Seiko Instruments LTP F Series User Manual

Table 3-1  General Specifications

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.