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Portray forming apparatus and method thereof

A technology for image and paper feeding devices, applied to electrical recording technology using charge graphics, equipment, transportation and packaging of electrical recording technology using charge graphics, and can solve problems such as the adverse effects of photosensitive drum life

Inactive Publication Date: 2004-10-06
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In this case, after the image formation of a specific page is started by the image forming device, the paper on which the image of the page is transferred is picked up from the selective paper feeder, and when there is no paper in the selective paper feeder, since the next The image formation of the page forms a toner image on the intermediate transfer belt without the paper on which the image should be formed, so it needs to be cleaned, etc., and it also has a negative impact on the life of the photosensitive drum.

Method used

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  • Portray forming apparatus and method thereof
  • Portray forming apparatus and method thereof
  • Portray forming apparatus and method thereof

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no. 1 approach

[0021] First, a first embodiment of the present invention will be described.

[0022] figure 1 It is a cross-sectional view of the overall structure of the image forming device using the intermediate transfer method and the detachable selective paper feeding device installed on the image forming device.

[0023] figure 1 Among them, 1 is an image forming apparatus, and the selective paper feeding devices 21 and 22 can be attached and detached. The image forming apparatus 1 has: as the image forming section 2, image forming sections 2Y, 2M, 2C, and 2Bk that form toner images on a photosensitive drum 11 of an image carrier; The loaded toner image is superimposed on the intermediate transfer belt 3 for primary transfer; for the toner image that is superimposed on the intermediate transfer belt 3 and has undergone primary transfer, it is placed on the paper S at the secondary transfer position N2 The secondary transfer roller 4 that performs secondary transfer; the fuser 14 tha...

no. 2 approach

[0061] Next, a second embodiment of the present invention will be described.

[0062] Figure 5 It is a cross-sectional view of the overall configuration of a full-color image forming device using an intermediate transfer method and a detachable selective paper feeder mounted on the image forming device.

[0063] Figure 5 Contains such as figure 1 The components of the image forming apparatus shown and the detachable selective paper feeder attached to the image forming apparatus are different in figure 1 On the basis of the composition of the image forming device, detachable selective paper feeding devices 23 and 24 are added.

[0064] Furthermore, as described in the first embodiment, in terms of configuration, the distance from the primary transfer nip portion N1 to the secondary transfer nip portion N2 is smaller than the paper feed from the selective paper feeder 21 . The transport distance of the paper S from the position P1 to the secondary transfer nip, and the tra...

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Abstract

An image formation apparatus comprises a transporting roller pair and resist roller pair for transporting sheets supplied from a sheet supplying device positioned relative to the image formation apparatus at a sheet supplying interval, and an image processing controller for receiving, from the sheet supplying device, information relating to the sheet supplying interval. In the event of the image formation apparatus transporting sheets supplied from the sheet supplying device, the transporting roller pair and resist roller pair transport the sheets at the sheet supplying interval, based on the information regarding the sheet supplying interval received by the image processing controller.

Description

technical field [0001] The present invention relates to an image forming apparatus and an image forming method. Background technique [0002] In an image forming apparatus that forms an image on paper, in order to supply a large amount of paper to the image forming apparatus, a plurality of detachable selective paper feeding devices mounted on the image forming apparatus are generally prepared. Also, each of the multiple selective paper feeders that are detachable on a specific image forming apparatus, the conveying speed at which paper is fed to the image forming apparatus, and the distance from the loading position of the paper to the paper delivery position of the image forming apparatus are sometimes In this case, the time required for the paper to reach the paper delivery position of the image forming device also varies after the image forming device sends an instruction to the selective paper feeder to pick up paper to supply the image forming device. [0003] Therefo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G21/14B65H3/00B65H3/06G03G15/00G03G15/01G03G21/00
CPCG03G15/6564G03G2215/00746
Inventor 中村彰浩
Owner CANON KK