Epson 5550C Product Information Guide - Page 3

EPSON PowerLite 5550C/7550C Multimedia Projector Projector Placement Guidelines To get the best results when projecting your images, position the projector at the proper height and distance relative to the screen. When projecting from a table or desk, place the projector so the lens is aligned as closely as possible with the bottom of your screen: For example, here are the measurements for three installations: Image size (diagonal) 300 inches* (762 cm) 200 inches (508 cm) 100 inches (254 cm) Horizontal distance from projector to screen Minimum 494 inches (12.6 m) Maximum 639 inches (16.2 m) 328 inches (8.4 m) 429 inches (10.9 m) 163 inches (4.2 m) 213 inches (5.4 m) * For an image size of 300 inches, the projector may be up to 53.7 feet away from the screen, depending on the setting of the zoom ring. When projecting from the ceiling, align the lens as closely as possible with the top of your screen: The distance between the projector and the screen determines the actual image size. To determine the exact distance required for a particular image size (or to determine the size of an image at a particular distance), use the following formulas. (Remember that the size of the image can be changed by rotating the zoom ring.) To determine the minimum and maximum diagonal size of an image when you know the projection distance: t Inches: Maximum image size = (0.6038 × projection distance) + 1.8898 Minimum image size = (0.4631 × projection distance) + 1.4000 t Centimeters: Maximum image size = (0.6038 × projection distance) + 4.8001 Minimum image size = (0.4631 × projection distance) + 3.5560 To determine the projection distance when you know the diagonal size of the screen image: t Inches: Maximum projection distance = (2.1593 × image size) - 3.0229 Minimum projection distance = (1.6562 × image size) - 3.1291 t Centimeters: Maximum projection distance = (2.1593 × image size) - 7.6782 Minimum projection distance = (1.6562 × image size) - 4.2068 Using the Remote Control The remote control uses a line-of-sight infrared signal. To use the remote control, point it toward the infrared receiver located at the front of the projector. To be able to use the remote control as a cordless mouse, connect the projector to your computer with the mouse cable (PS/2 or ADB-Macintosh) that came with the projector. You can use the remote control up to about 32.8 feet (10 meters) from the projector. (This distance may be shorter if the remote control batteries are low.) You must also hold the remote control so that it is within ± 30° left or right of, and ± 15° higher or lower than, the infrared receiver. pointer button top multi-purpose button bottom multi-purpose button Note: If the projector doesn't respond to remote control commands, a strong light source (such as direct sunlight) may be hitting the infrared receiver. The presence of a certain type of fluorescent light or equipment emitting infrared energy (such as a radiant room heater) can also interfere with the transmission of remote commands. 9/99 PowerLite 5550C/7550C Multimedia Projector - 3