LaserJet 4350

The LaserJet 4350 was HP's 2005 range-topper — the fastest engine in its family, an A4 monochrome workgroup printer built for demanding offices that measured output in boxes of paper, not pages. It takes the HP 42A cartridge, sold here as the Q5942A, with the high-yield 42X — the Q5942X — above it, and a jumbo-yield Q5942AJ at the top of the range for the busiest queues.

A flagship engine earns its keep in departments where the print queue never really empties: billing runs, warehouse paperwork, end-of-month reporting. On a machine worked that hard, the cartridge stops being a supply item and becomes part of the schedule — a changeover is a pause the whole department feels. That is why this page leans into depth: multi-packs and two yield tiers above standard, so a 4350 can be stocked the way it is actually used.

Toner Cartridges for LaserJet 4350

Which cartridge should you buy?

Think of the range as a ladder. The standard Q5942A is the baseline replacement and the right choice for moderate volume. Step up to the Q5942X when the standard cartridge's changeover rhythm starts interrupting the week — same fit, deeper fill, lower cost per page. The Q5942AJ jumbo-yield cartridge sits above both for departments that treat toner changes as downtime. Multi-packs of the standard and high-yield codes cut the per-cartridge price for sites that reorder often, and the MICR listings serve check printing only. All compatible cartridges here carry a 1-year warranty with 1-year returns.

Chip, toner and everyday use

When output starts to fade near the end of a cartridge, remove it and rock it gently from side to side a few times — the toner left inside redistributes and usually carries a run of pages further. Remember that published yields assume about 5 percent coverage per page; dense departmental documents use toner faster, so treat the printer's own low warning as your real gauge. Keep the next cartridge sealed until the swap, and store it flat in a cool spot rather than upright in a warm supply closet.

Frequently Asked Questions

Which toner cartridge does the LaserJet 4350 use?

The standard cartridge is the Q5942A; the high-yield Q5942X and the jumbo-yield Q5942AJ fit the same machine. Match the code on the cartridge you remove if you are ordering for the first time.

What is the difference between the 42A and the 42X?

Yield. The 42A is the standard fill and the 42X is the high-yield fill of the same cartridge design, so the high-yield version prints longer between changes and usually costs less per page.

Who should buy the jumbo-yield cartridge?

Departments whose 4350 runs near-continuously. The Q5942AJ holds the deepest fill on this page, stretching the interval between changeovers further than the high-yield option.

What are the MICR listings for?

Check printing. The Q5942A MICR and Q5942X MICR cartridges use magnetic toner for checks; everyday documents should use the regular listings.

The same cartridge family covers these models: HP Q5942A, LaserJet 4240, LaserJet 4240N, LaserJet 4250, LaserJet 4250DN, LaserJet 4250DTN, LaserJet 4250DTNS, LaserJet 4250DTNSI, LaserJet 4250DTNSL, LaserJet 4250N, LaserJet 4250TN.

The rest of the family: LaserJet 4350DTN, LaserJet 4350DTNS, LaserJet 4350DTNSI, LaserJet 4350DTNSL, LaserJet 4350N, LaserJet 4350TN.