Connector Signals and Functions
Pin |
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| Name | Function | |||||
1 |
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| Goes low for ≥0.5μs when active. | ||||
| STROBE | ||||||||||
2 |
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| DATA0 | These signals represent information for the 1st | |||||
3 |
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| DATA1 | through 8th bit of parallel data, respectively. | |||||
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| Each signal is HIGH when data is logical 1, |
4 |
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| DATA2 | ||||||
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| and LOW when logical 0. | |||||||
5 |
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| DATA3 | ||||||
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6 |
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| DATA4 |
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7 |
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| DATA5 |
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8 |
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| DATA6 |
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9 |
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| DATA7 |
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10 |
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| 10μs low to acknowledge receipt of data. | |||
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| ACK | |||||||
11 |
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| BUSY | Printer sets line low when ready to receive data. | |||||
12 |
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| PAPER | High when paper runs out. | |||||
13 |
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| SELECT | High when printer is | |||||||
14 |
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| AFXT | Printer ignores this signal. | |||||
15 |
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| Not used. |
16 | SIGNAL GND | Signal ground | |||||||||
17 |
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| Chassis ground (isolated from signal ground) | ||||||
18 |
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| +5V | +5V DC output from printer | ||||
19 - 30 |
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| GND | Twisted pair ground return | |||||
31 |
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| Printer is reset when this signal goes low. |
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| RESET | |||||||
32 |
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| Low when printing cannot continue due to error. | |
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| ERROR | ||||||||
33 |
| EXT GND | External ground | ||||||||
34 - 35 |
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| Not used |
36 |
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| Printer ignores this signal | |||
SELECT IN | |||||||||||
6
