The machine prints the first set of a 109 page document all duplexed just fine.
It does not matter how many times you send the print job the first set always prints out ok.
Then just a couple of sheets into the second set it jams.
The only jam code being logged in the SMC is "20. Duplex Transport Sensor 1" (paper is late) all other jam counters are zero.
I've replaced the duplex sensor in question but it's made no difference.
First set prints ok, second set jams... it does not make any sence to me at all.
I've tried different trays and paper stock and tried doing these sets using just the copier function instead of sending it as print job... the result is same.
Any ideas?
It does not matter how many times you send the print job the first set always prints out ok.
Then just a couple of sheets into the second set it jams.
The only jam code being logged in the SMC is "20. Duplex Transport Sensor 1" (paper is late) all other jam counters are zero.
I've replaced the duplex sensor in question but it's made no difference.
First set prints ok, second set jams... it does not make any sence to me at all.
I've tried different trays and paper stock and tried doing these sets using just the copier function instead of sending it as print job... the result is same.
Any ideas?

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