TASKalfa 5551ci

Kyocera TASKalfa 5551ci printer

As the refreshed edition of the 5550ci, the TASKalfa 5551ci carries the 55-page-per-minute-class color platform forward with the familiar TK8507 cartridges: TK8507K black at up to 30,000 pages, and TK8507C cyan, TK8507M magenta and TK8507Y yellow at up to 20,000 pages each. Alongside them, this page stocks TK8309 sets for the smaller TASKalfa models in the family — the line built on the TK8309K black cartridge and the TK8309C, TK8309M and TK8309Y colors.

It sits at the top of its TASKalfa generation for throughput, aimed at the busiest color floors — and departments running high monthly color volumes get that faster engine without relearning supplies or restocking a different toner set. When a single color runs low, the replacement is ordered under its own number and swapped on its own; nothing about the refresh complicates the routine the 5550ci established. The machine changed, the shelf did not.

Toner Cartridges for TASKalfa 5551ci

TK8507K black — the single black cartridge, rated up to 30,000 pages
TK8507C cyan — the single cyan cartridge, rated up to 20,000 pages
TK8507M magenta — the single magenta cartridge, rated up to 20,000 pages
TK8507Y yellow — the single yellow cartridge, rated up to 20,000 pages
TK8507 4 Color Set — one of each cartridge in a single box
TK8507K 2 Black — two black cartridges
TK8507K 3 Black — three black cartridges
TK8507K 5 Black — five black cartridges
TK8507 5 Color Set — a five-cartridge full-color bundle
TK8507 8 Color Set — an eight-cartridge full-color bundle
TK8507 6 Color Set — a six-cartridge bundle of the three colors
TK8507 3 Color Set — one each of cyan, magenta and yellow
TK8507 (TK8507K) Black — the black single under a second listing
TK8507 (TK8507C) Cyan — the cyan single under a second listing

Also on this shelf, 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?

Buy the TK8507 line, sized to a flagship floor's appetite. Black multipacks keep the cost per page down where volume is relentless; a five-black pack is reasonable here in a way it would not be for a quiet workgroup. Colors are a one-at-a-time purchase — the panel names the empty one, you replace that one. Reach for the multi-color sets when commissioning the machine, when a department inherits it and wants the cabinet reset, or when your stock report shows several colors converging on empty in the same month.

Chip, toner and everyday use

Every cartridge's chip hands its rated life to the printer at installation, so a correctly seated unit shows an honest remaining-pages estimate from the first job. Two habits protect that accuracy: keep spare cartridges sealed and stored flat at room temperature, and never swap a cartridge mid-job unless the machine has stopped for it — partial swaps confuse nobody, but an interrupted long job is its own waste. The up-to figures are ISO/IEC 19798 ratings; treat them as the ceiling for light coverage and plan the color shelf for the heavier reality of presentation and A3 work.

Frequently Asked Questions

What toner does the TASKalfa 5551ci use?

The TK8507 set: TK8507K black up to 30,000 pages and TK8507C, TK8507M, TK8507Y up to 20,000 pages each, each ordered under its own number as it runs low.

Did the refresh from the 5550ci change the cartridges?

No. The 5551ci carries the same TK8507 set forward, so departments get the faster engine without relearning supplies or writing off existing stock.

Which of the sets listed on this page should I avoid for this machine?

The TK8309 bundles — they fit the smaller 3050ci and 3550ci models in the family list below. For the 5551ci, stay with the TK8507 cartridges in the main list above.