Printer Range > Colour Laser Printer > Oki ES9431

Oki ES 9431 A3/A4 Colour Printer

the ES 9431
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Overview of the Oki ES9431

The A3 colour printer designed for quality, built for creative industries

Key Features
printing speed printer connections duplex printer printer resolution

A4: 50ppm, A3: 28ppm

Hi-Speed USB & Ethernet

610 sheets face down tray, 300 sheets face up tray

1200 x 1200dpi

Key Features

A4/A3/A3+ four colour printer

A4: 50ppm colour/mono; A3: 28ppm colour mono print speeds

830 sheet standard paper capacity (up to 2,950 sheets)

PCL and PostScript printer language emulation

OKI has taken digital printing to a new level with the ES9431, a device designed for the graphic arts market that offers outstanding print quality, high print speeds, low total cost of ownership and unrivalled media flexibility.

The ES9431 is the perfect partner for creative agencies and design teams where producing concepts that are as close to the proposed final design is essential for client approval. The ES9431 can also be used as an office printer for day to day office printing, eliminating the need for two separate devices for your office and creative requirements

Media Flexibility to beat all others

The ES9431 will change the way you think about print on demand. The features below demonstrate why this outstanding device re-invents digital printing in the creative and graphics industries:

Paper handling capability from A6 to SRA3 and banner lengths up to 1.3m

Print on paper stock up to 360gsm single sided and 320gsm duplex

Print on a wide range of media including gloss paper, film, transfer paper, waterproof paper and more

530 sheet tray as standard with up to five trays maximum (2,950 sheets)

Robust 300 sheet multipurpose tray for added flexibility

In-house printing just got smarter

The ES9431 offers designers, graphics studios, point-of-sale manufacturers and a range of other graphics based businesses a new flexibility in their printing, proofing and production, enabling them to print in-house what they need, when they need it.

With the ES9431, the opportunities are endless.

Short-run packaging and concepts



Creative invitations


and much more!

Breathe new life into all your printing with a printer that removes the design barriers presented by traditional colour printing.

Oki ES9431 Specifications


Print Speed A4: 50ppm colour/mono; A3: 28ppm colour/mono
Time to first print (TTFP) 8 seconds colour/mono
Warm up time 50 seconds or less from power on
Processor speed 1.2GHz

Interface and Software

Connectivity Hi-Speed USB 2.0, 10Base-T/100Base-TX/1000Base-T
Printer language PCL5c, PCL6 (PCL XL), Adobe PostScript 3 with direct PDF Printing (v1.7), XPS, SIDM
Network & protocols All major network protocols supported via ethernet card with internal web server for printer and network card set-up and management. TCP/IP: IPv4/v6, ICMP, ICMPv6, IGMP, IGMPv2, LPR, Port9100, IPP, IPPS, FTP, FTP over SSL, HTTP, HTTPS, TELNET, IPP, Auto IP, LLTD, BOOTP, DHCP, SNMPv1/v3, SNMP Trap, DNS, DDNS, UPnP, Bonjour, WINS, SSL/TLS, SMTP, SMTP over SSL, POP3, SNTP, JCDP, FLDP, ODNSP, WSDPrint, WSD-Discovery, Web JetAdmin, NetBIOS over TCP, Ether Talk
OS Compatibility Windows Vista (32-bit & 64-bit) / XP (32-bit & 64-bit) / Server 2003 (32-bit & 64-bit) / Server 2008 (32-bit & 64-bit) / Server 2008 R2 (64-bit) / Windows 7 (32-bit & 64-bit) / Server 2012 (64-bit) / Windows 8 (32-bit & 64-bit); Mac OS9 / OS X 10.3.9 - 10.9
Advanced networking and security IPv6, 802.1x authentication, SMTP Server Authentication, SNMPv3, SSL3/TLS encryption, HTTPS encryption, Protocol On/Off, Protocol Port No. Change, MAC filtering, IP filtering, IP Sec, EAP-PEAP, EAP-TLS, Secure Erase, Secure Print, Secure Print Job Encryption, Storage Devices entire Encryption, Storage(HDD) Initialize (format)
Utilities Print Job Accounting, Print Job Accounting Enterprise, Print Job Accounting Client,, Template Manager, Color Correct, Color Swatch2, Configuration Tool, PS Gamma Adjuster, Profile Assistant (Mac Only), PDF Direct Print, EFI Fiery XF Server Option (External color management server)

Print quality

Resolution ProQ2400 Multi-Level technology, 1200 x 1200dpi
Enhancements Auto Colour Balance, Auto Registration, Auto Media Detect


Printer fonts 87 scalable PCL fonts, Lineprinter/OCR-A/OCR-B/USPSZIP bitmap fonts, 10 TrueType fonts, 136 Adobe PostScript Type 1 fonts
Barcodes UPC-A, UPC-E, EAN/JAN-8, EAN/JAN-13, Interleaved 2of5, Code39, Code128, EAN/UCC-128, CODABAR, ZIP+4 POSTNET: PDF417/QR code 2D barcodes

Paper Handling

Paper capacity Tray 1: 530 sheets of 80gsm; Multi-purpose tray: 300 sheets of 800gsm
Paper capacity optional tray Tray 2: 530 sheets of 80gsm; Tray 3: 530 sheets of 80gsm; Paper tray with castor: 530 sheets of 80gsm; High Capacity Feeder: 1,590 sheets of 80gsm
Maximum paper capacity 2,950 sheets of 80gsm
Paper sizes Tray 1/2/3: A3, SRA3 (up to 330 x 457mm), SRA4, A4, A5, A6, B4, B5, B6; Multi-purpose tray: A3, SRA3, SRA4, A4, A5, A6, B4, B5, B6 Custom size: Width 64 - 330mm Length 89 - 1,321mm; High Capacity Feeder: A3, SRA3 (up to 328 x 457mm), SRA4, A4, A5, A6, B4, B5, B6
Paper weight Tray 1/2/3: 52 to 320gsm; Multi-purpose tray: 52 to 360gsm; Duplex: 64 to 320gsm; High Capacity Feeder: 52 to 320gsm
Duplex Standard
Paper output 610 sheets face down tray, 300 sheets face up tray

Operator panel

LCD panel 10.9cm Colour Graphic LCD display (480 x 272 dots)

General Features

Memory (RAM) 2GB
Memory (Hard Disk Drive) Optional: 160GB
Operating temperature/ humidity 10°C to 32°C (17°C to 27°C recommended) / 20% to 80% RH (50% to 70% RH recommended)
Storage temperature/ humidity -10°C to 43°C, 10% to 90% RH
Power supply Single phase 230V AC +/-10%, frequency 50/60Hz +/- 2%
Power consumption Typical: 1100W; Max: 1600W; Idle: 40W (average); Power Save: <34W; Deep Sleep: <4W; Off Mode: <0.5W
Noise level Operating: 57dB(A); Standby: 34dB(A) or less; Power save: Inaudible
Dimensions (HxWxD) 640 x 699 x 625mm
Weight 97.6kg
Warranty 1 year

Oki ES9431 Accessories

Accessory Description Product ID
160GB Hard Disk Drive
160GB Hard Disk Drive  for the ES9431 Laser Printer
Enables sophisticated features such as password protected Secure Print, collate print and storage of forms, logos and fonts. 44622302
2nd/3rd Paper Tray
2nd/3rd Paper Tray
Adds an additional paper capacity of 530 sheets of 80gsm. 45530703
High Capacity Feeder
High Capacity Feeder for the ES9431 laser printer
Adds an additional paper capacity of 1,590 sheets of 80gsm 45530803
Paper tray with castor
Paper tray with castor
Integrated 530-sheet paper tray and castor 45530903
EFI Fiery XF Version 5 Digital Front End Standalone server which enables advanced colour management, including spot and process colours, optimising colour depth and print quality. 45592303

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