Canon Kabushiki Kaisha

Casio Computer Co., Ltd.

Ichiro Kohno

Hiroshi Nobuta

Junji Shiota

Yoshihiro Kawamura

Katsuzo Kaminishi

Hideki Kamada

Kazuyoshi Arai

Satoshi Kanemitsu

A printer head substrate having a silicon substrate on which heat generating elements and partitions are formed and an orifice plate which adhered to the partitions is placed on a stage of a helicon-wave dry etching system. Helicon-wave dry etching is performed while cooling the printer head substrate by allowing a coolant gas to be intervened between the substrate and the stage. This allows multiple orifices of a desired and adequate shape to be simultaneously and quickly bored in the orifice plate even if a thin film sheet having adhesive layers adhered to both sides thereof is used as the orifice plate, thereby improving the working efficiency.

Method of manufacturing ink-jet printer head

In a method of manufacturing an ink-jet printer which uses a thin film sheet having adhesive layers respectively formed on the top and bottom sides, as an orifice plate, orifices are formed in the ink-ejecting side of the thin film sheet after the adhesive layer on that ink-ejecting side has been removed. This prevents the formation of the orifices from being adversely affected by any otherwise residual of the adhesive layer and can thus permit accurate formation of orifices of a desired shape. Even if helicon-wave dry etching which ensure fast etching using high-power energy is used to form orifices, therefore, no adhesive layer is thermally expanded to be a residual so that multiple orifices can be formed simultaneously and quickly.

Disclosed is a compact, light-weight facsimile apparatus which is reduced in cost, furnished with a large storage capacity and provided with flexibility in terms of handling by utilizing a magnetic tape recording/playback mechanism as a storage source of image data and providing an image data memory on the magnetic tape. Tape-drive control and format are so designed that a code representing that image data has been stored on the tape, management information, which includes transmission/reception control information and information indicating storage position, and the image data are stored on the tape based on a prearranged storage format.

Facsimile apparatus

Facsimile apparatus having image memory device

Growing community of inventors

Tokyo, Japan

Ichiro Kohno