Samsung Electronics Co., Ltd.

Myung-bo Son

Yong-duk Lee

Dong-hun Han

Hyoung-il Kim

Kyung-pyo Kang

Dac-hycok Im

A recording medium discharge apparatus includes a discharge pusher for discharging a recording medium; and a discharge tray in which the recording medium discharged through the discharge pusher is stacked. The discharge pusher is configured to be capable of conducting electric current, thereby eliminating the static electricity from the recording medium discharged to the discharge tray. For the electric conduction of the discharge pusher, the discharge pusher includes a conductive material. Alternately, an elastic member is made of a conductive material in such a way that a part of the elastic member is extended to a surface of the discharge pusher which comes into contact with the recording medium.

Recording medium discharge apparatus and image forming apparatus having the same

An image forming apparatus is provided and includes a platen roller and a thermal printing head. The thermal printing head is elastically biased toward the platen roller and rotates about a pivot of the platen roller for moving between first and second positions to faces first and second surfaces of a medium. A transfer portion has driving and driven rollers which are rotatably engageable with each other to transfer the media. A guiding unit reduces a difference of media transfer force of the transfer portion when the thermal printing head is respectively located in the first and second positions.

Image forming apparatus performing double-sided printing

A thermal printer and a printing method are provided. The thermal printer includes a thermal printhead for applying a predetermined amount of heat to a thermal recording paper to develop a print layer provided on the thermal recording paper; a feeding roller for feeding the thermal recording paper, a platen roller for facing the thermal printhead to support the thermal recording paper, wherein the thermal recording paper passes between the thermal printhead and the platen roller, a first encoder sensor for detecting a rotation of the platen roller, a second encoder sensor for detecting rotation of the feeding roller; a counting unit for counting first and second pulse signals generated from the first and second encoder sensors, respectively, and a switching unit of the first and second pulse signals as a variable to control the feeding of the thermal recording paper.

Thermal printer and printing method

A thermal image forming apparatus includes a platen roller which supports a medium, a print head, including a heating unit which applies heat to the medium to form an image thereon, which rotates around the platen roller and moves the heating unit to a first location facing a first surface of the medium and a second location facing a second surface of the medium, and a restricting element which rotates together with the print head. The restricting element restricts the movement of the platen roller in a transport direction of the medium so that the heating unit is placed at a printing nip formed by the platen roller and the print head when the print head is located at the first and second locations.

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Anyang-si, South Korea

Myung-bo Son