HP Designjet 2500.3500cp Printer series - Manual (Page 310)

Reference
Interface Specifications
13-10
Interface Specifications
Below are the parallel interface specifications.
For specifications of the HP JetDirect Print Server (Network Interface), see the
JetDirect Print Server documentation supplied with this printer. For specifications
of the Optional HP JetDirect Print Server (Network Interface), see the JetDirect
Print Server documentation supplied with the Print Server Interface or consult your
dealer.
Parallel (IEEE-1284 compatible/Centronics) Interface
The connector on the printer is 36-pin
female.
Most existing parallel cables support Bi-
Tronics communication, but for use with
this printer, the cable must meet the
specification in this table.
Pin Wire/Signal Name Source
1 Strobe computer
2 … 9 D0 … D7 (data
lines) both
10 Ack printer
11 Busy printer
12 PError printer
13 Select (SelectOut) printer
14 AutoFd computer
16 GND
19 … 30 GND
31 Init computer
32 Fault printer
36 SelectIn computer