Lexmark 4049 ,continual paper jamming

I have continual paper jamming when paper is fed through the duplex unit. It appears to be a problem with the page being fed out of the duplex and onto the top of tray one. The right hand corner of the page always catches on the right side on the top of tray one pulling the page out of shape and jamming. The feed roller on top of tray one has been replaced but I don't see any means to adjust the paper path. Any ideas most appreciated.

常见故障问题解答 D.tony  2009-4-14 21:58:41 
    Is the paper getting to the roller? There are only two other things I can think of that would cause jams in that area. One is the metal guide on top of the tray. Make sure it's not bent. The other thing is caused by wear along the tray edges. The ribs on the sides of the tray that guide it into the printer can wear and let the tray sit too low. You can check this by using shims under the front edge of the tray to raise it back up. If this stops your jams then the tray itself needs to be replaced. Unfortunately the duplex trays are hard to find and are rather pricey when you do locate one.


常见故障问题解答 D.tony  2009-4-14 21:58:41 
    Is the paper getting to the roller? There are only two other things I can think of that would cause jams in that area. One is the metal guide on top of the tray. Make sure it's not bent. The other thing is caused by wear along the tray edges. The ribs on the sides of the tray that guide it into the printer can wear and let the tray sit too low. You can check this by using shims under the front edge of the tray to raise it back up. If this stops your jams then the tray itself needs to be replaced. Unfortunately the duplex trays are hard to find and are rather pricey when you do locate one.

常见故障问题解答 D.tony  2009-4-14 21:58:41 
    Is the paper getting to the roller? There are only two other things I can think of that would cause jams in that area. One is the metal guide on top of the tray. Make sure it's not bent. The other thing is caused by wear along the tray edges. The ribs on the sides of the tray that guide it into the printer can wear and let the tray sit too low. You can check this by using shims under the front edge of the tray to raise it back up. If this stops your jams then the tray itself needs to be replaced. Unfortunately the duplex trays are hard to find and are rather pricey when you do locate one.


常见故障问题解答 D.tony  2009-4-14 21:58:41 
    Is the paper getting to the roller? There are only two other things I can think of that would cause jams in that area. One is the metal guide on top of the tray. Make sure it's not bent. The other thing is caused by wear along the tray edges. The ribs on the sides of the tray that guide it into the printer can wear and let the tray sit too low. You can check this by using shims under the front edge of the tray to raise it back up. If this stops your jams then the tray itself needs to be replaced. Unfortunately the duplex trays are hard to find and are rather pricey when you do locate one.


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