Alps Electric Co., Ltd.

Fuji Photo Film Company, Limited

Shuichi Aratsu

Koichi Sugiyama

Hiroyuki Sato

Kunio Hakkaku

Yukio Sawano

Kyuichi Fujisawa

Souhei Shibasaki

Tatsuo Sugawara

Hitoshi Yauchi

Hiroto Nagashima

A printing device for printing on a supplied paper, said printing device being provided therein with ink ejecting elements for ejecting ink from ink flow paths having nozzles on its front end and formed in ink jet head, and with a controlling means for electrically controlling said ink ejecting elements, said printing device being characterized in that said controlling means is constructed such that electric controlling conditions with respect to said ink ejecting elements are varied according to types of ink used. By such a construction, it becomes possible to drive ejecting elements in an excellent driving conditions adapted to type of ink used, thereby to deliver ink onto paper in a stable manner for carrying out a good quality of printing.

Printing device and printing method

An image processing method of coloring an image with colors of well harmonized or matched group. Plural color groups, each including plural grouped colors and giving an individually different mental effect or impression, are stored in a memory, and a specified color group is selected from the stored plural color groups to color the image with colors included in the thus selected color group. Also provided is a system for the practice of the method described above. The system comprises image display means for displaying a colored image, memory means for storing plural color groups, each including plural grouped colors and giving an individually different mental effect or impression, area input means for defining one or more areas to be colored with desired colors, color input means for selecting a specified color group from the plural color groups and designating particular colors included in the thus selected color group, and coloring processor means for coloring the areas with the particular colors designated through the color input means.

Image processing method and system for coloring an image with groups of

A device for activating the pen of a printer comprises a push member and for pushing the pen toward the platen of the printer, a connecting lever secured to the push member, a driving lever for imparting a driving motion to the push member via the connecting lever. The driving lever is provided with a grooved cam in which the tip of the connecting lever is inserted so as to be slidable along the cam.

Device for driving print member of printer

A pen recorder comprising a pen which is adapted to be placed in contact with a recording paper, a return spring which is capable of energizing a pen so that it is separated from the recording paper and a push-out means which pushes the pen so that it can be placed in contact with the recording paper. This push-out means includes a push-lever urging the pen towards the recording paper against a spring force larger than that of the return spring. During the printing operation, this push-lever is separated from the roller, while during the waiting condition, it engages the roller. Accordingly, stabilized pen feed rate and contact pressure of pen can be realized during printing operation.

Pen recorder

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Tokyo, Japan

Shuichi Aratsu