This technical manual covers an opaque projector designed for educational and presentation purposes. Known for its robust construction and user-friendly operation, it utilizes a glass lens system and a reflective illumination system to project images. Its features include manual focus control via a rack and pinion mechanism, an adjustable projection stage, and fan cooling for sustained use. The projector is designed for portability with a carrying handle and a folding design, and its construction typically combines metal and plastic components for durability.

This manual provides comprehensive guidance for the maintenance and operation of the projector. It details essential procedures such as user-replaceable lamp replacement and careful lens and mirror cleaning. Technical specifications, including projection technology and operational features, are outlined to ensure a thorough understanding of the device. The English-language manual, presented in format and comprising 44 pages, serves as an indispensable resource for owners and technicians to maintain the projector's optimal performance and longevity.