Epson ACULASER C3800 - Manual (Page 131)

Using the Printer Software with Macintosh 131
EPSON AcuLaser C3800 User's Guide
5. Specify the Binding Margin for the front and back sides of the paper.
6. Select whether the front or back side of the paper is to be printed as the Start Page.
7. Click OK to apply the settings and return to the Layout dialog box.
8. Click Print to start printing.
9. After printing on one side, reload the paper into the MP tray with the printed surface
face-up as shown below. Then press the N Start/Stop button.
Note:
Straighten the paper before loading it. If curled paper is loaded, it may not feed correctly.