any problems with doc finishers try an update first .had a machine 2 hours drive away the tech brought it back (df 770) the exit rollers were not turning on when copying .everything worked in diagnostics .i plugged into a showroom machine ,same fault .did a firmware update and it is now ok.what led me to the firmware update i had a df 790 a couple of days ago that was also doing weird things till i updated the firmware.

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