Epson EPL-5700 Reference Manual page 79

c
Caution:
Never touch the developing roller under the flap. Otherwise,
the print quality may be impaired.
7. Hold the cartridge by its handle and lower it into the printer,
making sure that the pins on each side of the cartridge fit into
the grooves inside the printer. Slide the cartridge gently into
the opening until it locks into place.
Maintenance and Transportation
5
5-5