Ricoh Company, Ltd.

Hideki Ohtsuki

Takuro Sekiya

Makoto Obu

Tetsuro Hirota

Michio Umezawa

Takayuki Yamaguchi

Mitsuru Shingyouchi

Toshihiro Takesue

Takesada Hirose

A device for outputting video signal includes a magnification alteration processing section that alters the magnification of image data expanded in frame memory in such a manner that the number of pixels in the frame memory and the number of pixels of the display area of a display section are equal. The device further includes a control section for deciding whether or not the magnification alteration processing of the image data by the magnification alteration processing section is to be executed when the image data is being converted into video signals.

Magnification alteration processing method which accords with types of image data and image processing apparatus which uses the method

An ink jet recording apparatus includes a recording head for ejecting droplets of ink and a driving circuit for driving the recording head. The recording head includes a base, a plate on which a plurality of openings are formed; an ink chamber to be filled with ink being formed between the base and the plate; and heater elements, provided in the ink chamber so as to face the openings of the plate, each of which heater elements supplies heat energy to ink adjacent thereto so that the air bubble is generated on each of the heater elements and so that the air bubble grows toward a corresponding one of the openings. An area of each of the openings of the plate is greater than an area each of the heater elements. When the driving circuit activates each of the heater elements, a droplet of ink is ejected due to the air bubble from the corresponding one of the openings of the plate.

Ink jet recording apparatus

Growing community of inventors

Kanagawa, Japan

Hideki Ohtsuki