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Image forming apparatus

An image and equipment technology, applied in the field of image forming equipment, to achieve the effect of reducing the burden

Inactive Publication Date: 2012-05-09
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the image forming apparatus discussed in Japanese Patent Application Laid-Open No. 2006-91330, a solution to the occurrence of a paper jam in one of the first and second conveyance paths has not been found, so there is room for improvement

Method used

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Embodiment Construction

[0019] Various exemplary embodiments, features, and aspects of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] refer to figure 1 , the image forming apparatus 100 of the first exemplary embodiment of the present invention will be described. Hereinafter, components having a structure similar to those of the foregoing components and performing operations similar to those of the foregoing components are denoted by the same reference numerals as the case requires.

[0021] figure 1 The illustrated image forming apparatus includes first to fourth image forming units Pa to Pd serving as image forming means arranged in parallel, and forms toners of different colors through latent image forming, developing, and transferring processes image.

[0022] The image forming units Pa to Pd respectively include photosensitive drums 3 a to 3 d serving as dedicated image bearing members, and form negatively charged toner images of ...

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Abstract

When jam occurs in one of a tandem conveyance path and bypass conveyance path, a sheet is automatically discharged from the conveyance path where no jam has occurred. A sheet retained at the upstream side with respect to a first fixing device in a sheet conveying direction is automatically discharged to the outside of an image forming apparatus by using the conveyance path where no jam has occurred. After the automatic discharging of the sheet is completed, a user is prompted to remove the jammed sheet.

Description

technical field [0001] The present invention relates to an image forming apparatus using electrophotography, and more particularly to an image forming apparatus such as a copier, a printer, or a facsimile. Background technique [0002] The image forming apparatus discussed in Japanese Patent Laid-Open No. 2006-91330 includes two fixing devices installed along the conveying direction of a sheet. The image forming apparatus includes a first conveyance path prepared as a sheet conveyance path for conveying a sheet through the two fixing devices and a sheet conveyance path for conveying the sheet through only one of the two fixing devices, respectively. Second delivery path. [0003] In this image forming apparatus, when a paper jam occurs (abnormal conveyance), the paper jam imposed on the user is alleviated by automatically discharging the sheets that remain in the apparatus (not in a jammed state) to the outside of the image forming apparatus Burden of jam handling. More s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20G03G15/01
CPCG03G2215/00413G03G15/6573G03G2215/2006G03G2215/00552G03G15/2064
Inventor 北川应树
Owner CANON KK