Printerland Logo
Mon - Fri 9:00am - 5:30pm Sales:0800 840 1992 Customer Service:0800 995 1992
Basket
Basket 0
 
OKI MB491 Multifunction Printer Accessories

OKI MB491 Multifunction Printer Accessories

Ask a Question
OKI Second Paper Tray (530 Sheets)

44575714

OKI Second Paper Tray (530 Sheets)
  • Genuine Original OKI Product
  • Black Friday Price Now! - Guaranteed!*
Business Price
£144.10 ex VAT @ 20%
£172.92 inc VAT
Out of Stock
OKI 256MB RAM Memory

44615411

OKI 256MB RAM Memory
  • Genuine Original OKI Product
  • Black Friday Price Now! - Guaranteed!*
Business Price
£170.49 ex VAT @ 20%
£204.59 inc VAT
Out of Stock
OKI 64MB RAM Memory

44615402

OKI 64MB RAM Memory
  • Genuine Original OKI Product
  • Black Friday Price Now! - Guaranteed!*
Business Price
£26.99 ex VAT @ 20%
£32.39 inc VAT
Out of Stock
OKI Foreign Device Interface

44924502

OKI Foreign Device Interface
  • Genuine Original OKI Product
  • Black Friday Price Now! - Guaranteed!*
Business Price
£21.00 ex VAT @ 20%
£25.20 inc VAT
Out of Stock

**Page yields are declared by the manufacturer in accordance with ISO/IEC standards or occasionally estimated based on 5% per page coverage. Yields will vary greatly depending on image, area coverage, print mode and environmental conditions.

Do you think your OKI MB491 is past its sell-by date? Stop and think again. By using genuine OEM accessories you can boost the productivity and functionality of your MFP for a fraction of the cost of a new printer. Whether you want fill and forget high volume printing, fast output speeds or high definition quality, a printer upgrade is the environmentally friendly alternative to capital investment.

Productivity and functionality

Have you experienced the frustration of waiting for a print only to get an error message instead? Or have you scheduled a print run for overnight only to find the whole system has frozen? Then a memory boost is a cost-effective way to bring an older printer back up to speed.

As a rule of thumb, the bigger the printer memory, the more complex the tasks your printer can handle. Having the option to upgrade memory means that your printer's performance can keep pace with the growing demands of your business without incurring the capital costs of buying a new printer.

Combined with an extra paper tray to reduce the number of refills your printer needs to accomplish any task, memory is a savvy upgrade that supports a growing workgroup by handling print tasks efficiently. OKI make it easy to boost memory with user install RAM memory modules.

For additional functionality, add the Foreign Device Interface. Control and report printing and copying through smart card systems for smooth operation and better accounting.

Original OKI products

At Printerland we only supply genuine OKI products. When you choose to upgrade, you need ease of use and 100% compatibility so your printer is back up and running in minutes. OEM accessories are easy to install and rigorously tested for safety in the office environment. OKI products are supplied with a peace of mind warranty allowing you to purchase with confidence.

Questions & Answers

Customer Question & Answers

Can't find the answer you're looking for? Our printer experts are here to help!
Ask a Question

Why buy from us?

  • Printer Experts Printer Experts Printer Experts
    30+ Printer Experts Ready to Take Your Call

    Our average call answer time is just 3 phone rings

    Mon - Fri 9:00am - 5.30pm

  • Trusted Service
    Over 30 Years of Trusted Service

    Established in 1993 we have grown to be the largest independent reseller of printers and consumables in the UK

  • UK tax payer
    Proud to be a UK Tax-Payer

    Printerland is registered in England and Wales with a UK based call centre, making it even easier to get the support you need.

  • Printer Experts
    Our Customers Love Us!

    Join thousands of happy customers today and enjoy the best service your business deserves.

Why Buy from Printerland?

Popular Searches

Most Popular Printers

  • 99+ In Stock
    Xerox C235
    Xerox C235 A4 Colour Multifunction Laser Printer
    (37)
    • Most Compact Colour Laser MFP Available
    • Lowest Running Costs in its Class
    • Free 3 Year On-Site Warranty and Extend up to 5 Years*
    • Black Friday Price Now! - Guaranteed!*
    Business Price £259.00
    ex VAT @ 20%     £310.80
    inc VAT
      Free Next Day Delivery*
    View
  • 99+ In Stock
    Xerox C325
    Xerox C325 A4 Colour Multifunction Laser Printer
    (29)
    • Free 3 Year On-Site Warranty and Extend up to 5 Years*
    • Black Friday Price Now! - Guaranteed!*
    Business Price £296.16
    ex VAT @ 20%     £355.39
    inc VAT
      Free Next Day Delivery*
    View
  • 99+ In Stock
    Epson EcoTank ET-2862
    Epson EcoTank ET-2862 A4 Colour Multifunction Inkjet Printer
    (7)
    • £40 Cashback & Free Gift
    • Free 5 Year Warranty
    • 0.2p per Mono Page, 0.5p per Colour Page*
    • Shipped with 3.6K Black & 6.5K CMY Inks*
    Business Price £135.80
    ex VAT @ 20%     £162.96
    inc VAT
      Free Next Day Delivery*
    View
  • 1 In Stock
    Xerox B230
    Xerox B230 A4 Mono Laser Printer
    (40)
    • Free 3 Year On-Site Warranty*
    • Extremely Compact A4 Mono Laser Printer
    • Black Friday Price Now! - Guaranteed!*
    Business Price £97.00
    ex VAT @ 20%     £116.40
    inc VAT
      Free 7-10 Working Day Delivery*
    View
  • 99+ In Stock
    HP OfficeJet Pro 9730e
    HP OfficeJet Pro 9730e A3 Colour Multifunction Inkjet Printer with HP Plus
    (2)
    • £100 Cashback
    • Up to 3 Years Extended Warranty*
    • Free 3 Month Instant Ink Trial*
    • Eligible for HP Plus
    Business Price £169.99
    ex VAT @ 20%     £203.99
    inc VAT
      Free Next Day Delivery*
    View
  • 99+ In Stock
    HP Color LaserJet Pro 4202dw
    HP Color LaserJet Pro 4202dw A4 Colour Laser Printer
    (10)
    • £50 Cashback
    • 40 Day Buy & Try Offer
    • Free 3 Year Warranty
    • Black Friday Price Now! - Guaranteed!*
    Business Price £187.40
    ex VAT @ 20%     £224.88
    inc VAT
      Free Next Day Delivery*
    View
  • 50 In Stock
    Kyocera ECOSYS M5526cdw
    Kyocera ECOSYS M5526cdw A4 Colour Multifunction Laser Printer
    (80)
    • Free 2 Year On-Site Warranty
    • Lowest Running Costs in its Class
    • Black Friday Price Now! - Guaranteed!*
    Business Price £413.25
    ex VAT @ 20%     £495.90
    inc VAT
      Free Next Day Delivery*
    View
  • 99+ In Stock
    Canon MAXIFY GX6050 MegaTank
    Canon MAXIFY GX6050 MegaTank A4 Colour Multifunction Inkjet Printer
    (7)
    • Free 3 Year Warranty
    • 0.2p per Mono Page, 0.7p per Colour Page*
    • Ships with 6K Black & 14K CMY Inks*
    • Black Friday Price Now! - Guaranteed!*
    Business Price £313.32
    ex VAT @ 20%     £375.98
    inc VAT
      Free Next Day Delivery*
    View
Subscribe for Special Offers
Receive all our latest discounts

Keep me up to date with the latest discounts at Printerland by email.

View Our Privacy Policy
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Thank you!

We will be in touch soon with our latest special offers.
In the meantime, use code SIGNUP5 to get 5% off all ink and toner cartridges.

Recently Viewed
Compare Products
FREE Next Day Delivery on all Orders Over £125
Free Next Business Day Delivery
Available on all orders over £125.00 + VAT on the UK mainland

Most items are shipped to you via ‘Next Working Day’ courier service. The cut-off for next working day delivery is 4:30pm. In the event of an item not being available via this service, we will endeavour to contact you at the earliest opportunity.

We also deliver to the Channel Islands, Scottish Islands, Isle of Man, Northern Ireland and Eire. Areas such as the Scottish Highlands or where a body of water is crossed are subject to a 2-3 working day delivery time.

Please note, we are always charged a levy by the courier if an area of sea is crossed. For our full list of delivery charges please click the following link: Delivery Charges

No guarantees are given for next day delivery. However, our mission is to achieve this where possible.

  • 100% Genuine Manufacturer Cartridges
  • FREE Next Day Delivery On Orders Over £125 ex VAT*
  • Genuine Cartridges Protect Your Warranty
The Printerland Promise...
We Won't Be Beaten on Price! We check our closest competitors every day to make sure you get the best deal possible!
If you still find anyone cheaper, we'll match the price on request..

Even on ink and toner cartridges!

To request a price match, call us on 0800 840 1992 or email us at
  • The competitor must have the identical product in stock and available immediately to the general public.
  • Offer does not include stock based outside of the UK.
  • The competitors product price must include any charges for next day delivery.
  • Offer does not apply to special order items, special offers, cash-backs, display models, clearance sales, refurbished printers, typographical errors and exclusive or limited quantity items.
  • Printerland cannot match the price where a manufacturer or distributor sells directly to the public
  • We reserve the right to verify or ask for written proof of a competitors offer before we beat the price.
  • The price promise cannot be used in conjunction with any other offer.
  • Price matches must be agreed prior to the purchase being made.
  • Any price match will be limited to one unit per customer within a 30 day period.
  • Where special offers provided by Printerland and/or the manufacturer applies, the competitor must also be providing the same offer/s for the price match to be valid.
  • 100% Genuine Manufacturer Cartridges
  • FREE Next Day Delivery On Orders Over £125 ex VAT*
  • Genuine Cartridges Protect Your Warranty

Price applicable to business customers and those eligible to recover VAT.

VAT is payable at a rate of 20%

This calculation is based on current pricing which is subject to change over time and excludes the cost of additional long life components such as drums, fusers or other maintenance items.

*Page yields are declared by the manufacturer in accordance with ISO/IEC standards or occasionally estimated based on 5% coverage. Yield will vary greatly depending on image, area coverage, print mode and environmental conditions.

*Page yields are declared by the manufacturer in accordance with ISO/IEC standards or occasionally estimated based on 5% per page coverage. Yields will vary greatly depending on image, area coverage, print mode and environmental conditions.

Warranty terms are valid for the entire lifetime of the printer whilst under subscription.

Manage your consent preferences cookie policy
  • Essential Cookies
    These are necessary for basic website functionality and to keep your data secure.
  • Performance Cookies (for a better experience)
    These help us improve your experience on this website and allow us to better recommend items and services based on your choices.
  • Functional Cookies (for the best experience)
    These recognise the items you have chosen to help you see similar products across other Printerland services.
  • Marketing Cookies (for your future visits)
    If you see one of our ads across the web, these cookies ensure they are relevant to you based on your choices when shopping with us.
;