Paper Path Issue w/ DocuColor 5799

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  • bwalter

    Paper Path Issue w/ DocuColor 5799

    I'm hopeing someone might be able to help me with this. I'm an IT guy for a small company and we have an old DocuColor 5799. I'm getting a paper jam consistantly in the same place. I know enough about printers/copiers to have disassembled it proporly and pinpoint exactly where it is happening, and i'm hopeing that someone might be able to tell me a quick (or lengthy if necessary) fix.

    To give a background, shortly before this problem arose, someone got some card stock jammed in it, opened up the front, and attempted to pull the drum carriage out with a paper jam. I have since disassembled it and carefully removed all traces of paper that I could find.

    The copier has no errors on it, i hit the start button and the image is scanned and the four color toner drums rotate proporly to put the image onto the drum (from what i guess, this is the process). The paper is then pulled up from the tray below, or from the bypass tray, it goes through the first set of pickup rollers (controlled by knob "C" on the front). The second set of rollers (controlled by knob "B" on the front)is where the paper curves up to contact the drum. One of these rollers is metal, the other is rubber. It is right here where the paper james up. The paper gets all curled up in between the first and second rollers. I reconditioned the rubber on all the rollers so they are plenty sticky and it still does it, always in the exact same spot, though when I feed paper through manually using the knobs on the front, everything goes through smoothly.

    Some things i have observed in my troubleshooting that might help someone help me. There is a single metal roller with rubber rollers on opposite ends of it. This roller appears to move at some point in the process from near contact with the drum, to 1/2 inch or so away from the drum. This roller, from what I can tell as it has rubber rollers on either end that mate with rubber around the edge of the drums, should come in contact with the drum, but it doesn't on mine. Could this perhaps have something to do with it? because, as best I can tell, this is the next part of the paper path.

    Any help would be greatly appreciated, please feel free to e-mail me directly at bradley.walter@verizon.net if you have any additional questions that may help with my inquary.

    Thanks In Advance,

    Bradley D. Walter
  • techguy75

    #2
    First thing you want to do to see if its hitting anything would be to look at the lead edge of the paper and check and see if there are any bends in the middle or top or bottom of the lead edge where it might be contacting with something in the path. Next if everything is ok there you want to cheat the interlock on the front door and watch it as the paper passes through and watch that second set of rolls and see if they turn or not if there not you will have to check and make sure the gears are coming in contact and or if the motor/clutch connected to it is running.

    regards, Nick NCXI.com

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    • bwalter

      #3
      Thank you very much for your response. Shortly after I posted i discovered a small plug with 5 wires out of it had come loose from its outlet on the bottom of the drum drawer. I plugged it back in and it worked. Now though, every couple of pages that "roller" that moves back and forth gets stuck in the "near the drum" position, and I have to push it back, and restart the machine. Any suggestions?

      Thanks!!!

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      • techguy75

        #4
        The rollers that move back and forth is that in the finisher part which would mean there the offset rolls or is that inside the machine second do they just stop working all together and just stick in one place and does it stop in the exact same spot everytime if it stops in the same place everytime it could be a sensor triggering it to stop because its loose or a bad connection or it could be the board controlling that particular set of rollers.

        If it is in the different location each time it could be quite a few things it could be that the gear its riding on is chipped or missing teeth causing it to skip it could be the bearings are getting stuck and need to get lubricated and it could be catching on something such as some crammed paper or a paper clip or staple or something of that nature give it a try and lemme know.

        regards, Nick NCXI.com

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