Parallel Interface; Port Pin Assignment; Parallel Interface Connection - Kyocera Ecosys FS-6700 Service Manual

A.1

Parallel interface

The printer uses a bi-directional parallel interface for high-speed data transmis-
sion 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 standard.

Port pin assignment

The pins of the parallel interface connector carry the signals listed below.
Table A. 1 Parallel port assignment
No.
1 nStrobe
2 Data1
3 Data2
4 Data3
5 Data4
6 Data5
7 Data6
8 Data7
9 Data8
10 nAck
11 Busy
12 PError
13 Select
14 nAutoFd
15 Not defined
16 Logic ground
Chssis ground
†
17
Peri-logic H
††
18
†. Grounded through a chip bead or resistor.
††. Rated current is 0.5 A (fused).

Parallel interface connection

Detailed descriptions of the parallel interface signals follow.
Table A. 2 Parallel interface signals—1/2
Signal
Strobe* [nStrobe]
Data 0 [1] to Data 7 [8] 2-9
Terminal Signal
(STBIN1/2)
(PAD0)
(PAD1)
(PAD2)
(PAD3)
(PAD4)
(PAD5)
(PAD6)
(PAD7)
(ACKOUT)
(BUSYOUT)
(PERROR)
(SELECT)
(AUTOFD )
NC
GND
(GND)
(VCC)
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.
These eight signals form the data byte sent from the host
computer to the printer. Data 7 [8] is the most significant
bit.
A-2
No. Terminal
19 Ground
20 Ground
21 Ground
22 Ground
23 Ground
24 Ground
25 Ground
26 Ground
27 Ground
28 Ground
29 Ground
30 Ground
31 nInit
32 nFault
33 Not defined
34 Not defined
35 Not defined
36 nSelect In
Meaning
Signal
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
(INIT)
(FAULT)
Pull-up (1kΩ)
NC
Pull-up (1kΩ)
(SELECTI)
FS-6700