Connectors and Signals | ||||||
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Pin No. |
| Signal | Direction |
| Function | |
| Name |
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1 |
| GND | — |
| Shield Ground | |
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2 |
| GND | — |
| Frame Ground | |
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3 |
| TXD | OUT |
| This pin carries data from the printer. | |
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| (Return channel) | ||||
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4 |
| RXD | IN |
| This pin carries data to the printer. | |
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5 |
| RTS | OUT |
| This is SPACE when the printer power is ON. | |
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6 |
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| OUT |
| This is MARK when the printer is abnormal. |
| FAULT |
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| (Refer to Error Condition Alarm Mode *1.) | ||
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| Or there is a paper error. |
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7 |
| GND | — |
| Signal ground. | |
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8 |
| DTR | OUT |
| This printer turns this pin SPACE when | |
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| it is ready to receive data. | ||||
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Figure 7-3. Modular Jack Connector
*1 Error Condition Alarm Mode
If an error condition is detected during operation, the printer will stop printing and cause the FAULT signal to go MARK. All solenoides & motors will be
This printer can detect the following error coditions:
a.Motor Lock
b.Defective timing detector
c.
– 26 –
