JP2008162745A5 - - Google Patents

Claims (8)

A guideway to guide the seat,
Conveying means for conveying the sheet along the guide path;
A discharge path that branches off from the guide path and guides the sheet out of the apparatus ;
Switching means provided at a branch point between the guide path and the discharge path, and selectively switching a sheet between the guide path and the discharge path;
The switching means obtains a sheet that can be conveyed in a guide path upstream in the sheet conveyance direction of the switching means when the non-conveyance information that cannot convey the sheet downstream in the sheet conveyance direction of the switching means is obtained. To switch to
A sheet conveying apparatus. A sheet detecting unit that detects whether or not a sheet overlaps the switching unit when the conveyance impossibility information is obtained;
When the sheet detecting unit detects the sheet, conveyed from the conveyance in the sheet conveyance direction downstream of the branch point of the sheet in which the conveying means is detected along said guide path, said switching means in said guide path Switch to guide possible sheets to the discharge path,
The sheet conveying apparatus according to claim 1. The transport failure information is obtained from the abnormality detecting means for detecting whether or not there is an abnormality in the conveyed sheet guide path of the sheet conveyance direction downstream of the branching point,
The sheet conveying apparatus according to claim 1, wherein the sheet conveying apparatus is a sheet conveying apparatus. The conveying means includes a plurality of rotating body pairs that convey the sheet while nipping and rotating the sheet,
When the sheet detecting unit detects a sheet , at least one of the rotating body pairs downstream of the branch point in the sheet conveying direction conveys the sheet , and the remaining rotating body pairs are separated from each other .
The sheet conveying apparatus according to claim 2 . Image forming means for forming an image on a sheet;
Equipped with a sheet conveying device according to any one of claims 1 to 4 for conveying the sheet through said image forming means,
An image forming apparatus. A sheet processing apparatus that processes an image-formed sheet formed by the image forming unit and conveyed by the sheet conveying apparatus;
The conveyance disabled information is information that cannot convey a sheet in the sheet processing apparatus.
The image forming apparatus according to claim 5. The image forming unit includes a photosensitive drum and a transfer unit,
Conveying means downstream of the branch point in the sheet conveying direction includes the photosensitive drum and the transfer unit, a roller for correcting skew of the sheet conveyed between the photosensitive drum and the transfer unit, and the photosensitive member A fixing device that fixes the toner image on a sheet on which a toner image is formed by a drum and the transfer unit;
The image forming apparatus according to claim 5, wherein the image forming apparatus is an image forming apparatus. The guide path is configured to guide a sheet fed from a cassette containing the sheet through the image forming unit, and a discharge transport path to guide and discharge the sheet on which the image is formed by the image forming unit. And a double-sided conveyance path that reverses the sheet on which the image is formed by the image forming unit and guides the sheet to the image forming unit again.
The image forming apparatus according to claim 5, wherein the image forming apparatus is an image forming apparatus.