FAX L390

For the Canon FAX L390, the toner question has a short answer: the Canon S35 (7833A001AA), in black, is the only cartridge this laser fax machine uses. Everything on this page is that one cartridge, sold singly and in packs of two, three, five and ten, with a premium-quality five-pack alongside.

Because there is exactly one cartridge to buy, the L390 rewards simple arithmetic. Count how many cartridges the machine went through last year, and the right pack size is the one that covers that count with a spare left over. Buying ahead in a multi-pack also flattens the cost per cartridge, which matters on a machine whose whole job is turning toner into received documents, day after day, whether anyone is standing beside it or not.

Toner Cartridges for FAX L390

The table names each listing by what the box contains; every row is the S35 cartridge described above.

Cartridge	Color	Page Yield
Canon S35 (7833A001AA) — black cartridge, single	Black	See product page
Canon S35 (7833A001AA) — black cartridges, pack of 2	Black	See product page
Canon S35 (7833A001AA) — black cartridges, pack of 3	Black	See product page
Canon S35 (7833A001AA) — black cartridges, pack of 5	Black	See product page
Canon S35 (7833A001AA) — premium quality cartridges, pack of 5	Black	See product page
Canon S35 (7833A001AA) — black cartridges, pack of 10	Black	See product page

Which cartridge should you buy?

Match the pack to your yearly burn rate. A single S35 at a time suits a quiet line. The pack of 2 and pack of 3 fit most offices: they keep the machine fed and a spare sealed without tying up much shelf space. Choose the premium pack of 5 when the L390 receives fine-print documents — contracts, forms, small type — where a denser, cleaner impression is worth paying for, and the pack of 10 when the count is high enough that reordering itself has become the chore.

Chip, toner and everyday use

Install with the machine powered on and push the cartridge home until it seats; the L390 reads the cartridge on insertion, and a half-seated unit can trigger a toner message that has nothing to do with how much toner remains. Between changes, nothing needs servicing: keep the paper path free of dust, and store unopened cartridges flat in a cool spot. When output thins, rock the cartridge gently to redistribute the toner before deciding it is empty — settled toner imitates an empty cartridge remarkably well.

Frequently Asked Questions

What toner does the Canon FAX L390 take?

The Canon S35, part number 7833A001AA, in black. There is no color cartridge and no separate high-yield code for this model on this page.

The cartridge in my machine says 7833A001AA, not S35. Same thing?

The same cartridge. S35 is the cartridge code and 7833A001AA is Canon’s full part number for it; the listings here carry both, starting with the single cartridge.

Standard or premium 5 pack — which suits a fax machine?

For routine received pages, the standard 5 pack is the economical pick. The premium 5 pack earns its difference when incoming documents are dense or small-printed and legibility matters page after page.