F.theta. lens and image apparatus using the same
Facet reflectance correction in a polygon scanner
Facsimile recorder
Feedback control for laser discharge system
Film conveying apparatus
Film guide for optical scanners
Film handling for a laser recorder
Film handling means for a laser recorder
Fixing process controller for electrophotographic recorder
Fluorescent printer head
Focus fiber mount
Focusing mechanism for linescan imaging
Font cartridge adapter
Graphic electric recorder
Graphic forms overlay apparatus
Grounding device for rotary electrical printer and method
Half-tone imaging with flying spot scanner system
Halftone image recording system
Halftone laser recording with plural beams
High density optical recording apparatus