| Pin | Signal | Pin | Signal | | 1 | Strobe | 19 | Ground | | 2 | Data Bit 0 | 20 | Ground | | 3 | Data Bit 1 | 21 | Ground | | 4 | Data Bit 2 | 22 | Ground | | 5 | Data Bit 3 | 23 | Ground | | 6 | Data Bit 4 | 24 | Ground | | 7 | Data Bit 5 | 25 | Ground | | 8 | Data Bit 6 | 26 | Ground | | 9 | Data Bit 7 | 27 | Ground | | 10 | Acknowledge | 28 | Ground | | 11 | Busy | 29 | Ground | | 12 | Paper Out | 30 | Ground | | 13 | Select | 31 | Prime | | 14 | Auto Feed XT | 32 | Error | | 15 | OSCXT | 33 | Signal Ground | | 16 | Signal Ground | 34 | NC | | 17 | Frame Ground | 35 | NC | | 18 | +5V | 36 | NC |
|  Pins 6 and 8 are jumped together and join Pin 20 on the other end (both ways) | | Pin | Signal | Pin | Signal | | 1 | Strobe | 19 | Ground | | 2 | Data Bit 0 | 20 | Ground | | 3 | Data Bit 1 | 21 | Ground | | 4 | Data Bit 2 | 22 | Ground | | 5 | Data Bit 3 | 23 | Ground | | 6 | Data Bit 4 | 24 | Ground | | 7 | Data Bit 5 | 25 | Ground | | 8 | Data Bit 6 | | | | 9 | Data Bit 7 | | | | 10 | Acknowledge | | | | 11 | Busy | | | | 12 | Paper Out | | | | 13 | Select | | | | 14 | Auto Feed | | | | 15 | Error | | | | 16 | Initialize | | | | 17 | Select Input | | | | 18 | Ground | | |
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