11
Figure2-4.1.
The
The
The
The connection
connection
connection
connection figure
figure
figure
figure of
of
of
of printer
printer
printer
printer serial
serial
serial
serial interface
interface
interface
interface and
and
and
and PC
PC
PC
PC serial
serial
serial
serial interface
interface
interface
interface
2.5.2
2.5.2
2.5.2
2.5.2 Parallel
Parallel
Parallel
Parallel interface
interface
interface
interface connection
connection
connection
connection
The parallel interface of T58Z printer is 8 digit parallel interface, supporting
BUSY handshake protocol , and the interface socket used DB25 thread socket(male).
Parallel interface signal per pin
Pin
Signal
Signal Source
Function
1
nStrobe
H
Data is selected through spring
pulse, receiving data at decline.
2
DATA1
H
0------7 are data bits
3
DATA2
H
4
DATA3
H
5
DATA4
H
6
DATA5
H
7
DATA6
H
8
DATA7
H
9
DATA8
H
10
nAck
P
Input impendence “high” level
11
BUSY
P
“High” level indicates that printer
is “busy” now, can’t receive date
12
PE
P
“High” level indicates that print
paper-end
13
SEL
P
Input impedance “high” level
15
nERR
P
Input impedance “high” level
14﹑16﹑17
NC
Not frame ground
17-18
GND
Frame ground
H: means computer,
P: means printer
Refer to the parallel connection pattern interface signal time sequence as the
graphic 2-4.2
Summary of Contents for T58Z
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