Dell 330-3110

High-speed monochrome printing is the whole job of Dell's 7330 and 7330dn, and the 330-3110 is the single black cartridge that fuels them. Dell also catalogues this cartridge as X730H and U789H, with 593-10358 as the kit number — four labels, one cartridge. There is no color set and no drum juggling on these machines: one black cartridge design covers the printer, which keeps ordering for a very fast, very busy printer refreshingly simple.

Machines in this class live in print rooms and busy departments where monthly volume runs into the thousands of pages. At that pace, the cost of a cartridge is measured less in its price than in how often someone has to stop a production run to change it, which is why this shelf leans on multi-packs sized for continuous work rather than one-off replacements.

Toner Cartridges for Dell 330-3110

Cartridge	Color	Page Yield
330-3110	Black	See product page
Dell 7330	Black	See product page
330-3110	Black	See product page
Dell 7330	Black	See product page
330-3110 Premium Quality	Black	See product page

Which cartridge should you buy?

There is one cartridge design for these printers, so the choice is between singles and packs. A single makes sense as an emergency spare or for the rare 7330 that sees light duty. For a machine printing thousands of pages a month, the three- and five-packs are the working choice: they cut the number of orders, keep a rotation of spares on the shelf, and mean a cartridge change never waits on a delivery. The premium-quality five-pack offers the same fit in a higher-grade build. If the printer is shared by a whole department, size your stock to at least one full spare per month of typical volume and reorder when the last spare goes into the machine.

Chip, toner and everyday use

The cartridge chip handles toner-level reporting, and on a printer this fast the level can fall quickly once the low warning appears — treat the warning as a prompt to locate your spare, not as a someday reminder. Peel all sealing tape before installation and slide the cartridge in until it seats with a click; a half-seated cartridge is the most common cause of streaky first pages. Yield figures for cartridges in this class assume the standard 5 percent coverage test page, so long runs of dense documents will finish a cartridge sooner. Keep spares in their sealed bags at room temperature, and shake a cartridge that has sat for months before installing it so the toner settles evenly.

Frequently Asked Questions

Are X730H and U789H the same cartridge as 330-3110?

Yes. X730H and U789H are alternate Dell part numbers for this toner cartridge, and 593-10358 is the kit number for the same supply. Whichever number is printed on the cartridge you are replacing, any of these four identifies the correct replacement, so order by the listing that is in stock.

What is the best way to extend the life of this cartridge?

Print internal documents in draft or toner-save mode: it cuts toner use dramatically while keeping text perfectly readable. Reserve full-quality mode for customer-facing output, and avoid solid black backgrounds and full-bleed banners, which drain a cartridge faster than almost anything else a print room produces.

Can I refill this cartridge myself instead of replacing it?

Refill kits exist, but refilled cartridges often print inconsistently and can leak toner inside the printer — and a leak cleanup costs more than the savings. On a work printer that other people depend on, a new cartridge in this family, genuine or quality compatible, is the safer economics.