3-inch Kiosk Printer mechanism with large roll diameter

A compact, flexible and highly reliable 3-inch (up to 83mm) open frame kiosk printing mechanism. Designed for standalone self-service kiosk installations, the BK3-32 direct thermal printer operates at print speeds of up to 250mm per second with 203dpi resolution to produce high quality text, graphics and barcodes. Presenting a larger paper roll capacity than traditional packaged kiosk printers, the BK3-32 supports a roll diameter of up to 250mm for a wide range of printing applications from busy hospitality settings to unattended booths. The kiosk printer also provides a paper saving mode through BIXOLON’s simple Unified Utility which reduces paper wastage resulting in paper savings up to 25% and decreased CO2 emissions.

With compact, lightweight design the BK3-32 kiosk printer supports multiple mounting options to provide design flexibility for kiosk builders. With a seamless paper feed with additional roller-tension, multi-position near end sensor for easy monitoring of the paper and an presenter to reduce paper jamming and vandalism. The kiosk printing mechanism also supports USB V2.0 and Serial (9 pin male or 5 pin connector) with a DC Jack or 2 pin power connector connectivity as standard.

Supported by BIXOLON’s wide range of drivers, utilities and SDKs, the BK3-32 is compatible with Windows® major OS system and OPOS-based systems from Android™, Windows® and Linux™ for smart based devices. Supporting by an industry leading 2 year warranty as standard.

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Powerful Printing Performance

– Fast speed up to 250 mm per second at 203dpi
– Long term reliable operation in a wide range of temperature
– Supporting selectable media widths : 83 / 80 / 60 / 58 / 20 mm
– A variety of drivers and SDKs for major operating systems including Android, Windows, and Linux
– Reducing paper usage up to 25% resulting in
less waste and lower CO2 emission

User-Centered Design

– Applies a media diameter of 80 / 102 / 120 mm
– The compact and lightweight design to fit perfectly into constricted spaces
– Power switch and reset button are available on both
sides of the printer for easy rebooting
– Multi-position near end sensor for efficiently monitoring status of paper

High Flexibility

– Standard Interface: USB (V2.0 Full Speed) + Serial
– Optional Interface: USB (V2.0 Full Speed) + Serial + Ethernet (BK3-31 only)
– Power: DC-Jack or 2P Connector
– Serial: 9P Male or 5P Connector
– Diverse types of bezel option can be tailored upon user’s needs


Print Characteristics
Print MethodDirect Thermal
Print SpeedUp to 250 mm/s
Print Resolution203dpi
Print Width BK3-31/BK3-32: 72 / 54 / 48 / 12 mm BK3-21: 54 / 48 / 12 mm
SensorPaper End, Cover Open, Near End, Black Mark
Media Characteristics
Media TypeReceipt, Ticket
Media Width20 / 58 / 60 / 80 / 83 mm
Media Roll Diameter BK3-31/BK3-32: 83 / 80 / 60 / 58 / 20 mm BK3-32: Up to 250 mm
Media Thickness 0.05 ~ 0.15 mm
Supply MethodEasy Paper Loading
Physical Characteristics
Dimensions (WxLxH)BK3-31 Media Roll Diameter Φ80: 130 x 130 x 91 mm Media Roll Diameter Φ102: 130 x 137 x 99 mm Media Roll Diameter Φ120: 130 x 144 x 105 mm BK3-32 Media Roll Diameter Φ250: 130 x 339 x 145 mm BK3-21 Media Roll Diameter Φ80: 109 x 130 x 91 mm Media Roll Diameter Φ102: 109 x 137 x 99 mm Media Roll Diameter Φ120: 109 x 144 x 105 mm
WeightBK3-31: 700 g, BK3-32: 1,470 g BK3-21: 600 g
Electrical100-240 V AV, 50/60 Hz
Lever Direction BK3-31/BK3-32: Left / Right, BK3-21: Right
Mount DirectionBK3-31/BK3-21: Horizontal / Vertical BK3-32 : Horizontal only
Performance Characteristics
NV Image Memory256 Kbytes (Mono)
Receive Buffer64 Kbytes
User Define Buffer12 Kbytes
InterfaceStandard: USB (V2.0 Full Speed) + Serial Optional: USB (V2.0 Full Speed) + Serial + Ethernet (BK3-31 only)
Environment Characteristics
TemperatureOperating: -20~60 ℃ (-4~140 ℉) ※ Optimal printing performances and maximum reliability will be obtained between 0 and 40 °C Storage: -20~60 ℃ (-4~140 ℉)
HumidityOperating: 10~95 % (non-condensing) Storage: 10~95 % (non-condensing) excluding paper
Thermal Print Head (TPH) 100 km
Auto Cutter1.5 Million Cuts
EmulationBXL / POS
Driver/UtilityWindows Driver, OPOS Driver, Linux / Mac CUPS Driver, Utility Program, Network Auto Installer(BK3-31)
SDK/PluginAndroid SDK, Windows SDK, Linux SDK
Character SizeFont A: 12×24 Font B: 9×17 Font C: 9×24 KOR, CHN, JPN: 24x24
Characters Per LinePrint width 72 mm : Font A: 48 Font B, C: 64, KOR, CHN, JPN: 24 (BK3-31 only) Print width 54 mm : Font A: 36 Font B, C: 48, KOR, CHN, JPN: 18 Print width 48 mm : Font A: 32 Font B, C: 42, KOR, CHN, JPN: 16 Print width 12 mm : Font A: 8 Font B, C: 10, KOR, CHN, JPN: 4
Character SetsAlphanumeric: 95 Extended Graphics:128×35 page International: 32
GraphicsSupporting user-defined fonts, graphics, formats and logos
Barcode Symbologies1D: Coda Bar, Code 39, Code 93, Code 128, EAN-8, EAN-13, ITF, UPC-A, UPC-E 2D: Data Matrix, GS1-128, GS1 DataBar Stacked / Omnidirectional / Truncated / Limited / Expanded, PDF417, QR code
OptionalSMPS (DC Jack) SMPS (2P Connector) Male to Male type Serial Cable 5P to Male type Serial Cable USB A-B Cable 1.8 m Power Cord



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