Shinko Electric Company, Ltd.

Ricoh Company, Ltd.

Takanobu Mimura

Satoshi Arai

Hideo Sakurai

Fumio Takahashi

Nobuyoshi Sugiyama

Takashi Ohkuma

Satoshi Iwata

Akikazu Toida

Shigeyuki Kawamura

Takayuki Toba

Toshiki Nakamura

A disclosed information recording apparatus includes an erasing unit configured to erase prerecorded information on recording media capable of being colored and decolored by heat; a recording unit configured to record information on the recording media from which the prerecorded information is erased; and a control unit configured, when a recording request is received, to cause the recording unit to start recording information on a first one of the recording media and to cause the erasing unit to start erasing prerecorded information on a second one of the recording media.

Information recording apparatus and information recording method

A control device for thermal printing head and a printer having the thermal printing head are presented. The control device had a plurality of heating elements to correspond to a plurality of imprinting dots and a plurality of 1-bit registers for holding bit signals to drive each heating element, and includes dividing means for dividing gradation data of a multi-level gradation to express tones of imprinted dots into a plurality of weighted values according to gradation values; and pulse signal generation means for generating pulses having predetermined pulse widths according to respective weighting of gradation values and generating a number of pulses or pulse widths in accordance with a plurality of values of divided gradation data.

Control device for thermal printer head and printer using the same

A method of thermally printing a multicolor image on a print paper is disclosed. With this method, a lengthy multicolor image can be printed on a paper over a plurality of pages of a length determined by a length of each ink zone of an ink ribbon. First, the ink ribbon is set over a platen roller with the paper being interposed therebetween, the ink ribbon having plural groups of ink zones, the ink zones of each group carrying a plurality of heat-dissolving inks of different colors, respectively. One of the ink zones is positioned at a printing position where a thermal head contacts with the platen roller through the ink ribbon and paper. The thermal head is then activated in accordance with image data stored in a memory, and the ink ribbon and paper are advanced to effect transfer of ink so that one of color component images of the image is printed on the paper. The ink ribbon and paper are then advanced by a predetermined distance to separate the paper from the ink ribbon. The paper is then backwardly moved by a distance equal in length to the total advance of the paper effected in the transferring of ink and the separation of paper. The above operation is cyclicly carried out with respect to the other ink zones to form the multicolor image on the paper without effecting the backward movement in the final cycle. If image data is still present in the memory or if a command for causing the print operation of the image to continue is received, the paper is backwardly moved by a distance substantially equal in length to the advance of paper in the final separation of the paper.

Method of performing thermal multicolor printing

Growing community of inventors

Mie, Japan

Takanobu Mimura