CHAPTER 3
SPECIFICATIONS
3.1GENERAL SPECIFICATIONS
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| Table | General Specifications |
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Item |
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| Specification |
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| LTPF247 | LTPF347 | ||||
Print method |
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| Thermal dot line printing |
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Dots per line |
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| 448 dots |
| 640 dots | ||||
Printable dots per line |
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| 432 dots |
| 576 dots | ||||
Simultaneously activatable dots |
| 248 dots |
| 352 dots | |||||
per line |
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Resolution |
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| 8 dots/mm |
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Maximum print speed ∗1 |
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| 220 mm/sec |
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Print width |
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| 54 mm |
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| 72 mm | |||
Paper width |
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| 58 mm |
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| 80 mm | |||
Paper feed pitch |
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| 0.125 mm |
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Head temperature detection |
| Via a thermistor |
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Platen position detection |
| Via a mechanical switch |
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| Via a photo interrupter |
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Operating voltage range |
| 24V ± 10% |
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Vp line |
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Vdd line |
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| 5V ± 5% |
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Current |
| Print ratio ∗3 |
| Max. |
| Rated | Max. |
| Rated |
consumption used |
| 100% |
| 10.4A |
| 9.2A | 14.8A |
| 13.0A |
in driving the head |
| 50% |
| 5.2A |
| 4.6A | 7.4A |
| 6.5A |
(Vp) ∗2 |
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| 25% |
| 2.6A |
| 2.3A | 3.7A |
| 3.3A | |
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| 12.5% |
| 1.3A |
| 1.2A | 1.9A |
| 1.7A |
Motor drive (Vp) |
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| 0.55 A max. |
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Head Logic (Vdd) |
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| 0.1 A max. |
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Operating temperature range |
| 0°C to 50°C |
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(No condensation) |
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Storage temperature range |
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(No condensation) |
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∗1 Print speed changes according to the processing speed of the controller and print pulse width.
∗2
∗3
The current value indicates a momentary value obtained by calculation.
Calculation conditions
(1)“Max.” indicates the values when the voltage is 26.4 V, the head resistance is 630.5 Ω, and fixed
(2)“Rated” indicates the values when the voltage is 24 V, the head resistance is 650 Ω, and fixed
When printing equal to the print width is performed.