Epson 3000 Manuel D’Utilisation

Signal Return

Pin

Pin

Signal Direction

Description

35 - -

OUT

Pulled up to +5 V through 3.3 K 

resistance.

36 -

SLCT IN     IN

Internal fixing can be carried out with

Jumper J6. The level of this signal is

factory-set to LOW.

  Note:

l

The column heading “Direction” refers to the direction of

signal flow as viewed from the printer.

l

“Return” denotes the twisted-pair return, to be connected at

signal ground level. For the interface wiring, be sure to use a

twisted-pair cable for each signal and to complete the

connection on the return side.

l

All interface conditions are based on TTL level. Both the rise

and fall times of each signal must be less than 0.2

microseconds.

l

Data transfer must be carried out by observing the ACKNLG

or BUSY signal. (Data transfer to this printer can be carried

out only after receipt of the ACKNLG signal or when the

level of the BUSY signal is LOW.)

7-10

Technical Specifications