Epson 740 Series - Manual (Page 126)

Maintenance and Transportation Page 126
7 Lower the new ink cartridge into its holder with the label facing
up and toward the back of the printer.
8 Press down the ink cartridge clamp until it locks in place.
9 If you need to replace the other ink cartridge, repeat the
preceding steps before going on to step 10.
10 Press the R cleaning button and close the printer cover.
The printer moves the print head and begins charging the ink
delivery system. (Even if you don’t press the button, ink
charging begins 60 seconds after you close the clamp.)
The P power light flashes, and the printer makes various
sounds. Charging takes a couple minutes. When it’s finished,
the
P power light stops flashing and stays on.
Caution:
Never turn off the
printer while the
P power light is
flashing, unless the
printer hasn’t moved
or made any noise for
more than 5 minutes.