ROHM KD2004-DC72A Technical data

Thick film thermal printhead

(with thermal historical control)

KD2004-DC72A

DC72 series has our own internally developed heat-history control function.
This product is best suited for applications which require 24 hours operation like factory production lines.

zApplications

High speed label printer
High speed bar code printer
High speed ticket printer
Various high speed terminal printers

zFeatures

1) Newly developed thick-film fast response thermal element and driver LSI with the function of thermal history control which is
added the future history control are employed for this series. It is possible to print with super high speed of 10 inches / s or
250mm / s.

2) 150km life realized by attributing durable new protection film.

3) New partial glaze construction makes it compatible with the thermal transfer application.

zDimensions (Unit : mm)

Max.45

Max.36

118

(7)

(3)

#2

#1

104 (Effective Print Width)

Dot #832

CONNECTOR A

Dot #1

#20

#19

CONNECTOR B

LABEL

Max.φ20

Max.5.5

#1#6

6.1±0.4
(5)

Max.12

3-M3 (Effective Depth 3)

(20.8)

25±0.5

φ3H10 Length 4
(Effective Depth 3)

95±0.3

80±0.3

12±0.2

40±0.3

(Effective Depth 3)

(19)

φ3H10

15±0.3

7.3±0.3

17.8±0.2

15.3±0.3

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2009.11 - Rev.A

C

Data Sheet KD2004-DC72A

zInner circuit

V

H

GND

V

DD

N.C.

/ STB2

/ STB1

/ RESET

CLKIN2

DI2

DO2

LKOUT2

CLKIN1

DI1

DO1

/ LOAD
START

INC

SEL2
SEL1

TM
TM

100µF×2

35V

0.1µF
50V

DOT #832

#832 #1#448#449

SHIFT

REGISTER

LATCH REGISTER

To Each IC

THERMISTOR
30kΩ B: 3950K

DOT #1

SHIFT

REGISTER

CONNECTOR

DI No.

DI2
DI1

CLK No.

CLKIN2
CLKIN1

DOT No.

832 to 449
448 to 1

DOT No.

832 to 449
448 to 1

/ STB No.

/ STB2
/ STB1

DOT No.
832 to 449
448 to 1

zPin assignments

CONNECTOR A CONNECTOR B

Circuit

/ RESET

START

DO1
DO2

TM

TM
/ STB2
/ STB1

CLKOUT2

CLKIN1

No.
1
2
3
4

CLKIN2 (CP)

5
6
7
8
9

Circuit

V

DD

V

DD

SEL2
SEL1

NC
DI2
DI1
INC

/ LOAD

No.

10

No.

11
12
13
14
15
16
17
18
19
20

1
2
3
4
5
6

Circuit
VH (COM)
V

H

(COM)

V

H

(COM)

GND
GND
GND

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.4

zCharacteristics

Parameter
Effective printing width
Dot pitch
Total dot number
Average resistance value
Applied voltage
Applied power
Print cycle
Maximum number of dots energized simultaneously
Maximum clock frequency
Maximum roller diameter
Running life / pulse life
Operating temperature

zData sheets

1.6
SLT : 0.82ms / line

1.4

1.2

1.0

0.8

0.6

OPTICAL DENSITY

0.4

0.2

0

0.00 0.05

Fig.2 Representative density curve

ENERGY (mJ/dot)

0.4

0.30 0.350.20 0.250.10 0.15

MAXIMUM ENERGY (mJ/dot)

Symbol Typical Unit

150/(1×10

Level5

104

0.125
832
550

24

0.77

0.490
832

8

φ20.0

5 to 45

Level6

8

)

Level1
Level2
Level3

Level4

−

−

−

Rave

V

H

PO

SLT

−

−

−

−

−

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0
0 0.40.2 0.8 1.00.6 1.2 1

SCANNING LINE TIME (ms/line)

Fig.3 Maximum energy curve

mm
mm

dots

Ω

V

W/dot

ms
dots
MHz

mm

km/pulses

°C

Data Sheet KD2004-DC72A

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2009 ROHM Co., Ltd. All rights reserved.

2009.11 - Rev.A

Notes

No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.

The content specied herein is subject to change for improvement without notice.

The content specied herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specications,
which can be obtained from ROHM upon request.

Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.

Great care was taken in ensuring the accuracy of the information specied in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.

The technical information specied herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other par ties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.

Notice

The Products specied in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, ofce-automation equipment, commu­nication devices, electronic appliances and amusement devices).

The Products specied in this document are not designed to be radiation tolerant.

While ROHM always makes ef forts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.

Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, re or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, re control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.

The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller,
fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of
any of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.

If you intend to export or ship overseas any Product or technology specied herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.

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