The device can print A3 paper, but it does not support A3 scans or copies directly. The scanner is limited to smaller formats such as A4. However, A3 printouts are possible via a computer.

I think so. If you want A4 on A4. Otherwise the A4 document is printed in the size on A3 paper, if that's what you want. It only has one paper drawer. So you have to change the paper for each file. You can also adjust the file to the paper format in the printer settings. I hope that helped? That's all I know and can do.

Yes, but only with low volume

No, this is a normal Windows LAN printer. It simply supports Apple AirPrint, which I don't use.

Unfortunately, it does NOT do duplex scanning. Scan to folder should be possible (I don't use it, only directly to my computer). Otherwise, and in general, I am very satisfied with the device. In my opinion, the lack of duplex scanning is the only major drawback.

No

220 gr/m2

https://www.brother.fr/imprimantes/imprimantes-jet-d-encre/mfc-j5345dw#specifications https://www.brother.de/drucker/tintenstrahldrucker/mfc-j5345dw#specifications

Hello TheoKlee If you have an account with Digitec, you can record the repair and send the device back to Digitec. They will forward it to the repair centre. Depending on the error / problem, I recommend contacting the Brother support team first (https://www.brother.ch/de-ch/support). You have various options: Telephone, chat or contact form (after the auto-answer by the e-mail bot, simply write back again and attach any photos/documents). Greetings

Yes a set of cartridges is supplied with the printer.

Dear Theo Klee On the Digitec homepage you can compare products. When I compare the models, Brother distinguishes between the two models MFC-J5345DW as the business model and the MFC-J5340DW as the home model. The business model has the option of borderless printing and the ability to process A3, A4, A5, A6, envelope and C5 paper formats. The home model A3, A4. Duplex printing seems to be built into the professional model only. I chose the MFC-J5345DW because of these differences. I think that these are the "decisive" attributes. The purchase price is not a factor. Finished and greetings Richard Leuenberger