Canon Kabushiki Kaisha

Ko Hasegawa

Yuichi Watanabe

Nobuyuki Kuwabara

Yoshikazu Shibamiya

Osamu Asakura

Yoshio Uchikata

Tadashi Hanabusa

Haruhiko Moriguchi

Hideo Fushimoto

Noboru Shimoyama

Kenji Kawazoe

Toshihide Wada

Shigeru Mizoguchi

Kazuyoshi Odagawa

Katsuhiro Watanabe

Akihiko Sukigara

An image recording apparatus capable of recording an image in different color tones and an ink sheet cassette suitable for use in such an image recording apparatus. The image recording apparatus, when used in combination with the ink sheet cassette, is capable of producing clear image in different recording color tones. The recording color tone can be changed by changing, in accordance with the color tone data, the condition of separation of the ink sheet from the recording medium.

Image recording apparatus and ink sheet cassette usable in the image

A driving method for a thermal head having plural heat generating elements for image recording on a recording medium comprises a step of detecting the presence of past, present and future heating signals in an area, in at least four directions around the heat generating element when the power is supplied to a heat generating element according to a heating signal and a step of controlling the supply energy to the heat generating element in response to the result of the detection, if the heating signals are present in all of the detecting area, for minimizing the supply energy to the heat generating element in comparison with a case in which the heating signals are not present in all of the detecting area.

Driving method for thermal head and thermal printer utilizing the same

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Yokohama, Japan

Ko Hasegawa