Print quality problem C284

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  • ferro10
    Technician
    50+ Posts
    • Jun 2015
    • 95

    Print quality problem C284

    Hi everyone, I'm finding a decidedly strange problem on a Konica C284.
    Apparently the prints come out with rows and black shadows (see Attachment)
    The customer reports this:
    When printing on common white paper the problem almost never occurs.
    After performing a work on recycled paper the prints come out as an attachment.

    The BK drum is new and also the belt

    I close a hand to solve this problem I'm getting mad ..
    Attached Files
  • copyman
    Owner / Technician
    Site Contributor
    2,500+ Posts
    • Sep 2005
    • 4021

    #2
    Re: Print quality problem C284

    Originally posted by ferro10
    Hi everyone, I'm finding a decidedly strange problem on a Konica C284.
    Apparently the prints come out with rows and black shadows (see Attachment)
    The customer reports this:
    When printing on common white paper the problem almost never occurs.
    After performing a work on recycled paper the prints come out as an attachment.

    The BK drum is new and also the belt

    I close a hand to solve this problem I'm getting mad ..

    Rule # 1 don't trust what customer says about the recycled paper. You have to go there and see for yourself!
    Don't make sense only happens with recycled paper!

    Was drum a rebuilt or aftermarket? looks like the black drum cleaning blade flipped. If it's not doing it with color you can rule transfer belt out. Did you try another black drum? Or swap black chip with one of the color drums for troubleshooting purposes.



    Comment

    • ferro10
      Technician
      50+ Posts
      • Jun 2015
      • 95

      #3
      Re: Print quality problem C284

      Originally posted by copyman

      Rule # 1 don't trust what customer says about the recycled paper. You have to go there and see for yourself!
      Don't make sense only happens with recycled paper!

      Was drum a rebuilt or aftermarket? looks like the black drum cleaning blade flipped. If it's not doing it with color you can rule transfer belt out. Did you try another black drum? Or swap black chip with one of the color drums for troubleshooting purposes.



      The drum is an aftermarket but in the warehouse I also own an original drum and can replace it.
      The printer when it was verified I will have done more than 200 copies on normal paper without detecting problems after replacing the belt

      I'm going to check what happens and replace the drum with an original one and let's see what happens.

      Comment

      • copier tech
        Field Supervisor
        5,000+ Posts
        • Jan 2014
        • 7788

        #4
        Re: Print quality problem C284

        Originally posted by ferro10
        The drum is an aftermarket but in the warehouse I also own an original drum and can replace it.
        The printer when it was verified I will have done more than 200 copies on normal paper without detecting problems after replacing the belt

        I'm going to check what happens and replace the drum with an original one and let's see what happens.

        Another case of compatible parts causing issues.

        Go back with the original KM image unit & you should be OK.
        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

        • blackcat4866
          Master Of The Obvious
          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 22594

          #5
          Re: Print quality problem C284

          Originally posted by copyman

          Rule # 1 don't trust what customer says about the recycled paper. You have to go there and see for yourself!
          Don't make sense only happens with recycled paper!

          Was drum a rebuilt or aftermarket? looks like the black drum cleaning blade flipped. If it's not doing it with color you can rule transfer belt out. Did you try another black drum? Or swap black chip with one of the color drums for troubleshooting purposes.



          +1 on all of this.

          I always listen and consider what the enduser tells me.
          Then ... I make my own observations. Rarely, do I come to the same conclusions. =^..^=
          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

          • mojorolla
            The Wolf
            2,500+ Posts
            • Jan 2010
            • 2527

            #6
            Re: Print quality problem C284

            Originally posted by blackcat4866
            +1 on all of this.

            I always listen and consider what the enduser tells me.
            Then ... I make my own observations. Rarely, do I come to the same conclusions. =^..^=
            So true.
            Somewhere between what the end user tells us AND what the machine tells us is the truth, and ultimately the solution.


            Failing to plan is planning to fail!!!

            Comment

            • tsbservice
              Field tech
              Site Contributor
              5,000+ Posts
              • May 2007
              • 7448

              #7
              Re: Print quality problem C284

              Originally posted by mojorolla
              So true.
              Somewhere between what the end user tells us AND what the machine tells us is the truth, and ultimately the solution.


              I will second that. So glad machines today have many ways to tell the truth.
              I actually ask the customer, listen to the machine and make my decision.
              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

              • copyman
                Owner / Technician
                Site Contributor
                2,500+ Posts
                • Sep 2005
                • 4021

                #8
                Re: Print quality problem C284

                Here is one to add to our "smart" customers list. One of my customers calls about a week ago and buys a Kip Color Wide format (1,025 lbs) for a new building. I go there today to scope out the best way to "roll it in" when I deliver next week. When I get there the people at that location tell me the new office is 2nd floor !!!

                Wouldn't you think this is important enough to tell me ahead of time! Now i have to hire a mover with a robot to take up the steps ( $1,000 added to the invoice)
                Last edited by copyman; 10-22-2021, 12:59 AM.

                Comment

                • mojorolla
                  The Wolf
                  2,500+ Posts
                  • Jan 2010
                  • 2527

                  #9
                  Re: Print quality problem C284

                  Originally posted by copyman
                  Here is one to add to our "smart" customers list. One of my customers calls about a week ago and buys a Kip Color Wide format (1,025 lbs) for a new building. I go there today to scope out the best way to "roll it in" when I deliver next week. When I get there the people at that location tells me the new office is 2nd floor !!!

                  Wouldn't you think this is important enough to tell me ahead of time! Now i have to hire a mover with a robot to take up the steps ( $1,000 added to the invoice)
                  I have found that common sense ain't so common these days.

                  When I schedule a delivery I ask 3 questions:
                  1. any stairs, steps or thresholds going up or down to where the machine will be installed ?
                  2. how is it being connected to the network ? This comes from customer and Sales not understanding the difference between a wireless MFP and a wireless network. "NO, the machine is not wireless, but YES you will be able to print wirelessly once it is connected to the network". Just in case we have wifi extender's in the truck
                  3. Do you have IT onsite or a company that manages your network ? If not, approx how many PCs to network and are any of them Macs ? Do you know what version on Mac ? The second part of this question is usually followed by a long silence.

                  While every one of these questions is on our Sales installation form, common sense has taught me to ask the same questions again.


                  Failing to plan is planning to fail!!!

                  Comment

                  • romario
                    Trusted Tech
                    Site Contributor
                    100+ Posts
                    • Jun 2020
                    • 156

                    #10
                    Re: Print quality problem C284

                    Originally posted by ferro10
                    Hi everyone, I'm finding a decidedly strange problem on a Konica C284.
                    Apparently the prints come out with rows and black shadows (see Attachment)
                    The customer reports this:
                    When printing on common white paper the problem almost never occurs.
                    After performing a work on recycled paper the prints come out as an attachment.

                    The BK drum is new and also the belt

                    I close a hand to solve this problem I'm getting mad ..

                    It seems failure of black unit cylinder blade, intanta change of km cylinder unit



























                    thanks





                    Comment

                    • mojorolla
                      The Wolf
                      2,500+ Posts
                      • Jan 2010
                      • 2527

                      #11
                      Re: Print quality problem C284

                      Originally posted by tsbservice
                      I will second that. So glad machines today have many ways to tell the truth.
                      I actually ask the customer, listen to the machine and make my decision.
                      "it literally jammed a dozen times this morning"

                      Goes into log and reveals a single jam due to paper size not set right.

                      "
                      Well, that doesn't sound good, let me see what I can find"

                      Mumbles, lying sack of sh*^ under my breath

                      "
                      All set Sir, have a great day"

                      Drives 3 hours back to the shop






                      Failing to plan is planning to fail!!!

                      Comment

                      • copyman
                        Owner / Technician
                        Site Contributor
                        2,500+ Posts
                        • Sep 2005
                        • 4021

                        #12
                        Re: Print quality problem C284

                        Originally posted by mojorolla
                        I have found that common sense ain't so common these days.

                        When I schedule a delivery I ask 3 questions:
                        1. any stairs, steps or thresholds going up or down to where the machine will be installed ?
                        2. how is it being connected to the network ? This comes from customer and Sales not understanding the difference between a wireless MFP and a wireless network. "NO, the machine is not wireless, but YES you will be able to print wirelessly once it is connected to the network". Just in case we have wifi extender's in the truck
                        3. Do you have IT onsite or a company that manages your network ? If not, approx how many PCs to network and are any of them Macs ? Do you know what version on Mac ? The second part of this question is usually followed by a long silence.

                        While every one of these questions is on our Sales installation form, common sense has taught me to ask the same questions again.


                        This was kinda of my fault as well because I usually ask all the important questions. We had a few conversations about needing 220v outlet, etc. But they already have the same machine at home office so didn't need to discuss much since they were familiar with mach.

                        The confusion was they have a few buildings at this new location, all one story. No way I expected them to install above the garage which is only part 2 story. But guess I should of asked knowing how customers are!

                        Comment

                        • rrrohan
                          Service Manager
                          Site Contributor
                          1,000+ Posts
                          • Sep 2011
                          • 1968

                          #13
                          Re: Print quality problem C284

                          Originally posted by mojorolla
                          "it literally jammed a dozen times this morning"

                          Goes into log and reveals a single jam due to paper size not set right.

                          "
                          Well, that doesn't sound good, let me see what I can find"

                          Mumbles, lying sack of sh*^ under my breath

                          "
                          All set Sir, have a great day"

                          Drives 3 hours back to the shop






                          That's why I log into check CSRC log first

                          Sent from my Pixel 4 XL using Tapatalk

                          Comment

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