| Pin | Name | Description | 
| 1 | /STROBE | STROBE | 
| 2 | D0 | Data Bit 0 | 
| 3 | D1 | Data Bit 1 | 
| 4 | D2 | Data Bit 2 | 
| 5 | D3 | Data Bit 3 | 
| 6 | D4 | Data Bit 4 | 
| 7 | D5 | Data Bit 5 | 
| 8 | D6 | Data Bit 6 | 
| 9 | D7 | Data Bit 7 | 
| 10 | /ACK | Acknowledge | 
| 11 | BUSY | Busy | 
| 12 | POUT | Paper Out | 
| 13 | SEL | Select | 
| 14 | /AUTOFEED | Autofeed | 
| 15 | n/c | Not used | 
| 16 | 0 V | Logic Ground | 
| 17 | CHASSIS GND | Shield Ground | 
| 18 | +5 V PULLUP | +5 V DC (50 mA max) | 
| 19 | GND | Signal Ground (Strobe Ground) | 
| 20 | GND | Signal Ground (Data 0 Ground) | 
| 21 | GND | Signal Ground (Data 1 Ground) | 
| 22 | GND | Signal Ground (Data 2 Ground) | 
| 23 | GND | Signal Ground (Data 3 Ground) | 
| 24 | GND | Signal Ground (Data 4 Ground) | 
| 25 | GND | Signal Ground (Data 5 Ground) | 
| 26 | GND | Signal Ground (Data 6 Ground) | 
| 27 | GND | Signal Ground (Data 7 Ground) | 
| 28 | GND | Signal Ground (Acknowledge Ground) | 
| 29 | GND | Signal Ground (Busy Ground) | 
| 30 | /GNDRESET | Reset Ground | 
| 31 | /RESET | Reset | 
| 32 | /FAULT | Fault (Low when offline) | 
| 33 | 0 V | Signal Ground | 
| 34 | n/c | Not used | 
| 35 | +5 V | +5 V DC | 
| 36 | /SLCT IN | Select In (Taking low or high sets printer on line or off line respectively) |