PRO C5300s Yellow Backgrounding

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  • digicor
    Service Manager

    1,000+ Posts
    • Jul 2008
    • 1158
    #1

    [Misc] PRO C5300s Yellow Backgrounding

    after and ONLY after 20-30 booklets double-sided on heavy stock (80- pound) glossy / yes its set to thick 6 ( fire e will not allow to go to thick 7 or 8) but its fine, i igey Yellow shaded background then after say 5-8 more the backgrounding goes away, and another 15 or so are clean, then it come back.
    the Machine has only 6k total impressions, everything inside looks super clean, I changed charge roillers with another color, no help .
    it only does this on the thick stock, does not do it on any other stock, copy or print.
    Tags: None
    • slimslob
      Retired

      Site Contributor
      25,000+ Posts
      • May 2013
      • 37517
      #2
      Looking at the color laser process, it writes to no charge. For thicker stock, it automatically adjusts drum charge, development bias and transfer current. When the selected stock is not correct problems can occur. Fiery is nice but pretty much set in what it will let you do. Would it be possible to print one set on 28# plain bond paper without having it go through the finisher and then use that as the original to run the booklet sets from. That way you can use the tray settings to specify the actual type and thickness of the glossy stock.

        Comment

        • digicor
          Service Manager

          1,000+ Posts
          • Jul 2008
          • 1158
          #3
          thank you ,one other note the transfer belt had yellow haze pre cleaning unit , but i didnt have yellow haze on the PCU...

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            • slimslob
              Retired

              Site Contributor
              25,000+ Posts
              • May 2013
              • 37517
              #4
              Originally posted by digicor
              thank you ,one other note the transfer belt had yellow haze pre cleaning unit , but i didnt have yellow haze on the PCU...
              That indicates that all the yellow toner residual is being pulled to the belt. It also indicates that too much is being applied to the drum, drum charge too low or incorrect development bias. Check SP settings for those values for a thickness the Fiery allows vs. the actual thickness. You might be able to change the SP settings.

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                • digicor
                  Service Manager

                  1,000+ Posts
                  • Jul 2008
                  • 1158
                  #5
                  thank you

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                    • digicor
                      Service Manager

                      1,000+ Posts
                      • Jul 2008
                      • 1158
                      #6
                      You might be able to change the SP settings.
                      i have to ask where would i look to do this?
                      thank you

                        Comment

                        • slimslob
                          Retired

                          Site Contributor
                          25,000+ Posts
                          • May 2013
                          • 37517
                          #7
                          Originally posted by digicor
                          You might be able to change the SP settings.
                          i have to ask where would i look to do this?
                          thank you
                          Not having the service manual for that model I can't be certain but somewhere in the SP3XXX range.

                            Comment

                            • digicor
                              Service Manager

                              1,000+ Posts
                              • Jul 2008
                              • 1158
                              #8
                              yeah me either, ill look in the threes... thanks for all your help

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