HP 42A & HP 42X Toner Cartridges
HP 42A and high-yield HP 42X compatible toner cartridges keep your HP LaserJet 4250 or 4350 series printer operating at peak performance. These high-capacity Black toner options deliver crisp, professional text output across long print runs, making them ideal for demanding office environments. Our 4.8 Google Star rating shows that our customers consistently receive high-quality cartridges backed by reliable performance. Choosing compatible cartridges significantly reduces cost per page while maintaining dependable print clarity.
Printers Compatible with HP 42A & HP 42X Toner Cartridges
Expected page output and replacement cycles
HP 42X (Q5942X) high-yield toner cartridges are rated for approximately 20,000 pages at 5% coverage under the ISO/IEC 19752 standard for monochrome laser printing. Actual page yield varies depending on graphics density, font boldness, and print batch sizes during heavy commercial operations.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| 42X | High Yield | Black | 20,000 | $0.003 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Compatible cartridges.
What to know about compatible 42X toner cartridges
Switching to premium compatible Q5942X cartridges provides identical page output and reliable optical density at a fraction of genuine rates. Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. Read our genuine vs compatible cartridge guide to learn how third-party options perform in high-speed office printers.
Choosing the right cartridge setup and delivery
If you run high-volume print cycles on your LaserJet 4250 or 4350, purchasing twin-pack bundles minimizes cartridge swap intervals and unit delivery costs. All compatible HP toner cartridges are covered by a money-back guarantee if they fail to perform. Review our returns policy for complete coverage details. Free delivery applies on all orders over $99, dispatched quickly from our warehouses in Perth, Brisbane, Sydney, Melbourne and Adelaide. Browse our full range of HP toner cartridges to complete your office setup.
Pro Tip
When installing high-capacity Q5942X cartridges, gently rock the toner cartridge horizontally five to six times before inserting it into the printer. This evenly redistributes settled toner powder after transport, ensuring consistent line density and preventing premature faded banding across early print batches.
Match Your Printing Habits to the Right HP 42A or HP 42X Toner Cartridge Pack
Watching the budget? Compatible cartridges match the fit and yield of genuine ink at a lower price, from $62.83 for a single 42X cartridge or 2-pack 42A for $119.38 (free delivery).
Frequently Asked Questions
Can the HP LaserJet 4250 printer use both 42A and 42X toner cartridges?
Yes, both the standard-yield 42A (Q5942A) and high-yield 42X (Q5942X) share identical physical slot dimensions. The 42X cartridge contains a larger internal toner reservoir, allowing high-volume printers to output up to 20,000 pages before replacement without requiring modifications.
Why does print output become faint before the Q5942X cartridge is completely empty?
In high-speed monochrome laser printers, toner distribution inside the long hopper can settle unevenly during continuous print jobs. Removing the cartridge and rocking it side-to-side redistributes remaining powder over the developer roller, extending usable output for several hundred additional pages.
Does installing a high-yield 42X toner cartridge require a separate drum replacement?
No, the HP 42 series toner architecture integrates the optical drum and developer assembly into the single toner cartridge unit. Replacing the 42X cartridge automatically replaces the imaging drum mechanism, maintaining sharp text output without requiring secondary drum maintenance kits.
Is Q5942X the same toner cartridge as HP 42X?
Yes, Q5942X and 42X refer to the exact same high-yield HP Black toner cartridge. Q5942X is the official manufacturer part number, while 42X is the abbreviated series identifier commonly used on packaging and online stores.
