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Fixation unit and fixation apparatus of image forming apparatus using the same

A technology for locking devices and images, applied in the fields of fixing units, fixing devices, and image forming devices, which can solve problems such as limited screw thread height, crushing, and heating tube restrictions

Inactive Publication Date: 2007-01-17
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of strong torque of the heating tube, in the screw joint solution, the thread of the screw will be crushed and the cap cannot be tightened
Furthermore, due to the limited height of the screw threads, there are limitations in obtaining heating tubes with smaller thicknesses

Method used

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  • Fixation unit and fixation apparatus of image forming apparatus using the same
  • Fixation unit and fixation apparatus of image forming apparatus using the same
  • Fixation unit and fixation apparatus of image forming apparatus using the same

Examples

Experimental program
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Embodiment Construction

[0027] refer to image 3 and 4 , the fixing device 200 is a device for fixing the toner image 251 to the printing medium 250 by applying heat and pressure to the toner image 251, which includes applying The fixing unit 210 of heat and the pressure roller 220 facing the fixing unit 210 rotate in the arrow B direction. The printing medium 250 passes between the fixing unit 210 and the roller 220 , thereby pressing the toner image 251 toward the fixing unit 210 .

[0028] The fixing unit 210 includes a tubular fixing roller 212 having a release layer 211 formed to coat Teflon TM or similar surfaces. An open-ended tubular inner tube 214 is inserted into the inside of the fixing roller 212 . The heating unit 213 is disposed between the fixing roller 212 and the inner tube 214 and surrounds the circumferential surface of the inner tube 214 in a spiral shape, thereby generating heat with electric current supplied from an external power source (not shown). The electrical insulati...

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PUM

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Abstract

A fusing unit and a fusing apparatus using the fusing unit and an image forming apparatus having the fusing apparatus are provided. The fusing unit includes a pipe-shaped fusing roller provided with a pipe-shaped internal pipe surrounded by a heating unit generating heat, a plurality of end caps disposed at both ends of the fusing roller, and a locking assembly for fastening the end caps to respective ends of the fusing roller, wherein the locking assembly has a first locking member fastened on an inner side surface of the fusing roller and a second locking member fastening one end of the fusing roller.

Description

technical field [0001] The present invention relates to a fixing unit, a fixing device using the fixing unit, and an image forming apparatus having the fixing device, and more particularly, the present invention relates to a fixing unit having a fastening assembly for End caps are fastened to both ends of the fixing unit. The present invention also relates to a fixing device using the fixing unit and an image forming device having the fixing device. Background technique [0002] Generally, a color image forming device using electrophotography refers to forming an electrostatic latent image by irradiating light on a photosensitive medium charged with a predetermined potential, developing the electrostatic latent image with a predetermined color toner, and transferring the developed image and a device for fixing to a printing medium to form a color image. [0003] Therefore, the image forming apparatus includes a fixing device for applying heat and pressure to the toner imag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/20G03G15/00
CPCG03G15/2053G03G15/00H05B3/0095G03G15/2017G03G2215/20
Inventor 李贞和金欢谦
Owner SAMSUNG ELECTRONICS CO LTD