Canon Kabushiki Kaisha

Canon Denshi Kabushiki Kaisha

Toshio Hagiwara

Yoji Sugiura

Tadashi Arai

Toru Okumura

Kimio Handa

Syunichi Nakahara

An ink-jet printing apparatus which is capable of maintaining a predetermined clearance between a printing surface of a printing object and an ink-jet head, includes a printing object mounting portion, on which the printing object is mounted, an ink-jet unit provided so as to be capable of relative movement in an opposing direction with respect to the printing object mounting portion, and mounting an ink-jet head which can oppose the printing surface of the printing object, shifting means for shifting the ink-jet unit mounting portion relative to the printing object mounting portion in the opposing direction, and a clearance adjusting sensor provided at the side of the ink-jet unit mounting portion so as to be capable of contacting the printing surface of the printing object. The shifting means is driven in a direction where the clearance adjusting sensor is caused to to contact the printing surface of the printing object, the shifting means then is driven in the opposite direction when the clearance adjusting sensor comes into contact with the printing surface of the printing object, and relatively shifting the ink-jet unit mounting portion is shifted relative to the printing object mounting portion in a direction where the clearance adjusting sensor moves away from the printing surface of the printing object by a predetermined magnitude.

Ink-jet printing method and apparatus therefor

A mirror box formed of metal serves as a metallic portion constituting together with a plastic portion an essential part for imparting strength characteristics to a camera body. The metallic portion is provided with a base for a lens mount and with similar parts for assembling other element. During molding, some of the metallic segments of the lens mount base are inserted as a framework into the plastic portion so that the metallic and plastic portions are constructed in the form of a unit. This unit is then assembled with other portions as the base unit of the essential part to complete a single lens reflex camera body.

Single lens reflex camera body

Growing community of inventors

Chichibu, Japan

Toshio Hagiwara