FS-3900D

Kyocera FS-3900D printer

A step up in Kyocera's departmental range, the FS-3900D combines built-in duplex with a faster engine for high-demand office floors that never slow down. In the US it runs on two black cartridges: the standard TK-312 (TK312), rated for about 12,000 pages, and the high-yield TK-322 (TK322), rated for about 15,000 pages, both per ISO/IEC 19752 at roughly 5% coverage. In Europe the same pair is sold as the TK-310 and TK-320.

This is a printer built for the environment where it rarely gets a quiet moment to rest. Expandable paper options let it grow alongside the department instead of being replaced by it, and the cartridge yields are sized to match that life: at 12,000 pages even the standard cartridge keeps heavy users from swapping supplies in the middle of the week, and the high-yield option stretches the interval further still.

Toner Cartridges for FS-3900D

Cartridge	Color	Page Yield
TK312 — Black, Single	Black	~12,000 pages
TK312 — Black, 2 Pack	Black	~12,000 pages per cartridge
TK312 — Black, 3 Pack	Black	~12,000 pages per cartridge
TK312 — Black, 5 Pack	Black	~12,000 pages per cartridge
TK312 — Black, 10 Pack	Black	~12,000 pages per cartridge
TK322 — Black, Single	Black	~15,000 pages
TK322 — Black, 2 Pack	Black	~15,000 pages per cartridge
TK322 — Black, 3 Pack	Black	~15,000 pages per cartridge
TK322 — Black, 5 Pack	Black	~15,000 pages per cartridge
TK322 — Black, 10 Pack	Black	~15,000 pages per cartridge

Pack sizes shown as plain text are not currently orderable from this page; the linked sizes are the ones sold here. Every cartridge in the table is the same pair of part numbers — TK312 standard and TK322 high yield — in different quantities.

Which cartridge should you buy?

The choice is between the two yields first and the pack size second. If you print heavily, the TK322's 15,000-page rating means fewer swaps and a lower cost per page across the cartridge's life — on a floor that never slows down, swap frequency is the real cost. For lighter use, the TK312 costs less upfront and still carries a 12,000-page rating that outlasts most office cartridges. On pack size, the linked 5-pack of TK312 and 3-pack of TK322 are this page's bulk routes for a shared departmental machine; singles suit a single printer with a predictable appetite. Every cartridge here is a compatible covered by a 1-year warranty and 1-year returns.

Chip, toner and everyday use

Both cartridges are chipped and report their level to the printer, so plan the swap from the display rather than from a fading page. Yields are rated at about 5% coverage; a department printing dense reports all day will see real counts below the headline figures, which is normal and not a defect. When a cartridge nears its end, rocking it gently side to side redistributes the remaining toner and evens out print for a while longer. Keep one spare cartridge on the same floor as the printer — a departmental machine that stops for want of toner usually stops a whole team's morning.

Frequently Asked Questions

Which toner cartridges fit the Kyocera FS-3900D?

Two: the standard TK312 at about 12,000 pages and the high-yield TK322 at about 15,000 pages. They are the US versions of the European TK-310 and TK-320 respectively.

Should I buy the TK312 or the TK322?

For heavy printing, the TK322 — fewer changeovers and the lower cost per page. For lighter or intermittent use, the TK312's lower upfront cost makes sense and its 12,000-page rating is still generous.

Can I use the TK-332 cartridge in the FS-3900D?

No. The TK-332, at about 20,000 pages, is built for the FS-4000 series — machines such as the FS-4000DN and FS-4000DTN. The FS-3900D takes the TK312 and TK322 only.

Why are some pack sizes in the table not linked?

Those sizes are not currently offered for order on this page, so they are listed as plain text for completeness. The linked sizes are the ones you can buy here.