Paper conveying device and image forming device

Abstract

The present invention provides a paper conveying device and an image forming apparatus capable of specifying the content of a paper conveying abnormality that occurs in a paper conveying path that conveys paper. The paper conveyance device includes a paper conveyance path, a conveyance sound detection unit, an abnormality corresponding information storage unit, and an abnormality specifying unit. The paper conveying path is for conveying paper. The conveyance sound detector detects a conveyance sound of paper in the paper conveyance path. The abnormality-corresponding information storage unit stores abnormality-corresponding information indicating contents of various types of paper conveyance abnormalities occurring in the paper conveyance path and the conveying Correspondence of the content of the transmission sound detected by the sound detection unit. The abnormality specifying section specifies the paper conveyance abnormality occurring in the paper conveyance path based on the abnormality correspondence information stored in the abnormality correspondence information storage section and the conveyance sound detected by the conveyance sound detector. Content.

Description

technical field [0001] The present invention relates to a paper conveying device and an image forming device. Background technique [0002] In image forming apparatuses such as printers, facsimile machines, copiers, and digital multifunction peripherals, a paper conveying device for conveying paper is installed. The paper conveying device conveys paper by, for example, rotating a plurality of conveying roller pairs that sandwich the paper. Specifically, in an image forming apparatus, a paper conveyance device is used to convey paper stacked on a paper feed cassette, manual feed tray, or the like to an image forming unit. [0003] Paper jams are generally referred to as paper jams that occur during paper conveyance, such as paper jams in the paper conveyance path for conveying paper. In addition, conventionally known paper jam detection methods (hereinafter referred to as "conventional methods") are, for example, installing a paper detection sensor on the paper conveyance p...

AI Technical Summary

Problems solved by technology

However, in the conventional method of detecting paper jams based on the timing of paper passing, the type of paper jams cannot be identified.

Therefore, when a paper jam occurred in the past, regardless of the content of the paper jam, only the same processing as stopping the conveyance was performed.

In addition, in the above-mentioned conventional method, since it takes a certain amount of time from the generation of the jam to the detection of the jam, deformation such as a paper jam in which the paper becomes corrugated may be severe.

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