
SRP-F310/312 
3-3-5  Printable Area
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 | Figure  | 
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| 1) 180dpi | 
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| Item | 
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 | Description | 
 | Remark | ||||
| a | 
 | 80±0.5mm(3.15 ±0.0197) | 
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| b | 
 | 0.141 (0.0056 ) | 
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| c | 
 | 72.2±0.2mm(2.83 ±0.0079) | 
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| d | 
 | 2.75mm~4.25mm | 
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| e | 
 | 2.75mm~4.25mm | 
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| Dots | 
 | 512 | 
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| Font 9X17 | 
 | 56 Character | 
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| Font 12X24 | 
 | 42 Character | 
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* ‘d’ & ‘e’ position can be shifted while printing according to the paper position.
2) 203dpi
| Item | Description | Remark | 
| A | 80±0.5mm(3.15 ±0.0197) | 
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| B | 0.125 (0.0049 ) | 
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| C | 80mm±0.2mm (2.83±0.0079) | 
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| D | 2.75mm~4.25mm | 
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| E | 2.75mm~4.25mm | 
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| Dots | 640 | 
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| Font 9X17 | 64 Character | 
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| Font 12X24 | 48 Character | 
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* ‘d’ & ‘e’ position can be shifted while printing according to the paper position.
3-3-6  TPH (Thermal Printer Head) Specification
1) 180dpi
| Item | 
 | Description | Remark | 
| Heat Element Structure | 2 Heaters / Dot | 
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| Number of Heat Element | 512 Dots | 
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| Heat Element Pitch | 0.141mm/dot, 7Dot/mm (180DPI) | 
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| Print Width | 72.2±0.2mm | 
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| Average Resistance | 800Ω ± 3% | 
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 | 1) | Resistance R25: 30kΩ ± 5% (At 25℃) | 
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| Thermister | 2) | B Value: 3950K ± 2% | 
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 | 3) | Temperature: - 40℃ ~ +80℃ | 
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 | Table  | 
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| Rev. 1.00 | - 20 - |