Interfaces
In the tables below, the column heading “Direction” refers to the direction of signal flow as viewed from the printer.
Parallel B Interface
The parallel B (IEEE
Pin | Direction | Compatibility | Nibble | ||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 | IN |
| nStrobe | HostClk | |||||
|
|
|
|
|
|
|
|
|
|
2 | IN | DATA1 |
| ||||||
|
|
|
|
|
|
|
|
|
|
3 | IN | DATA2 |
| ||||||
|
|
|
|
|
|
|
|
|
|
4 | IN | DATA3 |
| ||||||
|
|
|
|
|
|
|
|
|
|
5 | IN | DATA4 |
| ||||||
|
|
|
|
|
|
|
|
|
|
6 | IN | DATA5 |
| ||||||
|
|
|
|
|
|
|
|
|
|
7 | IN | DATA6 |
| ||||||
|
|
|
|
|
|
|
|
|
|
8 | IN | DATA7 |
| ||||||
|
|
|
|
|
|
|
|
|
|
9 | IN | DATA8 |
| ||||||
|
|
|
|
|
|
|
|
|
|
10 | OUT |
| nACK | PtrClk | |||||
|
|
|
|
|
|
|
|
|
|
11 | OUT |
| Busy | PrtBusy | |||||
|
|
|
|
|
|
|
|
|
|
12 | OUT |
| PError | AckDataReq | |||||
|
|
|
|
|
|
|
|
|
|
13 | OUT |
| Select | Xflag | |||||
|
|
|
|
|
|
|
|
|
|
14 | IN |
|
|
|
|
|
| ||
| nAutoFd | HostBusy | |||||||
|
|
|
|
|
|
|
|
|
|
15 | — |
| NC |
| |||||
|
|
|
|
|
|
|
|
|
|
16 | — |
| GND |
| |||||
|
|
|
|
|
|
|
|
|
|
17 | — |
| CG |
| |||||
|
|
|
|
|
|
|
|
| |
18 | OUT |
| Peripheral Logic High | ||||||
|
|
|
|
|
|
|
|
|
|
19 - 30 | — |
| GND |
| |||||
|
|
|
|
|
|
|
|
|
|
31 | IN |
| nlnit |
| |||||
|
|
|
|
|
|
|
|
|
|
32 | OUT |
| nFault | nDataAvail | |||||
|
|
|
|
|
|
|
|
|
|
33 | — |
| GND |
| |||||
|
|
|
|
|
|
|
|
|
|
34 | — |
| NC |
| |||||
|
|
|
|
|
|
|
|
|
|
35 | OUT |
| +5V |
| |||||
|
|
|
|
|
|
|
|
|
|
36 | IN |
| nSelectln | IEEE1284active | |||||
|
|
|
|
|
|
|
|
|
|