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Page 164 100-88002 Rev B
[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?
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.
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.