General Purpose I/O - Microcom 324M Operator's Manual

Printer Commands
^A ^D Command
XX 123 Set TOF Retract Distance: When a TOF operation is in process, the paper
moves forward until the TOF sensor sees its leading edge. As soon as the
sensor sees the paper, the printer stops the forward motion of the paper and
begins to move the paper in reverse toward the print head. This command
sets how far the media is moved back into the printer after the TPF sensor
sees the leading edge. The valid range for the TOF retract distance is from 1
to 900.
5.5

General Purpose I/O

^A ^D Command
XX 110 General Purpose Command.
The printer has a special mode of communication for General Purpose control
environments. Communication is over the Ethernet port and uses the
following protocol.
The host sends a command byte to the Ethernet port every few milliseconds.
The printer's Ethernet interface will pass the command byte on to the printer
only when there is a change, i.e., when there is a new command.
The printer sends a byte of status data to its Ethernet interface using the same
data format, and will only send the data when there is a change in status. The
printer's Ethernet interface will send the printer status byte to the HOST every
few milliseconds.
This is the command byte configuration:
Command Byte From Host to Printer:
Bit #
0
1
2
3
4
5
6
7
The HOST only sends the command byte to the printer. The printer's Ethernet
interface receives this command byte from the HOST and tests it to see if it is
different from the previous command byte. If there is a change, then the
command byte is put into the "xx" of a ^Axx^D110 command and sent to the
printer. Valid values for "xx" are determined from the "Host to Printer" table
above.
The printer sends a status byte to the host every few milliseconds thru its
Ethernet interface. This status byte is sent whether there is a change of status
or not.
5-26
Function when = "1"
PRINT
PRINT TEST PATTERN
RESET
not used
not used
not used
not used
not used
324M/424M Operator's Manual - 880026-1001
Function when = "0"
DON'T PRINT
DON'T PRINT TEST PATTERN
DON'T RESET
Chapter 5