Epson 74c - Manual (Page 69)

Maintaining and Transporting the Projector 69
10. Position the lamp cover so the arrows on the lamp cover align
with the arrows on the projector. Then slide in the cover until it
clicks into place.
11. Reset the lamp timer as described below.
Resetting the Lamp Timer
You must reset the lamp timer after replacing the lamp to clear the
Lamp Replace warning message. Follow these steps:
1. Connect the power cable and turn on the projector.
2. Press the Menu button on the remote control and select the Info
menu. Then press Enter . You see the following:
1
2
note
Do not reset the lamp timer if
you have not replaced the
lamp. If you do, the Lamp
Hours will not accurately
reflect the number of hours
that the lamp has been used.