Samsung Electronics Co., Ltd.

S-printing Solution Co., Ltd.

Hwan-hee Kim

Su-ho Shin

Tae-gyu Kim

Dong-Woo Lee

Chang-hoon Jung

Tae-hoon Kim

Dong-jin Seol

Hwan-guem Kim

Jae-hyuk Lim

Sang-cheol Moon

Choong-kyu Park

Kwang-sun Song

Jeong-chul Song

An image forming apparatus as provided includes: a heating roller heated using a first heater unit disposed in the center thereof and second heater units disposed on both sides of the first heater unit; a pressure roller in pressing contact with the heating roller to form a nip; first and second sensors for detecting the temperature of a central area of the heating roller the temperature of a side area of the heating roller, respectively; and a controller for individually controlling the first and second heater units according to the respective temperatures measured by the first and second sensors when the temperature measured by the second sensor is lower than a predetermined first temperature, and commonly controlling the first and second heater units according to the temperature measured by the first sensor when the temperature measured by the second sensor is equal to or higher than the predetermined first temperature.

Image forming apparatus and fuser driving control method

A fusing unit and an image forming apparatus, the fusing unit includes: a fusing frame which is grounded to the image forming apparatus when mounted in the image forming apparatus; a heating member which includes a release layer contacting the print medium and a heat transfer layer provided within the release layer, grounded to the fusing frame, and transfers heat from a heat source provided therein to a print medium passing a predetermined fusing nip; a supporting member which rotatably supports the heating member; a pressure roller, forms the fusing nip between the pressure roller and the heating member, presses the print medium passing the fusing nip and includes a conductive material; and a discharging member includes an end part which contacts the print medium passing the fusing nip, and discharges static electricity from the print medium.

Fusing unit and image forming apparatus employing the same

A fusing device includes a rotatable pressing roller, a fusing belt to rotate by a rotational force transmitted from the rotatable pressing roller, a nip forming member to contact an inner surface of the fusing belt to form a nip on a contact area between the rotatable pressing roller and the fusing belt, a heating member formed in approximately an internal central portion of the fusing belt to heat the nip forming member and the fusing belt, an inner support member formed within the fusing belt to press a nip part of the nip forming member toward the rotatable pressing roller, and an outer support member formed outside the fusing belt, and both ends of the outer support member being engaged with the inner support member to thereby reinforce the strength of the inner support member and form a path for radiation heat to disperse. The support unit includes an inner support member placed within the belt unit, and an outer support member placed outside the belt unit, both ends of the outer support member being engaged with the inner support member to reinforce the strength of the inner support member and to form a path for a radiation heat to disperse.

Fusing device and image forming apparatus having the same

A fusing apparatus includes a heating unit to generate heat to fuse an image onto a printing medium, a pressurizing roller that faces and contacts the heating unit having an endless fusing film that is rotated while facing and contacting the pressurizing roller and presses the printing medium toward the heating unit, a nip forming member including a main body formed inside the fusing film to surround a heat source and contacts a portion of the fusing film to the pressurizing roller to form a nip. The fusing apparatus further includes a supporting member to support the nip forming member.

Fusing apparatus and electrophotographic image-forming apparatus having the same

A fusing device includes a pressure unit, a belt unit to rotate in outer contact with the pressure unit, a nip forming unit to form a nip over a contact portion between the pressure unit and the belt unit, a heating unit to heat the nip forming unit and the belt unit, and a support unit to press and support the nip forming unit constantly and having a plurality of heat transmission portions defined in a parallelogrammic shape of an oblique direction with respect to a traveling direction of the belt unit.

Growing community of inventors

Suwon-si, South Korea

Hwan-hee Kim