
All specifications are subject to change without notice
MOBILE PRINTER
MODEL : LK-P20B

RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTION

2
Table of Contents
1.
Unpacking
3
2. Product overview
4
3. Usage and Installation
5
3-1. Control panel usage 5
3-2. Battery Installation 6
3-3. Charging battery 7
3-4. Battery charger usage
(Optional)
8
3-5. Usage of Cigar Jack for charging
(Optional)
9
3-6. Battery removal 10
3-7. Belt Clip usage 11
3-8. Loading the media. 12
3-9. Loading the media.
(Optional)
13
3-10. Leather case usage
(Optional)
14
3-11. Self Test 15
3-12. MSR usage
(Optional)
17
3-13. IC CARD usage
(Optional)
18
4. Peripherals Connection
19
4-1. Bluetooth Connection 19
4-2. Interface Cable Connection 20
5. Specification
21
6. Setting up the software
23

5
3-1 Control panel usage
Button
Name
function
Power
button
This button is used to turn the printer on and off.
When the printer is off, press this button for approximately 3 seconds
and it will turn on the power. When you press this button in a state
that the printer is on, the printer will turn off.
Paper
Feed
Button
Paper output can be done manually by pressing this button.
Additionally, self-testing and Hexadecimal Dumping can be
processed..
1. Refer to “3-10” for self test information.
2. Refer to the service manual regarding Hexadecimal Dumping.
Battery
Status
Lamp
1. If the Batt, LED are Lit, the battery is fully charged.
2. If you can hear beeping sound and LED light is turned off, it means
that the battery is at the lowest level.
3. If the battery is not charged at all, the printer turns off
automatically.
Error
Lamp
If the red light is turned on, it means there is no paper roll or the
paper cover is open.
3. Usage and Installation

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3-2 Battery Installation
1. Align battery hook as shown in the picture
2. Push the battery into the printer until it locks in place.
NOTE
As the battery is not charged at the time of your purchase, charge the
battery prior to using the printer
(Battery charger or Cradle can be used to charge)
Hook

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3-3 Charging battery
NOTE
1. Unless the exclusive charger is used provided by the manufacturer, the printer
can be damaged, and the manufacturer is not liable for the consequential damage.
2. Before removing the battery, make sure that power is turned off.
3. Printer does not work in the status of being connected with charger only.
4. The battery should be installed to operate printer.
5. While charging, do not turn on the power.
6. Do not operate the print while charging the battery.
7. Do not connect the charger while the printer is operated.
1. Be sure that the printer is turned off
2. After open the DC JACK cover, insert DC JACK into the printer.
3. Plug the power code to electrical outlet.

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3-5-1 The status of lamp in charging
Status charging charging complete
Charging Lamp
Red
Green
NOTE
In the case the battery is not fixed properly in the holder, the red lamp will be
blinking, Then, extract and reinsert the battery.
1. Insert the battery into the battery holder as shown above
2. Connect the DC JACK to the power electrical outlet.
3. Once the charging is completed, remove the battery from the holder.
3-4 Battery charger usage
lamp
Optional

9
Connect the car cigar JACK charger into the printer or battery holder.
3-5 Usage of Cigar Jack for charging
Printer
Battery holder
Optional

10
3-6 Battery removal
1
2
Rotate the belt clip as shown
Remove the battery as shown

11
3-7 Belt Clip usage
Insert screw into belt clip.
Tighten the screw with driver as shown
.
1
2

12
3-8 Loading the media.
1 2
3
Press the cover open button and open
Place the paper roll as shown.
Make sure the paper is placed in
right direction.
Pull a short length of paper out of
the printer and close the cover.

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3-9 Shoulder Strap Usage
1 2
3
4
Insert the strap into the hook on
the printer.
Place the end of strap into the hook of
shoulder strap.
After pulling out the end of strap
tightly, put it into the clip to be
fastened.
Fasten the strap in the opposite side
with the sample way.
Optional

14
1 2
3
4
3-10 Leather case usage
Open the leather case
Close the Velcro and stick the cover.
Place the printer into the leather
case
Fasten to the belt by using the clip
at the rear of the leather case
Optional

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1 2
3
NOTE
Turn off the power pressing the
power button for approximately
3 minutes.
The printout is produced.
While you are pressing the FEED
button, press the power button
3-11 Self Test
1. To print ASCII pattern additionally,
press the Feed button once more
2. After printing ASCII pattern, the
self test will be finished automatically.
3. If the Feed button is not pressed
to print ASCII pattern, self test will be
finished automatically after 30 seconds.

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When the printer is installed initially or when you face a problem, you can run the
self test and check the information about
-Control Circuit, Mechanism, Print Quality, ROM Version
After checking with self-test and no issues are found, you can examine other
devices and software. This function is working independent of devices and software.
●
Motor protection from being overheated
The motor should be stopped and cooled about more than 30 seconds after
continuous printing 1.5 meter

17
Insert and swipe the card in the direction of the arrow as shown in the
picture.
3-12 MSR usage
Optional

18
3-13 IC CARD usage
Optional
Insert the card in the direction of the arrow as shown in the picture.

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This product can communicate with other devices via Bluetooth
communication and cable.
4. Peripherals Connection
4-1. Bluetooth Connection
1. The Printer can be connected to devices equipped with Bluetooth communication
capacity (PDAs, PCs, etc.)
2. Use the Bluetooth connection function supported by the device to connect to the
printer.
NOTE
Refer to the Bluetooth Manual for more details on connection.

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Serial
USB
4-2 Interface Cable Connection
1. Connect USB or Serial cable into the cable connector on the printer.
2. Connect the interface cable into the USB or Serial port of the device
(PDA, PC, etc.)
NOTE
Use the cable offered by the manufacturer (USB, Serial)

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Printing Method Direct Thermal
Printing Speed 80mm/sec
Resolution 203 DPI X 203 DPI
Character ALPHA NUMERIC Character, Extension Character
Barcode EAN-8, EAN-13, Code39, ITF, UPC-A,
Codabar, Code93, Code128, PDF417(2D)
Emulation ESC/POS
Driver Window CE 4.2&5.0, Window Mobile 5.0
Sensor Paper End Sensor
Paper paper type Thermal Paper
width 58mm
thickness 65㎕
External Diameter Max. Φ 48mm
Internal Diameter 12.5mm +/-0.5mm
Reliability TPH 50km
Battery Continuous printing for 90min
Standby for 24hours
Communications standard Serial(RS-232C), USB, Bluetooth Class2
Battery Charger input AC100~240V, 50/6 Hz
output 8.4V , 1200 mA
Battery Charger Battery type Li-ion
output 7.4V, 1900mAh
Charging time 2 Time
Size WXDXH(mm) 96 X 136 X 58
WXDXH” 3.7 X 5.3 X 2.2
5-1. Specication
5. Pritner Specification

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Temperature operation 5~40℃
storage -10~50℃
Humidity operation 35 ~ 95%
storage 10 ~ 95%
● Preventing Overheating
To prevent the motor from overheating, continuous driving of the printer should be
1.5 m or less in print length. Set the pause time for 30 seconds or more after
driving the printer.

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Please refer to the programming manual included in CD.
6. Setting up the software
FCC Information
This device complies with part 15 of the FCC Results. Operation is subject to
the following two conditions:
(1) This Device may not cause harmful interface, and
(2) This device must accept any interference received, including
interference that may cause undesired operation.
Note
This equipment has been tested and found to comply with the limits for
CLASS B digital device, pursuant to Part 15 of FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instuctions, may cause harmful interference
to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try correct the
interference by one or more of the following measures:
1.1. Reorient or relocate the receiving antenna.
1.2. Increase the separation between the equipment and receiver.
1.3. Connect the equipment into an outlet on a circuit different from
that to which receiver is connected.
1.4. Consult the dealer or experienced radio/TV technician for help.
WARNING
Changes or modifications not expressly approved by the manufacturer
could void the user's authority to operate the equipment.
♣Certification

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CAUTION
Antenna shall be mounted in such a manner to minimize the potential for
human contact during normal operation. The antenna should not be contacted
during operation to avoid the possibility of exceeding the FCC radio frequency
exposure limit.

Rev. 1.0
SEWOO TECH CO.,LTD.
Doosung BD, 689-20, Geumjung-dong, Gunpo-si, Gyeonggi-do, 435-862 South Korea
TEL : +82-31-459-8200 FAX : +82-31-459-8880
www.miniprinter.com