KF3003-GD31A
KF3003-GD31A is Compact high speed thick film thermal printhead manufactured by ROHM.
Features
1) The use of a special partial glaze and the latest heating element structure, along with new high-density driver chips that can accept big current, has allowed ROHM to achieve print speeds of 200mm/s with using thermal history control, the fastest in its class. 2) One rank resistance value of 1250Ω ± 3% eliminates the inconvenience of rank selection. 3) 2-inch, 3-inch and 4-inch series are available.
!External dimensions (Units : mm)
91 81.312 (EFFECTIVE PRINT WITH) (4.844) DOT #960 MAX. 20 DOT #1 5.1±0.4 4±0.2
2.6±0.1
No.15 CONNECTOR B
No.1
No.15 CONNECTOR A
(10.2)
5±0.2
81±0.2
2-M3 EFFECTIVE DEPTH 3
5.1±0.1
φ1
No.1
1/4
Printheads
!Equivalent circuit
VH GND DOT #960 DOT #1 VH GND
STB1
STB4
STB2
STB3
LATCH REGISTER DI2 DO2
LAT CLK DO1 DI1
SHIFT REGISTER
SHIFT REGISTER
TM TM
THERMISTOR 30kΩ B:3950
CONNECTOR B
CONNECTOR A
STB No. 1 2 3 4
Dot No. 1 ∼ 192 193 ∼ 448 449 ∼ 704 705 ∼ 960 dots / STB 192 256 256 256
DI No. 1 2
Dot No. 1 ∼ 448 449 ∼ 960 dots / STB 448 512
Fig.1
2/4
Printheads...