Question about Brother Mfc-L2750dw

It is possible to change between some languages, german language is available. You will be asked at the beginning of installation, but you can change also later...
How danielgram is answering, there is DE, IT, FR, EN. May be according the version for the delievering region (Europe, Asia, Amerika...) the amount and of languages is changed.
If you buy this device for Europe, you will get at minimum these languages DE, IT, FR, EN.
Differences excluding the languages may be also by the FAX-feature in accordance to land/region of delivery.

Mine can be switched: DE, IT, FR, EN

Yes, there are several languages available, including French.

The language is adjustable