Frequently Asked Questions

What exactly is inside the 2 pack?

Two TK352 black cartridges, each one sealed on its own inside the box. That matters: you install the first today and the second stays factory-sealed on the shelf until the machine asks for it, so nothing dries out or gets dusty while it waits. The pair sells for $47.48.

Why buy two at once instead of ordering when the warning appears?

Because the low-toner warning rarely arrives at a convenient moment. With a sealed spare already in the cabinet, a cartridge change is a two-minute pause instead of a stalled print queue while a delivery makes its way to you. The order that places the spare in the machine is also your signal to reorder.

Can the two cartridges go into two different printers?

Yes. The TK352 is the black cartridge for the FS-3040MFP and the related FS-3140MFP, FS-3540MFP and FS-3640MFP, so a 2 pack can be split between two of those machines, or kept together as install-plus-spare for one busy unit.

How long can the sealed spare sit before I use it?

A long time, provided it is stored sensibly: sealed, flat, in a cool dry spot away from direct sun and heat sources. Toner does not spoil the way liquid ink does, so a spare bought this quarter is still ready when the installed cartridge finally runs out months later.

If one of the two cartridges is faulty, do I return both?

No — coverage works per cartridge. Each TK352 carries its own 1-year warranty and the pack is covered by 1-year free returns, so a problem unit is handled on its own while the good one stays in your machine. Support hours are Monday through Friday, 9 AM to 5 PM CST.

Where does my order ship from?

We stock these in IL, PA, GA and CA and dispatch from the warehouse closest to your address. Delivery estimates and return instructions are collected on our shipping and returns page.

How does the pair's price break down per cartridge and per page?

The 2 pack is $47.48, which is $23.74 per TK352 cartridge. With each cartridge rated at 15,000 pages, the pair carries 30,000 rated pages in total, putting the running cost at roughly 0.16 cents per page at standard coverage. That per-unit figure is the honest comparison point when you weigh this pack against buying cartridges one at a time: same cartridge, same rating, lower cost for committing to two at once and keeping the spare sealed until its turn.

Will heavy, dense printing change how far the pair goes?

Yes — coverage is the variable behind every yield rating. The 15,000-page figure assumes standard test pages of ordinary text. An office printing dense forms, shaded tables or logo-heavy pages lays more toner on every sheet, so each cartridge finishes sooner and the pair's 30,000 rated pages become a smaller real total. Light correspondence stretches the pair further. Neither outcome indicates a problem; it just means your reorder rhythm should follow your actual page mix rather than the headline number.

Both of our printers asked for toner in the same week. How do we handle that with one 2 pack?

Put one cartridge in each machine — the TK352 serves the FS-3040MFP, FS-3140MFP, FS-3540MFP and FS-3640MFP, so the pair splits across any two of them without any difference in fit. Both printers are back in service within minutes. The trade-off is that your shelf is now empty, so treat that same day as the reorder moment: place the next order while both machines still have full cartridges, and the buffer rebuilds itself before either runs low again.

How can we learn how fast each of our machines actually uses a cartridge?

Write the install date and the machine's page-counter reading on each box as it goes in. When that cartridge comes out, the counter difference is its true yield in your office — usually more informative than any rating. After one cycle per machine you will know which printer is the heavy drinker, and you can park the sealed spare nearest to it and set your reorder timing from real numbers instead of estimates.

About This 2 Pack

Two compatible Kyocera-Mita TK352 black toner cartridges for offices that would rather change a cartridge than wait on one. Each cartridge is rated at 15,000 pages and fits the FS-3040MFP, FS-3140MFP, FS-3540MFP and FS-3640MFP. Buy the pair for $47.48, run one and shelve the sealed spare — every unit is backed by a 1-year warranty and 1-year free returns.