Canon Kabushiki Kaisha

Tomohiro Maekawa

Kaoru Kumagai

Masahiko Igaki

Richard Nibley

Masahiro Rachi

An information processing apparatus has a keyboard including a single, mode designation key, a display having display areas for displaying groups of operation modes of similar nature, a memory for storing input information and a designated operation mode, a non-volatile memory for saving mode information, and a controller for controlling the operation sequence of the apparatus. A desired operation mode can be designated with simple key input operation.

Information processing apparatus for displaying a plurality of modes of

An optical encoder comprising: an optical scale having a light-transmitting portion and a non-transmitting portion the non-transmitting portion being composed of a slanted face an incident angle of incoming light to which is set larger than the critical angle, the both portions being alternately formed on a protruding mark area formed on a part of a translucent member; light projecting device for illuminating the optical scale; and photoelectric converting device for converting the light, modulated by the optical scale, into electrical signal.

Optical encoder including transparent substrates having formed

An impact-type recording apparatus is disclosed. The apparatus of this invention comprises: a platen for supporting a recording medium; hammer means guided for reciprocal movement between a strike position where the hammer means strikes a character element to force it against an inked ribbon and a recording medium supported on the platen and a stand-by position where the hammer means is kept apart from the platen; energizing means for generating a force acting to move the hammer means from the stand-by position to the strike position; and control means for actuating the energizing means while the hammer means is being moved from the stand-by position to the strike position for striking purposes and while the hammer means is being moved from the strike position to the stand-by position for returning purposes. This construction enables the high-speed operation of the printing mechanism to be carried out with a low level of noise generation.

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Yokohama, Japan

Tomohiro Maekawa