Page B-7APPENDIX B — SCS/DCA COMMAND SUMMARY
Command: Back Space (BS)
Format: 1B
Printers: 3812, 5219
Action: Causes the current print position to be moved one
character to the left.
On the 3812, Back Space can cause the current print
position to move to the left of the logical left margin.
On the 5219, Back Space will not move to the left of the
logical left margin unless a Release Left Margin (RLM)
command has been received on the current print line.
IBMEMUL: Same as the 5219.
275EMUL: No operation.
Command: Interchange Record Separator (IRS)
Format: 1E
Printers: 3812, 4214, 5219, 5224, 5225, 5256
Action: Performs a Carriage Return (CR) and a Line Feed (LF).
If the current print position is on the last line of the
logical page, it performs an automatic Form Feed (FF),
and printing continues on the first line of the next page.
Most IBM host system print spoolers use the Form Feed
character to delimit and count pages. For this reason,
only Form Feed should be used to move to a new page.
Interchange Record Separator should not be used to
move to a new page.
IBMEMUL: Same as IBM.
275EMUL: No operation.