A Question about developer and my observations

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  • cmitch
    Technician

    50+ Posts
    • Jul 2016
    • 53

    #1

    A Question about developer and my observations

    We've been printing a lot on the 1051 but I have seen an increase in toner usage. More than usual. This morning, I checked counts and noted developer is at 971,000 out of 1,000,000. I know many printers that try to beat all they can out of developer but I'm just not one of them. I remember some time ago, while it was still under service, we started getting a gritty dusting on the sheets. Developer was at 950,000 plus. After further study, we realized it was, indeed, developer beginning to dump. It was changed and grit went away. I guess I've never took note of increased toner usage but recovery box was changed Monday and it is already a tad less than half full. I am wondering if it is anyone else's experience that developer going bad can cause excess toner usage?
  • emujo2
    Service Manager

    1,000+ Posts
    • Mar 2017
    • 1580

    #2
    Re: A Question about developer and my observations

    If you are getting H toner then this is the issue..The majority of my 1100, 1052 and 61XX are only getting 1/3 to 1/2 of the copy volume prior to this crappy H toner..In many shops I am replacing developer at 25K (in many cases this is daily). E

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    • tsbservice
      Field tech

      Site Contributor
      5,000+ Posts
      • May 2007
      • 7968

      #3
      Re: A Question about developer and my observations

      Originally posted by emujo2
      If you are getting H toner then this is the issue..The majority of my 1100, 1052 and 61XX are only getting 1/3 to 1/2 of the copy volume prior to this crappy H toner..In many shops I am replacing developer at 25K (in many cases this is daily). E
      Nothing wrong but I'm wondering where is near 1 million compared to 25k
      Some of our office machines(20-40ppm speed) are nearing 500-600k developer life working with mostly H toner last year.
      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.

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      • cmitch
        Technician

        50+ Posts
        • Jul 2016
        • 53

        #4
        Re: A Question about developer and my observations

        I apologize but what does H toner mean?

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        • emujo2
          Service Manager

          1,000+ Posts
          • Mar 2017
          • 1580

          #5
          Re: A Question about developer and my observations

          The toner available since the KM Plant fire..

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          • emujo2
            Service Manager

            1,000+ Posts
            • Mar 2017
            • 1580

            #6
            Re: A Question about developer and my observations

            Originally posted by tsbservice
            Nothing wrong but I'm wondering where is near 1 million compared to 25k
            Some of our office machines(20-40ppm speed) are nearing 500-600k developer life working with mostly H toner last year.
            H toner for the office machines just meant 1/2 bottles..For production equipment the H was a different toner. It runs, but the quality is not there..I don't think the H toner had the same affect on the color production machines.

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            • cmitch
              Technician

              50+ Posts
              • Jul 2016
              • 53

              #7
              Re: A Question about developer and my observations

              So you're saying the toner that is in the pipeline now isn't 119,000 sheets yield at 5%? $179.00 a bottle???? Machine just stopped printing, telling me to exchange toner recovery bottle. It was full! I checked it this morning and it was a tad under half. I changed it Monday. No way I've run anywhere near 357,000 sheets since Monday. Not even a third of that. But I just put my 4th and last bottle in this morning. I'm coming up with 42,000 11 x 17 copies, mostly type, since Friday. 3 bottles of toner?? Wow. Def something wrong here.

              Comment

              • emujo2
                Service Manager

                1,000+ Posts
                • Mar 2017
                • 1580

                #8
                Re: A Question about developer and my observations

                Yes..if it's H toner we are seeing massive drops in impressions per bottle. I have a few machines it does not seem to affect, but anyone with graphics or a high %...it's really bad. Again this only seems to affect the B&W production TN 014, 015, 016, 017..All of this toner is exactly the same, just different bottles. E

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                • Woxner
                  Senior Tech

                  500+ Posts
                  • Jul 2011
                  • 838

                  #9
                  Re: A Question about developer and my observations

                  Its not just developer is high that can cause toner issues what is drum volume. This can also cause high toner useage. 25k is a bit much to be doing. 500k would be ok. Are you running the dev adjustments?

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                  • cmitch
                    Technician

                    50+ Posts
                    • Jul 2016
                    • 53

                    #10
                    Re: A Question about developer and my observations

                    Originally posted by Woxner
                    Its not just developer is high that can cause toner issues what is drum volume. This can also cause high toner useage. 25k is a bit much to be doing. 500k would be ok. Are you running the dev adjustments?
                    I'm not really sure what this statement means. We regularly get 900K+ out of developer with no issues. Drum is 544,000 out of 1,000,000. I usually change drums around 750k. Very few last to 1,000,000. This is a new issue to us. Never seen toner consumption like this before. I found a pre fire bottle of TN011. We're going to see how long that one lasts. I run drum and developer adjustments when I install. Never had to do either in mid flight except an occasional drum sensitivity adjustment.

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                    • Synthohol
                      Certified Konica Expert

                      Site Contributor
                      5,000+ Posts
                      • Mar 2016
                      • 5794

                      #11
                      Re: A Question about developer and my observations

                      Originally posted by cmitch
                      ...I run drum and developer adjustments when I install. Never had to do either in mid flight except an occasional drum sensitivity adjustment.
                      i hope you are not running the developer adjustments without changing the developer. the adjustment is for the precise TCR that is in a new bag(s) of developer.
                      once toner goes into the DV unit the adjustment is worthless and can\will cause extreme toner usage.
                      We know a thing or two because we've seen a thing or two.
                      The medication helps though...

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                      • cmitch
                        Technician

                        50+ Posts
                        • Jul 2016
                        • 53

                        #12
                        Re: A Question about developer and my observations

                        Originally posted by Synthohol
                        i hope you are not running the developer adjustments without changing the developer. the adjustment is for the precise TCR that is in a new bag(s) of developer.
                        once toner goes into the DV unit the adjustment is worthless and can\will cause extreme toner usage.

                        Comment

                        • blackcat4866
                          Master Of The Obvious

                          Site Contributor
                          10,000+ Posts
                          • Jul 2007
                          • 22997

                          #13
                          Re: A Question about developer and my observations

                          If you're at 950K on that developer, and you have doubts about it's quality, I think I'd change that developer now. Think of it this way ... you're changing the developer 5% early or you got 95% of yield.

                          Different toner batches can definitely affect toner density and image quality. Yes, it's common for the developer to tend to overtone or undertone as it reaches yield.

                          I wouldn't sweat the 5% early. Change that developer. =^..^=
                          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

                          • cmitch
                            Technician

                            50+ Posts
                            • Jul 2016
                            • 53

                            #14
                            Re: A Question about developer and my observations

                            Originally posted by blackcat4866
                            If you're at 950K on that developer, and you have doubts about it's quality, I think I'd change that developer now. Think of it this way ... you're changing the developer 5% early or you got 95% of yield.

                            Different toner batches can definitely affect toner density and image quality. Yes, it's common for the developer to tend to overtone or undertone as it reaches yield.

                            I wouldn't sweat the 5% early. Change that developer. =^..^=

                            Comment

                            • blackcat4866
                              Master Of The Obvious

                              Site Contributor
                              10,000+ Posts
                              • Jul 2007
                              • 22997

                              #15
                              Re: A Question about developer and my observations

                              It will confirm your suspicion about the toner if you change the developer, then the image degrades in about 25K prints. The good news is that just changing back to the better toner will bring back the quality (when the developer is new).
                              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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