Frequently Asked Questions
The cartridge I pulled out is stamped 1T02MNBUS0. Is this the same magenta?
Yes — 1T02MNBUS0 is the full Kyocera part number for this cartridge, and TK-8602M is the short family marking for the same unit. Both codes refer to the magenta only. Each color in this series carries its own code, so matching the full string on your old cartridge is the surest way to know the replacement in the box is the color you actually ran out of.
Brochures are coming off the run with orange reds and gray-looking skin. Is magenta to blame?
Almost certainly. Magenta is the color that gives reds their depth and keeps skin tones natural, so a fading magenta shows up first in exactly those places, while blues and greens can still look passable. Print the color test pattern from the panel: if the magenta block is pale, streaked or banded while the others are solid, the cartridge is spent and this is the replacement it needs.
Do I have to stop the whole machine and change all four cartridges?
No. Pause the job, open the front cover on the FS-C8650DN and swap the magenta slot on its own. The black, cyan and yellow cartridges stay where they are, the machine recalibrates the one new unit, and the run continues from where it stopped. There is no need to replace colors that still have life in them.
The first pages after fitting look patchy. Should I be worried?
Usually not. Check two things first: the protective seal must be fully pulled out before the cartridge goes in, and the unit should be pushed in until it sits firmly home. Then print a handful of full-color pages — a fresh cartridge needs a short run for the toner to distribute evenly, and the color normally settles within the first several sheets.
What does the 20,000-page figure actually mean for our reorder timing?
It is the cartridge's rated yield at standard page coverage, and it is the number to plan around rather than a promise for every job. A department running heavy full-color coverage — dense graphics, solid backgrounds, photo work — will work through it faster than the rating suggests. On a high-volume machine, the practical approach is to reorder when the low-toner warning appears rather than after the slot runs dry mid-batch.
What protection comes with this cartridge if something is wrong with it?
Every cartridge is covered by a 1-year warranty with 1-year free returns under our shipping & returns policy. If a unit arrives damaged or fails early in its rated life, contact us and we will put it right — you are not left carrying the cost of a faulty cartridge.
How can I be certain the new magenta fixed the brochures before a full run goes ahead?
Reprint the exact page that exposed the problem — the brochure spread with the orange reds and gray skin — and compare it side by side with the faulty copy. With a healthy TK-8602M in the slot, reds regain their depth and faces look natural again. Checking one known page first is far cheaper than discovering halfway through a long run that something else was wrong.
What does this cartridge cost per page at its rated yield?
The TK-8602M is priced at $102.48 against a 20,000-page rating, which works out to roughly half a cent — about 0.51 cents — per page at standard coverage. Dense full-color work spends the cartridge faster and lifts the real cost per page, but for planning color budgets on the FS-C8650DN the rated figure is the right baseline to work from.
While the magenta is being changed, what else is worth a quick look?
The levels of the other three slots. A magenta swap on the FS-C8650DN takes a moment, and that same pause is the natural time to see whether black, cyan or yellow is approaching its own warning. Catching the next low cartridge during a change you are already making is what keeps a high-volume machine from stopping twice in the same week.
What should we do with the spent magenta cartridge?
Keep it to one side until the replacement has proved itself, and if the unit failed early rather than simply emptying, hold on to it: every cartridge here carries a 1-year warranty with 1-year free returns, and the returned unit is part of putting things right. A cartridge that printed its full life can then leave with your normal office disposal arrangements.
About This TK-8602M Magenta Cartridge
This listing is the single magenta cartridge for the Kyocera FS-C8650DN: part number 1T02MNBUS0, marked TK-8602M, rated at 20,000 pages and priced at $102.48. It is one cartridge, not a set — order it when the test pattern shows the magenta block fading while the other colors still print cleanly, and fit it on its own without disturbing the rest of the machine. It belongs to the Kyocera-Mita compatible range on this store. Orders ship from our warehouses in IL, PA, GA and CA, and if you want the code on your old cartridge checked before you buy, support is available Monday to Friday, 9 AM to 5 PM CST.
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