Epson SQ-2550 User Manual page 195

Replacing the Ink Cartridge
2. Insert the end of the cartridge with the foil seal into the ink
compartment as shown below. Gently push the cartridge all
the way into the compartment.
3. Close the cartridge compartment cover as shown below and
ON LINE
press the
resume printing.
6-8 Maintenance
button to place the printer on line and