I've seen plenty of J32-05 jams, and they've always been on the first side of duplex ... up until now.
On this machine, on SIMPLEX copies the paper stops between the fuser exit roller and the exit roller. It does not snag on the duplex gate ... the duplex gate does not even move. The jam occurs as the leading edge is reaching the fuser exit switch (it can be observed through the exit path). On the jammed page there's a little extra buckle between the fuser and the transfer. And the best part? You have to run 1075 consecutive LTR-R pages to see the first jam. Once it starts it will jam at 8 to 10 copy intervals.
Why LTR-R prints? It's a title company with all the usual settings: Mixed originals, LTR-R & LGL paper sizes (though there are a few J32-05's on LTR, once it starts). The customer runs over 150K pages per month, 1.8M currently, not massive but a good amount of volume.
I've swapped parts from our known working loaner, low count: fuser, fuser exit roller assy (includes sensor & flag), and fuser motor. The fuser drive assembly has no damaged gears, the drive coupler shifts smoothly and stays engaged when running. The fuser exit roller stays coupled/driven. If you let it rest for a while you can get another 1075 uninterrupted prints.
So here's my theory: I think the motor control circuit that drives the fuser motor is overheating, the fuser motor just stops turning, and the paper coasts to a stop or slows enough to show the jam. Since the fuser and fuser exit roller are propelled by a single motor, the whole group of rollers slows or stops together. My next task is to determine which board drives the fuser motor.
Has anybody had experience with this issue? Our highest count 808 is currently at 2.4M with no issues like this. =^..^=
On this machine, on SIMPLEX copies the paper stops between the fuser exit roller and the exit roller. It does not snag on the duplex gate ... the duplex gate does not even move. The jam occurs as the leading edge is reaching the fuser exit switch (it can be observed through the exit path). On the jammed page there's a little extra buckle between the fuser and the transfer. And the best part? You have to run 1075 consecutive LTR-R pages to see the first jam. Once it starts it will jam at 8 to 10 copy intervals.
Why LTR-R prints? It's a title company with all the usual settings: Mixed originals, LTR-R & LGL paper sizes (though there are a few J32-05's on LTR, once it starts). The customer runs over 150K pages per month, 1.8M currently, not massive but a good amount of volume.
I've swapped parts from our known working loaner, low count: fuser, fuser exit roller assy (includes sensor & flag), and fuser motor. The fuser drive assembly has no damaged gears, the drive coupler shifts smoothly and stays engaged when running. The fuser exit roller stays coupled/driven. If you let it rest for a while you can get another 1075 uninterrupted prints.
So here's my theory: I think the motor control circuit that drives the fuser motor is overheating, the fuser motor just stops turning, and the paper coasts to a stop or slows enough to show the jam. Since the fuser and fuser exit roller are propelled by a single motor, the whole group of rollers slows or stops together. My next task is to determine which board drives the fuser motor.
Has anybody had experience with this issue? Our highest count 808 is currently at 2.4M with no issues like this. =^..^=
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