C452 Copy Quality

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  • 000nicec
    Technician
    • Feb 2011
    • 14
    #1

    [CQ] C452 Copy Quality

    Hi there
    Copy Quality C452.pdf
    I am having a problem with a C452. The Copies are light on the edges of the page. About 2cm from the back of the machine on page and 4cm from the front of the machine on the page.

    This happens on A4 and A3 Paper and all paper types.

    I have changed the Transfer belt, Imaging units, Transfer roller, PH unit and HV board. The firmware has been upgraded too.

    The image quality seems to be on the Magenta I.U. the image that is being put onto the drum seems to be light on the sides.

    At this stage I am Stumped.

    Please any assistance would be greatly appreciated.
    Tags: belt, copies, firmware, image, light, paper, quality, roller, transfer
    • JustManuals
      Field Supervisor

      5,000+ Posts
      • Jan 2006
      • 9838
      #2
      Re: C452 Copy Quality

      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

        • methogod
          Senior Tech

          Site Contributor
          500+ Posts
          • Dec 2008
          • 915
          #3
          Re: C452 Copy Quality

          from doc feeder or flatbed?

          may just need a adjustment (density) and ADF adjustment....

          seen it happen more often with B&Ws...

            Comment

            • 000nicec
              Technician
              • Feb 2011
              • 14
              #4
              Re: C452 Copy Quality

              Printing from PC or memory. Either way gives me the same problem

                Comment

                • emujo
                  Field Supervisor

                  2,500+ Posts
                  • Jun 2009
                  • 3009
                  #5
                  Re: C452 Copy Quality

                  I don't see the issue in your samples. How many copies are on the IUs, are you using thick paper and are you telling the MFP if you are? Emujo
                  If you don't see your question answered in the forum, please don't think it's OK to PM me for a personal reply...I do not give out firmware and/or manuals.

                    Comment

                    • methogod
                      Senior Tech

                      Site Contributor
                      500+ Posts
                      • Dec 2008
                      • 915
                      #6
                      Re: C452 Copy Quality

                      well you say COPY quality, i think copy not print...

                      so all around poor quality...

                      you know this is not a production machine.

                      What happens when you print a full color document that is 100% coverage...

                      I find that the entire series C451-C754 all do not print full coverage well for long runs.

                        Comment

                        • 000nicec
                          Technician
                          • Feb 2011
                          • 14
                          #7
                          Re: C452 Copy Quality

                          Machine used to print perfectly fine then all of a sudden just started printing light on the edges.
                          All I.U's have been replaced. Transfer belt and roller have been replaced.
                          Tried a different Ph unit. Tried different High voltage boards for I.U's and transfer section.
                          Tried a different Fuser unit.

                          Now I am at a total loss.
                          Pushed image density up to the max and I am getting a half decent image on plain paper but as soon as card stock is used there is an issue.

                            Comment

                            • Synaux
                              Service Manager

                              Site Contributor
                              1,000+ Posts
                              • Mar 2012
                              • 1224
                              #8
                              Re: C452 Copy Quality

                              Just to be certain, do you get the same results in Service Mode > Test Mode > Halftone?

                              ...Did you stabilize after installing all that new stuff?

                                Comment

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