Epson EPL-N1600 Reference Manual page 174

nInit/nReverseRequest
Compatibility mode:
Negotiation phase:
Reverse data transfer phase:
ECP mode:
nFault/DataAvail/nPeriphRequest
Compatibility mode:
Negotiation phase:
Reverse data transfer phase:
Reverse final phase:
ECP mode:
When a low signal is detected, the printer
is deemed to be BUSY until the low signal
is released.
Always high.
Always high.
Low when switching to reverse direction.
The peripheral device has permission to
drive the data signal only when this
signal is low and 1284active is high.
Low signal indicates that an error
occurred.
This signal is set high in order to
authorize 1284 compatibility. In nibble
mode, after the host sets HostBusy
(nAutoFd) high, this signal is set low in
order to indicate that the transmission
data is ready.
This signal is set low in order to indicate
to a nibble mode host that the
transmission data is ready. Afterwards,
this signal serves as nibble data bit 0 and
then 4.
Indicates whether or not the data is valid.
This signal is set low to request
communications with the host. Valid in
both forward and reverse direction.
Technical Specifications
A
A-11