If the image looks like a trapezoid, use the Auto Vertical Keystone (±30°) or the Manual Horizontal Slider (±30°) located on top of the unit to square the edges. 4. Maintenance and Troubleshooting
(and related 2000-series projectors). This high-performance projector is designed for large classrooms and corporate boardrooms, offering high brightness and WUXGA resolution. epson h842b projector manual