356ci faint cyan

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  • mntech
    Trusted Tech

    Site Contributor
    250+ Posts
    • Aug 2010
    • 250
    #1

    [CQ] 356ci faint cyan

    Hello tech community,

    I have a kyocera 356ci giving me hell. They cyan is very washed out and is causing colors to not look right.

    I have replaced the Dev, Drum, Transfer Belt, and Laser Unit with no luck. (from a good working machine we have at our shop)

    Tried dev refresh, calibrations, half tone adjust fails. Even tried monkeying with the bias voltages in service. No luck.

    Ill attach some examples, let me know if you have any ideas. On the U089 chart the large cyan box is visible on the page, but wouldn't scan, just very faint.

    Thanks,
    -MNTech

    356ci.pdf
    Tags: 356ci faint cyan light, cyan, dev, faint
    • tsbservice
      Field tech

      Site Contributor
      5,000+ Posts
      • May 2007
      • 7934
      #2
      Re: 356ci faint cyan

      You've replaced almost everything but high voltage unit. Hopefully Kyo techs will come with more ideas.
      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

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 22966
          #3
          Re: 356ci faint cyan

          Have you tried an emergency stop, then viewing the latent developed images on the transfer belt, and on the drum?

          I'm going to guess that you've got a good latent image on the cyan drum, but it's incomplete primary transfer. There may be something wrong with the primary transfer roller mechanics, the HVT or the main board. =^..^=
          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

            • KYO_OEM
              Senior Tech

              500+ Posts
              • Aug 2011
              • 700
              #4
              Re: 356ci faint cyan

              check HV contact from belt.
              Have had similar problem with magenta in past.
              Unbenannt.JPG

                Comment

                • copiertec
                  Service Manager

                  Site Contributor
                  1,000+ Posts
                  • Jan 2016
                  • 2186
                  #5
                  Re: 356ci faint cyan

                  Ditto of what KYO OEM posted, I ran into the same issue about 2 weeks ago, copies and prints were fine before I removed the transfer belt to clean because of toner drops on the paper. Reinstalled the belt and had an issue with black copies afterwards. Then I noticed the contact for the black was out of place, realigned it and all was good.

                    Comment

                    • taskalfaman
                      Trusted Tech

                      100+ Posts
                      • Nov 2009
                      • 137
                      #6
                      Re: 356ci faint cyan

                      most likely spring insite the device which is out position due to removal of old Transfer belt.
                      If you measure you will know. Normally you should see it also visually.

                      have fun.

                        Comment

                        • sparkycivic
                          Trusted Tech

                          250+ Posts
                          • Apr 2017
                          • 348
                          #7
                          Re: 356ci faint cyan

                          I had this on yellow that took me wayyy too long to notice that the spring at the rear of the machine for the transfer belt (Y) was stuck retracted and twisted in it's little slot, very hard to see.

                          I wasted a new developer, drum, transfer belt, and many hours messing around with it.

                            Comment

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