Microfilm reader/printer

摘要: A microprocessor controlled microfilm reader/printer is arranged to transport a roll of film having all images contained thereon, in distinctive format involving sequentially recorded photographic areas. The has an automatic call feature up, so that any given area may be selected and projected responsive the push button, operation rotary switch, or both. special bar code printed along edge eliminates need for precise control over synchronized with reading speed. preferably read by optical electronic sensor, which provides positioning input signal enable accurate locating within viewing area.