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SATO part #: WD312-400DN-EX1

Thermal Printer SATO WS412 DT, 300 dpi, Dispenser

The 4-inch thermal desktop printer for label and tag printing applications. The WS4 series printers are feature-rich, affordably priced, and with great production throughput. The printer is designed to be user-friendly, with flexible media capability and enhanced connectivity. It also includes tool-less print head and platen roller replacement, and has all five printer languages pre-installed and auto-detected. A three-color LED lamp system helps operators easily identify the printer status at a glance.

  • Print resolution: 300 dpi
  • Print method: Direct Thermal
  • Communication interface: Standard
  • Max print speed: 4 ips
  • Max print width: 4.09"
  • Max print length: 39.33"
  • Printer memory: 16MB ROM, 32MB RAM"

See full specifications

$594.75$793.0010+ in stock
Save $198.25
$594.75$793.0010+ in stock
Save $198.25
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Added value

  • Best value/price ratio in the market among competitive products
  • FREE shipping and low expedited shipping rates

Added value

  • Best value/price ratio in the market among competitive products
  • FREE shipping and low expedited shipping rates

Added value

  • Best value/price ratio in the market among competitive products

Customize your printer configuration

This item is configured to match the part # listed above. If you change any option below, part # will change accordingly.

Choose your printer resolution

Choose media handling

Choose communication interface

$594.75 | Part #: WD312-400DN-EX1
$594.75$793.00/ as configured
SATO part #: WD312-400DN-EX1
Thermal Printer SATO WS412 DT, 300 dpi, Dispenser
FREE shipping
WS4 easy to use


  • Compact footprint for easy placement
  • High-speed throughput of up to 6 ips
  • Firmware download via USB for easy updates
  • Simple platen and print head replacement
  • Three-color status LED for clear printer status indication
WS4 flexible and capable

Flexible label and ribbon handling

  • Compatible with wound-in or wound-out labels and ribbons
  • Adjustable I-mark sensor for precise label positioning
  • Versatile ribbon core sizes (0.5” or 1.0” ID)
  • 984 feet ribbon capability for high-volume printing
WS4 many connectivities

Advanced connectivity

  • Comes with Ethernet, USB, and RS232 interfaces as standard
  • Optional Bluetooth or Wireless LAN for enhanced connectivity
  • Supports IPv4/IPv6
  • Features multiple printer emulations (SZPL, SEPL, SDPL, SIPL)
WS4 cerner validated

Cerner validated

Fully Cerner Validated for native use within the Cerner health IT system, ensuring safety, quality, and efficacy for patients. Designed for use throughout the healthcare supply chain, they are ideal for printing patient wristbands, pathology labels, and other labels in hospitals.

SATO is a GS1 Healthcare member promoting serialization for patient safety and comfort.

Method Direct Thermal
Mode Dispenser
Resolution 300 dpi (12 dots/mm)
Speed 4 ips (101.6 mm/sec)
Print area Maximum width: 4.09″ (104 mm)
Maximum length: 39.33″ (999.0 mm)

Sensor type Adjustable I-Mark Sensor (Reflective), Label Gap Sensor (Transmissive), Label Taken Sensor (Dispenser Option)
Media type Roll or Fan-fold Die Cut Labels, Plain Paper Face Stock, Synthetics and Continuous Stock, Ticket
Media Thickness (label & liner)
0.002” – 0.007” (0.06 mm – 0.19 mm)
Roll diameter
Roll max. outside diameter: 5.0” (127.0 mm),
Core diameter: 1.0” / 1.5″ (25.4 mm / 38.1 mm)
0.88″ (22.4 mm) to 4.53″ (115.0 mm)
TT/DT: 0.31″ (10.0 mm) to 39.21″ (996.0 mm)
TT/DT: 0.31″ (25.4 mm) to 39.21″ (996.0 mm)
DT mode on TT model: 1.18″ (30.0 mm) to 39.21″ (996.0 mm)
TT/DT: 0.76″ (25.4 mm) to 39.09″ (993.0 mm)
DT mode on TT model: 1.37″ (35.0 mm) to 39.09″ (993.0 mm)
TT/DT: 0.92″ (25.4 mm) to 5.92″ (150.4 mm)
DT mode on TT model: 1.37″ (35.0 mm) to 5.92″ (150.4 mm)
Ribbon (TT model) Length
Max. 984.2 ft (300m) center justified
Core diameter
0.5″ (12.7 mm) for 100m (328.0 ft) / 1.0″ (25.4 mm) for 300m (984.2 ft)
Wind direction
Face-out/face-in, no setting change required
SATO genuine consumables For maximum print quality and optimum use, SATO recommends the use of SATO genuine consumables.

Internal fonts 7 bitmap SATO fonts, 2 scalable SATO fonts, multinational language support, single and double byte fonts (Korean, Chinese and Japanese)

Standard USB (Type A, Type B), LAN, RS232C
Wireless Optional WLAN, IEEE 802.11 b/g/n, Optional Bluetooth, V2.1 + EDR
LAN protocols ARP, IP, ICMP, UDP, TCP, HTTP, DHCP, Socket, LPR, IPv4, IPv6, SNMPv2
Emulations Auto Detect – SBPL®, SZPL®, SEPL®, SDPL®, SIPL®

Full Cutter
Real Time Clock Module (future option)
Wireless LAN
Bluetooth Interface
External Unwinder

Linear UPC-A/E, JAN/EAN-8/13, Code 39, Code 93, Code 128, Bookland, GS1-128 (UCC /EAN128), Codabar (NW–7), Interleaved 2 of 5, MSI, GS1 DatabarTM / RSS14 (Truncated, Stacked, Limited, Expanded), Industrial 2/5, Composite JAN/EAN-8/13, Composite UPC A/E, PostnetTM, Matrix 2/5
2D symbologies PDF417 Including Micro PDF, MAXI Code, QR Code, GS1 Data Matrix (ECC200)
Print rotation/character data – barcode 0°, 90°, 180°, 270°

Environment Operating temperature: 41 to 104 ̊F (5 to 40oC), 25 – 85% RH, Non- condensing
Storage temperature: -4 to 140 ̊F (-20 to 60oC), 10 – 90% RH, Non- condensing
Status indicators 2 Tricolor LEDS (red, green and orange)
Power requirements Energy StarTM input voltage adapter: AC100V-240V (Auto switching);
DT: 60W / TT: 90W

Standards & agency approvals EN60950-1, UL60950-1/CSA C22.2 No.60950-1, CE Marking, FCC, TUV GS, ICES-003, RCM, CCC, KC, EAC, S-Mark
User serviceable Thermal printhead and platen roller can be replaced without tools


  • Asset management
  • Bag tags
  • Boarding/admission passes
  • Coupons/promotions
  • Evidence tracking
  • GTIN/FDA compliance
  • Pallet/carton management
  • Parking passes
  • Patient identification
  • Pharmacy and product labeling
  • Price marking
  • Shipping/receiving labels
  • Specimen/slide labels
  • Visitor ID
  • Warehouse picking/put away
  • Work-in-progress and product labeling