e2555c printing with wavy prints in solid light grey blocks

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  • SalesServiceGuy
    Field Supervisor

    Site Contributor
    5,000+ Posts
    • Dec 2009
    • 7902
    #1

    e2555c printing with wavy prints in solid light grey blocks

    118k Black / 80k colour

    FW 2195

    Universal 2 print driver in both PCL 6 and PSL3.

    I replaced the CMYK Developers and all four drums. The CMYK grids and needle electrodes look like new and are all properly seated.

    When I print images in PDF on 20 lb bond paper, I am getting a vertical, wavy, moire effect in the solid light grey blocks in the background.

    Any text in the grey blocks looks good. Images without the grey background look good.

    Any ideas?
    Tags: background, blocks, cmyk, grey, images
    • sappa12
      Technician

      50+ Posts
      • Sep 2023
      • 51
      #2
      Re: e2555c printing with wavy prints in solid light grey blocks

      can you post a sample.
      did you check transfer belt or leaf grounding for ctr2 on side doors

        Comment

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 22752
          #3
          Re: e2555c printing with wavy prints in solid light grey blocks

          I have more than 100 database entries C01 (image quality), but none of them references "wavy" or "moire'". Maybe an image will jog my memory. =^..^=
          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

            • SalesServiceGuy
              Field Supervisor

              Site Contributor
              5,000+ Posts
              • Dec 2009
              • 7902
              #4
              Re: e2555c printing with wavy prints in solid light grey blocks

              For some unknown reason I am unable to upload PDF, JPEG or PNG files. I cannot copy/ paste. There is this kind of effect going from top to bottom in the image background just not as wide as this image.

                Comment

                • blackcat4866
                  Master Of The Obvious

                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 22752
                  #5
                  Re: e2555c printing with wavy prints in solid light grey blocks

                  If the file size that you are trying to upload >1MB you won't be successful, regardless of file type.

                  I would suspect the laser, with an image like this. =^..^=
                  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

                    • SalesServiceGuy
                      Field Supervisor

                      Site Contributor
                      5,000+ Posts
                      • Dec 2009
                      • 7902
                      #6
                      Re: e2555c printing with wavy prints in solid light grey blocks

                      Originally posted by blackcat4866
                      If the file size that you are trying to upload >1MB you won't be successful, regardless of file type.

                      I would suspect the laser, with an image like this. =^..^=
                      ... most of the image and text print very well it is just the background.

                      I resized the image to under 1 MB. I do not know if you can see the vertical blue lines across the image.

                      I am going to replace the 2nd transfer roller and clean any connections around it.
                      Attached Files
                      Last edited by SalesServiceGuy; 12-21-2023, 05:31 PM.

                        Comment

                        • blackcat4866
                          Master Of The Obvious

                          Site Contributor
                          10,000+ Posts
                          • Jul 2007
                          • 22752
                          #7
                          Re: e2555c printing with wavy prints in solid light grey blocks

                          Do you mean the uneven shading in the 30% gray halftone?

                          Based on this image, I'd suspect cyan developing ... perhaps damaged or worn gears, or seizing developer bearings. Definitely cyan something. =^..^=
                          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

                            • SalesServiceGuy
                              Field Supervisor

                              Site Contributor
                              5,000+ Posts
                              • Dec 2009
                              • 7902
                              #8
                              Re: e2555c printing with wavy prints in solid light grey blocks

                              Originally posted by blackcat4866
                              Do you mean the uneven shading in the 30% gray halftone?

                              Based on this image, I'd suspect cyan developing ... perhaps damaged or worn gears, or seizing developer bearings. Definitely cyan something. =^..^=
                              I was onsite today and the customer told me that after about 100 prints the problem had mostly gone away. I do not know maybe just lucky or the new developer needed more time to work its way around the developer hardware and loosen things up.

                              I printed the 11 x 17" CMYK test charts and they looked good.

                              I replaced the 2nd transfer roller and recalibrated the copier. I cleaned the two metal contacts in the same area.

                              They now consider the prints acceptable with some minor compromies.

                              The customer now has it in their mind that they will have to replace this copier in about a year. It is the last e2555c series in my fleet so I do not want to encourage the customer to change their mind. I made the customer aware that Toshiba Tec Japan is going to discontinue all support on this model in April 01 2024.

                              They are going to get a bill for aprox $1,000.00 in parts as the copier is more than five years old and the original maintenance contract has expired. The current contract excludes all developer compounds, HDDs and circuit boards.

                              They could have gotten a 100% new copier with Saddle Stitch finisher for $170.00 per month and a lower cost per print or about six months of parts payments they were just invoiced for. It is kind of like the resistance to buying a new car with lease payments or keep on paying to fix your old car.

                              The problem is they own this copier and it still looks almost like new.

                              I am going to give then a $100.00 cpc credit for all of the test prints made. I am encouraging them during this slow holiday time for them to play around with the PSL3 print drivers Image Quality tab/ General/ Halftone/ 1200 DPI and set as a Print profile.

                              For awhile there, the copier was printing unwanted artifacts (dots/lines) around the images in their PDF catalog but we changed some settings in the print driver to resolve that.

                              I also instructed them how to perfrom the 1200 DPI calibration and registration on the copier anytime they wanted to print their catalogs.

                              I will keep your Cyan observation in mind.

                                Comment

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