How can I service my Epson CX5400?

When I ellect to print, my Epson CX5400 printer is advising me that parts within the printer are about to reach their expected life and requiure replacemen. It refers me to the operator manual, but I am unable to find any relevent information .

Is there an alternative source for the error code identification, and repare / servicing procedure.

The printer is operation normally .

I would welcome any advice you are able top offer.