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Kyocera FS-680 User Manual

Page 121

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Parallel Interface

C-4

Pin

In/out

Description

26

—

Ground return

27

—

Ground return

28

—

Ground return

29

—

Ground return

30

—

Ground return

31

In

Ignored [nInit]

32

Out

Error*, returns error status if FRPO O2=2 [nFault]

33

—

—

34

—

Not connected

35

Out

Power Ready

36

In

Select In [NSelectIn]

[ ]: Signal names in the Auto mode (IEEE 1284). In the Auto mode, these signals are bi-directional.

Detailed descriptions of the signals follow.

Strobe* [nStrobe] (Pin 1)

A negative-going Strobe* pulse causes the printer to read and latch the data on the Data 0 [1] to Data

7 [8] signal lines.

Data 0 [1] to Data 7 [8] (Pins 2 to 9)

These eight signals form the data byte sent from the host computer to the printer. Data 7 [8] is the

most significant bit.

Acknowledge* [nAck] (Pin 10)

This negative-going pulse acknowledges the previous character received by the printer. Acknowledge*

pulses are sent only when Busy is low.

Busy [Busy] (Pin 11)

This signal is high when the printer is busy and low when it is able to accept more data. Every high-to-

low transition is followed by an Acknowledge* pulse.