Back to results
US 7,623,817 B2Granted
Fixing device and image forming apparatus having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsChang-hoon Jung, Hwan-guem Kim, Dong-jin Seol, Dong-woo Lee, Su-ho Shin, Tae-gyu Kim
Life of this patent
Estimating the term…
Abstract
A fixing device includes a pressing roller, a fixing belt to receive a rotation force transferred from the pressing roller and to rotate thereby, a nip forming member which is mounted inside the fixing belt, the nip forming member including a heat transmission unit formed thereon, and a heat source, which is mounted inside the nip forming member, to simultaneously apply heat to the nip forming member and to the fixing belt through the heat transmission unit.
Claims32
A fixing device, comprising:
- a pressing roller;
- a fixing belt to receive a rotation force transferred from the pressing roller and to rotate thereby;
- a nip forming member which is mounted inside the fixing belt and forms a nip, the nip forming member comprising a heat transmission unit formed thereon;
- and
- a heat source, which is mounted inside the nip forming member, to simultaneously apply heat to the nip forming member and to the fixing belt through the heat transmission unit, such that the heat transmission unit simultaneously heats the fixing belt at the nip and other portions thereof.
2 more elements
A fixing device, comprising:
- a pressing roller;
- a fixing belt to receive a rotation force transferred from the pressing roller and to rotate thereby;
- a nip forming member which is mounted inside the fixing belt and forms a nip, the nip forming member comprising a first heat transmission unit formed thereon;
- a supporting pressure member, which is mounted between the fixing belt and the nip forming member, to support and press the nip forming member, the supporting pressure member comprising a second heat transmission unit formed thereon;
- and
- a heat source, which is mounted inside the nip forming member, to simultaneously apply heat to the nip forming member and to the fixing belt through the first and second heat transmission units, such that the heat transmission units simultaneously heat the fixing belt at the nip and other portions thereof.
3 more elements
A fixing device, comprising:
- a pressing roller;
- a fixing belt to receive a rotation force transferred from the pressing roller and to rotate thereby;
- a nip forming member which is mounted inside the fixing belt and forms a nip, the nip forming member comprising a heat transmission unit formed thereon;
- a supporting pressure member to support and press a nip zone of the nip forming member;
- and
- a heat source, which is mounted inside the nip forming member, to simultaneously apply heat to the nip forming member and to the fixing belt through the heat transmission unit, such that the heat transmission unit simultaneously heats the fixing belt at the nip and other portions thereof.
3 more elements
An image forming apparatus comprising:
- a photoconductive drum;
- a developing device to attach a developer onto an electrostatic latent image on the photoconductive medium and to develop the electrostatic latent image;
- a transferring device to transfer an image developed on the photosensitive medium by the developing device to a printing medium;
- and
- a fixing device to fix the image transferred to the printing medium,
- wherein the fixing device comprises:
- a pressing roller;
- a fixing belt to receive a rotation force transferred from the pressing roller and to rotate thereby;
- a nip forming member which is mounted inside the fixing belt forms a nip, the nip forming member comprising a heat transmission unit formed thereon;
- and
- a heat source, which is mounted inside the nip forming member, to simultaneously apply heat to the nip forming member and to the fixing belt through the heat transmission unit, such that the heat transmission unit simultaneously heats the fixing belt at the nip and other portions thereof.
8 more elements
An image forming apparatus comprising:
- a photoconductive drum;
- a developing device to attach a developer onto an electrostatic latent image on the photoconductive medium and to develop the electrostatic latent image;
- a transferring device to transfer an image developed on the photosensitive medium by the developing device to a printing medium;
- and
- a fixing device to fix the image transferred to the printing medium,
- wherein the fixing device comprises:
- a pressing roller;
- a fixing belt to receive a rotation force transferred from the pressing roller and to rotate thereby;
- a nip forming member which is mounted inside the fixing belt and forms a nip, the nip forming member comprising a first heat transmission unit formed thereon;
- a supporting pressure member, which is mounted between the fixing belt and the nip forming member, to support and press the nip forming member, the supporting pressure member comprising a second heat transmission unit formed thereon;
- and
- a heat source, which is mounted inside the nip forming member, to simultaneously apply heat to the nip forming member and to the fixing belt through the first and second heat transmission units, such that the heat transmission units simultaneously heat the fixing belt at the nip and other portions thereof.
9 more elements
A fixing device, comprising:
- a pressing roller;
- a fixing member to receive a rotation force transferred from the pressing roller and to rotate thereby;
- a nip forming member housed inside the fixing belt, the nip forming member comprising a heat transmission unit formed thereon;
- and
- a heat source mounted inside the nip forming member to simultaneously apply heat to the nip forming member and partially emanate heat unobstructively and simultaneously towards the entire fixing belt through the heat transmission unit.
2 more elements
Dependencies are inferred from the claim text.