Frequently Asked Questions
Which numbers on my old cartridge confirm this is the correct replacement?
Check the label on the cartridge you are removing. If it carries part number 1T02L10US0, or the TK-3122 designation Kyocera also prints for this cartridge, this single is its match. It is the black toner cartridge built for the FS-4200DN departmental printer.
What exactly do I receive with this order?
One factory-sealed black toner cartridge, ready to fit as soon as its protective packaging comes off. Nothing else needs to be bought or assembled — the cartridge is a complete, self-contained unit.
What does the 21,000-page rating mean in practice?
It is the estimated number of pages this one TK-3122 cartridge can produce before it runs empty, worked out at standard page coverage. On a busy departmental machine turning out statements, pick lists and reports every day, that rating translates into a long stretch between changeovers rather than a monthly chore.
How do I fit the new cartridge?
Open the printer's top cover and lift the old cartridge out. Take the new 1T02L10US0 from its bag, rock it gently from side to side five or six times so the toner inside levels out, peel away any protective strips, then lower it into the slot until it seats firmly and close the cover. The whole swap takes a couple of minutes, with no tools and no service visit.
The first pages after fitting look pale. Should I worry?
Almost certainly not. Toner can settle to one end of the cartridge during shipping, so take the unit back out and rock it side to side again — density normally recovers straight away. Also check that a toner-save or economy mode is not switched on in the driver. If output is still faint after that, get in touch and we will put it right under the warranty.
What protection comes with this cartridge?
It is covered by a 1-year warranty and 1-year free returns, as explained on our shipping & returns page. Orders are dispatched from whichever of our warehouses in IL, PA, GA or CA is nearest to you, and our support team is available Monday to Friday, 9 AM to 5 PM CST.
What does this cartridge cost for each page it prints?
At $36.72 with a rating of up to 21,000 pages, the TK-3122 (part number 1T02L10US0) works out at roughly 0.17 cents per page at standard coverage. That is the figure to budget with on an FS-4200DN: everyday statements and reports sit close to it, and only sustained heavy coverage moves the real cost per page meaningfully upward.
Can I buy this cartridge ahead of time and keep it until the machine runs dry?
Yes — buying ahead is exactly what a sealed cartridge is good at. Keep the 1T02L10US0 unit in its bag, flat, in a dry cupboard away from direct sunlight and heat, and it waits in full working condition until fitting day. For a departmental printer that cannot sit idle, holding one sealed spare turns a toner emergency into a two-minute swap.
How do I judge when a replacement should be ordered?
Use the machine itself as the gauge: check the page counter against the 21,000-page rating, and treat the first low-toner message as the order point rather than the first faded page. On a busy FS-4200DN the stretch between the warning and truly empty output can be short, so ordering at the warning keeps the next TK-3122 on the shelf before it is needed.
What should happen to the spent cartridge after the swap?
Seal the old 1T02L10US0 unit into the packaging the new cartridge came out of, so any loose toner stays inside, and send it out through the recycling route your office uses for consumables. Do not shake a spent cartridge over a bin or store it loose on a shelf — boxed and intact is the state empties should stay in.
About This Cartridge
Priced at $36.72, this single black cartridge is the no-fuss replacement for an FS-4200DN owner whose machine has simply run dry. It sits in the Kyocera-Mita compatible range at Clever Supplies and carries the full 1T02L10US0 (TK-3122) specification, rated at up to 21,000 pages per cartridge.
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