TransAct Ithaca 90PLUS Series, Programmer'S Manual

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Programmer's Guide PcOS Series 90PLUS Printer Control Codes
Miscellaneous Controls
11/07/05 Rev Q Page 75
5.13 Miscellaneous Controls
Function Clear print buffer
ASCII
[CAN]
Hexadecimal 18H
Decimal <24>
IPCL &%RP
EPOS
[CAN]
Description
The [CAN] command clears the print buffer and any unprinted information in the
printer received before the [CAN]. The CAN command does not restore default
conditions. It only clears the print buffers.
If the input buffer is not being processed (because the printer is out of paper or the
form is not inserted), the CAN command will not be processed until after the error is
cleared.
Function Query marker
ASCII
[ESC] q <n>
Hexadecimal
1BH 71H <n>
Decimal <27> <113>
IPCL none
EPOS none
Function Return a status to the host during processing
Response Serial/Parallel, IEEE 1284 Parallel, non-IEEE 1284
[SOH]<n>… not supported via PE
Description The command can be placed in the print data and, when processed by the printer,
will return a progress status marker. The value of <n> can be any 8-bit value. It
is returned to the host unaltered. The intent is for it to be a sequence number.
The command can be used to track the print progress of the printer or verify that
the data has been printed.
Note
The command is a line terminator and causes the printer to print all previous
data. If a normal line terminator (like a [CR]) is not supplied, right justify and
autocenter will not function correctly. All data will be left justified. [ESC] q does
not perform a [CR] or [LF] function.