Innovative technology – CMYW, A first for digital printing

The Pro9420WT is part of OKI’s White Toner (WT) portfolio – the first digital printer range that offers users the ability to print using white toner. Based on tried and tested devices, that are well regarded by graphic based industries for their high-quality output, the innovative Pro9420WT offers the same speeds as OKI’s standard colour digital LED printers and easy to use and operate.

  • Ultra-reliable digital LED printing technology and a simple, flat paper path for longer trouble-free printing.
  • Microfine High Definition toner and ProQ2400 Multi-level output quality with 1200 x 600dpi print resolution for sharp, crisp results
  • Prints at the same speeds as standard colour digital LED printers – 31ppm A4 plain paper, 16ppm, A3 plain paper

Extend creativity – White toner technology removes the last barrier in creativity and design

The Pro9420WT removes the design barriers presented by traditional CMYK printing processes. Printing solid white onto a wide variety of media, it can be used in combination with transfer media to create vibrant print on dark backgrounds, dark coloured garments and other hard surfaces.

  • Creates vibrant print on dark backgrounds, dark coloured garments and other hard surfaces
  • Produces white graphic and lettering transfers on cost-effective transfer media

In-house printing – Ideal for graphics, design and merchandising materials

White toner printing offers designers, graphics studios, point-of-sale manufacturers and a range of other graphics-based businesses new flexibility in printing, proofing and production, making it possible to print a range of demands in-house whenever they are needed. Flexible and built to overcome many of the barriers to creativity, the versatile Pro9420WT lowers the cost of producing creative design proofs.

  • Prints on paper sizes from A6 to A4, up to 250gsm and creates eye-catching banners up to 1200mm
  • Standard 630-sheet paper supply can be extended to 1,690 sheets
  • Fast 800MHz processor speed

Versatile media – Stand-out printing on coloured media, clear film and transfer media

For window graphics and clear film, the ability to print white on top of the other colour adds richness and depth to the graphics and text and displays white where needed, making colours stand out.

  • Prints on coloured print media, clear film and transfer media in sizes up to SRA3 and weights up to 300gsm.
  • Creates vibrant CMYW colours on dark and light-coloured media, clear film and transfer media, ensuring colour and image integrity


Printing Technology Digital 4 LED Full-color Electrophotographic Printing Method
Print Resolution 600 x 600 dpi (32 levels)
600 x 1200 dpi (2 levels)
600 x 600 dpi (2 levels)
Warm-up Time Approx. 85.0 seconds from power-on
First Print Out Time Color: Approx. 10.5 seconds
Mono: Approx. 9.0 seconds
Print Speed *1 A4(Landscape) 31 ppm color, 36 ppm mono
A3 16 ppm color, 20 ppm mono
Interface 1000BASE-T/100BASE-TX/10BASE-T, USB 2.0 (High Speed)
Protocol TCP/IP, EtherTalk
Printer Language Adobe PostScript 3, PCL 5c emulation, PCL 6 (XL) emulation, IBM ProPrinter emulation, Epson FX Emulation, PDF v1.6 emulation
Supported OS Windows 8, Windows 8 x64, Windows Server 2008, Windows Server 2008 x64, Windows Server 2003, Windows Server 2003 x64, Mac OS X 10.6, Mac OS X 10.5, Mac OS X 10.4
Memory (Std./Max.) 512MB/1,024MB
Hard Disk Drive (Optional) 40 GB
Font Adobe PostScript 136 fonts, PCL emulation 87 scalable fonts, 4 bitmap fonts
Paper Size Tabloid extra (12″ x 18″), Tabloid (11″ x 17″), Legal 13, Legal 13.5, Legal 14, Letter, Executive, A3, A3+, SRA3, A4, A5, B5, B4, B5, A6, Index Card (3″ x 5″) (75 x 125mm), Custom Size: Width 76-328 mm x Length 90-1200 mm
Paper Weight Tray 1 : 64 – 215 gsm
(Optional)Additional Tray : 64 – 215 gsm
Multi-purpose tray : 64 – 300 gsm
Input Capacity Tray 1 : 500 sheets
(Optional)Additional Tray : 500 sheets
Multi-purpose tray : 250 sheets
Output Capacity Face Down : Max. 500 sheets
Face Up : Max. 100 sheets
Dimensions(WxDxH) 471 x 655 x 625 mm
Weight(includes supplies) Approx. 81.5 kg
Weight(not includes supplies) Approx. 71.9 kg
Operating Environment Operating: 10 – 32 °C, 20 – 80 %RH
Storage: -10 – 43 °C, 10 – 90 %RH
No condensation
Power Source Single phase 198 – 264 VAC ±0%, 50/60 Hz ±2%
Power Consumption Operating: Max. 1,500W / Ave. 750W
Idle: 200W
Power Save: 33.0W
Safety & Environment Regulation EMC-Directive, CE Mark, GS Mark, CCC Mark
Noise Level Operating :Approx. 54 dBA
Idle: < 42 dBA
Power Save: < 28 dBA or Background level
Duty Cycle Recommended: 7,000 pages/month
Maximum: 150,000 pages/month
In the Box Manuals, Starter toner cartridge x 4, Image Drum x 4, Power cable, DVD-ROM


*1 They drop to 72% when started from cold start and they drop 76% in low temperature(<16℃).