5555----7777----3 Parallel interface ( Compliance )
3 Parallel interface ( Compliance )
3 Parallel interface ( Compliance )
3 Parallel interface ( Compliance )
(1) Data
8 bit parallel Positive logic input
(2) Control signal
Paper empty
Positive logic output
BUSY signal
Positive logic output
ACK signal
Negative logic output
Printer error signal Negative logic output
Select signal
Positive logic output
Strobe signal
Negative logic input
(3)Connector
57-40360
(DDK)
Table 7-2 Pin Assignments
Pin
No.
Input/
Output
Signal name
Pin
No.
Input/
Output
Signal name
1
Input
STROBE (Negative logic)
19
STROBE 0V
2
3
4
5
6
7
8
9
Input
D0
D1
D2
D3 DATA
D4
D5
D6
D7
20
21
22
23
24
25
26
27
D0
D1
D2
D3 DATA 0V
D4
D5
D6
D7
10 Output ACK (Negative logic)
28
ACK 0V
11 Output BUSY (Positive logic)
29
BUSY 0V
12 Output
Paper empty
(Positive logic)
30
Paper empty 0V
13 Output Select (Positive logic)
31
Input
Printer reset
(Negative logic)
32
Print error
(Negative logic)
33
0V
14
15
16
NC
34
NC
17
Frame ground (0V)
35
Pull up to 5V at 5.1k
ohm.
18
Pull up to 5V at 22 ohm.
36
NC
Signal level is TTL level
(4) Description of signals :
Paper empty
: Outputs with positive logic at “Paper empty”, “Paper jam”.
BUSY
: Outputs with positive logic during the data processing.
ACK
: Negative logic signal by the time of data input completion.
Printer error
: Outputs with negative logic by the time of error occurrence.
Select
: Outputs with positive logic when power is turned on.
Strobe
: A timing signal for synchronization for data.
Negative logic 1
.