Matsushita Electric Industrial Co., Ltd.

Tetsuhiro Sano

Noboru Katakabe

Masahide Tsukamoto

Atsushi Sogami

Shigeto Ueno

Yutaka Nishimura

Noriyuki Tajima

Yoshitaka Yoshikawa

Hitoshi Ono

Orio Yoshii

Disclosed is an information processing device such as a compact personal computer, word-processor, and the like containing a printer therein. The information processing device is provided, in a side surface of its outer casing, with an opening portion so as to permit projection of an end portion of an ink cartridge or carriage. Therefore, although the device is compact-sized, it is possible to enlarge the printable width of the device. This makes it possible to effect printing on a larger-sized sheet of paper.

Reciprocating printing cartridge extending beyond casing sidewall opening

A resistive ribbon thermal transfer printing apparatus produces two kinds of electric pulses for selectively energizing recording electrodes of a printing head according to a data to be printed. A first electric pulse (normal pulse) is applied to a recording electrode which is to be energized and is disposed between two recording electrodes which are to be energized. A second electric pulse (specific pulse) is smaller in energy than the normal pulse and is applied to a recording electrode which is to be energized and is not disposed between two recording electrodes which are to be energized. This selective application of the two kinds of pulses allows the size of the printed dots to become uniform.

Resistive ribbon thermal transfer printing apparatus

A print head with elongate electrical conductors and a fixing member containing hexagonal boron nitride, the elongate electrical conductors being embedded in or laminated on the fixing member and exposed at the tips. Electric signals are applied between the conductors and a printing medium to print thereon images corresponding to the electric signals.

Print head

Growing community of inventors

Hirakata, Japan

Tetsuhiro Sano