Image forming apparatus
An image and image holding technology, which is applied in the field of image forming devices, can solve problems such as the influence of image formation and the slipping of recording materials
Inactive Publication Date: 2013-04-10
KONICA MINOLTA BUSINESS TECH INC
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Problems solved by technology
[0014] If the tension of the intermediate transfer belt becomes small, there is a problem that when the cleaning member is arranged at a position not facing the roller supporting the intermediate transfer belt, the recording material is likely to slip from the cleaning member due to the slack of the intermediate transfer belt. The over phenomenon will affect the subsequent image formation
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[0042] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. figure 1 It is a cross-sectional view showing the overall configuration of the image forming apparatus in the first embodiment of the present invention. figure 1 The illustrated image forming apparatus 20 is an image forming apparatus of the so-called tandem type capable of forming full-color images.
[0043] The image forming apparatus 20 is composed of a scanner unit 22 , a printer unit 24 , a paper feeding unit 32 , an operation display unit 23 , and the like.
[0044] The scanner unit 22 is composed of an automatic document feeder 21, an optical system 22a, a CCD image sensor 22b, and the like.
[0045] The printing unit 24 is composed of image forming units 40Y, 40M, 40C, and 40K that form toner images corresponding to the respective colors of yellow, magenta, cyan, and black; Intermediate transfer belt 31 for intermediate transfer of images, secondary tra...
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An image forming apparatus includes: image carriers, an intermediate transfer body, primary transfer members, support members, a secondary transfer unit, a cleaning member, an adjustment mechanism, and a control unit. The support members rotatably support the intermediate transfer body. The cleaning member abuts against the intermediate transfer body at a position other than a position opposite to the support member under a predetermined condition based on a reference tension of the intermediate transfer body. The adjustment mechanism can adjust an abutment condition between the cleaning member and the intermediate transfer body. The control unit controls the adjustment mechanism to adjust the abutment condition to be suitable for removing, by the cleaning member, recording materials remaining on the intermediate transfer body without being transferred onto the transfer material when a tension of the intermediate transfer body is changed from the reference tension.
Description
technical field [0001] The present invention relates to an image forming apparatus comprising primary transfer of an image onto an intermediate transfer body in a plurality of primary transfer sections, and secondary transfer of the image on the intermediate transfer body in a secondary transfer section. When the transfer material is transferred, the cleaning portion of the recording material remaining on the intermediate transfer body without being secondarily transferred to the transfer material is removed. Background technique [0002] It is known that in a plurality of primary transfer sections, a desired image is primary transferred to an intermediate transfer body in such a manner that color-separated toner images of different colors are superimposed, and the superimposed toner images that are primary transferred are An image forming apparatus capable of forming a full-color toner image on the transfer material by secondary transfer to the transfer material. [0003] ...
Claims
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IPC IPC(8): G03G15/16G03G15/00
CPCG03G15/161
Inventor 山木秀郎西田聪
Owner KONICA MINOLTA BUSINESS TECH INC