BH951 Black

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  • kenpio
    Trusted Tech

    100+ Posts
    • Dec 2015
    • 202
    #1

    [CQ] BH951 Black

    Hi guys,

    Have a BH951 with a little over 2m on it. I have just replaced the drum, developer, cleaning blades, charge coronas and grid. Right now they have 48k on them. The customer is saying that the black is not a real good black. I went out today and did the Auto Maximum Density Adj. and Auto Dot Diameter Adj. It improved it a little and they were sort of happy with it. But I see that the black is not black on the PCL test page. My question, I know that they will be calling and little down the road for the same thing. I am ordering a TCR sensor for the DV unit. Any thing else that I need to look at for this.

    Thanks
    KEN
    Tags: None
    • Synthohol
      Certified Konica Expert

      Site Contributor
      5,000+ Posts
      • Mar 2016
      • 5853
      #2
      Re: BH951 Black

      you cleared the counters and ran all the adjustments i assume when you changed the parts, i think there is a bit sw to increase the density if you want to go that route?
      We know a thing or two because we've seen a thing or two.
      The medication helps though...

        Comment

        • Woxner
          Senior Tech

          500+ Posts
          • Jul 2011
          • 852
          #3
          Re: BH951 Black

          also dont waste your time on the tcr sensor they are either good or bad no in between. if you did not reset the counters an did not do all the steps after replacement then that is more likely the cause

            Comment

            • kenpio
              Trusted Tech

              100+ Posts
              • Dec 2015
              • 202
              #4
              Re: BH951 Black

              Yes, when I did the drum and developer, I did do the package adjustment so all the counters were cleared.

              Thanks
              KEN

                Comment

                • allan
                  RTFM!!

                  5,000+ Posts
                  • Apr 2010
                  • 5462
                  #5
                  Re: BH951 Black

                  I had a case where the only fix for the density was to set the TCR soft switch to +1% that fixed the problem permanently.
                  You have to be sure its not a transfer issue.
                  Whatever

                    Comment

                    • Elmtech
                      Trusted Tech

                      100+ Posts
                      • Nov 2013
                      • 155
                      #6
                      Re: BH951 Black

                      Have you checked the laser unit for dirt?

                        Comment

                        • blackcat4866
                          Master Of The Obvious

                          Site Contributor
                          10,000+ Posts
                          • Jul 2007
                          • 23009
                          #7
                          Re: BH951 Black

                          Originally posted by Elmtech
                          Have you checked the laser unit for dirt?
                          Which laser unit? This machine uses LED exposure. =^..^=
                          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

                            • kenpio
                              Trusted Tech

                              100+ Posts
                              • Dec 2015
                              • 202
                              #8
                              Re: BH951 Black

                              Yes I have cleaned the print head. Maybe the transfer roller?

                              Thanks
                              KEN

                                Comment

                                • blackcat4866
                                  Master Of The Obvious

                                  Site Contributor
                                  10,000+ Posts
                                  • Jul 2007
                                  • 23009
                                  #9
                                  Re: BH951 Black

                                  Originally posted by kenpio
                                  Yes I have cleaned the print head. Maybe the transfer roller?

                                  Thanks
                                  KEN
                                  Typically the transfer belt assy will last 5M ... but maybe. It will cause poor fill, but it's obvious that its a transfer issue. =^..^=
                                  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

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