Epson Stylus Color IIs Guide de l'utilisateur télécharger pdf (Page 93)

Signal

Return

pin Signal Direction Description

31 30

INIT IN When this signal goes LOW,

the printer controller is reset

to its default state when the

power is first turned on and

the print buffer is cleared.

This level is normally HIGH; its

pulse width must be more

than 50 µs at the receiving

terminal.

32 29

ERROR OUT This signal level goes LOW

when the printer:

1) Is out of paper

2) Is in an error state

3) Has no ink cartridge

installed

33 - GND - Same as for Pins 19-30

34 - NC - Not used

35 - +5 V OUT Pulled up to +5 V through

1 KΩ resistance

36 30 SLIN IN Not used

Notes:

The column heading “Direction” refers to the direction of signal flow as viewed

from the printer.

“Return pin” denotes the twisted-pair return pin 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.

All interface conditions are based on TTL level. Both the rise and fall times of each

signal must be less than 0.2 microseconds.

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.

Hudson User’s Guide

A5 size Appendix A

10-28-95 DR, pass 2-Rev1

Technical Specifications A-11

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Epson Stylus Color IIs Guide de l'utilisateur Page 93