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Paper transportation device

A conveying device and paper technology, applied in the directions of transportation and packaging, instruments, electrical recording process applying charge patterns, etc., can solve problems such as the oblique state of the original document, not the position of the sensor, etc., and achieve the effect of preventing the oblique reading of the image.

Inactive Publication Date: 2009-09-30
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the optimal sensor position for detecting the oblique state of the fixed paper with the smallest width size is not the optimal sensor position for detecting the oblique state of the fixed paper with a larger size in the width direction. , but can only detect the oblique state of the paper at the position where the accuracy is reduced
Therefore, there is a problem that if the skewed state of the original is not detected in accordance with the size of the original on the paper conveyance path, the skewed state of the original cannot be prevented.
In addition, the above-mentioned problem also occurs, for example, when a sheet is drawn out one by one from among a plurality of sheets stored in the paper feed cassette.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0037] The paper conveying device of the first embodiment is an automatic document conveying device. Since the automatic document feeder is installed and used in the image forming apparatus, the automatic document feeder installed in the image forming apparatus will be described. In addition, the image forming apparatus of the first embodiment is suitable, for example, as a printer or a scanner alone, or a digital multi-functional peripheral including a printer, a copier, a scanner, a facsimile machine, etc., as a copy service, a scanning service, a facsimile service, and a printing service. and other image forming apparatuses. Figure 1A , Figure 1B , Figure 1C It is a schematic diagram which shows the automatic document feeder of 1st Embodiment, and its mounting base.

[0038] Figure 1A A side view of the automatic document feeder 100 is shown. The automatic document feeder 100 includes a stage 101 a provided outside the platen cover 101 , restricting plates 102 for re...

no. 2 approach

[0084]8 to 11 , the procedure for accurately detecting the skewed state of the paper by the automatic document feeder 100 and the multifunction peripheral 200 according to the second embodiment will be described. Compared with the first embodiment, the second embodiment is different in that the size in the width direction of the paper is acquired, and the two diagonal line detection sensors are moved so as to correspond to the acquired size in the width direction of the paper. Since other points are the same as those of the first embodiment, the second embodiment will also be described with reference to the drawings ( FIGS. 1 to 7 ) used in the first embodiment as appropriate.

[0085] First, in the second embodiment, the sensor movement control unit included in the automatic document feeder 100 will be described in detail.

[0086] like Figure 8A As shown, a restriction plate 801 that restricts the side surface of the original P is provided on the stage 101a. Here, there i...

Embodiment approach

[0107] (a) The correction unit in the first embodiment and the second embodiment is configured to use a correction roller to remove the skewed state of the document, but other methods may be used to remove it. For example, the paper conveyance path is configured to apply a bend to a normally conveyed sheet at a predetermined position, but a bend applying unit may be provided at the position where the bend is applied to additionally apply a bend to the original to eliminate the skewed state. In addition, as another method, an image data oblique line unit may be provided to obliquely line the read image data to eliminate the oblique line state of the original document.

[0108](b) In the first embodiment and the second embodiment, the correction roller is located on the upper surface of the extension part of the restricting plate or the auxiliary member, and is located in a position parallel to the oblique line detection sensor along the F direction. The position where the skewe...

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Abstract

The invention provides a paper transportation device (100) provided with an obliquely transported condition detection unit (404). The obliquely transported condition detection unit (404) is configured to detect an obliquely transported condition of a sheet of paper based on a detection result of the travel-directional front end of the sheet of paper by obliquely transported condition detection sensors (113a and 113b). The obliquely transported condition detection sensors (113a and 113b) are arranged in predetermined positions on a document transportation path. The sensor movement controller (402) is configured to move the obliquely transported condition detection sensors (113a and 113b) in accordance with the width size of the sheet of paper.

Description

technical field [0001] The present invention relates to a paper conveying device, and more particularly, to a paper conveying device capable of accurately detecting a skewed state of conveyed paper. Background technique [0002] In recent years, image forming apparatuses gradually have various functions. For example, a device may be provided which has various functions such as a facsimile sending function, a scanning function, a printing function, a bookbinding function, a punching function in addition to a copying function. In addition, with the diversification of functions, there has also been proposed a device in which an automatic document feeder (ADF) capable of automatically sequentially conveying documents is installed. [0003] Here, in order to properly perform the above-mentioned functions, the original or the object of the image formation is made [0004] It is important that the sheet is transported on the sheet transport path without being inclined. For examp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H7/10B65H1/00B65H3/00B65H5/00B65H9/16B65H9/04G03G15/00H04N1/00
CPCB65H2511/12B65H2553/81B65H2511/242B65H2511/514B65H2701/1322B65H2701/1311B65H2513/53B65H9/002B65H2511/20B65H7/08B65H2513/104B65H2513/10B65H2513/52B65H2511/24B65H2220/01B65H2220/03B65H2220/02B65H2220/11
Inventor 矶界阳志田端义明
Owner KYOCERA DOCUMENT SOLUTIONS INC
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