| Associated |
|
|
|
Signal pin | return pin | Signal | Direction | Description |
|
|
|
| This pulse is active low and indicates that data |
10 | 28 | /ACK | OUT | sent to the printer has been received. The pulse |
|
|
|
| width must be larger that 10us. |
|
|
|
|
|
|
|
|
| When high, indicates that the printer cannot |
11 | 29 | BUSY | OUT | receive data. |
|
|
|
|
|
12 | 30 | PE | OUT | 1 – Paper end. |
|
|
|
|
|
|
|
|
| On line Out. When high, indicates operation in |
13 |
| OL OUT | OUT | remote mode. When low, indicates operation in |
|
|
|
| local mode. |
|
|
|
|
|
14,15,18,36 |
| NC |
| Not connected. |
|
|
|
|
|
16 |
| GND |
| Circuit ground. |
|
|
|
|
|
17 |
| Frame |
| Frame ground. |
|
|
|
|
|
| GND |
| Circuit ground. | |
|
|
|
|
|
31 |
| /INIT | IN | When low initializes the printer. It may be larger |
|
|
|
| than 50us. |
|
|
|
|
|
32 |
| /ERROR | OUT | Paper absence. |
|
|
|
|
|
33 |
| GND |
| Circuit ground. |
|
|
|
|
|
34 |
| NC |
| Not connected. |
|
|
|
|
|
35 |
| PULLUP | OUT | “Pulled Up” to +5V |
|
|
|
|
|
USB Interface
The USB interface is compatible with the Universal Serial Bus Specification 1.1. It is a 12 Mbps serial channel using the Bulk mode with a “B” receptacle as show below. The USB cable must have in one side an “A” plug to connect in the host, and in the other side an “B” plug to connect in the printer. The printer is
Type “B” Receptacle
2 1
3 4
Figure 11
Signal pin | Signal |
1 | NC |
2 | DATA+ |
3 | DATA - |
4 | GND |
Using the USB interface, the printer can be connected in the host even if both parts are powered. The first time you connect the printer in the host, the operational system will ask for the printer driver. Please download the printer driver from our website (www.bematech.com). For more details please contact your dealer.
13
