CS 2550
The CS 2550 is Kyocera's monochrome copier-system multifunction for offices where paper workflows still center on copying and printing. Copy, print and scan come together in the sturdy CS-series chassis built for daily departmental use, and the supply is a long-yield one: the TK-421 (TK421) black toner cartridge, rated at approximately 15,000 pages per ISO/IEC 19752. Thousands of pages between replacements keep the machine available instead of waiting on supplies.
Dependability is the brief this machine answers. A departmental unit earns trust by being ready every morning, and a ~15,000-page cartridge supports that rhythm — toner changes become occasional events on a busy calendar rather than weekly chores. As a partner for black-and-white document production, the CS 2550 pairs that sturdy chassis with one simple, shared supply number.
Toner Cartridges for CS 2550
- TK-421 (TK421) — Black, 2 pack, ~15,000 pages per cartridge
- TK-421 (TK421) — Black, 4 pack, ~15,000 pages per cartridge
Which cartridge should you buy?
Every option here is the TK-421; the packs only change how many cartridges land in the cabinet. The 2 pack, about 30,000 pages in total, covers a department that copies and prints daily and wants a spare always within reach. The 4 pack — roughly 60,000 pages — fits central supply rooms and multi-machine sites, trimming the cost per page and turning toner into a twice-a-year purchase. Pick the depth that matches how fast your team burns through 15,000-page units.
Chip, toner and everyday use
Install the TK-421 until it seats so its chip registers and the CS 2550 can track remaining toner accurately. Treat the ~15,000-page figure as an ISO/IEC 19752 benchmark at about 5% coverage: dense copies and bold graphics consume more per page than plain text. When a cartridge nears empty and prints lighten, a gentle side-to-side rock can level what toner remains for a few more jobs. Store replacements sealed and flat, away from heat and sunlight, so the next swap is a two-minute task.
Frequently Asked Questions
Which toner does the CS 2550 use?
The TK-421 black toner cartridge, rated for approximately 15,000 pages per ISO/IEC 19752 at about 5% coverage.
Do you carry multi-packs for the CS 2550?
Yes — the TK-421 is stocked here as a 2 pack and a 4 pack. Stocking up lowers the cost per page and keeps a departmental machine from idling on an empty cartridge.
Is the CS 2550's cartridge shared with other models?
Yes. The KM 2550 listing and the KM-2550 run the same TK-421, so one toner covers the whole 2550 family.
What shortens a cartridge's life in practice?
Coverage. Pages dense with text, images or bold graphics use more toner than the 5% benchmark page, so copy-heavy workflows will see fewer than 15,000 pages per cartridge.