Image carrier unit and image forming device with image carrier unit
A technology of image carrier and main body, which is applied in the direction of electrical recording technology using charge graphics, equipment and instruments using electrical recording technology using charge graphics, and can solve image unevenness, conduction resistance fluctuations, and uneven residual charges on the surface of photosensitive drums. Equalization problem, to achieve the effect of suppressing image unevenness and stabilizing conductivity
A technology of image carrier and main body, which is applied in the direction of electrical recording technology using charge graphics, equipment and instruments using electrical recording technology using charge graphics, and can solve image unevenness, conduction resistance fluctuations, and uneven residual charges on the surface of photosensitive drums. Equalization problem, to achieve the effect of suppressing image unevenness and stabilizing conductivity
CN107615181BActive Publication Date: 2021-03-05KYOCERA DOCUMENT SOLUTIONS INC
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[0022] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 It is a cross-sectional view showing a schematic configuration of an image forming apparatus 100 according to an embodiment of the present invention, and a tandem color printer is shown here. The four image forming sections Pa, Pb, Pc, and Pd are viewed from the upstream side in the conveyance direction ( figure 1 middle left) are sequentially arranged in the main body of the image forming apparatus 100 . The above-mentioned image forming parts Pa to Pd are provided correspondingly to images of different four colors (cyan, magenta, yellow and black), and sequentially form images of cyan, magenta, yellow and black through the processes of charging, exposure, development and transfer, respectively. image.
[0023] Photosensitive drums 1 a to 1 d carrying visible images (toner images) of respective colors are arranged in the image forming sections Pa to Pd. Moreo...
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The image carrier unit (40a-40d) provided by the present invention is provided with an image carrier (1a-1d) and a unit casing (41). The image carriers (1a-1d) comprise: an image carrier body (50) with a photosensitive layer formed on the outer peripheral surface; a through hole (51a) is fixed on both ends of the image carrier body (50) and formed in the rotation center of the image carrier body (50). ) of the flange part (51); the cylindrical sintered oil-impregnated bearing (55) fixed in the through hole (51a) of the flange part (51); the sintered oil-impregnated bearing (55) and the image carrier body (50) ) an electrically conductive conducting member (57); a support shaft (53) slidably passing through the sintered oil-impregnated bearing (55) and fixed to the unit housing (41); and a contact spring (60) having a support shaft (53) ) inserted coil spring portion (60a) is sandwiched in a compressed state between the axial end face of the sintered oil-impregnated bearing (55) and the unit housing (41), so that the sintered oil-impregnated bearing (55) and the support shaft (53) ) is electrically connected.
Description
technical field [0001] The present invention relates to image forming apparatuses such as copiers, printers, and facsimiles, and more particularly, to an image carrier unit carrying an electrostatic latent image and an image forming apparatus including the image carrier unit. Background technique [0002] In a conventional image forming apparatus employing electrophotography, an electrostatic latent image is formed on a uniformly charged photosensitive drum (image carrier), the electrostatic latent image is developed into a toner image and an image is formed on paper (recording medium) . [0003] Sintered bearings are provided at both ends of the photosensitive drum, and when the photosensitive drum is assembled on the unit frame, the sintered bearings are in contact with the electrode chips provided on the unit frame. The electrode chip is formed of a sintered body, and is connected to the main body of the image forming apparatus via a ground wire or the like. In this way...
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Patent Timeline
05 Mar 2021
Publication
CN107615181B
- IPC
- G03G21/16; G03G15/00
- CPC
- G03G15/751; G03G21/1652
- Inventors
- 森下浩树; 花野劝