Epson ColorPage EPL-C8000 User Manual page 186

nSelectIn/IEEE1284active
Compatibility mode:
Negotiation phase:
Reverse data transfer
phase:
Reverse idle phase:
ECP mode:
GND
Twisted pair return signal.
CG
Connected to the printer chassis. This signal and GND are connected.
+5V
Pull up to + 5 V with 1 k .
A-14
Technical Specifications
Always low.
This signal is set high at the same time that
HostBusy is low in order to request 1284
mode.
This signal is set high to indicate that the bus
direction is from the printer to the host. This
signal is set low to terminate 1284 mode,
setting the bus direction from the host to the
printer.
Same as reverse data transfer phase.
Always high. This signal is set low to
terminate ECP mode and return to
compatibility mode.