Printer Control - Ithaca PcOS Series 80PLUS Programmer's Manual

Control Codes

Printer Control

Printer Control
Function
ASCII
Hexadecimal
Decimal
IPCL
Description
Function
ASCII
Hexadecimal
Decimal
IPCL
Function
Response
Description
Page 44
PcOS Series 80PLUS
Clear print buffer
[CAN]
18H
<24>
&%RP
This command clears the print buffer and any unprinted information in the
printer received before the [CAN]. If the input buffer is not being processed
because the printer is out of paper or a form has not been inserted, the CAN
command will not be processed until after the error is cleared. The CAN
command does not restore default conditions. It only clears the print buffers.
Query marker
[ESC] q <n>
1BH 71H <n>
<27><113>
none
Returns a status to the host when it is processed
Serial/IEEE 1284
[SOH]<n>...
This 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. This command can be used to track the print progress of
the printer or verify that the data has been printed.
NOTE: This 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 auto center will not function correctly. All data will be left
justified. [ESC]q does not perform a [CR] or [LF] function.
Rev B 4/13/99
Programmer's Guide
Parallel, non-IEEE 1284
Not supported via PE