C454 prints think yellow

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  • positiveg
    Trusted Tech

    250+ Posts
    • Jun 2018
    • 299
    #1

    C454 prints think yellow

    Hi there guys. I'm getting some bad prints from the c454. I thinking could be yellow developer unit but I'm not sure please take a look.
    I've changed yellow drums. I've ran the printer without yellow toner so it would ask then out in a new yellow toner. I've added black developer powder and yellow
    All the developer units are over 70 percent but the yellow which is under 10 percent. So I'm wondering if it needs changing. Would really lioe to know thanks

    Sent from my SM-G780G using Tapatalk
    Tags: None
    • techsxge
      Senior Tech

      Site Contributor
      500+ Posts
      • Jan 2022
      • 660
      #2
      Re: C454 prints think yellow

      Please Post a picture of image quality so we can properly take a look.
      Best bet is to go into service mode, do gradiation pattern and run yellow on 64/128 in A3 format

        Comment

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 23008
          #3
          Re: C454 prints think yellow

          Try this one:
          Attached Files
          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

            • tsbservice
              Field tech

              Site Contributor
              5,000+ Posts
              • May 2007
              • 8019
              #4
              Re: C454 prints think yellow

              Originally posted by techsxge
              Please Post a picture of image quality so we can properly take a look.
              Best bet is to go into service mode, do gradiation pattern and run yellow on 64/128 in A3 format
              Either that but I prefer to stick to halftone pattern run for each color at 30 and 200 density.
              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

                • Synthohol
                  Certified Konica Expert

                  Site Contributor
                  5,000+ Posts
                  • Mar 2016
                  • 5839
                  #5
                  Re: C454 prints think yellow

                  have you cleaned the laser? with the wand i mean.
                  Last edited by Synthohol; 12-01-2022, 07:39 PM.
                  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
                      #6
                      Re: C454 prints think yellow

                      Originally posted by Synthohol
                      have you cleaned the laser? with the wand i mean.
                      Yep several times


                      Sent from my SM-G780G using Tapatalk

                        Comment

                        • femaster
                          Service Manager

                          1,000+ Posts
                          • May 2011
                          • 1508
                          #7
                          Re: C454 prints think yellow

                          Tried a different transfer belt? I ask because we had a similar issue just the other day on a C554e where it would put yellow all over the page during color prints/copies. I looked like a problem with yellow drum, but changing the drum didn't help. Tried a dev unit, same thing. Ended up being an issue with the roller for the yellow drum inside the transfer belt.
                          A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
                          My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

                            Comment

                            • positiveg
                              Trusted Tech

                              250+ Posts
                              • Jun 2018
                              • 299
                              #8
                              Re: C454 prints think yellow

                              Originally posted by femaster
                              Tried a different transfer belt? I ask because we had a similar issue just the other day on a C554e where it would put yellow all over the page during color prints/copies. I looked like a problem with yellow drum, but changing the drum didn't help. Tried a dev unit, same thing. Ended up being an issue with the roller for the yellow drum inside the transfer belt.
                              I have another transfer belt. Thanks I'll give it a try and see. Just need to get rhe tech in. We have a Xerox C75 and I can usually change that belt by myself. This 454 it's harder to get to and change on my own.
                              Thanks. I do see the yellow marking there on the belt but I keep wondering why is it happening though.


                              Sent from my SM-G780G using Tapatalk

                                Comment

                                • blackcat4866
                                  Master Of The Obvious

                                  Site Contributor
                                  10,000+ Posts
                                  • Jul 2007
                                  • 23008
                                  #9
                                  Re: C454 prints think yellow

                                  If you provided better samples maybe we could give you more accurate advice. =^..^=
                                  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

                                    • DelawareJim
                                      Technician

                                      Site Contributor
                                      50+ Posts
                                      • Jan 2008
                                      • 65
                                      #10
                                      Re: C454 prints think yellow

                                      I assume that the first sample picture is running landscape and it is a print. All of the colors drop off sharply towards that one direction. That would have to be something common to all colors...my first guess would be laser unit. Is this copier in a dusty/dirty environment? You may want to take out the entire laser unit and clean it/ inspect it. That would be my guess. Inspect the transfer roller on the inside of the door to make sure that unit is "springs" in and out ok. I have seen one of the two springs behind that assembly flipped out (not seated into its hole) which can give some weird transfer issues. Good luck and keep us posted. What country are you in?

                                        Comment

                                        • Luka
                                          Technician
                                          • Dec 2022
                                          • 11
                                          #11
                                          Re: C454 prints think yellow

                                          also check tcr levels in service mode - state confirmation - level history 1

                                            Comment

                                            • blackcat4866
                                              Master Of The Obvious

                                              Site Contributor
                                              10,000+ Posts
                                              • Jul 2007
                                              • 23008
                                              #12
                                              Re: C454 prints think yellow

                                              ... and still no diagnose-able samples. =^..^=
                                              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

                                                • tulintron
                                                  Senior Tech

                                                  Site Contributor
                                                  500+ Posts
                                                  • Jul 2014
                                                  • 668
                                                  #13
                                                  Re: C454 prints think yellow

                                                  Other colors seem to be lacking, not just yellow.
                                                  https://www.copytechnet.com/images/smilies/cool.pngNada como dia após diahttps://www.copytechnet.com/images/smilies/cool.png

                                                    Comment

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