Tc Operator's Manual - - Microcom 438TC Operator's Manual

Chapter 5
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.
Bit #
0 (LSB)
1
2
3
4
5
6
7 (MSB)
The General Purpose Status byte mode of operation is enabled by Soft Switch
#5, Bit #8. These are the specific commands:
^ABxxxxxxx1^D25 Enable General Purpose Mode
^ABxxxxxxx0^D25 Disable General Purpose Mode
Note that the binary data entry mode is shown in these 2 commands. The
user must set the "xxxxxxx" values to agree with current settings in order to
avoid changing any of the other settings in Soft Switch #5.
Entering General Purpose Status Byte Mode
Sending the "Enable General Purpose Mode" command will set the printer up
to go into General Purpose mode. The printer will NOT go into General
Purpose Mode until a power cycle occurs to cause the data to be stored in

438TC Operator's Manual - 880050-0100

Function when = "1"
PRINT
PRINT TEST PATTERN
RESET
not used
not used
not used
not used
not used
Status Byte From Printer to Host:
Function when = "1"
IN RESET or PRINTING
ERROR
DOWNLOADING A FORMAT
FORMAT LOADED
not used
not used
not used
not used
Printer Commands
Function when = "0"
DON'T PRINT
DON'T PRINT TEST PATTERN
DON'T RESET
Function when = "0"
NOT BUSY
NO ERROR
FINISHED DOWNLOAD
NO FORMAT LOADED
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