Dell Projector 1220 - Manual (Page 44)

44 Troubleshooting Your Projector
8 Replace the lamp cover and tighten the one screw.
9
Reset the lamp usage time by selecting "Yes" for Lamp Reset in the OSD
Power Settings of the Advanced Settings menu (see Power Settings of
the Advanced Setting menu on page 36). When a new lamp module has
been changed, the projector will automatically detect and reset the
lamp hours.
CAUTION: Lamp Disposal (for the US only)
LAMP(S) INSIDE THIS PRODUCT CONTAIN MERCURY AND MUST
BE RECYCLED OR DISPOSED OF ACCORDING TO LOCAL, STATE,
OR FEDERAL LAWS. FOR MORE INFORMATION, GO TO
WWW.DELL.COM/HG OR CONTACT THE ELECTRONIC INDUSTRIES
ALLIANCE AT WWW.EIAE.ORG. FOR LAMP-SPECIFIC DISPOSAL
INFORMATION, CHECK WWW.LAMPRECYCLE.ORG.