
Chapter 9 Specifications
2 Parallel interface
Specifications |
|
Transfer method: | |
Synchronous: | Strobe pulse |
Handshaking: | ACKNLG and BUSY signals |
Signal level: | TTL |
Printer side: |
Pin assignment
Pin No. | Signal | Input/Output | Description |
|
|
|
|
1 | STROBE | Input | Strobe signal to read |
Input | |||
10 | ACKNLG | Output | |
11 | BUSY | Output | Signal to indicate printer ‘Busy’ |
12 | PERROR | Output | Signal to indicate paper out |
13 | SELECT | Output | Signal to indicate printer on line or off line |
14 | N.C | - | Not used |
15 | NC | - | Not used |
16 | GND | - | Ground |
17 | F.GND | - | Frame ground |
18 | N.C | - | Not used |
GND | - | GND | |
31 | INIT | Input | Printer reset |
32 | FAULT | Output | Signal to indicate printer error |
N.C | - | Not used | |
36 | N.C | - | Not used |
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