79 the book calls 79 a critical hardware internal printer error..and to turn off & back on.. Reseat boards, dimms, etc..
reload firmware, etc.
I've mostly found a 79 to be some sort of COMM problem between pronter & host, though.. bad line, wrong Protocol etc.
reload firmware, etc.
I've mostly found a 79 to be some sort of COMM problem between pronter & host, though.. bad line, wrong Protocol etc.