p4015 mysterious chronic jamming

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  • tmw
    Trusted Tech

    250+ Posts
    • Dec 2013
    • 259
    #1

    p4015 mysterious chronic jamming

    Started working on a machine that will print from 1 to 10 pages then stop. Always stops just into registration or up to the top of page sensor. Have already tried new rollers,paper drive assy., tray 2 solenoid,paper feed assy.(behind the manual tray), and registration assy. I updated the firmware. I took it apart to clean the top of page sensor, although it works in the sensor test. I don't see a replacement part listed. These were either new parts or from a known working p4015.
    This is connected to an optional third tray which works flawlessly. Manual tray works as well. When I started working on it, a lot of pages had to go through before it stopped. Now only a few at a time will run. Has anyone run across such an odd problem?
    Tags: None
    • theengel
      Service Manager

      1,000+ Posts
      • Nov 2011
      • 1784
      #2
      Re: p4015 mysterious chronic jamming

      Try swapping the DC controller.

        Comment

        • Wild Bill
          Senior Tech

          500+ Posts
          • Jul 2005
          • 774
          #3
          Re: p4015 mysterious chronic jamming

          Check the Tray 1 feed assy. On the jam inspection guide (Where it paper path wraps around) there is a tab that breaks so the spring no longer puts tension on that guide. It causes intermittent jams. Did you say you replaced Tray 1 feed assy?
          Izzy

            Comment

            • D_L_P
              Self Employed

              1,000+ Posts
              • Oct 2009
              • 1196
              #4
              Re: p4015 mysterious chronic jamming

              Take the torc limiter out of the tray and put the sep roller back in and see how it feeds.

                Comment

                • tmw
                  Trusted Tech

                  250+ Posts
                  • Dec 2013
                  • 259
                  #5
                  Re: p4015 mysterious chronic jamming

                  Thank you to all who took time to reply. I need to modify my post somewhat. I forgot to mention that I did replace the manual tray assy. I can't remember now if I changed the d.c. controller or not, but I don't have an extra one to play with at the moment. I also checked to see that the little gear between the feed rollers is still there. I will try the torque converter to see if there's any change. Thanks.

                    Comment

                    • MBT
                      Technician

                      50+ Posts
                      • Aug 2010
                      • 51
                      #6
                      Re: p4015 mysterious chronic jamming

                      You say you changed the rollers, but did you also change the white gear roller (RM1-0036), or just the blue rollers (RM1-0037)? The white gear roller will usually cause ghost jams, but it's worth a try, and it's cheap.
                      Also, I assume you blew out and checked the sensor behind tray 1, and the other sensors too, along with the top of page sensor that you already cleaned?
                      You can try testing with the cassette from tray 3.
                      The registration assembly is unlikely as tray 1 works fine.
                      You can try the tray paper drive and lift assemblies, but it's not as likely to be those.
                      If you solve it, can you let us know what the problem was?

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