Microcom 428M Operator's Manual page 198

non-volatile system parameters (head parameter and soft switch commands).
It is recommended that this command is sent before updating the printer's
software to ensure that the printer's configuration and statistics are saved
before the update starts.
^A ^D COMMAND
145 List Commands: This command is used to generate a list of commands
containing a brief description of the LDSI code base that the printer uses.
Issuing a ^D145 or ^A0^D145 causes the printer to generate a list of
commands supported by the LDSI code base to communications port.
XX 146 Pre Stock-Out Distance: This command sets the distance in dots that the
PSO option uses to feed the media when the >INPUT 1< sensor detects an
out of media condition. If the length of the label happens to be larger than the
distance from the pre stock out sensor to the dot row (^D146 command) the
printer will not be able to completely finish printing the last label. Other than
this, the operation of the printer will be the same as above. The printer's
default distance is set to 1800 and issuing a "0" (^A0^D146) will cause the
printer to reset to this value. The maximum setting is 7200 and values above
this setting will be ignored.
X 147 Autoheader Command: The Autoheader command provides similar
functionality of other printer manufacturers that specify exact placement and
location of blackline media used for registration. This command is a specialty
media handling command that works when the correct media is used.
0 Execute AutoHeader on power-up only.
1 Execute AutoHeader on the next media loading.
2 Execute AutoHeader immediately (after delay, assumes that media is loaded.
3 Execute AutoHeader every time media is loaded.
1 148 Show Autoheader Values Command: After the auto header (^D147) has
been executed, the values that the printer will use for the header may be seen
using this command.
149 USB Image Print Mode: This is a special Image print mode protocol used
with the USB Port at higher Baud rates.
X 153 Feed Forward Distance: Moves motor in the forward direction by the X
amount specified in dots.
X 154 Feed Reverse Distance: This command will move the motor in the reverse
direction by the X amount, specified in dots.
X 155 Set Feed Speed: Sets the feed speed used with the D153 and D154
commands.
0 8.0 ips (inches per second)
1 7.5 ips
2 7.0 ips
3 6.5 ips
4 6.0 ips
12-18 428M Operator's Manual - 880028-0112