Frequently Asked Questions

How can I be certain this single cartridge matches my printer before I order?

Check the number, not the machine's shape. Open the supply status on your TASKalfa or read the label on the black cartridge inside it: if it reads TK8507K, this $124.73 cartridge is the match. Guessing by cartridge appearance is how wrong orders happen; the number settles it.

My printer is a color model — why is this listing only for black?

Because the TK8507K is specifically the black unit. Color TASKalfa machines take separate color cartridges alongside it, and black is the one that empties first in most offices since everyday documents are overwhelmingly black text.

Which printers use this cartridge?

The TASKalfa 4550ci, TASKalfa 4551ci and TASKalfa 5550ci. If your machine is one of those three and its label calls for TK8507K, a single cartridge is all you need to order.

How many pages will I actually get from it?

The rating is 30,000 pages at standard test coverage — realistic for letter- and text-based office printing. Pages heavy with graphics, shading or solid black areas use toner faster, so treat the rating as a benchmark rather than a promise.

Is changing it something I can do myself?

Yes, in a couple of minutes and with no tools. Slide out the spent black cartridge, seat the new TK8507K until it locks, and close the machine. The printer recognizes the fresh supply and returns to ready on its own.

What if something is wrong with the cartridge after I install it?

It is covered by a 1-year warranty with free returns for a year, and support is reachable Monday through Friday, 9 AM to 5 PM CST. Orders ship from warehouses in IL, PA, GA and CA; timing and return instructions are on our shipping and returns page.

What does this single black cartridge cost per page?

At $124.73 for a TK8507K rated at 30,000 pages, the rated cost works out to about 0.42 cents per page at standard test coverage — a useful benchmark for a single-cartridge buyer costing a department's black supply. Pages dense with graphics, shading or solid black areas will cost more than that figure in toner terms, and plain letters and reports less, so treat it as the midpoint your real cost moves around rather than an exact charge per sheet.

How can I measure the yield I actually get from it?

Read the machine's page counter on the day the TK8507K goes in — or write the date on the box and keep the box — and read the counter again when the cartridge is changed. The difference is your true yield for this black on your TASKalfa, under your documents, your coverage and your paper. One measured cartridge tells you more about when to reorder, and what your black really costs per page, than any rating printed on a carton.

When should I reorder a single cartridge like this?

At the machine's first low-toner warning for black, not when the slot runs dry. A single-cartridge routine has no shelf spare behind it, so the warning is the moment the order needs to move; there is still working toner behind that message to cover the wait, and orders ship from our warehouses in IL, PA, GA and CA. Waiting for the machine to stop before ordering turns the simplest supply in the office into the one that holds work up.

What do I do with the old cartridge after the swap?

Keep the removed TK8507K for a few days while the new one proves itself on ordinary work — crisp text, even density, no messages. If the new cartridge were faulty, the 1-year warranty and 1-year free returns are far easier to exercise with the old unit still on the premises. Once the replacement has settled in, the spent cartridge can leave with your office's usual disposal for used toner units, boxed to keep any residue contained.

About This Cartridge

One compatible Kyocera-Mita TK8507K black toner cartridge for the TASKalfa 4550ci, 4551ci and 5550ci — the single replacement for an office that orders as needed rather than stocking ahead. Rated at 30,000 pages and priced at $124.73, it installs in minutes and is backed by a 1-year warranty and 1-year free returns.