TransAct Ithaca 90PLUS Series Programmer's Manual page 96

Printer Control Codes
Printer Status Set/Inquire
Function
ASCII
Hexadecimal
Decimal
Function
Response
Function
ASCII
Hexadecimal
Decimal
Function
Response
Function
ASCII
Hexadecimal
Decimal
Function
Response
Page 84
PcOS Series 90PLUS
Inquire form clamp status
[ENQ] <7>
05H 07H
<5> <7>
Inquire whether the form clamp is closed
Serial/Parallel, IEEE 1284
ACK <7> (06H 07H)
The clamp is closed.
NAK <7> (15H 07H)
The clamp is not closed.
(It is in open or jam position).
Inquire cover open status
[ENQ] <8>
05H 08H
<5> <8>
Inquire whether the cover is closed
Serial/Parallel, IEEE 1284
ACK <8> (06H 08H)
The cover is closed.
NAK <8> (15H 08H)
The cover is open.
Is the buffer empty? Clear the parallel, IEEE 1284 buffer.
[ENQ] <9>
05H 09H
<5> <9>
The command allows the host to know when the print buffer is empty.
If IEEE 1284 is active, the command also clears the response buffer.
Serial/Parallel, IEEE 1284
ACK <9> (06H 09H)
The buffer is empty.
NAK <9> (15H 09H)
The buffer is not empty.
Rev Q
Programmer's Guide
Parallel, non-IEEE 1284
PE low
PE high
Parallel, non-IEEE 1284
PE low
PE high
Parallel, non-IEEE 1284
PE low
PE high
11/07/05