Epson Multi-mode Data Controller MFJ-1278B - Manual (Page 259)

MFJ-1278B MULTI-MODE OPERATIONAL COMMANDS
PKTPIX ON/OFF Mode: Packet Immediate Command
PKTPIX is an immediate command that provides a method for the MFJ-1278B, to print
packet pictures, and other graphics format data transmitted by another station in the VHF
packet mode. The user must be connected to another station, with a printer connected to the
built-in printer port. Once connected you must go back to command mode with a CTRL-C,
and obtain the cmd: prompt. When the characters PK are typed the MFJ-1278B will display
the following message:
Entering transparent mode for packet-pix reception
The MFJ-1278B is now ready to print packet graphics. Packet pictures data transmitted from
the connecting packet station are received and data is sent directly to the printer attached to
the MFJ-1278, without any intervening modification. Therefore, all data MUST use the same
printer control codes that your printer uses. Typically EPSON format codes will be used.
Packet picture printing to the MFJ-1278B printer port requires you to first establish a packet
connection with the station who is going to send the picture. Note that you won't be able to
call up PKTPIX until the connection is made. You must have the printer powered and
selected before MFJ-1278B will let you use the PKTPIX command.
Once these conditions are met, all data received over the packet link are sent directly to the
printer.
Exit PKTPIX by using the escape-to-cmd: mode sequence for TRANSPARENT
connections. Use CTRL-C three times (default), or asynchronous BREAK.