Appendixes
2 Specifications
Interface
The printer is connected to a computer and prints labels according to the command from the computer. Two systems of interface connection to a computer are shown below.
1.Serial interface: RS-232C
System | Asynchronous serial interface |
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Connector | DSUB |
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Handshaking | XON/XOFF and CTS/DTR |
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Receive buffer | 32K bytes |
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size | Receiving data stops when the receive buffer reaches 2K bytes | |
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| and resumes receiving data when the receive buffer reaches | |
| 4K bytes |
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Baud rate | 300, 600, 1200, 2400, 4800, 9600, 19200, 38400 | bps |
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Bit length | 7- or |
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Stop bit | Fixed |
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| When printer is receiving data, stop bit is fixed at 1, and when | |
| printer is transmitting data, stop bit is fixed at 2. But computer | |
| can transmit or receive data, regardless of stop bit at 1 | or 2 |
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Parity | No |
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2. Parallel interface: In conformity with Centronics
System | |
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Connector | |
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Synchronous system | Strobe pulse |
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Handshaking | ACKNLG and BUSY signals |
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Signal level | TTL |
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