Programming Codes
Ithaca
®
8000
Programmer’s Guide
Page 170
Rev D
100-06908
[ENQ] <4>
Inquire receipt paper out status
ASCII
[ENQ] <4>
Hexadecimal
05H 04H
Decimal
<5> <4>
Function
Receipt paper exhausted
Response
ACK <4> (06H 04H) Receipt paper is present
NAK <4> (15H 04H) Receipt paper is exhausted
[ENQ] <8>
Inquire cover open status
ASCII
[ENQ] <8>
Hexadecimal
05H 08H
Decimal
<5> <8>
Function
Cover open/closed status
Response
ACK <8> (06H 08H) The cover is closed
NAK <8> (15H 08H) The cover is open
[ENQ] <9>
Is the buffer empty? Clear the IEEE 1284 buffer.
ASCII
[ENQ] <9>
Hexadecimal
05H 09H
Decimal
<5> <9>
Function
The [ENQ] <9> command allows the host to know when the print buffer is
empty. If IEEE 1284 is active, the command also clears the response
buffer.
Response
ACK <9> (06H 09H) The buffer is empty.
NAK <9> (15H 09H) The buffer is not empty.
[ENQ] <10> Request printer reset
ASCII
[ENQ] <10>
Hexadecimal
05H 0AH
Decimal
<5> <10>
Function
Reset printer
Response
Serial
Parallel
ACK <10> (06H 0AH) No response
The command was accepted.
NAK <10> (15H 0AH)
The command was rejected.
Description
The ENQ <10>, EPOS DLE ENQ <n> commands and the INIT pin all
have the same effect and are referred to as reset commands. To prevent
data loss, the printer tries to finish printing the buffered data. When
operator intervention with the printer is required for any reason, data loss
results. The reset operation is saved until the printer goes idle.
In the case of a slip request command or any command that waits for the
operator, the printer is idle. If the printer is idle and a reset command is
received or pending, the printer resets, and the buffer clears. If the host
resets an operator intervention operation, any remaining buffered data is
cleared.
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