Our C710 keeps on getting paper jams. The paper is then always stuck in the compartment just after the fuser rollers. It looks like it does not make the 90 degrees turn in those cases. The paper always all crinkled up afterwards.
both a new transfer belt and fuser rollers were installed recently.
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Re: Lexmark Optra C710 keeps on having paper jams
Make sure the rear door is properly seated on it's hinges. Also look for any burs in the plastic guides that the paper might be catching. If you see any burs, try to smooth them out with a nail file or something.
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Check the fuser exit sensor flag. The sensor is on a p.c. board on the bottom of the fuser. Three things happen to it. Sometimes the board comes out of its clips and drops away from the sensor arm. The arm itself can be stuck or broken. The ribbon cable going to the board can come loose. If you release the latches and move the front cover out a little, it will be easier to get in to the board and cable.
1. Look for a piece of paper jammed in the rollers. 95% of the time that is what it is.
2. You have a paperclip or paper wad in a feed roller or gear.
3. The hard and easy way to find the jam is to feed a piece of paper and then before it feeds all the way through unplug power to the machine about the time where it usually jams.(several times may be necessary) Then follow the piece of paper to where it jams to find the location of the clogged paper.
The problem is that you have paper that contains too much moisture. (I bet it's been in the printer for a long time and has absorbed moisture form the atmosphere.. has it been rainy lately? When the moist paper gets heated in the fuser, the excess moisture turns to steam which then condenses back to water
on paper guides etc. Your diagnosis that the water is causing the jam is correct.. Try using some dry paper and it should be fine.
The fuser unit has a pape sensor. If, for some reason, the sensor is stuck, the printer will read a paper jam. Open the rear door and inspect the paper sensor located in the fuser assembly. See if it came out of it's original position or if there is something blocking it from moving freely.
To clear this error:
Power the printer off and let it stand for at least 30 minutes to allow the fuser to cool.
Remove the coating roller from the top of the fuser unit to reveal the orange fuser rollers underneath.
Check to see if any paper/transparency has become wrapped around the fuser rollers or jammed in or above the fuser unit itself.
Since some paper jams can be very difficult to see with the fuser installed, remove the fuser and check for paper/transparency jams under the unit as well. A jam in that area can cause 993 errors.
If there is no media jam and the error remains after the printer is restarted, try replacing the Oil Coating Roller (OCR). The OCR comes with the black toner cartridge. (It can also be purchased separately. Click here to do so.)
If the error remains after the OCR has been replaced. If that does not help I would highly recommend taking it back to the place you bought it from