Answer:

JUNKFAX

AnswerCrossword Clue
JUNKFAXSpam on an office machine
JUNKFAXSpam relative
JUNKFAXUnwanted printout
JUNKFAXUnwanted office transmission
JUNKFAXArrival that may annoy
JUNKFAXUnwelcome message
JUNKFAXIt's prohibited by the Telephone Consumer Protection Act of 1991