ARM-451N poor quality on second side

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  • vlad_robas
    Trusted Tech
    100+ Posts
    • Oct 2006
    • 225

    #1

    ARM-451N poor quality on second side

    When is printing or copy on second side it doesen't have contrast almost all the time. If is one side only is ok. I think is a paper guiding problem but i can't realy figure out where to start.
  • OMD-227

    #2
    Hi Vlad,

    If the problem is happening with both Copy & Print, ONLY on the second side, I'd first look very closly at the condition of the Upper Heat Roller. Although it might look OK, a close inspection usually shows a slightly worn coating. This can definitely cause second side C/Q issues, such as ghosting, banding & faint image. Make sure the fuser temps as set to defaults.
    The same issue on both copy & print rues out any problem with the scanner. Check the Drum unit Flange has not worn, as this will cause a density variation on the rear frame side.

    Is the firmware up to date? Ensure that is done, and when replacing drum/dev, ensure the rotation counters are reset as well in 24-11.

    Comment

    • vlad_robas
      Trusted Tech
      100+ Posts
      • Oct 2006
      • 225

      #3
      It's a scanner related problem.... somwhere on the RSPF ... i will check it closer tomorow.

      Comment

      • blackcat4866
        Master Of The Obvious

        Site Contributor
        10,000+ Posts
        • Jul 2007
        • 22997

        #4
        Originally posted by vlad_robas
        It's a scanner related problem.... somwhere on the RSPF ... i will check it closer tomorow.
        I don't understand vlad. Are prints affected, or not? If it's just copies you may want to check the alignment of the SPF with the slit glass. It is a common mistake to try to adjust out original skew by changing the angle of the SPF. All this does is mis-align the white plate with the slit glass. =^..^=
        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

        • vlad_robas
          Trusted Tech
          100+ Posts
          • Oct 2006
          • 225

          #5
          I did about 100 print's on bouth sided and that was ok and then i did try to copy 10 document's 2-sided and the face that was up isn't having contrast.

          Comment

          • vlad_
            Technician

            50+ Posts
            • Jul 2008
            • 98

            #6
            Was a similar problem. It was found that the cover RSPF unevenly pressed to narrow the glass. The floor in the room wood and eventually changed the slope of the copier. Tilt RSPF, completely solved the problem.1.jpg

            Comment

            • blackcat4866
              Master Of The Obvious

              Site Contributor
              10,000+ Posts
              • Jul 2007
              • 22997

              #7
              I think that you may have adjusted the image squareness of the scanner. That also affects the image focus.

              Congratulations on a successful fix. =^..^=
              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

              • vlad_robas
                Trusted Tech
                100+ Posts
                • Oct 2006
                • 225

                #8
                So the promblem is that the DF isn't scanning the document as well as the lower scanning part so i did the shading corection 63-2-2 and no change. I did tryed to lower or raise the scanner with no effect.
                Then i tryed to adjust the CIS position and specialy to lower it with no major efect, then when i did raise it the copy was very poor.
                Atm i don't have any other ideeas of what should i do next!?
                Last edited by vlad_robas; 08-23-2010, 10:47 AM.

                Comment

                • bilyahn
                  Service Manager

                  1,000+ Posts
                  • Dec 2006
                  • 1470

                  #9
                  Did you try to adjust the height of the DF with the small allen head screws on the top of the hinges? Normally I get darker edging when I need to adjust this but worth a try. Also when I have had a similar problem with lighter copies on the 2nd side I had to replace the scanner board itself.

                  Good luck.

                  Bil

                  Comment

                  • wtroll
                    Technician

                    50+ Posts
                    • May 2008
                    • 85

                    #10
                    Hi,
                    first clean the 2nd scanner (CIS) glass, after use sim 46.20 (point 5 - DSPF) to adjust the CIS exposure level.
                    The standard value is 128.
                    This would have to help you.
                    Good luck!

                    Comment

                    • vlad_robas
                      Trusted Tech
                      100+ Posts
                      • Oct 2006
                      • 225

                      #11
                      That was it.
                      The value it had was 187.
                      Thank you.

                      Comment

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