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Belt cleaning apparatus and image forming apparatus

一种清洁装置、清洁刮板的技术，应用在应用电荷图形的电记录工艺、应用电荷图形的电记录工艺的设备、仪器等方向，能够解决除去残留调色剂、残留调色剂除去效率降低、不能得到中间转印带的外周面清洁性能等问题，达到提高除去效率、均匀清洁性能的效果

Inactive Publication Date: 2011-03-30
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the belt cleaning device disclosed in Japanese Patent Application Laid-Open No. 8-171286, residual toner cannot be removed from the slit of the cleaning blade, so it cannot be said that the removal efficiency of residual toner is sufficient.
[0009] Moreover, since the elastic layer on the outer peripheral surface of the intermediate transfer belt is a layer that is easily elastically deformed, the abutting portion of the cleaning blade, especially the end of the slit is excessively sunk inward in the thickness direction from the outer peripheral surface of the intermediate transfer belt, not only Uniform cleaning performance on the outer peripheral surface of the intermediate transfer belt cannot be obtained, and an inversion phenomenon in which the cleaning blade is rolled up corresponding to the rotation of the intermediate transfer belt occurs, resulting in a reduction in the removal efficiency of residual toner

Method used

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  • Belt cleaning apparatus and image forming apparatus
  • Belt cleaning apparatus and image forming apparatus
  • Belt cleaning apparatus and image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] The intermediate transfer belt and the cleaning blade are constituted as follows.

[0093] [Intermediate transfer belt]

[0094] The intermediate transfer belt was formed such that an elastic layer made of urethane rubber with a width of 337 mm and a thickness of 150 μm was formed at the center in the width direction of the surface of a substrate made of polyimide with a width of 357 mm. In addition, the intermediate transfer belt was rotated and conveyed at a rotational peripheral speed of 220 mm / sec, and the meandering width was in the range of 0.5 to 3 mm.

[0095] [Cleaning scraper]

[0096] As a cleaning blade, a width of 340 mm in the long side direction, a width of 9.0 mm in the short side direction, a thickness of 2.0 mm, and a Young's modulus of 8.53 MPa (870 gf / mm 2 ) scraper made of polyurethane rubber. In addition, one end in the short-side direction of the cleaning blade is arranged so as to be in contact with a region of the outer peripheral surface of ...

Embodiment 2

[0098] [Intermediate transfer belt]

[0099] The structure was the same as that of the intermediate transfer belt of Example 1 except that the thickness of the elastic layer was 250 μm.

[0100] [Cleaning scraper]

[0101] It was comprised similarly to the cleaning blade of Example 1 except that the width in the longitudinal direction was 341 mm.

Embodiment 3

[0103] [Intermediate transfer belt]

[0104] The structure was the same as that of the intermediate transfer belt of Example 1 except that the thickness of the elastic layer was 400 μm.

[0105] [Cleaning scraper]

[0106] It was comprised similarly to the cleaning blade of Example 1 except that the width in the longitudinal direction was 342 mm.

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PUM

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Abstract

The invention provides a belt cleaning apparatus and an image forming apparatus. The belt cleaning apparatus includes a cleaning blade and a waste toner case. The cleaning blade is a plate-like elastic member that extends in parallel with a width direction of an intermediate transfer belt and is provided so that one end of a lateral direction thereof abuts on an outer peripheral surface of the intermediate transfer belt. The waste toner case supports the other end in the lateral direction of the cleaning blade. The cleaning blade is formed such that a width W1 of the one end in the lateral direction thereof is longer than a width W2 of an elastic layer in the width direction of the intermediate transfer belt.

Description

technical field [0001] The present invention relates to a belt cleaning device and an image forming device. Background technique [0002] In an electrophotographic image forming apparatus, a method is adopted in which a toner image is obtained by developing an electrostatic latent image on an electrostatic latent image holder using toner, and the toner image is transferred to a recording medium, thereby A toner image is formed on the recording medium. As the transfer method in the image forming apparatus, the following transfer method is used: transfer the toner image formed on the electrostatic latent image holder, and pass the intermediate transfer belt that conveys the toner image through the recording medium and the carrier. The opposing transfer section moves the toner image by electrostatic force, thereby transferring the toner image onto the recording medium. Furthermore, a belt cleaning device is provided in order to remove residual toner remaining on the outer per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G21/00G03G15/16G03G15/00
CPCG03G15/161
Inventor 田中知省
Owner SHARP KK
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