BH-363 mono, trailing edge part missing.

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  • Hansoon
    Field Supervisor
    Site Contributor
    2,500+ Posts
    • Sep 2007
    • 3237
    #1

    BH-363 mono, trailing edge part missing.

    BH-363 mono, trailing edge part missing. Machine has about 360K on the clock.

    About 10 mm at the trailing edge are skipped/condensed accompanied by a very fine line. (see attachment).

    The fine line is forwarding into edge erase region but does somehow not show in the here attached scans but it goes right to the very edge of the paper.

    This happens occasionally but often. Both with copies and also internal prints. Reseated memory already but no improvement. My guts are telling me either laser or logic boards. What do you guys think? I'll have to go there tomorrow back again.


    SCAN-C-353-16111718430.pdf SCAN-C-353-16111718440.pdf

    Hans
    " Sent from my Intel 80286 using MS-DOS 2.0 "
    Tags: None
    • allan
      RTFM!!
      5,000+ Posts
      • Apr 2010
      • 5402
      #2
      Re: BH-363 mono, trailing edge part missing.

      Huh...

      On print and copy?

      Hehe. Ok

      Don't know what to say.

      And it does not jam?
      What is the paper size?
      Whatever

        Comment

        • acusso1234
          Tecnico
          250+ Posts
          • Dec 2008
          • 250
          #3
          Re: BH-363 mono, trailing edge part missing.

          Registration roller bushings?
          ... In the minute that you're thinking of giving up, think about why you lasted so long ...

            Comment

            • blackcat4866
              Master Of The Obvious
              Site Contributor
              10,000+ Posts
              • Jul 2007
              • 22545
              #4
              Re: BH-363 mono, trailing edge part missing.

              Maybe laser cutting out, but I've never seen a laser failure like that. =^..^=
              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

                • srvctec
                  Former KM Senior Tech
                  500+ Posts
                  • Oct 2009
                  • 827
                  #5
                  Re: BH-363 mono, trailing edge part missing.

                  What happens on different lengths of paper? Same issue on all lengths?
                  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

                    • blackcat4866
                      Master Of The Obvious
                      Site Contributor
                      10,000+ Posts
                      • Jul 2007
                      • 22545
                      #6
                      Re: BH-363 mono, trailing edge part missing.

                      Originally posted by srvctec
                      What happens on different lengths of paper? Same issue on all lengths?
                      If it were laser it would be random, no set interval from lead or trail.

                      Your samples seem to be the same distance from the trailing edge, so perhaps the registration roller bushings are a better possibility. The paper may be stalling while the drum continues to rotate. =^..^=
                      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

                        • Hansoon
                          Field Supervisor
                          Site Contributor
                          2,500+ Posts
                          • Sep 2007
                          • 3237
                          #7
                          Re: BH-363 mono, trailing edge part missing.

                          Replaced that machine those days and found out only now, at last, time to investigate the troubled machine.

                          It turned out that a Hop-Sing drum caused the problem. The gear was not fitted completely into the drumcore and was chafing to something in the machine causing obviously an overload of the Image Unit drive motor.

                          When the problem first occurred, that time, I tested this Image Unit in another machine where it did not show the problem - likely not every machine is exactly the same - so I was erroneously believing that the problem was in the troubled machine itself, not in the image unit.

                          Confucius says: "Being Too Much Of A Cheapo May Ruin Your Day"
                          or: Don't never, ever, trust Chinese junk even when you are an Indy and forced to cut costs.

                          Hans
                          Attached Files
                          Last edited by Hansoon; 08-07-2017, 12:27 PM.
                          " Sent from my Intel 80286 using MS-DOS 2.0 "

                            Comment

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