Intermec EasyCoder PC4, Руководство программиста

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Chapter 4 — ESim Commands
32 ESim for the PC4 and PF8 Printers Programmer’s Reference Manual
• the command must be followed by CR/LF to be correctly
interpreted.
• the reset command is only available during command input, that
is, not as data in .pcx graphics, soft fonts, or in format forms.
• the printer is unavailable for a short time during which all
commands sent to the printer are lost.
An ^@ command cannot be performed anywhere else, such as:
• during downloading of images, fonts, or forms.
• inside a variable input (?) or inside a string area (“”).
• when the input data buffer is full (> 8000 bytes).
? - Download Variables
Purpose: Use this command to signal to the printer that the data following are
variable or counter values.
Syntax: ?
Remarks: This command is used by the host system to send data representing
variables and/or counters to the printer after a stored for containing
variables and/or counters has been retrieved. The amount of data
following the question mark line must match exactly the total
number and order of variables and/or counters for that specific form.
Example:
FR"TEST7"
?
12345
abcde
•
Note:
An error report has higher priority than other commands and
is processed directly, both in position of normal command input
and in position of any error recovery.
Note: If the ? command is omitted, no variables or counter values
are printed.