Epson EPL-N1600 Reference Manual page 172

PError/AckDataReq/nAckReverse
Compatibility mode:
Negotiation phase:
Reverse data transfer phase:
Reverse final phase:
ECP mode:
Set/Xflag
Compatibility mode:
Negotiation phase:
Reverse data transfer phase:
Reverse idle phase:
ECP mode:
High signal indicates that a feed jam
occurred in the paper supply section, or
that there is no paper in the paper tray.
High signal indicates whether or not
IEEE 1284 is supported or not.
Afterwards, this signal conforms with
NDataAvail (nFault).
In nibble mode, this signal serves as
nibble data bit 2 and then 6.
High until the host requests a data
transfer. Afterwards, this signal
conforms with NDataAvail (nFault).
Low signal authorizes nReverseRequest.
The host looks at this signal in order to
determine whether or not it as
permission to drive the data signals.
Always high.
Xflag indicates the extensibility flag.
Used to respond to the extensibility
request value sent from the host.
In nibble mode, this signal serves as
nibble data bit 1 and then 5.
Same as negotiation phase.
Same as negotiation phase.
Technical Specifications
A
A-9