, i found out the drum is damage.
                              so i ordered a drum and replace by following this video

                              and it turn out a failure for me

                              i just tried to photocopy and also print from a black paper,
                              it turns out like the pic attached.



                              how to allow the machine to readjust the currents to the new part?
                              i am managed to enter the service mode.

                              is there anything i can do here?


                              look like charge not go thru. try check charge roller plate.
                              or gear at magnetic roller been insert wrongly.

                              Comment

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