Fujitsu DL6400Pro User Manual page 178

Pin Return Signal
number pin Compatible mode
number
11 29 Busy
12 30 Paper Empty
(P E)
13 — Select
(SLCT)
User's Manual
Table C–1 Parallel interface signals (Continued)
Direction
Nibble mode
Output
Printer Busy
Output
Ack Data Req
Output
X Flag
Description
Data cannot be received when this signal
is high. e.g., if the buffer is full, or an
error occurs.
Reverse data transfer phase:
Data bit 3, data bit 7, then forward path
(host to printer) busy status
This signal goes high if paper runs out.
Reverse data transfer phase:
Data bit 2, then data bit 6
Reverse idle phase:
This signal is set high until the host
requests data and, after that, follows the
Data Available signal.
This signal goes high when the printer is
selected (online), and goes low when the
printer is deselected (offline).
Reverse data transfer phase:
Data bit 1, then data bit 5
Parallel Interface
INTERFACE
INFORMATION
C-3