Epson PM-401 Operation Manual page 36

PM-401 Operation Guide
F
Push the tab to unlock the ink cartridge holder, and then remove the cartridge diagonally.
G
Insert the ink cartridge diagonally into the cartridge holder and gently push it down until it clicks into place.
c
Important:
Insert the ink cartridge in the correct direction. If the cartridge is inserted in the wrong direction, the insertion
area may be damaged and the printer may not be able to print.
H
Close the inner cover, and then press the x button.
Replacing Ink Cartridge
36