OKI 5 Color Digital Media Printer | 941 E

Go Beyond 4-Color with White or Clear Toner


With your C941dn Multimedia Production Platform device from OKI, you can
demonstrate your creativity or broaden your printed offerings by producing
materials on a wide range of media in CMYK plus White or Clear gloss toner.

The C941dn not only gives you the opportunity to produce vibrant mockups,
stationery, invitations, brochures, packaging prototypes, point-of-sale
material, watermarks, window graphics, labels, etc., but to do so quickly and
easily—as well as cost-effectively


Examples of the C941dn’s unique capabilities:

  • Retail Signage – HD Color imagery is a knock-out (even on 14-point polyester) – even more so with flood Clear toner 
  • Bottle Labels – White toner under CMYK on transparent film makes colors pop!
  • Pocket Folders – Spot White and Clear toner give powerful emphasis to text and graphics; handles heavy stock (up to 360gsm)
  • 2-Sided Business Cards – Using spot Clear toner over CMYK is a brilliant effect; White toner on dark-colored media really draws the eye
  • Banners – HD Color on sheets up to 13″ x 52″ and 360gsm is attention-grabbing – adding spot Clear to call out details even more so!
  • Envelopes – Print on matte media, with spot Clear toner 
  • Table Tents – Spot Clear toner makes color even more vibrant on industry-standard substrates
  • Magnetic Media Signs – Flood-coat with Clear toner for a dazzling finish – or highlight details with Spot Clear
  • Invitations – Print text and spot Clear graphics with White toner on dark media for a striking, elegant look

Extraordinary results that transcend expectations.

Now you can demonstrate your creativity or broaden your printed offerings by producing materials on an incredible range of media in 4-color plus solid White or Clear gloss toners. These processes—which used to require expensive printing equipment and outside resources—are available in-house and on demand with the C941dn, a unique 5-station multimedia production platform device from OKI®.

The C941dn gives users the ability to create extraordinary mock-ups, stationery, invitations, brochures, packaging prototypes, point-of-sale material, watermarks, window graphics, labels, etc., in breathtaking HD Color that now includes White or Clear spot color!

Apply White toner first or last

Use white text and graphics on dark-colored media. Make 4-color images on dark media stand out by laying down White toner first and printing CMYKon top—the same technique used for producing vibrant 4-color images on translucent media or transparency film.

Two minutes from White to Clear.

That’s all it takes to switch the 5th station of the C941dn from White toner to Clear Gloss toner—and back again. Each color kit comes with all you need to get spectacular effects on opaque, translucent or transparent media with no fuss. And the front-accessible compartment makes exchanging or replacing consumables even easier. 

Industry-leading color quality – starting with HD Color technology, available only from OKI®

C900 Series

HD Color Printing technology

High definition color is the standard for the C900 Series. HD Color renders deeper, more saturated colors, finer detail and more precise toner placement than ordinary color printers. This unique four-part process includes:


strong>Multilevel LED printheads that control the amount of toner applied to each 1200-dpi dot, preserving fine image detail and maximizing color fidelity.

Microfine toner engineered to ensure that printed documents are sharp and crisp, with a high-quality finish.

Single Pass Color™ technology enhanced to improve color registration, regardless of paper type and weight, and provides better toner transfer across a wider range of media types.

Printer control system automatically adjusts for sharp, clear images every time; color checking and matching deliver professional photo-like quality.

EFI® Fiery® XF 5 Server

The C931dn and C941dn are ideal for professionals with an eye for accurate color output. Equipped with the optional external EFI Fiery XF 5 server, these models can take advantage of fast, precise color reproduction, while also making it easy to submit print jobs with consistent results.

XF Version 5 is a flexible and scalable high-speed RIP with color management software that streamlines production, from job creation to printing and verification, through customizable automated workflows.

It comes pre-loaded with industry leading EFI applications and the C900 Series Printer Option, which enables users to:

  • Achieve consistent color, page to page and job to job 

    • Get stunning, precise and predictable quality prints
    • Advanced spot- and process-color optimization

  • Automate workflows

    • Fully customizable user interface allows applications to be tailored to each operator’s tasks and skill set
    • Eliminate touch points and remove the need for manual job submission
    • Reduce error rates



C941dn – 5-Color Digital LED; C931dn/C911dn – 4-Color Digital LED

Print Speed1
CMYK/Mono – Up to 50ppm Letter, 27ppm Tabloid
CMYK + White (C941dn only) – Up to 45 ppm Letter, 24 ppm Tabloid
CMYK + Clear (C941dn only) – Up to 18 ppm Letter

Time to First Page1 – Approx. 8 seconds

Duty Cycle – 300,000 pages

Print Quality

Resolution – Up to 1200 x 1200 dpi; ProQ 1200 x 600 x 16 levels

Memory – 2 GB RAM (Standard/Max)

Processor – C941dn – 1.2 GHz ARM CPU; C931dn/C911dn – 1 GHz ARM CPU


Printer Languages – Adobe® PostScript® 3™, PCL® 6, PCL 5c, XPS®

Connectivity – High-speed USB 2.0, 10 Base-T/100 Base-TX/1000 Base-T Ethernet

Operating Systems – Windows® 8, Windows 7, Windows Vista®, Windows XP, Windows Server 2012, Windows Server 2008, Windows Server 2008 R2, Windows Server 2003; Mac® OS 10.3.9 – 10.9

Network Protocols – TCP/IP, EtherTalk

Color Features/Solutions

C941dn/C931dn – EFI® FIery® XF 5.0 Server (optional external PC-based server) Trapping; Embedded ICC Profile-based workflow; Simulations for SWOP, ISO Coated, Japan Color; PDF Direct Print; PS Gamma Adjust; Color Correct

Print Management

Print Job Accounting; PrintSuperVision 4.0

Media Handling

Media Sizes – Tabloid extra (12″ x 18″), tabloid (11″ x 17″), legal, letter, executive, 3″ x 5″ index cards, A3, A4, A5, A6, B5, C5, DL, Com 10, Monarch envelopes, and banners (up to 13″ by 52″)

Media Weight – Trays 1/2/3 and High-Capacity Feeder: 52–320gsm; Multi-purpose Tray: 52–360gsm

Media Capacity Multi-purpose Tray (MPT) – Up to 300 sheets
Trays 1/2/3 – Up to 530 sheets
High-Capacity Feeder- Up to 1,590 sheets
Max Capacity – Up to 2,950 sheets (w/ MPT, 2 Trays and High-Capacity Tray)

Media Output – Face Down: max 610 sheets; Face Up: max 300 sheets


Size (WxDxH) – 27.5″ x 24.6″ x 25.2″ (699 mm x 625 mm x 640 mm)

Weight – C941dn – 244.4 lbs (110.8 kg) including consumables; C931dn/C911dn – 215.2 lbs (97.6 kg) including consumables

Temperature/Humidity – 50˚– 90˚F (10˚ – 32˚C) / 20% – 80%RH

Power Consumption – Active: 1600W max. /1100W avg.; Standby: avg. 40W; PowerSave mode: 30W or less; Sleep mode: 4W or less; Auto Shutoff: 0.4W or less

Noise Levels – Active: 57dBA or less; Standby: 34dBA or less; PowerSave mode: Inaudible


Accessory (Part Number) – 530-Sheet 2nd/3rd Tray (45530702); High-Capacity Feeder w/ caster base (45530802); 530-Sheet Tray w/ Caster Base (45530902); EFI® Fiery® XF 5.0 PC-based Server (45592302)3; 160 GB Hard Disk Drive (44622302)

Warranty (Limited)

C911dn/C931dn: 1-Year On-Site4; C941dn: 90-Day On-Site4; All models: 5-Year Digital LED Printheads

1Published performance results based on laboratory testing of letter-size sheets, simplex. Individual results may vary.
2Based on ISO/IEC 19798.
3Available for C931dn and C941dn models only.
4Available in the U.S. and Canada only.
5Based on 5% coverage of letter-size sheet, simplex.
6Based on 3 pages per job.

Specifications are subject to change without notice.
Featured products may not be available in all countries. Please contact your local office for regional availability.


Additional information

Weight 950 lbs

Product Type