Seiko 4″ DPU-S445 Hand-Held Mobile Printer – DPU-S445


• Seiko – DPU-S445 – Seiko DPU-S Series Hand-Held Mobile Thermal  Printer

• Capable of meeting the mobile environment’s demand for durability and reliability.


Ready to print anywhere. With best in class portability and ease-of-use design.



  • Bluetooth, USB and Serial interface
  • Max. print speed: DPU-S245 : 100 mm/s
  • Max. print speed: DPU-S445 : 90 mm/s
  • Compact and lightweight
  • Easy paper operation
  • Supports label and cut sheet paper
  • Windows drivers (XP, Vista, 7) (32/64bit)
  • Android SDK
  • Software library (Windows CE 5.0, Windows Mobile 5.0 / 6.0)
  • Label print





The DPU-S Series are hand-held portable printers incorporating a low voltage thermal printer mechanism that ensures fast and high quality printing. This latest member of our DPU family, the DPU-S445 features all demands of the escalating mobile printing market. IrDA interfacing combined with the availability of Windows XP and Vista drivers as well as a software library (Windows CE 5.0, Windows Mobile 5.0 / 6.0) meet the requirements of mobile computing equipment. Applications do range from field sales, inspection and measuring services, mobile medical condition monitoring through to inventory and warehousing equipment.

Capable of meeting the mobile environment’s demand for durability and reliability, this compact performer features a Lithium-ion-battery with an optional external charger. You can be assured of excellent resolution in characters and graphics, and a high print speed of up to 90 mm/s. Couple these outstanding features with Bluetooth, RS-232C, USB, serial, or IR wireless versatility and a print width of 104 mm, and you’ve got the answer to your portable and mobile print needs at a price that’s as easy to live with as the DPU-S445 is easy to carry. You can also put this compact unit in many instrument cases or holders, making “hands-free” use a reality.




PrintingMethodThermal line dot printing
Number of dots/line384832
Resolution (dots/mm)8
Paper width (mm)58112
Printing width (mm)48104
Speed (mm/sec) max10090
Outside diameter of paper roll (mm) maxф 38ф 50
Character matrix (H×W dots)24 × 12, 24 × 24, 16 × 8, 16 × 16
Character dimensions (H×W mm)3.0 × 1.5, 3.0 × 3.0, 2.0 × 1.0, 2.0 × 2.0
Number of columns24, 12, 32, 1652, 26, 69, 34
Type of PaperRoll paper, Label roll paperRoll paper, Label roll paper, Cut sheet paper
Character typeExtended graphics character set, Katakana character set,
CP1252, Optional font, Downloaded character,
User-defined character, JIS 1 & 2 level kanji
Bar codeUPC-A/E, JAN (EAN) 8/13, ITF, CODE39, CODABAR,
CODE128, PDF417, QR Code, MaxiCode, Data Matrix
Power supply (V)Li-lon battery, Specified AC adapter
Communication interfaceBluetooth*1, USB, Serial
Input buffer4K bytes
CommandESC/P™ conformity
CuttingTear bar
Operating temperature (˚C)-10 to 500 to 50
Service life (km)50*2
Dimensions (W×D×H mm)83 × 130 × 45*3145.0 × 135.0 × 58.0*3
Mass (g)Approx. 280*4Approx. 490*4
StandardFCC, CE, VCCI, CCC*5
OptionAC adapter, Battery pack, Battery charger, AC cable,
USB cable, Serial cable, Carrying case
Software*6Printer driver, Windows CE (SDK), Android™ (SDK) , iOS(SDK)
*1 Only Bluetooth model. *2 Use recommended thermal papers. *3 Excluding protrusion. *4 Including battery, excluding roll paper.
*5 DPU-Sx45-00B-E model only. *6 Please see “Associated software tool” for details.

USB interface specification

USB printerclass 2.1 conformity

Bluetooth interface specification

Based on Bluetooth Ver. 2.0 + EDR

Serial interface specification

Baud rate1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
Data bit7bits, 8bits
Parity bitOdd, Even, or None
Stop bit1bit, 2bits
Control methodH/W BUSY, Xon/Xoff

Printer Drivers




If you cant find an off the shelf product that meets your specific requirements speak with our in house design team who can design a new product from start to finish.


Design | Develop | Test | Manufacture

Here’s a selection of our design, manufacturing

& associated services: –


Design to Order: OEM/ODM Embedded Product Design Services

For customers designing a brand-new product from scratch or working with an existing prototype.DesignToOrder

  • FREE Pre-design / Pre-sales advise
  • Prototyping – Custom PC Design, Custom Panel PC, Custom Racks or Custom Peli Case PC
  • Prototyping pre checks (chargeable one-time fee for existing prototype)
    • Hardware compatibility
    • Thermal testing
    • Software compatibility
  • Custom PCB / Board Design
  • Custom Chassis Design
  • Custom Cables
  • Custom Back Panels and Faceplates
  • Custom Cooling
  • Custom Metal Work (internal brackets, mounting brackets)
  • Touchscreen Integration and Display Enhancements
  • Software – Custom OS Image

Build to Order: Embedded System Integration and Customisation Services​

Take an existing system and we can:BuildToOrder

  • Custom specification (CPU, Ram, I/O, Storage)
  • Chassis customisation and branding
  • Custom BIOS
  • Software – Custom OS Image
  • Custom Packaging and branding
  • Integrating newly designed or existing hardware into a larger system

Build to order Racks and Towers, Peli Case PCs and Mini-ITX PCs

Windows IoT and Windows 10 Embedded: Integration and Embedded Software Services

Porting, Integration & DeploymentEmbeddedSoftware

  • Windows image capture from customers HDD
  • Linux image capture from customers HDD
  • Windows / Linux Deployment from customers image
  • Custom Windows images, create and deploy
  • Update management
  • Custom Linux and Android images?
  • Custom BIOS