Epson 4100 manual Parallel Interface PIN-OUTS for Printer

Operator's Guide C-3

PARALLEL INTERFACE PIN-OUTS FOR PRINTER

The table that follows summarizes the pin assignments on the printer end of the parallel interface. The direction of the arrow indicates whether the signal is an input (&) to the printer or output (%) from the printer.

A twisted pair cable is often used for each signal in the interface, and the connection must be completed on the signal return side. To prevent noise, use cables that are shielded and connect the shield to both the computer and printer chassis.

Using fewer connections than shown in the table may prevent the computer from controlling some printer functions. 36-wire cables are recommended.