A:AnswerPresently I have not had to print double sided.
However, as a notary signing agent I have found the Brother HL-L6200DW, both fast and efficient for handling docs/files that require both letter and legal size printing.
Very pleased.
A:AnswerYes, the Brother HL-L6200DWT will automatically print from the appropriate paper tray if Auto Select is set. Here is an FAQ to help: https://help.brother-usa.com/app/answers/detail/a_id/128817?R3ModelID=HLL6200DWT
A:AnswerThe printer does not do it .
If you print from Adobe Acrobat reader select choose paper source by PDF page size. This will select the job of selecting the right paper size for each page
A:AnswerThe HL-L6200DWT includes dual 520-sheet capacity trays for additional capacity or for the flexibility to simultaneously store letter and legal sized paper.