CHAPTER 3

SPECIFICATIONS

3.1GENERAL SPECIFICATIONS

 

 

Table 3-1

General Specifications

 

 

 

 

 

 

 

 

 

 

 

 

 

Item

 

 

 

 

Specification

 

 

 

 

 

 

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

 

248 dots

 

352 dots

per line

 

 

 

 

 

 

 

 

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

 

24V ± 10%

 

 

 

 

Vp line

 

 

 

 

 

 

Vdd line

 

 

5V ± 5%

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

25%

 

2.6A

 

2.3A

3.7A

 

3.3A

 

 

12.5%

 

1.3A

 

1.2A

1.9A

 

1.7A

Motor drive (Vp)

 

 

0.55 A max.

 

 

 

 

Head Logic (Vdd)

 

 

0.1 A max.

 

 

 

 

Operating temperature range

 

0°C to 50°C

 

 

 

 

(No condensation)

 

 

 

 

 

 

 

 

Storage temperature range

-20°C to 60°C

 

 

 

 

(No condensation)

 

 

 

 

 

 

 

 

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 , and fixed two-division printing is used.

(2)“Rated” indicates the values when the voltage is 24 V, the head resistance is 650 , and fixed

two-division printing is used.

When printing equal to the print width is performed.

3-1