Printers come in all sizes and with all sorts of mechanisms. The simplest way to know how to print on both sides of a paper is to print two documents on a same sheet and use the result as a reference to manage the paper.
  1. Let's go ahead and just do that. Use the "Test Print" buttons for this. Print "Test Print 1" now and keep the paper source tray you choose in mind.


  2. After you're done, reinsert the printed page back into the same source tray. Do not flip or rotate it in any way.
     
  3. If your printer's source tray and output tray have a 90° difference, turn the page as you consider appropriate. Just remember to add this page turn when printing the real document.

  4. Now do “Test Print 2”

  5. Compare your result with the following table. Depending on the result is the rotation or flipping to do before printing the second side of the real document.
1
2
3
4
1 1 1 1
Flip horizontally
Flip vertically
Rotate 180° Leave as it is

Notes:

  • Portrait and landscape prints have different results.
    For landscape documents exchange actions 1 with 2 and 3 with 4 correspondingly.

  • It's not advised to exchange trays halve way of a two sided print.
  • Each printing tray uses a different mechanism to manage paper. You may need to repeat the test for each tray of each printer you use.