A:AnswerWhen I purchased mine it came with one of each color. What's great about this printer is that it does come with separate cartridges for the colors so when you run out of one color you don't have to throw the rest out just to refill the one.
A:AnswerYes this can print two sided on a Mac. In the standard printer dialog box there is a check box marked two – sided. Check for duplex printing or leave unchecked for single side only.
A:AnswerThat is one thing that is missing. No SD card reader. You can email things to the printer or scan things directly to your computer using wifi. I am not sure why they did not include that feature in the printer. I miss that feature.
A:AnswerI use cardstock in my Epson WF-2650 a lot. Just take out the regular paper and put a quantity of cardstock in. It'll work just fine. It's honestly the only thing that worked well in this printer.