Oki 45488903 & Oki 45439003 Toner Cartridges
Oki 45488903 standard and Oki 45439003 high-yield Black toner cartridges keep your Oki B700 and MB700 series printers operating smoothly. Choosing the high-capacity version reduces replacement frequency and lowers cost per page during heavy document output, while the standard option suits lower print demands. Our 4.8 Google Star rating shows that our customers consistently receive high-quality cartridges backed by reliable performance.
Printers Compatible with Oki 45488903 & Oki 45439003 Toner Cartridges
Expected page output and replacement cycles
Page yields for Oki 45488903 and 45439003 toner cartridges are measured using ISO/IEC 19752 standards based on 5% page coverage. The 45439003 high-capacity toner delivers 36,000 pages, offering lower running costs for intense office workloads compared to the 25,000-page standard 45488903.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| 45488903 | Standard | Black | 25,000 | $0.046 |
| 45439003 | High Yield | Black | 36,000 | $0.036 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Selecting toner options and shipping
For high-volume office printing exceeding several reams weekly, choosing the 36,000-page 45439003 toner cartridge lowers your cost per printed page from 4.6 cents to 3.6 cents. If print demand is lighter, the 25,000-page 45488903 requires less upfront budget. All genuine Oki toner cartridges are covered under our flexible Returns policy. Orders are dispatched directly from our warehouses in Perth, Brisbane, Sydney, Melbourne and Adelaide to ensure fast delivery. Free delivery applies on all orders over $99.
Pro tip for high-capacity Oki toners
Before inserting a new 45439003 or 45488903 cartridge, gently tilt the toner container side-to-side five times. This evenly distributes settled toner powder across the internal hopper, preventing faint print bands on initial high-volume runs.
Match Your Printing Habits to the Right Oki 45488903 or Oki 45439003 Toner Cartridge Pack
If only one colour has run dry, there's no need to replace the rest - a single Genuine 45488903 cartridge (from $1,162.46) is the lowest-cost way to keep printing.
Frequently Asked Questions
Can I use the 36,000-page 45439003 toner in all printers that take the 45488903?
Yes, both 45439003 and 45488903 cartridges share the exact physical slot dimensions across compatible Oki B700 and MB700 series models. The high-capacity 45439003 simply holds extra toner powder.
What is the ISO test coverage used to calculate Oki toner yields?
Page yields of 25,000 and 36,000 pages are based on the ISO/IEC 19752 standard at 5% page coverage. High-density text documents, letterheads, or graphics consume toner faster, reducing total page count.
Do high-capacity Oki toner cartridges require a drum unit replacement at the same time?
No, Oki toner cartridges and image drum units operate as separate components. You only replace the toner cartridge when prompt messages indicate low toner, without needing to replace the drum until its distinct lifespan expires.
Is 45488903 the same cartridge code as 45439003?
They belong to the same cartridge series and fit the same Oki printers, but represent different yield capacities. Model 45488903 provides 25,000 pages, while model 45439003 is the high-yield version providing 36,000 pages.









