Matsushita Electric Industrial Co., Ltd.

Masaaki Takita

Yoshikazu Tsuru

Toshiharu Kitagawa

Yoshikazu Nomura

Atsushi Kakimoto

Masaharu Ushihara

Taichi Itoh

Ryuji Nishiyama

Shinichi Watanabe

Masumi Tanaka

Two-stage skew adjustment is achieved by first using only the drive force of the platen roller with the pinch roller and the capstan roller drive disrupted by a gap opening mechanism to effect a large skew adjustment. Then, the gap is closed and the platen roller, which has a Teflon-resin coating thereon and a larger diameter than the capstan roller or pinch roller, effects a small skew adjustment. Thereafter, printing is effected by feeding the paper in a reverse direction to register with an inked ribbon feed of a primary ribbon using the platen roller drive and the pinch roller drive with the skew cycle repeated for each ribbon color segment to achieve improved multicolor printing registration.

Printer with two-stage skew adjustment

The present invention relates to a printer, and more particularly to a heat transfer printer. The printer comprises: a pair of upper and lower chutes for guiding printed paper; an idle roller provided on the upper chute; a paper discharging motor bracket provided on the lower chute; a paper discharging lever rotatably provided on the paper discharging motor bracket; and a paper discharging pulley disposed at a tip of the paper discharging lever, wherein, at the time of discharging the paper, the paper discharging lever is rotated by a driving force of a motor provided on the bracket to cause the paper discharging pulley to project from the lower chute so as to come into contact with the idle roller, while, at the time of printing, the motor is stopped.

Printer

The present invention relates to a printer which is capable of eliminating the slack of paper, wherein, at the time of printing, the paper is fed by a pinch roller, while, at the time of paper feeding, the paper is caused to slide relatively at least on a platen roller.

The present invention relates to a ribbon feed mechanism for use in a heat transfer printer. The ribbon feed mechanism includes first, second, and third ribbon feed components fitted on a shaft, a friction plate mounted between the first and second ribbon feed components, a spring mounted between the second and third ribbon feed components, a cylinder which is in contact with the third ribbon feed component at one end thereof, and a ribbon feed presser for pressing the other end of the cylinder toward the third ribbon feed component. The rotational torque is always kept constant, and therefore no unmatching of colors occurs when the mechanism is applied to a printer.

Ribbon feed mechanism

Recording paper clamping apparatus

Paper feeding apparatus

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Ibaraki, Japan

Masaaki Takita