Clever Supplies brand products are made in the USA! Why pay more for cheaper product with a high defective rate? You will end up having to send it back to the manufacturer. Your time is valuable. Get a quality product that you KNOW will work. Purchase the Clever Supplies Compatible for Kyocera-Mita TK312 Black Toner Cartridge and experience the difference! All Clever Supplies brand products are backed by '100% Quality Satisfaction' 1 year warranty against defects in materials and workmanship for all toner products. Free tech support for any problems for all Clever Supplies brand products. The use of Clever Supplies brand replacement laser toner cartridges and supplies does not void printer warranty. Premium Quality Replacement Toner Cartridge is made by ISO9001 Certified Factory to Meet or Exceed OEM Standards. These units are manufactured 100% brand new with all new parts including OPC drums, wiper blades, a smart chip and other internal parts, they are an economical alternative to expensive OEM TK312 Compatible Toner Cartridges. The Compatible Toner Cartridges will produce the same amount of page yield as an OEM cartridge would. This is a Compatible for Kyocera-Mita TK312 Toner Cartridges Black guaranteed to perform with Kyocera-Mita Laser Printers. It replaces the original Kyocera-Mita TK312 Black. The use of compatible replacement Cartridges and supplies does not void Printer Warranty. Our Compatible for TK312. Cartridge is a replacement for OEM Kyocera-Mita. We offer a 100% Quality Satisfaction Guarantee on our Compatible for TK312 Laser Toner Cartridges and supplies. For use in the following printers: FS-2000D, FS-3900D, FS-3900DN, FS-3900DTN, FS-4000DN, FS-4000DTN
Frequently Asked Questions
How do I confirm TK312 is the cartridge my printer takes?
Look at the label on the cartridge you are about to pull out — TK312 is printed right on it, and the same code shows in the printer's supply status. If both agree, this single black cartridge at $71.96 is the correct replacement, no guesswork involved.
Which printer models use this cartridge?
This one serves the FS-2000D along with the FS-3900D, FS-3900DN, FS-3900DTN, FS-4000DN and FS-4000DTN. Six departmental models, one shared black cartridge — that is the whole list.
What should I expect from the 12,000-page yield?
That figure comes from standard test coverage, the kind of fill you get from memos, invoices and reports. A single cartridge rated at 12,000 pages will carry a typical workgroup printer a long way; dense graphics and heavy shading will bring the real count down.
Do I need a technician to install it?
No. Open the front cover, slide the old unit out, seat the new TK312 until it clicks, and close the cover. The job takes a couple of minutes and no tools at all.
What if my first prints look faint?
Remove the cartridge and rock it gently from side to side so the toner settles evenly, then run several test pages. If output is still poor, you are covered by a 1-year warranty and free returns for a full year, and our support team answers Monday through Friday, 9 AM to 5 PM CST.
How quickly will it get to me?
Your order ships from whichever of our warehouses in IL, PA, GA or CA is nearest to you. Delivery windows and the full return procedure are spelled out on our shipping and returns page.
What does this cartridge cost per printed page?
At $71.96 against a 12,000-page rating, a TK312 works out at roughly 0.6 cents per page under standard coverage. That is the honest planning figure for a workgroup budget: light memo traffic lands close to it, while dense reports and heavy shading push the real cost per page up because the same cartridge simply covers fewer sheets.
The low-toner warning appears but pages still look clean — what should I do?
Treat the warning as your ordering signal rather than a stop sign. The TK312 still has useful life left when the message first shows, so keep printing, but place the replacement order at that point instead of waiting for faded output. On a departmental machine shared by several people, that habit is the difference between a planned swap and a printer standing empty mid-job.
Is it worth keeping a spare on hand if I normally buy singles?
For a shared FS-series printer it usually is. A sealed TK312 waits on the shelf without any attention, and when the installed cartridge finally fades, the changeover takes minutes instead of the days a fresh delivery needs. Offices that print sporadically can happily order as needed; a machine the whole department leans on earns its spare.
What should I do with the old cartridge once the new one is in?
Put the spent TK312 back into the packaging the new cartridge arrived in so toner residue stays contained, then pass it to whatever recycling route your office already uses for electronic and office consumables. Avoid breaking the unit open or leaving it loose in general waste — boxed and intact is how empties are expected to travel.
About This Cartridge
This is one black TK312 toner cartridge from Kyocera-Mita, built for a single-printer replacement: your FS-series machine has run dry, and this is the unit that brings it back. It is rated at 12,000 pages, swaps in by hand in minutes, and sells for $71.96. Behind it stand a 1-year warranty and 1-year free returns, so ordering a single cartridge carries no risk if anything turns out wrong.
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