Hello BLERO123
No, this machine already has toner in it as basic equipment for approx. 1,000 pages, see here:
https://www.brother.ch/de-ch... under "Technical data" / "Consumables and accessories" / it says: "Supplied toner cartridge - BK 1,000 pages, CMY 1,000 pages".
With the SET offer
Brother MFC-L3770CDW incl. TN-243 Multipack (WLAN, Laser/LED, colour, duplex printing) mentioned by you, you simply have an advantageous price for an additional set with toner.
In general, I wouldn't recommend buying toner in stock, but as needed. I have set myself the following rule when recommending purchases: Toner should not be older than 1 year (in the machine). Means: Toner that you need frequently (e.g. black/BK) should be bought in large capacity (~3'000 pages) = TN-247BK. Toner which is used less often (e.g. colours/CMY) should be bought in small capacity (~1'000 pages) = TN-243CMY.
If after 3 years you still have hardly used starter toners in the machine, you probably bought the wrong machine.
Greetings
