Make certain you have read the Toshiba TLP-T721U Projector w/ Document Camera manual thoroughly before attempting the Toshiba TLP-T721U Projector w/ Document Camera bulb replacement on your Toshiba TLP-T721U Projector w/ Document Camera. Without touching the surface of the Toshiba TLP-T721U Projector w/ Document Camera lens, remove the lens tube and set it aside. Write down the number from inside the tube's inner lip for the purpose of make, model or serial number for any future need to buy Toshiba TLP-T721U Projector w/ Document Camera replacement parts. Your bulb should be sitting just beyond the opening of the Toshiba TLP-T721U Projector w/ Document Camera body. Reach in with two fingers and disconnect the Toshiba TLP-T721U Projector w/ Document Camera bulb. Reverse these steps to re-assemble your Toshiba TLP-T721U Projector w/ Document Camera. This concludes the Toshiba TLP-T721U Projector w/ Document Camera review - be sure to read the entire Toshiba TLP-T721U Projector w/ Document Camera manual.