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Image forming apparatus

An image and image carrier technology, which is applied to the electrical recording process using the charge pattern, equipment for the electrical recording process using the charge pattern, and electrography, etc., can solve the problems of transfer current leakage and other problems, and achieve the goal of suppressing image failures Effect

Active Publication Date: 2016-03-23
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the case of paper containing water in a high-humidity environment, the transfer current may leak through the paper to the paper conveying section around the photosensitive drum

Method used

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Embodiment Construction

[0015] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in the figure, the same code|symbol is attached|subjected to the same or corresponding part, and description is not repeated.

[0016] figure 1 It is a configuration diagram of an example of the image forming apparatus according to the embodiment.

[0017] For example, the image forming apparatus 100 is a multifunction peripheral (MFP: MultiFunctionPeripheral). The image forming apparatus 100 has functions of a scanner, a copier, a printer, and a facsimile (FAX). The image forming apparatus 100 includes an image forming unit 1 , an image reading unit 2 , a document conveyance device 3 , and an operation panel 4 . The image forming unit 1 forms an image on paper P as an example of a recording medium. The image reading unit 2 reads an image of a document. The document conveyance device 3 conveys a document to be read. Operation panel 4 is a device for all...

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PUM

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Abstract

The present invention provides an image forming apparatus. The image forming apparatus includes an image bearing member, a transfer section, a transfer bias applying section, a conveyance section, an element, a current measurement section, and a control section. The transfer section forms, in conjunction with the image bearing member, a pressing part where a recording medium is pressed. The transfer section transfers the toner image from the image bearing member to the recording medium as the recording medium passes through the pressing part. The transfer bias applying section supplies transfer current to the transfer section to apply a transfer bias to the transfer section. The conveyance section conveys the recording medium in a conveyance direction toward the pressing part. The element conducts when a voltage equal to or greater than a prescribed value is applied thereto. The current measurement section measures a value of leak current which is a current flowing through the element. The control section controls a value of the transfer current. The control section changes the absolute value of the transfer current based on the absolute value of the leak current.

Description

technical field [0001] The present invention relates to an image forming apparatus. Background technique [0002] An electrophotographic image forming apparatus is known. In general, an electrophotographic image forming apparatus performs various steps such as charging, exposure, development, and transfer to form an image on paper. [0003] Specifically, first, in the charging step, the outer peripheral surface of the photosensitive drum (hereinafter referred to as "image bearing surface") as an image bearing body is uniformly charged to a predetermined potential of the first polarity (for example, positive electrode). Next, in the exposure step, the image bearing surface is exposed to form an electrostatic latent image on the image bearing surface. Then, in the developing step, the electrostatic latent image on the image bearing surface is developed using the charged toner. Thus, a toner image is formed on the image bearing surface. In addition, in the case where the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/16G03G15/00
CPCG03G15/1675G03G2215/00776G03G15/161G03G15/5037
Inventor 大仓朋久
Owner KYOCERA DOCUMENT SOLUTIONS INC