Appendixes
Interfaces
This printer is connected to a computer and prints according to commands sent from the computer.
There are three types of computer interfaces, and these are connected to devices suited to each type of interface. The printer can also be connected to a computer by the optional Ethernet.
Serial Interface
Specifications
System | Start/stop asynchronous duplex communication |
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Signal level | |
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Baud rate | 2400, 4800, 9600, 19200, 38400,57600, 115200bps |
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Bit length | 7Bit, 8Bit |
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Stop bit | 1Bit, 2Bit |
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Parity | Odd, even, none |
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Connector | |
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Signal line and pin arrangement
Pin No. | Signal code | Signal name | Function |
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1 | FG | Protective | Protective grounding |
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| grounding |
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2 | TXD | Transmitted data | Signal line that transmits data from the |
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| printer to other devices |
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3 | RXD | Received data | Signal line that transmits data from other |
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| devices to the printer |
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4 | RTS | Transmission | Pull up to +5.4V through 3.3kΩ |
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| request |
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5 | NC | Not used | |
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6 | DSR | Data set relay | Signal line that is active when an external |
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| device can interface with the printer |
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7 | SGND | Signal line | Shows the ground level of the signal line |
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| ground |
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NC | Not used | ||
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14 | VCC | +5V | (FACTORY USE ONLY ) |
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NC | Not used | ||
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20 | DTR | Data terminal | Signal line that is active when an external |
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| relay | device can interface with the printer |
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NC | Not used | ||
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