hello, when you press the Interrupt button on the user interface, your 7775 will interrupt the job currently being procssed (copy OR print) to allow a user to make a copy. if the current job is one set of a 100 page print job for example, the machine considers it one job and will not interrupt. if it is set 4 of 100 of a print or copy job, the machine will interrupt after the current set, and allow a user to make copies. I hope this makes sense.
Margo Valens, Xerox Customer Trainer