c452 with shadow background

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  • juve
    Technician

    50+ Posts
    • Dec 2012
    • 86
    #1

    c452 with shadow background

    [ATTACH]28827[/ATTACH][ATTACH]28827[/ATTACH][ATTACH]28827[/ATTACH]
    can someone give me an idea of what sort of problem I have in this c452 please?it is producing a shodow background as it can be seen in photo.any ideas.
    Attached Files
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    • Max
      Senior Tech

      500+ Posts
      • Oct 2011
      • 548
      #2
      Re: c452 with shadow background

      Maybe its my laptop screen but I cant see any shadows. What have u tried so far ?

        Comment

        • juve
          Technician

          50+ Posts
          • Dec 2012
          • 86
          #3
          Re: c452 with shadow background

          see this one if it is better?
          Attached Files

            Comment

            • juve
              Technician

              50+ Posts
              • Dec 2012
              • 86
              #4
              Re: c452 with shadow background

              Originally posted by Max
              Maybe its my laptop screen but I cant see any shadows. What have u tried so far ?
              we swapped transfer roller,than we swapped laser unit(because there were lines,know lines ok),refreshed firmware,checked all connections which have to do with charging,but the shadow effect remained.

                Comment

                • allan
                  RTFM!!

                  5,000+ Posts
                  • Apr 2010
                  • 5459
                  #5
                  Re: c452 with shadow background

                  Check to see if the patern looks digital.
                  Check your TCR level.
                  Check for P-codes.
                  Change IU.
                  Whatever

                    Comment

                    • EarthKmTech
                      Step aside, noob

                      1,000+ Posts
                      • May 2009
                      • 2139
                      #6
                      Re: c452 with shadow background

                      stupid question, but initialized and done a gradation adjust ?

                        Comment

                        • copier tech
                          Field Supervisor

                          5,000+ Posts
                          • Jan 2014
                          • 8107
                          #7
                          Re: c452 with shadow background

                          Originally posted by EarthKmTech
                          stupid question, but initialized and done a gradation adjust ?
                          Yeah I would ask the same & what are your image unit lifes on? & using OEM toner?
                          Let us eat, drink, and be merry, because tomorrow we may die!

                          For all your firmware & service manual needs please visit us at:

                          www.copierfirmware.co.uk - www.printerfirmware.co.uk
                          ​

                            Comment

                            • juve
                              Technician

                              50+ Posts
                              • Dec 2012
                              • 86
                              #8
                              Re: c452 with shadow background

                              Originally posted by copier tech
                              Yeah I would ask the same & what are your image unit lifes on? & using OEM toner?
                              yes we made initialisation and gradiation.everything remains the same.regards lifetimes,i will check,but surely I will try to replace I/U's and transfer belt.there are no p codes.tcr level ok.dev unit black is not arcing,no dev spill.

                                Comment

                                • Max
                                  Senior Tech

                                  500+ Posts
                                  • Oct 2011
                                  • 548
                                  #9
                                  Re: c452 with shadow background

                                  Went to a customer on Friday and they also had some background on the copy. Not as bad as yours but still visible. They are not using oem toner though. I got some proper stuff coming in on Wednesday, will let you know what happens.

                                    Comment

                                    • juve
                                      Technician

                                      50+ Posts
                                      • Dec 2012
                                      • 86
                                      #10
                                      Re: c452 with shadow background

                                      Originally posted by max
                                      went to a customer on friday and they also had some background on the copy. Not as bad as yours but still visible. They are not using oem toner though. I got some proper stuff coming in on wednesday, will let you know what happens.
                                      it seems that problem is solved after replacing c/m/y imaging units.seems ok!

                                        Comment

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