Frequently Asked Questions

The printer has four slots — why does this box contain five cartridges?

Because the fifth cartridge is the one that keeps a low-toner warning from becoming a stopped printer. The four slots of the C2660dn take the family members — the 593-BBBU black, the 593-BBBT cyan, the 593-BBBS magenta and the 593-BBBR yellow — and the extra cartridge waits on the shelf as the immediate spare. When a slot runs dry mid-week, the replacement is already in the building; nobody waits on a delivery to finish a print run. The set is bought complete and consumed slot by slot, spare included.

What does the fifth cartridge do to the math?

This 5-pack is $82.20 — $11.85 more than the $70.35 four-cartridge set. Spread across five cartridges, the average falls from about $17.59 to about $16.44 per cartridge. What that $11.85 buys is continuity rather than capacity: the four working ratings stay the same (6,000 pages for the 593-BBBU black; 4,000 each for the 593-BBBT, 593-BBBS and 593-BBBR), and the spare's value is measured in the print job that doesn't stall, not in pages.

Which slot is the spare most likely to serve first?

Whichever empties first — and in this family the odds favor a color. The three color ratings are 4,000 pages each, against the black's 6,000, so on a C2660dn the first empty slot is statistically a color slot: cyan, magenta or yellow, depending on what your documents draw on. That rhythm is exactly what the fifth cartridge is for — it absorbs the first replacement event, and the full set's remaining cartridges follow as their slots ask.

Are all five cartridges covered the same way?

Yes — the cover is per cartridge, not per box. Each of the five, the working four and the shelf spare alike, carries our 1-year warranty and 1-year free returns. A spare that sits sealed until its slot needs it is still a covered cartridge when its turn comes. The terms are on our shipping and returns page.

Are these Dell-manufactured cartridges?

No — they are compatible cartridges built to the 593-BBBU, 593-BBBT, 593-BBBS and 593-BBBR specifications for the C2660dn, not Dell-made stock. The part numbers are the machine's own supply identity, which is what the compatibility rests on; the warranty and returns cover above is ours, and it applies to all five cartridges in the box.

Where does the 5-pack ship from, and how do we reach support?

From the nearest of our four US warehouses — Illinois, Pennsylvania, Georgia or California. Support is available Monday to Friday, 9 AM to 5 PM CST if any cartridge underperforms. The other pack sizes and the rest of the compatible range for this family are collected on our Dell toner page.

When the box arrives, how do we check all five cartridges are the right ones?

Match codes before the box goes into storage. Four of the five should read as the family set — 593-BBBU black, 593-BBBT cyan, 593-BBBS magenta and 593-BBBR yellow — and the fifth should be one of those same four codes, since the spare is drawn from the same family. Check the seals are unbroken at the same time. A two-minute inspection at delivery is worth far more than discovering a wrong or damaged cartridge months later, on the day a slot runs dry and the shelf stock is the only thing standing between the office and a stopped print run.

Two slots ran dry in the same week — does the order of swapping matter?

Not mechanically, but swap one at a time and print between changes. Fitting a single cartridge and running a test page confirms that slot is healthy before you disturb the next; fitting two at once and finding the output still wrong leaves you guessing which change is responsible. With this set the situation is common, because the three colors carry 4,000-page ratings against the black's 6,000, so color slots often call for attention close together. One at a time, with a page between, keeps every change proven as you go.

How do we keep track of which slots have already been replaced from this box?

Use the carton as the record. Each time a cartridge from the set goes in, write the slot and the date on the box — 'cyan, March' is enough. With five cartridges consumed at different times and the spare moving from shelf to slot, that scrap of handwriting answers the questions that otherwise cause confusion months later: which colors are still on their first cartridge, how long each one lasted, and whether the fifth cartridge has been used yet. It also gives you clean fitting dates if a warranty question ever arises about a specific unit.

How should the five cartridges be arranged while they wait their turn?

Grouped and labeled, so the box reads at a glance. Keep the four slot cartridges together, each still sealed, and place the spare where it cannot be mistaken for one of the working set — behind them, or in its own marked spot on the shelf. The failure this prevents is real: in a busy office an unmarked spare gets fitted during a tidy-up or by a helpful colleague, and the set silently loses the very buffer it was bought for. Sealed, flat, out of sunlight, and visibly accounted for is the whole system.

About This Dell C2660DN 5-Cartridge Set

This listing extends the C2660dn's compatible high-yield family — 593-BBBU black rated at 6,000 pages, 593-BBBT cyan, 593-BBBS magenta and 593-BBBR yellow rated at 4,000 pages each — with a fifth cartridge held as the shelf spare, for $82.20. It ships from our Illinois, Pennsylvania, Georgia or California warehouse, and every cartridge carries our 1-year warranty and 1-year free returns.