Pattern on prints shows up on black C454e

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  • positiveg
    Trusted Tech

    250+ Posts
    • Jun 2018
    • 299

    Pattern on prints shows up on black C454e

    So here were are guys
    Black drum new
    Black developer new
    Cyan drum new
    Developer installed two days ago the drums today.
    Now sure why I have those pattern prints to be honest. Could it be the IBT? Installed a new blade a few days ago when thought the blade was the issue.
    Really don't know what going on. This printer been so reliable

    Sent from my SM-G955F using Tapatalk
  • Phil B.
    Field Supervisor

    10,000+ Posts
    • Jul 2016
    • 22808

    #2
    Re: Pattern on prints shows up on black C454e

    Originally posted by positiveg
    So here were are guys
    Black drum new
    Black developer new
    Cyan drum new
    Developer installed two days ago the drums today.
    Now sure why I have those pattern prints to be honest. Could it be the IBT? Installed a new blade a few days ago when thought the blade was the issue.
    Really don't know what going on. This printer been so reliable

    Sent from my SM-G955F using Tapatalk

    brand NEW OEM dev unit?

    was it initialized ?

    OEM genuine toner?

    did you clean all electrical contacts before installing dev unit?

    how does the belt look?

    is the image on the belt like that

    is the image on the drums like that

    Phil B. ' The Dentist '

    Comment

    • Synthohol
      Certified Konica Expert

      Site Contributor
      5,000+ Posts
      • Mar 2016
      • 5463

      #3
      Re: Pattern on prints shows up on black C454e

      replace the white cap on the toner hopper and install a new DV unit and warranty this one.
      also check the slide door to see if toner can even enter the DV unit (corrugated tube).
      Attached Files
      We know a thing or two because we've seen a thing or two.
      The medication helps though...

      Comment

      • positiveg
        Trusted Tech

        250+ Posts
        • Jun 2018
        • 299

        #4
        Re: Pattern on prints shows up on black C454e

        see below thanks
        Originally posted by Phil B.
        brand NEW OEM dev unit? Genuine

        was it initialized ? ? installed and the machine picked it up as new

        OEM genuine toner? Nah Genuine

        did you clean all electrical contacts before installing dev unit? didn't check

        how does the belt look? kinda ok no marks really it is relatively new, was replaced a few months ago.

        is the image on the belt like that not sure will a stop print

        is the image on the drums like that will check

        Phil B. ' The Dentist '

        Comment

        • qbert69
          Service Manager

          1,000+ Posts
          • Mar 2013
          • 1152

          #5
          Re: Pattern on prints shows up on black C454e

          That looks like the auger pattern from the dev unit!!![emoji15]

          Sent from my SM-N950U1 using Tapatalk
          REACH FOR THE STARS!!!
          Konica Minolta Planetariums!
          https://www.konicaminolta.com/planet...gma/index.html

          Comment

          • BillyCarpenter
            Field Supervisor

            Site Contributor
            VIP Subscriber
            10,000+ Posts
            • Aug 2020
            • 14755

            #6
            Re: Pattern on prints shows up on black C454e

            It's possible that you have a faulty new DV unit. But I'd like to know if you got the exact same pattern with the old DV unit. If so, that would make me skeptical that the new DV is bad.

            Edit: I'd start with a couple of basic checks:

            - Make sure the mag roller is turning. You can do this by wiping off all the DV/toner from the mag roller and then running a copy and pulling the DV unit out to see if it's now covered. If not, you've got a broken gear somewhere or a clutch problem.

            - Check the DV bias voltage to make sure it matches what the manual says.
            Last edited by BillyCarpenter; 10-14-2020, 11:16 PM.
            Adversity temporarily visits a strong man but stays with the weak for a lifetime.

            Comment

            • positiveg
              Trusted Tech

              250+ Posts
              • Jun 2018
              • 299

              #7
              Re: Pattern on prints shows up on black C454e

              I actually csnt recall getting this pattern with the old developer unit. Good thing I didn't throw it away. In fact got the old drum too. But I think that old black drum might be an issue.
              When you say mag u mean the magenta developer correct?
              I don't get any issues with reds etc but I'll let yoy guys know for sure.
              This is crazy that it could be a brand new dev unit and getting this issue.


              Sent from my SM-G955F using Tapatalk

              Comment

              • blackcat4866
                Master Of The Obvious

                Site Contributor
                10,000+ Posts
                • Jul 2007
                • 22702

                #8
                Re: Pattern on prints shows up on black C454e

                Please measure: What interval on the pattern in millimeters? =^..^=
                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

                • BillyCarpenter
                  Field Supervisor

                  Site Contributor
                  VIP Subscriber
                  10,000+ Posts
                  • Aug 2020
                  • 14755

                  #9
                  Re: Pattern on prints shows up on black C454e

                  Originally posted by positiveg
                  I actually csnt recall getting this pattern with the old developer unit. Good thing I didn't throw it away. In fact got the old drum too. But I think that old black drum might be an issue.
                  When you say mag u mean the magenta developer correct?
                  I don't get any issues with reds etc but I'll let yoy guys know for sure.
                  This is crazy that it could be a brand new dev unit and getting this issue.


                  Sent from my SM-G955F using Tapatalk
                  No, I mean the magnetic roller on the black DV unit. It's the roller that you can see and it's coated with developer and toner. Take the black DV out and wipe off all the developer until there is none left. Reinstall the DV unit and make a copy. Take the DV out again and look at the magnetic roller. If it's not coated with developer you have lost rotation somewhere in the DV drive train.
                  Adversity temporarily visits a strong man but stays with the weak for a lifetime.

                  Comment

                  • Phil B.
                    Field Supervisor

                    10,000+ Posts
                    • Jul 2016
                    • 22808

                    #10
                    Re: Pattern on prints shows up on black C454e

                    Originally posted by positiveg
                    I actually csnt recall getting this pattern with the old developer unit. Good thing I didn't throw it away. In fact got the old drum too. But I think that old black drum might be an issue.
                    When you say mag u mean the magenta developer correct?
                    I don't get any issues with reds etc but I'll let yoy guys know for sure.
                    This is crazy that it could be a brand new dev unit and getting this issue.


                    Sent from my SM-G955F using Tapatalk
                    mag = magnetic roller.. every dev unit has one it transfers toner to the drum.

                    are you a tech? that is common lingo

                    Comment

                    • allan
                      RTFM!!

                      5,000+ Posts
                      • Apr 2010
                      • 5445

                      #11
                      Re: Pattern on prints shows up on black C454e

                      Could be the bushing.

                      That drum unit sucked the developer right out of the tank.
                      Had it where a defect on the charge grid will suck the developer out right on the edge of the drum.
                      Could be a dev bias contact issue.

                      Does it continuously add toner and and dump it into the waste box?

                      Also make sure the image process adjust setting are all on 0.
                      Like TCR level and image background adjust.
                      Whatever

                      Comment

                      • positiveg
                        Trusted Tech

                        250+ Posts
                        • Jun 2018
                        • 299

                        #12
                        Re: Pattern on prints shows up on black C454e

                        Just got back to the shop.
                        Staff threw out old dev unit, damn damn damn.

                        So I'll have to just stick with this.
                        I'll clean the connections and I'll also measure the space. Anything else I'll let the tech do.
                        Thanks again

                        Sent from my SM-G955F using Tapatalk

                        Comment

                        • BillyCarpenter
                          Field Supervisor

                          Site Contributor
                          VIP Subscriber
                          10,000+ Posts
                          • Aug 2020
                          • 14755

                          #13
                          Re: Pattern on prints shows up on black C454e

                          On a side note: As a rule of thumb, you should always print out test copies on arrival before you do anything. That means print out all of your solids and graduation scales. I also like to print out a blank (solid white) page. Always set those test prints to the side and then proceed to correcting any problem found. If you fail to do that and you introduce a problem to the machine, you'll never know because you didn't make the necessary test prints on arrival. Another reason for doing this is you may find a problem that wasn't reported by the customer and you can correct it while you're there.

                          Had you of done this, you could easily compare the old DV unit to the new one.
                          Adversity temporarily visits a strong man but stays with the weak for a lifetime.

                          Comment

                          • positiveg
                            Trusted Tech

                            250+ Posts
                            • Jun 2018
                            • 299

                            #14
                            Re: Pattern on prints shows up on black C454e

                            Originally posted by BillyCarpenter
                            No, I mean the magnetic roller on the black DV unit. It's the roller that you can see and it's coated with developer and toner. Take the black DV out and wipe off all the developer until there is none left. Reinstall the DV unit and make a copy. Take the DV out again and look at the magnetic roller. If it's not coated with developer you have lost rotation somewhere in the DV drive train.
                            Oh yeah yeah. Got you. Yeah would do that with my Xerox C75 too. Had something similar never thought of that seeing that this DV unit is brand new.

                            Sent from my SM-G955F using Tapatalk

                            Comment

                            • positiveg
                              Trusted Tech

                              250+ Posts
                              • Jun 2018
                              • 299

                              #15
                              Re: Pattern on prints shows up on black C454e

                              Originally posted by allan
                              Could be the bushing.

                              That drum unit sucked the developer right out of the tank.
                              Had it where a defect on the charge grid will suck the developer out right on the edge of the drum.
                              Could be a dev bias contact issue.

                              Does it continuously add toner and and dump it into the waste box?

                              Also make sure the image process adjust setting are all on 0.
                              Like TCR level and image background adjust.
                              Can't tell you of it dumps extra back into the waste toner box. But I'llake every attempt, with he tech of course to look at all the options presented

                              Sent from my SM-G955F using Tapatalk

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