C203 light copy

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  • wkwar
    Technician

    Site Contributor
    50+ Posts
    • Jan 2019
    • 61
    #1

    C203 light copy

    hello there

    blues started when we ran out of toner. replaced toner and light B&W copies. did a manual toner feed and worked for a while. after some copies it is again light. took toner out and shake and "beat" it, i can feel toner moving in there. look in toner shoot, seems open and blew some air thru it. question.
    - did we killed the developer?
    - is toner cartridge bad?
    - is the toner chute block?
    Tags: None
    • femaster
      Service Manager

      1,000+ Posts
      • May 2011
      • 1478
      #2
      If you did a manual toner add, when you looked in the chute of the toner hopper, the toner should have been full right to the top. There should be little to no airspace in there. If there is, it sounds like the toner is not adding for some reason. Check the shutter on the bottle, open it (after you made sure the toner was away from the opening) and see if there is something blocking the opening on the toner itself. These machines are getting rather dated, and I'm sure the toner for them is probably just as old. Is it quiet when you shake the toner? It's possible the toner has started to clump up due to age or improper storage.

      A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
      My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

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        • wkwar
          Technician

          Site Contributor
          50+ Posts
          • Jan 2019
          • 61
          #3
          after manually adding toner. top of chute is empty. i can see the auger. i have open the toner shutter and can see no blockage, i can get toner to come out too. no sound when shaking the toner. i can fell the toner shifting inside if i tilt the toner cartridge. so what would cause the toner not to come out? old toner even if i can open the slide and see toner powder coming out?

            Comment

            • femaster
              Service Manager

              1,000+ Posts
              • May 2011
              • 1478
              #4
              It sounds like the machine is not able to drive the auger inside the toner for some reason. Unfortunately I have limited resources for that model line of machines as we haven't one out in the field in a number of years now.

              I'd start by making sure you have the correct toner cartridge. I remember that the C203 and C253 used one cartridge, and the faster C353 used a different one. Make sure what you have is the correct one for the C203 (TN213), and not the C353 (TN314). I don't remember if it was just the tabs on the cartridge that were different, or if it was also the drive cog in the back. If that is different, the copier won't be able to drive the auger in the cartridge.

              I'm not sure If you can see the toner cartridges or not if you remove the upper cover from the output area, but if the cartridges are correct, that would be my next step. You need to gain access to that area to determine if the toner cartridge drive is working by watching it during a toner add.
              A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
              My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

                Comment

                • wkwar
                  Technician

                  Site Contributor
                  50+ Posts
                  • Jan 2019
                  • 61
                  #5
                  the box did say TN213K ... mark the drive on the toner and definitely it is not turning... let me see i can get access to the back.

                    Comment

                    • wkwar
                      Technician

                      Site Contributor
                      50+ Posts
                      • Jan 2019
                      • 61
                      #6
                      from the parts manual, looks like M3 drive C/K toner. Mark the drive gears and both are not moving. Defective M3? Does the printer not throw a code with a defective M3?

                        Comment

                        • femaster
                          Service Manager

                          1,000+ Posts
                          • May 2011
                          • 1478
                          #7
                          Unfortunately there is no specific service code for the operation of that motor. Its lack of operation could result in other codes coming up, however, like toner density errors for the developer mix. With that motor driving both the K and C toners, I'd expect that if it weren't working, you should be able to run cyan half-tone pages and watch the percentage drop for cyan as well. If the machine can maintain the percentage, it's not likely to be a motor issue.

                          I'm not sure exactly which gear you marked, but referencing the service manual seem to indicate the motor runs in both directions, and depending on the direction it turns determines which of the 2 toner addition mechanisms spins. It also indicates that each of the drive gears have a one way bearing on them so that it free spins when rotated in one direction, and locks up to drive the toner section in the other direction. One way bearings are famous for slipping on the shaft they ride, on so it might be a possibility that the motor is operating but the bearing is slipping and not driving the K toner.

                          image.png
                          A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
                          My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

                            Comment

                            • wkwar
                              Technician

                              Site Contributor
                              50+ Posts
                              • Jan 2019
                              • 61
                              #8
                              open the back and the motor does not rotate. will continue with the dissembly...

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                                • wkwar
                                  Technician

                                  Site Contributor
                                  50+ Posts
                                  • Jan 2019
                                  • 61
                                  #9
                                  i am stump....test the coil resistance on both M3 nd M4 and they are good. swap the motor M3 & m4 motor around. now both do not turn. is there some other sensor or am i looking at a bad motor and a PRCB... sounds not likely... appreciate any feedback. This all stated after we ran out of black toner for a while and then replace the toner.

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