Epson AcuLaser C3900N User Manual page 113

Note:
When closing the front cover, press the area of the cover with small projections.
11. Pull out the tray 2.
12. Return the laser lens cleaning tool to its holder on the inside of the tray 2.
13. Close the cover.
AcuLaser C3900 Series
Maintaining the Printer
User's Guide
113