TASKalfa 420i

Departments that push serious paper volume through one shared machine are the TASKalfa 420i's home ground. This monochrome multifunction prints, copies, scans and faxes on Kyocera's long-life drum platform, and it runs on a single supply: the TK-717 (TK717) black toner cartridge, rated at 34,000 pages per ISO/IEC 19752. TK-717 is the North American number for the cartridge European lists call the TK-725, and because the drum is built to serve for the life of the machine under normal use, toner is the only consumable this department ever has to order.
A machine like this earns its floor space by staying available. Nobody in the department plans their week around a toner swap: at 34,000 pages per cartridge, replacements come a few times a year instead of a few times a month, and the print-copy-scan-fax cycle keeps moving without constant attention from IT staff. That low-intervention character is exactly why high-volume monochrome departments standardize on the 420i and stock one cartridge for it.
Toner Cartridges for TASKalfa 420i
| Cartridge | Color | Page Yield |
|---|---|---|
| TK-717 (TK717) — single cartridge | Black | 34,000 pages |
| TK-717 (TK717) — 2 pack | Black | 34,000 pages per cartridge |
| TK-717 (TK717) — 4 pack | Black | 34,000 pages per cartridge |
Which cartridge should you buy?
Every option on this page is the same TK-717 cartridge; the only decision is how many to keep on the shelf. A single cartridge suits a department whose volume is steady and predictable, and it still covers roughly 34,000 pages before anyone thinks about supplies again. The 2 pack doubles that runway to about 68,000 pages and means a spare is already in the cabinet the day the low-toner warning appears. Busy floors and central supply rooms usually take the 4 pack: four cartridges deep, the cost per page drops, and reordering becomes a quarterly chore instead of a recurring interruption.
Chip, toner and everyday use
The cartridge carries a chip the 420i reads to confirm the supply and track remaining toner, so seat it firmly until it locks and let the machine recognize it before starting a long run. Page yields are estimates measured at about 5% page coverage; dense reports, forms and graphics will land lower, which is normal. Before installing a fresh cartridge, a gentle side-to-side shake redistributes the toner inside for even output. Store spares flat, sealed and away from heat, and keep one unopened cartridge in reserve so a warning never turns into downtime.
Frequently Asked Questions
Which toner does the TASKalfa 420i use?
It uses the TK-717 black toner cartridge — the US version of the TK-725 — rated for 34,000 pages per ISO/IEC 19752 at roughly 5% coverage.
Is TASKalfa 420i toner the same as TASKalfa 520i toner?
Yes. The TASKalfa 520i runs on the identical TK-717 cartridge, so shops operating both models stock a single toner for the pair.
Does the TASKalfa 420i need a separate drum unit?
No. The machine uses Kyocera's long-life drum technology, designed to last the life of the printer under normal use. Toner is the only routine consumable you replace.
How long will one TK-717 last in a busy office?
At 34,000 pages per cartridge, most departments change toner only a few times a year. Actual life depends on coverage: text pages at around 5% stretch furthest, while heavy graphics shorten the run.
More printers that use the same cartridges
The TK-717 also feeds these machines in the Kyocera-Mita line: KM-3050, KM-4050, KM-5050, TASKalfa 520i.
