hello, the C550 I'm working on has a slight grone and will make 10 to 15 copies then jam with a 1101 code. I swapped out the whole unit with the same occurrence. I see that one motor drives the vertical path roller and the other drives the pickup and feed rollers. I removed the separation assembly and the same noise is there! The noise and jamming does not happen in any other drawer. I checked the gears that drive off the motor and they seem fine! I'm thinking about trying another feed unit, this was a used assembly and did not test before taking it out there! any suggestions would be great! Thanks
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