Seiko Instruments LTP F Series - Manual (Page 19)

3-1
CHAPTER 3
SPECIFICATIONS
3.1 GENERAL SPECIFICATIONS
Table 3-1 General Specifications
Specification Item
LTPF247 LTPF347
Print method Thermal dot line printing
Dots per line 448 dots 640 dots
Printable dots per line 432 dots 576 dots
Simultaneously activatable dots
per line 248 dots 352 dots
Resolution 8 dots/mm
Maximum print speed
∗1
220 mm/sec
Print width 54 mm 72 mm
Paper width 58 mm 80 mm
Paper feed pitch 0.125 mm
Head temperature detection Via a thermistor
Platen position detection Via a mechanical switch
Out-of-paper detection Via a photo interrupter
Operating voltage range
Vp line
Vdd line 24V ± 10%
5V ± 5%
Print ratio
∗3 Max. Rated Max. Rated
100% 10.4A 9.2A 14.8A 13.0A
50% 5.2A 4.6A 7.4A 6.5A
25% 2.6A 2.3A 3.7A 3.3A
Current
consumption used
in driving the head
(Vp)
∗2
12.5% 1.3A 1.2A 1.9A 1.7A
Motor drive (Vp)
Head Logic (Vdd) 0.55 A max.
0.1 A max.
Operating temperature range
(No condensation) 0 °C to 50°C
Storage temperature range
(No condensation) -20 °C to 60°C
∗1 Print speed changes according to the processing speed of the controller and print pulse width.
∗2 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 two-division printing is used.
(2) “Rated” indicates the values when the voltage is 24 V, the head resistance is 650 Ω, and fixed
two-division printing is used.
∗3 When printing equal to the print width is performed.