Dell 1210S Projector - Manual (Page 48)

9 Reset the lamp usage time by selecting "Yes" for Lamp Reset in the OSD Lamp
tab (see Lamp menu on page 34). 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.
Troubleshooting Your Projector 48