Parallel interface
The printer uses a bi-directional parallel interface for high-speed data transmission for the host
computer. This interface includes the buffers which are compatible with the IEEE 1284 standards.
The parallel interface provides support for the ECP and nibble modes in this standards. The
parallel interface mode can be changed by commanding Prescribe commands on a PC.
Selecting the parallel interface mode
To change the parallel interface mode, a PC running MS-DOS is needed. Connect the printer to
the PC via the parallel interface. Then, at the DOS prompt, type a FRPO O0 (the letter O and the
number zero) command as follows depending on the desired parallel mode:
To set the parallel interface mode ...
Normal
High-speed
1
Nibble
Automatic
1
Factory-set default.
Type at the DOS prompe ...
echo !R! FRPO O0, 0; EXIT; lpt1:
echo !R! FRPO O0, 1; EXIT; lpt1:
echo !R! FRPO O0, 5; EXIT; lpt1:
echo !R! FRPO O0, 70; EXIT; lpt1:
A-3
Printer interface
Parallel interface
FS-600/FS-680