Canon imageCLASS MF543x Toner Cartridges
Your Canon imageCLASS MF543x uses the CART056 and CART056H toner cartridge series. Ink Depot has been supplying reliable consumables for this printer since Dec 2019. Built for demanding office environments, this high-speed mono laser printer delivers up to 43 pages per minute for crisp text documents. Our 4.8 Google rating proves it: we consistently supply premium cartridges backed by rock-solid reliability. Upgrading from the standard CART056 Black cartridge to the high-yield CART056H option substantially cuts cost per page during heavy document cycles.
Expected page output and replacement cycles
Page yield for Canon CART056 Black toner cartridges is measured according to ISO/IEC 19752 testing standards for monochrome laser printers. Heavy text printing across high-volume office environments makes high-yield options the most cost-effective choice for maintaining long operational runs.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| CART056 | Standard | Black | 10,000 | $0.030 |
| CART056H | High Yield | Black | 21,000 | $0.019 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Choosing between genuine and compatible options
Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. Compatible CART056 and CART056H toner cartridges offer significant cost savings while maintaining clear monochrome print output. Read our guide comparing genuine vs compatible cartridges to determine which option best aligns with your workplace print demands.
Managing inventory and ordering strategy
If you print mainly text documents in high volumes, choosing CART056H high-yield cartridges or bundle packs reduces physical replacement steps and overall print expenditure. Compatible cartridges offer maximum budget savings and include a money back guarantee for total peace of mind. Check our returns policy for complete coverage details. Browse our range of Canon toner cartridges for prompt order dispatch. Free delivery applies on all orders over $99, with fast dispatch from our local warehouses in Perth, Brisbane, Sydney, Melbourne and Adelaide.
Cartridge Selection Tip
High-volume office environments printing more than 500 pages per week will achieve significantly better operating margins by standardising on the CART056H high-yield toner rather than standard CART056 units.
Frequently Asked Questions
Can I install a high-yield CART056H cartridge in a printer that previously used standard CART056 toner?
Yes. The CART056 and CART056H cartridges share identical external casing dimensions and fit into the exact same slot inside the Canon imageCLASS MF543x. The high-yield CART056H simply contains more toner powder internally, yielding up to 21,000 pages compared to the standard 10,000 pages.
How does document coverage affect the page yield of CART056 toner cartridges?
Standard yield ratings are based on 5% page coverage under ISO/IEC 19752 testing. Printing dense legal contracts, detailed reports, or heavy graphics increases toner consumption per page, which reduces total output below the standard 10,000 or 21,000 page rating.
What is the shelf life of unopened CART056 and CART056H toner cartridges?
Unopened monochrome toner cartridges stored in a cool, dry place away from direct sunlight have an average shelf life of 24 to 36 months. Because toner powder does not dry out like liquid ink, stocking spare CART056H units in bulk is an effective way to prevent office downtime.
