601 undertoning

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  • Synaux
    Service Manager

    Site Contributor
    1,000+ Posts
    • Mar 2012
    • 1224
    #1

    601 undertoning

    Got a 601 that is undertoning like a baritone singer with the delusion of thinking its a mezzo-soprano...
    This machine has about 10k on it after installing a PM, Fixing rollers (upper and lower) and drum and a thorough cleaning.

    The imaging adjustments in service mode for these machines is pathetic for these machines, but I did what I could.

    I'm at a loss here.

    Any advise?
    Tags: None
    • minimerlin
      Senior Tech

      Site Contributor
      500+ Posts
      • Nov 2007
      • 851
      #2
      Re: 601 undertoning

      I take it that you carried out the usual set up procedures after you changed the dev etc as well as cleaning out the toner recycler. Counters reset? Are all the dev tank gears OK and not stripped?
      Please do not PM me without asking first.

        Comment

        • Synaux
          Service Manager

          Site Contributor
          1,000+ Posts
          • Mar 2012
          • 1224
          #3
          Re: 601 undertoning

          Originally posted by minimerlin
          I take it that you carried out the usual set up procedures after you changed the dev etc as well as cleaning out the toner recycler. Counters reset? Are all the dev tank gears OK and not stripped?
          Yep, the normal adjustments were made in SM and reset counters.
          I will clean the recycler and check the gears probably tomorrow and report back.

            Comment

            • RRodgers
              Service Manager

              1,000+ Posts
              • Jun 2009
              • 1947
              #4
              Re: 601 undertoning

              Did you vac the sensor under the drum?
              Color is not 4 times harder... it's 65,000 times harder. They call it "TECH MODE" for a reason. I have manual's and firmware for ya, course... you are going to have to earn it.

                Comment

                • SmellsHot
                  Head Tech

                  500+ Posts
                  • Dec 2009
                  • 512
                  #5
                  Re: 601 undertoning

                  If you vacuumed out everything, cleared appropriate counters, cleaned sensors, and ran thru adjustments(correctly)......I would check LD1 and LD2....and adjust accordingly. After bumping them up a little bit run 50 double sided test pattern #12's.......This test pattern is my savior on these crappy engines.....
                  Everyone has the right to be stupid. Some people just abuse this privelage more than others

                    Comment

                    • Synaux
                      Service Manager

                      Site Contributor
                      1,000+ Posts
                      • Mar 2012
                      • 1224
                      #6
                      Re: 601 undertoning

                      It seems that it simply had not recovered the lost toner from an entirely empty toner bottle--I was lucky enough to see it sticking out of the trashcan when I arrived this morning.
                      I decided to do a series of Load Checks and worked like a charm.

                      It has a bit of a blotchy look with halftone tests and there is also a weird fade on the lead edge on 11x17 halftone (255) duplex only on one side for about a 1/4" but not really noticeable with other tests/prints.

                      Originally posted by SmellsHot
                      If you vacuumed out everything, cleared appropriate counters, cleaned sensors, and ran thru adjustments(correctly)......I would check LD1 and LD2....and adjust accordingly. After bumping them up a little bit run 50 double sided test pattern #12's.......This test pattern is my savior on these crappy engines.....
                      I actually forgot to mention that I played with the LD1/2 values, but it was only noticeable for its test prints. However, this reminds me that I need to bump the LD1/2 values back down a bit.

                      I didn't even know test pattern #12 existed. Apparently neither does Konica, the service manual in bold: "" Its not listed in my manual.
                      Beware of the nefarious test patterns!

                      Originally posted by RRodgers
                      Did you vac the sensor under the drum?
                      Yep, but if there are any more issues I will recheck it. Thanks

                        Comment

                        • RRodgers
                          Service Manager

                          1,000+ Posts
                          • Jun 2009
                          • 1947
                          #7
                          Re: 601 undertoning

                          You may have killed it. I never vac those things, just clean them off with a rag.
                          Color is not 4 times harder... it's 65,000 times harder. They call it "TECH MODE" for a reason. I have manual's and firmware for ya, course... you are going to have to earn it.

                            Comment

                            • Synaux
                              Service Manager

                              Site Contributor
                              1,000+ Posts
                              • Mar 2012
                              • 1224
                              #8
                              Re: 601 undertoning

                              Originally posted by RRodgers
                              You may have killed it. I never vac those things, just clean them off with a rag.
                              Oh, I answered your question generically as a question of cleaning it--I don't think I actually used a vacuum when I did everything--it was a few months ago.
                              I tend to not use a vacuum around electronics, thanks for the warning though!

                                Comment

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