SKU:

Q6511X

Printer Brand:

Hewlett Packard

OEM Number:

Q6511X

Ink Color:

Black

Page Yield:

12,000 Pages

Printer Type:

Laser Cartridge

Condition:

New Compatible

Frequently Asked Questions

How do I confirm this is the right supply for my printer?

Check the code on the cartridge coming out. Stamped Q6511X means this is the match: the compatible HP 11X high-yield black cartridge, a single unit at $45.41 rated at 12,000 pages. The full code matters — the X marks the high-yield build, and matching it exactly is what delivers both the fit and the long rated life.

What does 12,000 pages look like in practice?

On a workhorse like the LaserJet 2420, it is typically the better part of a year of ordinary office printing between changes. The rating is set on standard text pages, so heavy graphics and dense forms pull real life below it, while plain correspondence tracks close. Either way, toner changes become rare enough to forget between one and the next.

My pages have started to look washed out. Is it empty?

Uniform fading late in a cartridge's life is the usual end arriving. Rock the unit gently side to side to recover the settled toner for a final run of pages — and treat that as the signal to have the replacement ready. Patchy fading on a fresh cartridge is different, and worth a call to us.

Is there a separate drum to replace on this platform?

No. The drum is part of the cartridge on this family, so fitting a fresh Q6511X renews the imaging surface at the same time. One part, one swap, and both the toner supply and the print-quality baseline reset together — nothing else to stock or schedule.

What warranty and returns does it carry?

A 1-year warranty and 1-year free returns, with full terms on our shipping and returns page. We deliver from warehouses in Illinois, Pennsylvania, Georgia and California, and support is staffed Monday through Friday, 9 AM to 5 PM CST if you need help with anything from fit to print quality.

Should I keep a spare for a printer that prints this steadily?

It is the low-effort answer to the only real risk with a long-life cartridge: that it finishes unnoticed, mid-week, mid-job. A sealed spare in the drawer costs little shelf space and converts that moment into a two-minute change.

About This HP 11X Cartridge

This single compatible Q6511X is the high-yield black supply for the 2420 platform, part of our HP toner cartridges range for offices that want toner to be a twice-a-year thought at most. It goes in, delivers its rated 12,000 pages of dense black text, and asks for nothing in between.

Printer coverage for the 11X (Q6511X) runs to LaserJet 2430, LaserJet 2430dtn, LaserJet 2430n, LaserJet 2420, LaserJet 2420d, LaserJet 2420dn and LaserJet 2420n. There are other ways to buy for these machines — the standard-yield 11A (Q6511A) single cartridge and the maximum-yield 11XX (Q6511XX) single cartridge among them.