HP Q6511A
HP Q6511A Toner Cartridges
HP Q6511A Toner Cartridges, HP 11A
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Ask a facilities manager what feeds the LaserJet 2400, 2410 and 2420 fleet and you will hear one answer: the HP 11A (Q6511A). This black toner cartridge is the standard supply for the whole series — the LaserJet 2400, the LaserJet 2410, the LaserJet 2420D and every sibling in between — and volume printers can upgrade to the high-yield HP 11X (Q6511X), which packs more toner and cuts per-page cost. The X suffix is HP's universal shorthand for high yield, and here it buys longer intervals between swaps. Clever Supplies lists both versions two ways, genuine OEM HP and compatible, so the choice comes down to brand preference and budget rather than compatibility. Whichever you pick, it seats directly into any 2400-series machine with no setup.
Works with these HP printers
- LaserJet 2400
- LaserJet 2400
- LaserJet 2400D
- LaserJet 2400DN
- LaserJet 2410
- LaserJet 2410XI
- LaserJet 2420
- LaserJet 2420D
- LaserJet 2420DN
- LaserJet 2420DTN
- LaserJet 2420N
- LaserJet 2420TN
- LaserJet 2430
- LaserJet 2430DTN
- LaserJet 2430N
- LaserJet 2430T
- LaserJet 2430TN
Frequently Asked Questions
How can I be sure the Q6511A fits my printer?
Match your printer's model number against the list above — any LaserJet in the 2400, 2410 or 2420 range uses this cartridge. You can also pull out the old cartridge and check that its label reads Q6511A or Q6511X; the two are interchangeable in the same machine.
Should I buy the genuine HP 11A or a compatible?
The genuine cartridge is HP's own factory original with HP toner and chip, while a compatible is a third-party cartridge built to the same specification at a lower price. Both print the same black pages; cost-conscious offices usually choose compatibles, and offices that want the HP name on the box choose OEM.
Does the 11X really last longer than the 11A?
Yes. The 11X is the high-yield version of the same cartridge and holds considerably more toner, so it keeps printing long after a standard 11A would run dry. If your team swaps toner often, the 11X typically costs less per page even though the cartridge itself costs more.