Appendix B: ^D Command Summary - Microcom 424 Operator's Manual

Appendix B: ^D Command Summary
5 NULLS + 01: The 5 NULL method commands are a way to pass commands to the
printer even when the printer is configured in binary compression mode.
The command is sent to the printer as HEX characters; 00 00 00 00 00
01 are sent to the printer in order to issue the command. This command
is used to request the printer's status and is very similar to the ^E
command. The biggest difference between this command and the ^E is
that when printers are configured for binary compression (D23 -SW3 bit
7), which is required if saving graphics, the ^E will not function. This
means that if the printer is going to be using binary compression, the 5
NULLs method should be used to request status instead of the ^E
command.
5 NULLS + 02: The 5 NULL method commands are a way to pass commands to the
printer even when the printer is configured in binary compression mode.
The command is sent to the printer as HEX characters; 00 00 00 00 00
02 are sent to the printer in order to issue the command. This command
is used to cancel pending jobs/commands and to remotely clear errors
returning the printer to an idle >READY< state. If the condition causing
the original error condition still exists, sending new jobs will cause the
printer to go back into an error condition. This command simply
provides the ability to remotely clear error conditions and return the
printer to a state that allows normal communication.
5 NULLS + 0F: The 5 NULL method commands are a way to pass commands to the
printer even when the printer is configured in binary compression mode.
The command is sent to the printer as HEX characters; 00 00 00 00 00
0F are sent to the printer in order to issue the command. This command
instructs the printer to exit the temporary binary mode switch. If a
printer has been configured to use binary compression mode using the
soft switch command (D23 - SW3 bit 7), the NULLs + 0F method will be
ignored when issued.
0F + 5 NULLS: The 5 NULL method commands are a way to pass commands to the
printer even when the printer is configured in binary compression mode.
The command is sent to the printer as HEX characters; 0F 00 00 00 00
00 are sent to the printer in order to issue the command. This command
provides a temporary switch into binary compression mode without
having to have the printer configured for binary compression (D23 -
SW3 bit 7) mode. This is helpful when placed just before a graphic file.
The printer will continue processing the data as binary data until
instructed to exit the temporary binary mode (5 NULLs +0F).
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