Seiko MTP Series User Manual

2.6 THERMAL PRINT HEAD
Because the thermal print head in the MTP Series is a thin film type with high thermal efficiency, it has
an excellent print quality. The CPU determines which vertically placed heating units to energize, and
drives them with the thermal head driver (transistor).
2.6.1 Head Specifications
Type of Head B head G Head
Heating unit size
Dot 1
Dot 2
Dot 3
Dot 4
Dot 5
Dot 6
Dot 7
Dot 1
Dot 2
Dot 3
Dot 4
Dot 5
Dot 6
Dot 7
Dot 8
2.75
0.3
0.05
2.4
0.3
0.05
0.26
0.26
A rank 15.3 ± 1Ω 17.6 ± 1Ω
B rank 14.0 ± 1Ω 16.0 ± 1Ω
Resistance
value*
C rank 12.7 ± 1Ω 14.4 ± 1Ω
Head applied voltage DC 5.0 ± 1V (at FPC terminal)
Peak current
(in simultaneous drive of
all dots at 5.0 V DC)
3.0A max. 3.0A max.
Rated High sensitive thermal paper
2.30mJ
Standard thermal paper
2.50mJ
Head applied
energy
(24°C, 5.0V)
Max. 3.00mJ 3.00mJ
* The resistance value of each dot in the same head may have a 5% dispersion rate, and the average values
are indicated on the rank table above. Rank symbols are printed on the FPC.
2-10

Seiko MTP Series Specifications

General

Brand	Seiko
Model	MTP Series
Category	Printer
Language	English