TransAct Ithaca 90PLUS Series Programmer's Manual page 98

Printer Control Codes
Printer Status Set/Inquire
Function
ASCII
Hexadecimal
Decimal
Function
Response
Description
Function
ASCII
Hexadecimal
Decimal
IPCL
Description
Page 86
PcOS Series 90PLUS
Inquire power-cycle status
[ENQ] <11>
05H 0BH
<5> <11>
Has the printer been power cycled since the last request?
Serial/Parallel, IEEE 1284
ACK <11> (06H 0BH)
Printer power has been cycled
since the last [ENQ] <11>.
NAK <5> (15H 0BH)
Printer has not power cycled
since the last [ENQ] <11>.
The first time after a reset, the command will return [ACK] <11>, after that
the command will return [NAK] <11>. The command allows the application
to determine if the printer has been power cycled and needs to be
reinitialized. The [ENQ] <10> command and the INIT signal on the parallel
port will both cause the printer to return power-up status.
MICR read cancel
[ENQ] <12>
05H 0CH
<5> <12>
none
The [ENQ] command is a real-time command that forces a MICR read command
to stop and return no data. The command can be used to get the printer out of a
read command. It has no other effect on the printer and is always acknowledged.
(See another inquire command for a description). If the read is complete before
the ENQ <12> is issued, the read command will operate normally.
Rev Q
Programmer's Guide
Parallel, non-IEEE 1284
PE low
PE high
11/07/05