C458 possible board fault?

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  • barber782
    Trusted Tech

    250+ Posts
    • Aug 2011
    • 271
    #1

    C458 possible board fault?

    Hi everyone,

    Have a strange print quality issue with a C458, which to me looks like it could be a board fault but just wanted to hear others opinions first.
    Iv reseated the boards and cleaned. Updated firmware to X4, and done a mfp reset.

    See attached samples. See what you think.






    Sent from my VTR-L09 using Tapatalk
    Tags: None
    • lartis.aineias
      Technician

      50+ Posts
      • Dec 2020
      • 78
      #2
      Re: C458 possible board fault?

      Originally posted by barber782
      Hi everyone,

      Have a strange print quality issue with a C458, which to me looks like it could be a board fault but just wanted to hear others opinions first.
      Iv reseated the boards and cleaned. Updated firmware to X4, and done a mfp reset.

      See attached samples. See what you think.






      Sent from my VTR-L09 using Tapatalk
      I have a similar problem before 2 year and it was finally the laser!

      Στάλθηκε από το SM-G975F μου χρησιμοποιώντας Tapatalk

        Comment

        • Bix
          Service Manager

          1,000+ Posts
          • Apr 2018
          • 1421
          #3
          Re: C458 possible board fault?

          Hi, the laser polygons may not rotate properly. I agree on the PH Unit.

            Comment

            • barber782
              Trusted Tech

              250+ Posts
              • Aug 2011
              • 271
              #4
              Re: C458 possible board fault?

              Thanks for the replys.

              After running diagnostics mode it picks up an error e30-1 which says there is a problem with the internal memory on the mfp board. Didn't even realise there was a diagnostic mode until today.

              Sent from my VTR-L09 using Tapatalk

                Comment

                • tsbservice
                  Field tech

                  Site Contributor
                  5,000+ Posts
                  • May 2007
                  • 7635
                  #5
                  Re: C458 possible board fault?

                  Originally posted by barber782
                  Thanks for the replys.

                  After running diagnostics mode it picks up an error e30-1 which says there is a problem with the internal memory on the mfp board. Didn't even realise there was a diagnostic mode until today.

                  Sent from my VTR-L09 using Tapatalk
                  I also think PH unit is culprit. From where you get that E30-1 error code after self diagnostics? I seem to miss it in my books.
                  A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                  Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                    Comment

                    • Phil B.
                      Field Supervisor

                      10,000+ Posts
                      • Jul 2016
                      • 22808
                      #6
                      Re: C458 possible board fault?

                      +1 seen that on other brands...

                      are the laser lens clean?

                      PM's done properly and when needed?

                      try reseating the cables to the PH.

                        Comment

                        • srvctec
                          Former KM Senior Tech

                          500+ Posts
                          • Oct 2009
                          • 827
                          #7
                          Re: C458 possible board fault?

                          I've had similar looking samples and thought it was the memory but turned out to be the main board. Seems like it was on a C552 or something similar a few years ago.
                          Started in the copier service business in the fall of 1988 and worked at the same company for 33.5 years, becoming the senior tech in 2004 but left to pursue another career on 4/29/22.

                            Comment

                            • copier tech
                              Field Supervisor

                              5,000+ Posts
                              • Jan 2014
                              • 7931
                              #8
                              Re: C458 possible board fault?

                              Its not the printhead.

                              I had this exact same issue a few years ago turned out to be the MFPB.
                              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

                                • progoffice
                                  Trusted Tech

                                  250+ Posts
                                  • Nov 2008
                                  • 328
                                  #9
                                  Re: C458 possible board fault?

                                  Reference this post as well. It's a similar issue: https://www.copytechnet.com/forums/k...ml#post1580233

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