A:AnswerThe Brother MFC-J6930DW printer has a maximum print speed of 35 ppm for black only and 22 ppm black ISO-based max print speed. For more information, feel free to contact Brother Customer Service directly.
A:AnswerEnvelopes can be printed both from Tray # 1 and the back Multi-purpose (MP) tray on the Brother MFC-J6930DW. No, the machine will print from MP tray first.
A:AnswerYes, you can enter custom enlargement percentages. Here’s a link that may help: https://help.brother-usa.com/app/answers/detail/a_id/131569?R3ModelID=MFCJ6930DW
A:AnswerI've used Brother printers for 19 years. I've printed all sizes but not 11 x 17. However, I'm positive it will do a good job.
I'm a big fan of this product.