TASKalfa 4551ci
Kyocera refreshed the 4550ci into the TASKalfa 4551ci with updated internals — and deliberately kept the same toner set, so nothing in the supply cabinet changes: the TK8507 family, with TK8507K black rated for up to 30,000 pages and TK8507C cyan, TK8507M magenta and TK8507Y yellow rated for up to 20,000 pages apiece. The shelf below also carries TK8309 sets for the smaller TASKalfa models in the family, built around the TK8309K black cartridge, whose colors — TK8309C, TK8309M and TK8309Y — come in the same bundles.
If you know the TASKalfa 4550ci, you know this machine: the 4551ci is its direct successor in the 45-ppm-class color MFP tier, the workhorse for mid-size departments printing mixed A3 and A4 jobs day after day. The practical gift of a supply-identical refresh is zero waste — every cartridge stocked for the older machine is a cartridge this one uses, and every reorder habit your team already has stays correct.
Toner Cartridges for TASKalfa 4551ci
| Cartridge | Color | Page Yield |
|---|---|---|
| TK8507K | Black | Rated up to 30,000 pages |
| TK8507C | Cyan | Rated up to 20,000 pages |
| TK8507M | Magenta | Rated up to 20,000 pages |
| TK8507Y | Yellow | Rated up to 20,000 pages |
| TK8507 4 Color Set | Black, cyan, magenta, yellow | One of each cartridge |
| TK8507K 2 Black | Black | Rated up to 30,000 pages each |
| TK8507K 3 Black | Black | Rated up to 30,000 pages each |
| TK8507K 5 Black | Black | Rated up to 30,000 pages each |
| TK8507 5 Color Set | Black, cyan, magenta, yellow | Five-cartridge set |
| TK8507 8 Color Set | Black, cyan, magenta, yellow | Eight-cartridge set |
| TK8507 6 Color Set | Cyan, magenta, yellow | Six-cartridge color set |
| TK8507 3 Color Set | Cyan, magenta, yellow | Three-cartridge color set |
| TK8507 (TK8507K) Black | Black | Rated up to 30,000 pages |
| TK8507 (TK8507C) Cyan | Cyan | Rated up to 20,000 pages |
Also stocked on this page for the smaller family models:
- TK8309 5 Color Set — five cartridges for the smaller family machines
- TK8309 8 Color Set — the largest TK8309 bundle on the shelf
- TK8309 6 Color Set — six-cartridge color-focused set
- TK8309 3 Color Set — three-cartridge color set
- TK8309 3 Color Set, second listing — the same three-color set listed again
Which cartridge should you buy?
Order for the machine in front of you: TK8507, in the combination your volume dictates. A single department on this platform typically works through black fastest, so one black spare plus colors bought individually as they empty covers most months. The two- and three-black multipacks reward steady high volume with fewer orders and a lower cost per page; the five-black pack belongs on floors running several of these machines. The five- and eight-cartridge color sets are stock-building tools — the right buy when a department is setting up a new machine or resetting a depleted cabinet in one delivery.
Chip, toner and everyday use
A successor machine with an unchanged cartridge design means installation is the routine you already know: unwrap, remove the protective seals, and slide each cartridge in until the printer acknowledges it. The chip on every unit reports its rated life to the machine, which is how the panel can warn well before a color actually empties — use that warning as your reorder point and the swap itself becomes a non-event. Remember that the rated figures come from ISO/IEC 19798 testing; a department printing dense A3 color all day will see real-world yields below the headline numbers, while light text coverage can stretch them further.
Frequently Asked Questions
What toner does the TASKalfa 4551ci take?
The TK8507 set — TK8507K black up to 30,000 pages, and TK8507C, TK8507M and TK8507Y up to 20,000 pages each. Each cartridge is sold and replaced on its own, so you only ever change the color that has emptied.
We still have cartridges stocked for our 4550ci. Are they wasted?
Not at all. The 4551ci kept the 4550ci's toner set on purpose, so existing shelf stock carries straight over. The same continuity is why the machine's supplies never need a separate budget line after the upgrade.
Should I order the TK8309 sets shown on this page for the 4551ci?
No — those sets serve the smaller 3050ci and 3550ci models in the family list below. Your machine's cartridges are the TK8507 line in the main table above.
What warranty do the compatible cartridges carry?
A 1-year warranty and 1-year returns on the compatible cartridges for this model.
More printers that use the same cartridges
Family models covered by the toner lines on this page: TASKalfa 3050ci, TASKalfa 3051ci, TASKalfa 3550ci, TASKalfa 3551ci, TASKalfa 4550ci, TASKalfa 5550ci, TASKalfa 5551ci.