Pin No. | Signal | Direction |
|
| Function |
|
|
Name |
|
|
|
| |||
|
|
|
|
|
|
| |
10 | KCK | OUT |
|
| |||
|
|
| Low pulse acknowledees receipt of data. | ||||
11 | BUSY | OUT | Low | when the printer | is ready | to accept | |
|
|
| data. |
|
|
|
|
12 | PAPER | OUT | Goes | High if the printer | runs out of paper. | ||
| OUT |
| Can | be held Low permanently | by turning | ||
|
|
| DIP switch |
|
| ||
13 | SELECTED | OUT | High | when the printer is | |||
N/C |
| Unused |
|
|
| ||
16 | SIGNAL |
| Signal ground. |
|
| ||
| GND |
|
|
|
|
|
|
17 | CHASSIS |
| Printer’s chassis ground, isolated from | ||||
| GND |
| signal ground. |
|
| ||
18 | + SVDC | OUT | External | SUDD~Yof + SVDC. |
| ||
GND |
| Twisted pair return signal ground level. | |||||
31 | m | IN | Low input resets the printer to its | ||||
|
|
| condition. |
|
| ||
32 | - | OUT | Goes | Low to signal that | the printer cannot | ||
|
|
| mint due to an error condition. |
| |||
33 | EXT GND |
| External | ground. |
|
| |
34, 35 | N/C |
| Unused. |
|
|
| |
36 | SELECT IN | IN | Always | High. |
|
|