TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

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  • Estico
    Technician
    • Jun 2012
    • 21

    #1

    [Electrical] TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

    just replaced Cyan Drum, Dev and Transfer Belt - same result! Any idea? Thanks.
    Attached Files
  • kyrenecopy
    Trusted Tech

    100+ Posts
    • Apr 2012
    • 205

    #2
    Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

    What was the original call for? And am I missing something here, I see cyan on the test sheet you attached?
    Testing 1-2-3, testing, testing. Is this thing on?

    Comment

    • Tonerkiller
      Senior Tech

      500+ Posts
      • Oct 2012
      • 665

      #3
      Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

      The color cleaning motor is not turning. Turn machine off, take the back cover off, turn on machine and all motors should spin. Replace the ones that are not turning.

      Comment

      • Estico
        Technician
        • Jun 2012
        • 21

        #4
        Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

        the original call was for blue dots - replaced cyan drum then got no cyan on color belt U089 - only the blue marks... After that we tried new cyan drum, dev and transfer belt - no result.

        Comment

        • JustManuals
          Field Supervisor

          5,000+ Posts
          • Jan 2006
          • 9838

          #5
          Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

          This Parts & Service manual can now be purchased for $12.77 and downloaded immediately after payment from:

          Just Manuals, The Internet's largest selection of manuals ~ Instant Downloads


          Paul@justmanuals.com

          Comment

          • madas
            Trusted Tech

            250+ Posts
            • Aug 2008
            • 313

            #6
            Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

            I have seen a similar fault on other models as a main charge issue.

            madas

            Comment

            • blackcat4866
              Master Of The Obvious

              Site Contributor
              10,000+ Posts
              • Jul 2007
              • 22936

              #7
              Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

              Originally posted by madas
              I have seen a similar fault on other models as a main charge issue.

              madas
              I'm with madas on this one. If the interval is 38.9mm it's the primary charge roller arcing.

              Did you replace just the cyan drum, or the cyan drum unit assembly (which includes the primary charge unit)? New parts or used? =^..^=
              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

              • madas
                Trusted Tech

                250+ Posts
                • Aug 2008
                • 313

                #8
                Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

                Here's a couple of samples I have of this fault.

                madas
                Attached Files

                Comment

                • dyodyo
                  Technician
                  • Apr 2009
                  • 28

                  #9
                  Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

                  If you already replaced Drum Unit, Dev. Unit and Transfer Belt and the result is the same as you said then check the values of U100 (Adjust DC2)? Maybe somebody mess around with the settings.

                  Comment

                  • Tonerkiller
                    Senior Tech

                    500+ Posts
                    • Oct 2012
                    • 665

                    #10
                    Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

                    It still looks to me like the cyan drum is not cleaned. The waste toner builds up on top of the drum unit and the tran belt rubbs on that toner and leaves marks on all prints.

                    Comment

                    • Estico
                      Technician
                      • Jun 2012
                      • 21

                      #11
                      Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

                      yep - i replaced the cyan drum unit assembly, cyan dev and transfer belt. Also swapped out with Yellow drum (which includes the main charger) - same result.

                      Comment

                      • Estico
                        Technician
                        • Jun 2012
                        • 21

                        #12
                        Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

                        Originally posted by dyodyo
                        If you already replaced Drum Unit, Dev. Unit and Transfer Belt and the result is the same as you said then check the values of U100 (Adjust DC2)? Maybe somebody mess around with the settings.

                        Comment

                        • ccwilliams3
                          Technician
                          • Jun 2009
                          • 22

                          #13
                          Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

                          What about the color cleaning motor?

                          Comment

                          • Estico
                            Technician
                            • Jun 2012
                            • 21

                            #14
                            Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

                            Originally posted by ccwilliams3
                            What about the color cleaning motor?
                            We fixed it today - the board interface where the color drums and devs connects was causing the faulty ground issue (blue marks on prints). Thanks everyone!

                            Comment

                            • blackcat4866
                              Master Of The Obvious

                              Site Contributor
                              10,000+ Posts
                              • Jul 2007
                              • 22936

                              #15
                              Re: TA300ci - no cyan and weird blue marks on prints and copies (see sample)!

                              Originally posted by Estico
                              We fixed it today - the board interface where the color drums and devs connects was causing the faulty ground issue (blue marks on prints). Thanks everyone!
                              Thanks for sharing. =^..^=
                              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

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