Kabushiki Kaisha Toshiba

Nippon Telegraph and Telephone Corporation

Nippon Telegraph and Telephone Public Corporation

Takashi Saito

Toshio Shimizu

Shozo Takeno

This invention relates to a thermal head suitable for constituting a multithermal head used in a color printer, a method of manufacturing the same, and a multithermal head constituted by the thermal heads. The thermal head comprises a flexible insulating film having heating elements arranged in a predetermined pattern and lead wires which have one ends electrically connected to the elements, the film being fixed on a substrate, and heating element driver ICs mounted on the substrate and electrically connected to the wires on the film. The method comprises the steps of, coating the film on the plate, forming the elements in a predetermined pattern and the wires on the film, dividing the plate into portions in accordance with a change in level of a surface of the substrate to which the film is to be fixed, fixing the divided portions of the plate on the substrate, and locating the ICs at a position lower than that of the elements on the substrate and connecting the other ends of the wires to the ICs. In the multithermal head, the thermal heads are fixed on a base so as to make lines of the elements of one thermal head parallel to the lines of that of the other thermal heads.

Thermal head method of manufacturing

This invention relates to a thermal head suitable for constituting a multithermal head used in a color printer, a method of manufacturing the same, and a multithermal head constituted by the thermal heads. The thermal head comprises a flexible insulating film having heating elements arranged in a predetermined pattern and lead wires which have one end electrically connected to the elements, the film being fixed on a substrate, and heating element driver ICs mounted on the substrate and electrically connected to the wires on the film. The method comprises the steps of, coating the film on the plate, forming the elements in a predetermined pattern and the wires on the film, dividing the plate into portions in accordance with a change in level of a surface of the substrate to which the film is to be fixed, fixing the divided portions of the plate on the substrate, and locating the ICs at a position lower than that of the elements on the substrate and connecting the other ends of the wires to the ICs. In the multithermal head, the thermal heads are fixed on a base so as to make lines of the elements of one thermal head parallel to the lines of that of the other thermal heads.

Thermal print head

A thermal ink transfer printing system comprising an ink material selected from the group consisting of thermal meltable inks and thermal sublimatable inks, a container for such ink material, at least a part of one wall of the container being a filter material, a heater for heating the ink adjacent the filter in the selected pattern to be printed and activating the ink in the selective pattern to pass through the filter holes in the pattern and print such pattern on a paper adjacent the filter.

Thermal ink transfer printing system

An input picture signal is converted, for each picture element, into a K-bit, first time-serial signal having 'ls' corresponding in number to the gradation level of the picture element, and the first time-serial signal are written in a random access memory, sequentially updating its column addresses upon every writing of K bits in its column direction. The random access memory is read out, updating its row addresses upon every reading out of M bits in the row direction. A second time-serial signal thus read out from the random access memory is subjected to a serial-parallel conversion by steps of M bits and parallel outputs of the M bits are supplied to recording elements respectively corresponding thereto.

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Yokosuka, Japan

Takashi Saito