A:AnswerYes it is compatible with Windows 8, also 10. It uses 4 cartridges. I can't answer about the Asus computers. I have an Acer, works great and can print remotely.
A:AnswerThe USB connection will only support a single computer (either Mac or PC). But hook it up to your network via Ethernet or Wirelessly and you can connect as many computers as you can find. If it has to be done via USB, consider using Printer Sharing on whichever machine you connect to it.
A:AnswerQuality is a subjective issue but if you use photo stock, I think you will be pleased with the results. Regarding an SD card, there absolutely is a slot. The attachment is from page 115 of the manual.
A:AnswerI really like the single cartridges as you only have to replace the color ink that you just ran out of. The ink is fairly cheap so it's not a real big deal. I hate tossing a all in one cartridge when it's out of just one color. I really like this printer.
A:AnswerI guess if you get an inverter you could use it in the car. Wirelessly though? Probably not. I don't think it handles peer-to-peer connections. Connect up a USB cable though and you're good to go
A:AnswerTry this link to download a pdf:
http://support.brother.com/g/b/manuallist.aspx?c=us&lang=en&prod=mfcj885dw_us&flang=English&type3=10103&type2=5
When in doubt, you should find applicable documentation on the manufacturer's website.