User's Manual

XEROX LASER PRINTING SYSTEMS TAPE FORMATS MANUAL 3-4
GRASP interspersed block tapes
GRASP can produce interspersed block tapes by using multiple
phantom printers. Byte 27 of each block (in the ID segment of each
block) contains the address of a phantom printer. To process these
requests, the user should set up a block selection/deletion function.