HP Q5942A
HP Q5942A Toner Cartridges
HP Q5942A Toner Cartridges, HP 42A
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Rows of LaserJet 4240 and 4250 printers across corporate America run on one cartridge family: the HP 42A (Q5942A), with the high-yield HP 42X (Q5942X) for sites that print in volume. The LaserJet 4240, the LaserJet 4250 and the duplex LaserJet 4250DTN all take the same unit, so one spare covers the fleet. Stepping up to the 42X buys longer intervals between changes and a lower cost per page — the X suffix always signals high yield in HP's lineup. Clever Supplies stocks both yields as genuine OEM HP originals and as compatibles, letting procurement match capacity to real usage instead of guessing. Slide either cartridge into any 4240 or 4250 and get back to work.
Works with these HP printers
- LaserJet 4240
- LaserJet 4240N
- LaserJet 424N
- LaserJet 4250
- LaserJet 4250DN
- LaserJet 4250DTN
- LaserJet 4250DTNS
- LaserJet 4250DTNSI
- LaserJet 4250DTNSL
- LaserJet 4250N
- LaserJet 4250TN
- LaserJet 4350
- LaserJet 4350DTN
- LaserJet 4350DTNS
- LaserJet 4350DTNSI
- LaserJet 4350DTNSL
- LaserJet 4350N
- LaserJet 4350TN
- LaserJet M5025
Frequently Asked Questions
Can I mix 42A and 42X cartridges in the same printer?
Yes — but one at a time, since the printer holds a single cartridge. The 42A (Q5942A) and 42X (Q5942X) are physically identical and fully interchangeable in any LaserJet 4240 or 4250. Switching from a 42A to a 42X at the next change is seamless.
Why do compatible 42X cartridges cost so much less than HP's?
Third-party manufacturers don't carry HP's branding, marketing and distribution overhead, and they compete aggressively on price. The cartridge itself is built to the same dimensions and chip spec — you're paying less mostly because the HP logo isn't on the box.
Which yield should a 20-person office choose — 42A or 42X?
A 20-person office prints enough that the 42X usually wins: its larger toner load means fewer orders, fewer swaps and a lower cost per page. The 42A makes sense only for genuinely light use, like a printer that handles occasional overflow rather than daily work.