I have a G4 Mac with the mentioned printer and all has been fine for the two appromimate years the two have been together. Recently, when I want to print, the mp780 window opens, as usual, the barber pole turns, as if information is transferring. The printer even says "printing." Then, in about 10 sec, "Jobs stopped" appears on the printer box and nothing prints. Pressing "Start job" merely repeats the routine. The printer will copy from its bed. My staff will get antsy in a few days if this is not fixed! Thanks for any help! Frank

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