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Image forming apparatus

An image and image diagnosis technology, which is applied in the direction of electric recording process applying charge pattern, equipment and instrument of electric recording process applying charge pattern, etc., can solve problems such as reduced productivity.

Active Publication Date: 2019-11-29
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the technology of Patent Document 1, since the continuous paper is always rewound when a printing failure occurs, and the maintenance operation of the print head is performed during this period, it is impossible to perform appropriate measures corresponding to the cause of the printing failure. deal with issues such as reduced productivity

Method used

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Embodiment Construction

[0050] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, in the description of the drawings, the same reference numerals are attached to the same elements, and overlapping descriptions are omitted. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation and are different from actual ratios.

[0051] figure 1 It is a schematic diagram showing the configuration of the image forming apparatus according to the embodiment.

[0052] The image forming apparatus 10 according to the present embodiment uses paper P as an image recording medium, and forms an image on the paper P.

[0053] The transport direction of the paper P when the image forming apparatus 10 forms an image (also referred to as printing or printing) ( figure 1Arrow F) in ) connects the paper feeding unit 100 , the image forming unit 300 , the image diagnosis unit 500 , and the paper discharge unit 700...

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Abstract

Provided is an image forming apparatus capable of suppressing a decrease in productivity even in the case where a defect occurs in a formed image during image formation on continuous paper. The imageforming apparatus (10) includes: an image former (300) that forms an image on the continuous paper; a conveyer (310) that conveys the continuous paper in a forward direction that is a conveyance direction at a time of image formation to the image former (300); an image diagnosis part (500) that detects abnormality of the image formed by the image former (300) and performs diagnosis of a degree ofthe detected abnormality; and a controller (370) that switches whether to continue conveyance of the continuous paper in the forward direction according to a result of the diagnosis of the image performed by the image diagnosis part (500).

Description

technical field [0001] The present invention relates to an image forming apparatus. Background technique [0002] In recent years, in an image forming apparatus, after an image is formed, the formed image is read by a line image sensor, and an abnormality of the image is checked. In the case of single-sheet paper, paper with an abnormal image can be excluded as "waste" or "waste paper" during printing. [0003] However, some image forming apparatuses perform continuous printing on continuous paper such as roll paper. In the case of continuous paper, even if an abnormal image is detected during printing, unlike cut-sheet paper, it is not possible to exclude only the part that becomes a waste product. Therefore, there is a possibility that waste products are mixed in output products. Therefore, there is a problem that man-hours are required to manually find and remove waste parts after all printing on the continuous paper is completed. [0004] To address such a problem, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/00
CPCG03G15/5062G03G15/6508G03G15/55
Inventor 山本雄介新井浩之
Owner KONICA MINOLTA INC