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Compact black thermal label printer, 10 by 8 by 12 cm

Rongta RP421A-BU-BK 4x6 Bluetooth label printer

SKU CH-4MDP-W17Z1 MPN RP421A-BU-BK

Thermal label printer produces inkless 4×6 in shipping labels via Bluetooth or USB for phones, tablets and computers

  • Print TechnologyInkless
  • CutterPortable,inkless, wireless
  • RFID Encoderprint_only, Thermal
  • Ribbon CharacteristicsInkless, Thermal
  • Media Typelabels
  • Media sizes supported4.1 in x 9.5 in x 4 in
  • Print labels wirelessly from your phone via Bluetooth
  • Connect to Windows or Mac computers using the USB cable
  • Thermal direct printing removes the cost of ink or toner
  • Works with major shipping and e-commerce platforms
  • Compact 10 cm x 8 cm x 12 cm size fits small workspaces

4x6 Bluetooth label printer

The Rongta RP421A-BU-BK prints 4 x 6 inch shipping labels using inkless thermal technology. It connects via Bluetooth to iOS and Android devices through the RONGTA app, or by USB to Windows and Mac computers. The compact unit measures 10 cm x 8 cm x 12 cm and includes labels in the box. Small businesses and home sellers who need a portable, wireless label maker for platforms such as Amazon, eBay, Shopify and UPS will find it suitable. Buyers who require colour printing or continuous paper rolls wider than 4.1 inches should look elsewhere.

Inkless thermal operation

Direct thermal printing removes the need for ink, toner or ribbons, so running costs stay low and there are no cartridges to replace. The mechanism produces black-and-white output only. No fan or active cooling is mentioned in the specifications, so the printer runs silently during normal use. Power is drawn over the USB connection when wired, or from the internal battery when operating wirelessly. Users who need high-volume continuous printing with active cooling should consider other options.

Portable build and daily connectivity

The printer weighs little and fits on a crowded desk or shelf thanks to its 10 cm x 8 cm x 12 cm footprint. A single USB port handles both data and charging, while Bluetooth pairing uses code 0000 or 000000. Driver installation is required on Windows and Mac, guided by a QR code to the manufacturer site. The included labels let you start printing immediately. Buyers who need Ethernet, Wi-Fi or a built-in display will not find those features here.

商品特色

  • Print labels wirelessly from your phone via Bluetooth
  • Connect to Windows or Mac computers using the USB cable
  • Thermal direct printing removes the cost of ink or toner
  • Works with major shipping and e-commerce platforms
  • Compact 10 cm x 8 cm x 12 cm size fits small workspaces

商品規格

BrandRongta
SeriesRP421A-BU-BK
ModelRP421A-BU-BK
Part NumberRP421A
Print TechnologyInkless
CutterPortable,inkless, wireless
RFID Encoderprint_only, Thermal
Ribbon CharacteristicsInkless, Thermal
Media Typelabels
Media sizes supported4.1 in x 9.5 in x 4 in
Total Media CapacityLabels
Print Size4 X 6 inches
InterfaceUSB
Windows CompatibleAndroid
Macintosh CompatibleiOS
Dimensions10 cm x 8 cm x 12 cm
Package ContentsLabels

商品問答

How do I pair the RP421A-BU-BK with my phone via Bluetooth, and what step is often missed?

Download the RONGTA app, enable Bluetooth on the phone, then pair using code 0000 or 000000; the step often missed is entering the pairing code when prompted.

What consumable will need replacing on the RP421A-BU-BK, and how often?

Only direct thermal label rolls need replacing; frequency depends on print volume since the printer uses no ink, toner or ribbon.

What limits continuous printing on the RP421A-BU-BK during a high-volume session?

The direct thermal print head heats up during sustained use, so the printer will pause to cool before resuming.

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