bizhub 958 print quality issue. Faint image. Low image density.

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  • subhashck
    Technician
    • Mar 2020
    • 18
    #1

    bizhub 958 print quality issue. Faint image. Low image density.

    Please refer the attached photos.

    Model: bizhub 958
    Counter: 97,000 only.
    Drum Unit & Developing Unit physically seems OK.
    Transfer Belt is OK. Cleaned the IDC (Front) Sensor.
    Earlier print was total blank. After manual Toner add in Service Mode the Print becomes darker, but not upto the mark.
    TCR is 7.14%
    N.B: The problem occurred when the Toner exhausted

    Kindly suggest
    Attached Files
    Tags: bizhub, drum, image, suggest, unit
    • Gift
      Service Manager

      1,000+ Posts
      • Mar 2011
      • 2448
      #2
      Re: bizhub 958 print quality issue. Faint image. Low image density.

      Guess I'd start with a new dev unit if the image looks faint on the drum, too (du a full bleed test and interrupt the print to see how it looks).

        Comment

        • elmaligno
          Expert technician KM

          250+ Posts
          • Oct 2009
          • 298
          #3
          Re: bizhub 958 print quality issue. Faint image. Low image density.

          Originally posted by subhashck
          Please refer the attached photos.

          Model: bizhub 958
          Counter: 97,000 only.
          Drum Unit & Developing Unit physically seems OK.
          Transfer Belt is OK. Cleaned the IDC (Front) Sensor.
          Earlier print was total blank. After manual Toner add in Service Mode the Print becomes darker, but not upto the mark.
          TCR is 7.14%
          N.B: The problem occurred when the Toner exhausted

          Kindly suggest
          Check the opening of the AIDC sensor window of the transfer belt, it is not working properly because the actuator (the white plastic part9 that has to open it rubs against the chassis. you have to install the modified one that comes with the BH950i or trim it a little.
          Attached Files
          Field technician since 1994

            Comment

            • otphas
              Trusted Tech

              Site Contributor
              100+ Posts
              • Aug 2019
              • 107
              #4
              Re: bizhub 958 print quality issue. Faint image. Low image density.

              Maybe is weird answer, but to me happened this and CLEAR ALL DATA help.

                Comment

                • blackcat4866
                  Master Of The Obvious

                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 22946
                  #5
                  Re: bizhub 958 print quality issue. Faint image. Low image density.

                  Genuine toner? =^..^=
                  If you'd like a serious answer to your request:
                  1) demonstrate that you've read the manual
                  2) demonstrate that you made some attempt to fix it.
                  3) if you're going to ask about jams include the jam code.
                  4) if you're going to ask about an error code include the error code.
                  5) You are the person onsite. Only you can make observations.

                  blackcat: Master Of The Obvious =^..^=

                    Comment

                    • subhashck
                      Technician
                      • Mar 2020
                      • 18
                      #6
                      Re: bizhub 958 print quality issue. Faint image. Low image density.

                      Originally posted by blackcat4866
                      Genuine toner? =^..^=
                      Yes genuine Toner.

                        Comment

                        • subhashck
                          Technician
                          • Mar 2020
                          • 18
                          #7
                          Re: bizhub 958 print quality issue. Faint image. Low image density.

                          Dear all, thanks for your valueable suggestions and inputs!

                          Please refer attached Table No, Level History 1 & 2 photographs.
                          Attached Files

                            Comment

                            • tsbservice
                              Field tech

                              Site Contributor
                              5,000+ Posts
                              • May 2007
                              • 7926
                              #8
                              Re: bizhub 958 print quality issue. Faint image. Low image density.

                              Your voltages are too high, you may have bad high voltage unit/1 (HV/1)
                              A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                              Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                                Comment

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