SM-L300 Series

5V Charging, Bluetooth® (Bluetooth® Low Energy) Printer for Android, iOS and Windows. Label and Sticky Paper Support

  • Easy Bluetooth® Connection by Bluetooth® Low Energy
  • Convenient DC 5V Charging
  • Supporting Various Paper Types
  • Portable Printers
  • Label
  • Mobile
  • 80mm Thermal Paper
  • Sticky Paper


Easy Bluetooth® Connection by Bluetooth® Low Energy

Simple, no pin required auto pairing with Bluetooth® 4.0 for iOS devices.

Convenient DC 5V Charging

Able to charge via a charger for a smartphone, PC USB port and a portable battery for a cell phone, no need of a dedicated battery adapter. Optional charging cradle available.


Supporting Various Paper Types

Receipts, labels and sticky paper support


If you would like to see information other than the above features, please refer to the “Others” section.



Model Name SM-L304-UB57 SM-L300-UB57
Printer Case Color Black
Printer Method Direct Thermal Line Printing
Character Specifications: Character Matrix Font A:32cpl, Font B:42cpl, Font C:48cpl
– KOR, CHN, JPN : 16cpl
No. of Columns Up to 72 columns
Character Sizes Font Size A: 12 x 24, Font Size B: 9 x 24, Font Size C: 9 x 17
– KOR: 24 x 24 (16 X 24), CHN & JPN: 24 x 24
Print Resolution 8 dot/mm (203 dpi)
Emulation StarPRNT
Interface versions Bluetooth® Ver.3.0/4.0 (Bluetooth® Smart Ready)
Print Speed 65 mm/second
Paper Specifications: Media Thermal Roll Paper, Label Paper, Linerless Label Paper
※Please contact the seller about Linerless Label Paper.
Width 40–80 mm (adjustable by 2 mm)
Roll Diameter 57 mm
Thickness Receipt: 0.053–0.120 mm, Label: Max. 0.150 mm
Overall Dimensions (W x D x H) 119.1 x 150.8 x 69.0 mm 119.1 x 146.4 x 69.0 mm
Weight Approx. 540 g (including Battery)
Power Voltage 7.4 V (2000 mAh)
Battery Running Time at 5 minute printing intervals 43 hours
Print Width 32–72 mm
Mag Stripe Reader (MSR) Standard MSR [ISO 1&2&3 track and JIS_II]
Operating Conditions 0–50°C, 20–85%RH
Print Head Life 50 km
Drop Test 1.2 m
Barcodes UPC-A/E, JAN/EAN-8/13, Interleaved 2/5(ITF)
CODE39, CODE93, CODE128, NW-7, GS1
2D Code QR Code, PDF417, GS1-2D, GS1-Comp
Others Convenient 5V USB charging

(Note) Battery operation time may shorten depending on environment temperature, operation conditions and battery charge frequency.

Related Contents

Manual / Store Applications



Battery pack

Belt clip

USB cable

Sample roll paper

The included accessories vary depending on the model.


Charging Cradle

Compatible software


Unique Decurl Function

Able to correct curling of printed receipts

Variable paper width support

Paper width: 40 ~ 80mm

Bluetooth® 4.0 Communication

Able to communicate & output using Bluetooth® 4.0 (Bluetooth® Low Energy) technology.

Support of Multi OS Environments

Equipped with Bluetooth® Smart Ready which supports Bluetooth® 3.0 / 4.0 (Bluetooth® Low Energy). Bluetooth® Low Energy communication for iOS devices and Bluetooth® 3.0 high speed communication for other OS

Connective with iOS Device without Apple MFi

Bluetooth® 4.0 allows users to communicate with iOS devices (iPhone, iPad) without MFi certification.

Blue Light LCD Display

Easy to determine printer status and error type.

StarPRNT (Star Line Mode) Support

Supports the Star Line mode commands (StarPRNT) for portable printers.

Standard support of Magnetic Stripe Reading Functionality (MSR model)

Able to read magnetic stripes in accordance with ISO or JIS standards, making it possible to create convenient solutions for tablets or smart phones that don’t support reading magnetic stripes.

Security (MSR model)

Supports advanced encryption of card data (DUKPT, AES, 3DES).

Compatible with Various OS Environments

Offering printer drivers for Windows, Mac OS and Linux.
StarIO facilitates developers in easily designing mobile applications without complicated communication control on diverse operating systems like Windows Mobile, Windows CE, iOS (iPhone, iPad, iPod) and Android

StarwebPRNT Support

Enables printing from Web-based applications
(by using WebPRNT Browser)

*All company and product names are trademarks or registered trademarks of their respective owners.

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