Oki 42918917, 42918918, 42918919 & 42918920 Toner Cartridges
Oki 42918917, 42918918, 42918919 and 42918920 toner cartridges keep your Oki C9600 and C9800 series graphic printers producing high-capacity output without mid-job interruption. Designed for heavy daily usage, these genuine toner cartridges deliver precise colour calibration and sharp text reproduction across large office print jobs. Our 4.8 Google Star rating shows that our customers consistently receive high-quality cartridges backed by reliable performance.
Expected page output and replacement cycles
All four cartridges in this series yield 15,000 pages based on ISO/IEC 19798 testing standards at 5% coverage. Cyan, Magenta, and Yellow toners deplete faster during graphic artwork runs, while standard document printing consumes the Black cartridge most consistently over time.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| 42918920 | Standard | Black | 15,000 | $0.064 |
| 42918919 | Standard | Cyan | 15,000 | $0.14 |
| 42918918 | Standard | Magenta | 15,000 | $0.13 |
| 42918917 | Standard | Yellow | 15,000 | $0.14 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Efficient stocking and dispatch options
If you primarily output full-colour proofs or sales brochures, replacement Cyan (42918919), Magenta (42918918), and Yellow (42918917) toners are consumed at similar rates. For high-volume office text, replace the Black (42918920) toner individually to manage printing costs. Browse our full range of Oki toner cartridges for ongoing fleet maintenance. Free delivery applies on all orders over $99, dispatched quickly from our warehouses in Perth, Brisbane, Sydney, Melbourne and Adelaide. Review our returns policy for full guarantee details.
Pro Tip
Due to the high yield of 15,000 pages per cartridge, store spare toners horizontally in their sealed anti-static packaging away from direct light and heat to maintain toner powder flowability until installation.
Match Your Printing Habits to the Right Oki 42918917-42918920 Toner Cartridge Pack
If only one colour has run dry, there's no need to replace the rest - a single Genuine 42918920 cartridge (from $966.98) is the lowest-cost way to keep printing.
Frequently Asked Questions
How does heavy graphic printing affect the estimated 15,000-page yield?
ISO standard page yields are calculated at 5% page coverage. Full-page A3 graphics or solid block backgrounds consume toner at 20% to 40% coverage per page, which reduces the total physical page output proportionally to roughly 2,000 to 3,500 pages per cartridge.
Can I replace single colour toners individually when one runs out?
Yes, the Oki C9600/C9800 series operates with separate toner cartridges for each colour. You can replace Cyan (42918919), Magenta (42918918), or Yellow (42918917) individually without disturbing the remaining cartridges or drum units.
Why is the Black toner priced lower than the Cyan, Magenta, and Yellow cartridges?
Black toner formulations use carbon black pigments, which are significantly less expensive to produce at enterprise scale than the specialised chromatic organic pigments required for Cyan (42918919), Magenta (42918918), and Yellow (42918917) colour matching.
Is part number 42918920 the correct Black cartridge for the Oki C9650?
Yes, part number 42918920 is the genuine high-yield Black toner cartridge designed specifically for Oki C9600, C9650, C9800, and C9850 printing systems.
