Frequently Asked Questions

How far ahead does one 310-5810 plan our 5100cn's cyan supply?

The cartridge is rated at 8,000 pages — sixteen reams of paper. A 5100cn printing about 50 mixed pages a day takes roughly 160 working days to get through that, and even a busy machine at 200 pages a day gets around two working months from one 310-5810. That long runway is the point of the high-yield version: cyan stops being a monthly errand and becomes a twice-a-year one.

Is 310-5810 the number I should match, or the printer name?

Match the number. This listing serves the Dell 5100cn, and Dell identifies its high-yield cyan supply as 310-5810; that number is stamped on the cartridge in the printer and printed on this page. Printer names get shared across whole families of machines, but the part number belongs to this cartridge alone, so it is the check that cannot send you to the wrong supply.

What does this cyan cartridge work out to per page?

At $45.79 for a rated 8,000 pages, the cost is roughly 0.57 cents per page at the standard 5% coverage the rating assumes. Real pages vary — a full-bleed photo uses far more cyan than the convention, a memo uses almost none — but 0.57 cents is the right figure for budgeting a normal mix of office color work.

Will the printer keep going if we let the cyan run completely dry?

Black text printing can continue, but color output cannot be trusted once a color is empty: the 5100cn will flag the 310-5810 as spent, and anything with blue or green in it comes out wrong or not at all. Because one cartridge lasts so long, the practical routine is to order when the low warning first appears and swap on the day the old one gives up.

Does a spare cartridge keep well on the shelf?

Yes, if it stays sealed, flat, and at room temperature away from sunlight and heat sources. A shelf spare bought alongside the installed 310-5810 is cheap insurance for a shared printer: when the warning appears there is no rush order and no color workarounds, just a swap. Rotate stock oldest-first if you hold more than one.

What backing does this cartridge come with?

It is a compatible cartridge rather than a Dell original, and it is backed by a one-year warranty plus one-year free returns — see the shipping and returns page for the full terms. Orders ship from warehouses in IL, PA, GA and CA, support runs Monday to Friday, 9 AM to 5 PM CST, and the rest of the machine's supplies sit in the Dell toner range if you are ordering for the whole printer at once.

About This Dell 5100cn Cyan Toner Cartridge (310-5810)

Named for the printer it feeds, this compatible cartridge is the Dell 5100cn's high-yield cyan supply: part number 310-5810, $45.79, rated at 8,000 pages. It is bought on a planning rhythm rather than an emergency one — months of color per cartridge, about 0.57 cents per rated page, and a single-cartridge change when blues and greens finally start to fade. Check the number on the cartridge you remove; if it reads 310-5810, this is the cyan it takes.