ar-m450n copy quality

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  • DINGO
    Senior Tech

    500+ Posts
    • Nov 2007
    • 661
    #1

    ar-m450n copy quality

    Hello
    My copier makes the copies with different density from one side to the other for example in A4 mode the top of the page is darker than the end. I have already made everything, i cleaned the optical sistem and i adjusted the density but this didn't solve nothing, there are always a diferent density, but In impression mode everything's fine.

    What can i do to solve this problem? Thanks and sorry about some error in this text...
    thanks
    Tags: angled, arm450n, collects, copy, darker, dime, grid, impression, off, quality
    • Jaws
      Trusted Tech

      100+ Posts
      • Oct 2007
      • 235
      #2
      Sounds like you have your answer

      If you can print to it and the copy is good the you have an optics problem.

        Comment

        • DINGO
          Senior Tech

          500+ Posts
          • Nov 2007
          • 661
          #3
          Yes
          Y no that, and is only in a duplex copy ,and only y use de adf to.
          If a make a duplex copy in the glass like 1-1=2 the copy is good to.
          Y think that the problem is in the CIS, because the density of the reverse copy is not regular, it is more dark in the top and go to light at down of the copy.
          If y adjust the density of the CIS,whit the simulacion 46-20, i can to do more light or more dark, but the diference exist always.
          Some idea?
          thanks

            Comment

            • Jaws
              Trusted Tech

              100+ Posts
              • Oct 2007
              • 235
              #4
              Stop

              Does it print good copies? If yes then it is an optics problem.

              If no then you have other problems. Laser, charge grid, laser lense.


              Stop messing with the setting.

                Comment

                • ZOOTECH
                  Senior member of CRS

                  Site Contributor
                  2,500+ Posts
                  • Jul 2007
                  • 3375
                  #5
                  Pull the glass off the CIS unit, it collects dust. If cleaning doesn't help, then CIS will need replacing.
                  "You can't trust your eyes, if your mind is out of focus" --

                    Comment

                    • DINGO
                      Senior Tech

                      500+ Posts
                      • Nov 2007
                      • 661
                      #6

                        Comment

                        • ZOOTECH
                          Senior member of CRS

                          Site Contributor
                          2,500+ Posts
                          • Jul 2007
                          • 3375
                          #7
                          Sorry, I should have been clearer with my description. You have already cleaned the glass I was describing. Don't mess with the actual CIS unit.
                          "You can't trust your eyes, if your mind is out of focus" --

                            Comment

                            • DINGO
                              Senior Tech

                              500+ Posts
                              • Nov 2007
                              • 661
                              #8
                              thanks Zootech.

                                Comment

                                • blackcat4866
                                  Master Of The Obvious

                                  Site Contributor
                                  10,000+ Posts
                                  • Jul 2007
                                  • 22996
                                  #9
                                  The shading on one side only can be an optical problem. The way this happens, is that a tech tries to adjust for original skew by adjusting the angle of the SPF. The white plate must be exactly aligned with the slit glass, or the CCD starts to see the angled edge of the white plate and will darken one side front-of-the-machine side of the original. The answer to this is to take your millimeter scale, lower the SPF as low as you can, and measure the distance between the edge of the slit glass and the white plate on top. Adjust the right SPF hinge so that the dimension is the same, front and back.

                                  =^..^=
                                  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

                                    • DINGO
                                      Senior Tech

                                      500+ Posts
                                      • Nov 2007
                                      • 661
                                      #10
                                      re

                                      Thanks Blackcat4866
                                      Was by this way that y found the solucion.
                                      thanks, stay weel
                                      by

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