C258

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Kent
    Technician
    • Feb 2018
    • 17

    C258

    getting a random black line running top to bottom on letter portait, it goes completely edge to edge and not in the feed direction, all the consumables are at 50%, line was noticed when printing but I duplicated it with copying as well,, transfer belt was replaced
  • Synthohol
    Certified Konica Expert

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

    #2
    Re: C258

    can you post a sample?
    We know a thing or two because we've seen a thing or two.
    The medication helps though...

    Comment

    • lartis.aineias
      Technician

      50+ Posts
      • Dec 2020
      • 78

      #3
      Re: C258

      Check the Belt cleaner or bk drum cleaner!

      Στάλθηκε από το SM-G975F μου χρησιμοποιώντας Tapatalk

      Comment

      • tsbservice
        Field tech

        Site Contributor
        5,000+ Posts
        • May 2007
        • 7635

        #4
        Re: C258

        Weird. As Synthohol mentioned post a sample. Do the black line appears on color print?
        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

        • Kent
          Technician
          • Feb 2018
          • 17

          #5
          Re: C258

          black line shows up on everything

          Comment

          • blackcat4866
            Master Of The Obvious

            Site Contributor
            10,000+ Posts
            • Jul 2007
            • 22703

            #6
            Re: C258

            Image sample? I'm not going to speculate until I see the sample. =^..^=
            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

            • Kent
              Technician
              • Feb 2018
              • 17

              #7
              Re: C258

              Originally posted by Synthohol
              can you post a sample?
              Ill post samples after the weekend

              Comment

              • Kent
                Technician
                • Feb 2018
                • 17

                #8
                Re: C258


                SFishers Sp21010408420.pdfhere are samples

                Comment

                • Synthohol
                  Certified Konica Expert

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

                  #9
                  Re: C258

                  Looks like drum/charge roller.
                  You can print the 4 gradation test patterns to see which drum it is.

                  [edit]forgot the part about top to bottom, sorry.[/edit]
                  Last edited by Synthohol; 01-04-2021, 11:32 PM.
                  We know a thing or two because we've seen a thing or two.
                  The medication helps though...

                  Comment

                  • tsbservice
                    Field tech

                    Site Contributor
                    5,000+ Posts
                    • May 2007
                    • 7635

                    #10
                    Re: C258

                    Any non genuine consumables used? As I said lines perpendicular on paper feed direction are weird. You should run Stabilization followed with gradations and then print CMYK test patterns.
                    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

                    • copier tech
                      Field Supervisor

                      5,000+ Posts
                      • Jan 2014
                      • 7934

                      #11
                      Re: C258

                      Originally posted by Kent

                      [ATTACH]47765[/ATTACH]here are samples

                      Are you rebuilding the image units?
                      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

                      • Bix
                        Service Manager

                        1,000+ Posts
                        • Apr 2018
                        • 1421

                        #12
                        Re: C258

                        I have had a similar problem: is the transfer belt cleaning blade. If you take it apart, you can vacuum it with the vacuum cleaner. Warning: if the toner granules have made the groove, you must replace the transfer belt because the line will probably come back.

                        Comment

                        • blackcat4866
                          Master Of The Obvious

                          Site Contributor
                          10,000+ Posts
                          • Jul 2007
                          • 22703

                          #13
                          Re: C258

                          If you look at the color density where the line passes through the 40% fill squares, you'll see that the color density CMYK ratio stays the same as the rest of the box, just more dense.

                          If it were a primary transfer cleaning issue the lines would be composite black in color, so it's probably not primary transfer cleaning.
                          Since it affects all colors equally it must be a primary transfer or secondary transfer issue.

                          There might be a primary transfer drive issue causing a compression.
                          There might be variation in the transfer voltages.

                          If you had a like machine i would try the primary transfer belt, and second transfer roller each separately. I think you'll find that it's a primary transfer issue. I've seen something similar on a Kyocera Matsuri series, and a Toshiba Weisshorn 2H series. In both cases one of the electrical contacts was either out of position (not touching the facing roller or bushing), or I had left off a contact spring to the facing roller at the cleaning unit end.

                          Does any of that help? =^..^=
                          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

                          • Kent
                            Technician
                            • Feb 2018
                            • 17

                            #14
                            Re: C258

                            Originally posted by tsbservice
                            Any non genuine consumables used? As I said lines perpendicular on paper feed direction are weird. You should run Stabilization followed with gradations and then print CMYK test patterns.
                            Got there this morning and lines were gone ran some tests asked users and it has been fine,,Im not thoroughly convinced will wait and see

                            Comment

                            • tsbservice
                              Field tech

                              Site Contributor
                              5,000+ Posts
                              • May 2007
                              • 7635

                              #15
                              Re: C258

                              Originally posted by blackcat4866
                              If you look at the color density where the line passes through the 40% fill squares, you'll see that the color density CMYK ratio stays the same as the rest of the box, just more dense.

                              If it were a primary transfer cleaning issue the lines would be composite black in color, so it's probably not primary transfer cleaning.
                              Since it affects all colors equally it must be a primary transfer or secondary transfer issue.

                              There might be a primary transfer drive issue causing a compression.
                              There might be variation in the transfer voltages.

                              If you had a like machine i would try the primary transfer belt, and second transfer roller each separately. I think you'll find that it's a primary transfer issue. I've seen something similar on a Kyocera Matsuri series, and a Toshiba Weisshorn 2H series. In both cases one of the electrical contacts was either out of position (not touching the facing roller or bushing), or I had left off a contact spring to the facing roller at the cleaning unit end.

                              Does any of that help? =^..^=
                              Makes sense to me especially as OP mentioned of transfer belt replaced but wasn't specific about whole new genuine TBU or just aftermarket belt only.
                              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

                              Working...