Service manual

Chapter 2 System Information
13
Parallel Port Connector
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Pin Number Signal Description Pin Number Signal Description
1 Strobe5 10 Acknowledge
b
2 Data bit 06 11 Busy
3 Data bit 1
a
12 Paper end
4 Data bit 2
a
13 Select
5 Data bit 3
a
14 Auto line feed
b
6 Data bit 4
a
15 Error1
7 Data bit 5
a
16 Initialize printer
b
8 Data bit 6
a
17 Select in
b
9 Data bit 7
a
18-25 Signal ground
a. All data bits are sent to a printer in an 8-bit parallel format.
b. The signal is active low.
Mini-DIN Connectors
12
43
56
Pin Number Signal Description
1 Data signal
2 Not used
3 Ground
4 Power (+5 V dc)
5 Clock signal
6 Not used