Kenichi Wada

System for recognizing interchangeable articles

Image display having control system for periodically effecting a change of position of virtual image

Method for measuring the quantity of light emergent from an optical tip array and image forming apparatus provided with an optical tip array

Recording apparatus including a memory into which information is written in a particular order and from which memory information is read in the reverse order

Image forming apparatus provided with a plurality of light signal emitting heads

Image stabilizing control method offering a short waiting time for operation recovery and image forming apparatus incorporating said control method

Image forming apparatus having a movable sheet receiving tray

Method of driving electro-optical light shutter for use in recording apparatus

Light printer with photoelectric light quantity control means

Optical element and light shutter device using the same