| 摘要 |
Disclosed is an image forming apparatus that includes an image forming section, a conveyance section, a position detecting section, an abnormality detecting section and a control section. When determining as the first determination that it is possible to eject each of the paper sheets and/or the image-formed paper sheets outside and determining as the second determination that it is necessary to re-output the new image-formed paper sheet, the control section incompletely ejects each of the retention paper sheets, remaining within the image forming apparatus, outside from the ejection opening. By controlling the apparatus as above-mentioned, even in a case where it is impossible to eject the concerned paper sheet onto a separate tray, it becomes possible to prevent the retention paper sheet from remaining at an apparatus-inner position, from which it is difficult for the user to remove the retention paper sheet concerned. |
| 主权项 |
1. An image forming apparatus comprising:
an image forming section that forms an image onto a paper sheet; a conveyance section that conveys the paper sheet corresponding to an image forming operation, and ejects an image-formed paper sheet outside through an ejection opening; a position detecting section that detects a position of the paper sheet or the image-formed paper sheet, which is conveyed on a conveyance path of the conveyance section; an abnormality detecting section that detects an image abnormality in the image formed on the image-formed paper sheet or a conveyance abnormality in a conveying operation by the conveyance section; and a control section that controls the image forming operation and the conveying operation, based on results detected by the position detecting section and the abnormality detecting section; wherein the control section is configured to determine as a first determination whether or not it is possible for the conveyance section to eject each of retention paper sheets currently remaining within the image forming apparatus according to contents of the image abnormality and/or the conveyance abnormality and the position with respect to each of the retention paper sheets when the abnormality detecting section detects the image abnormality and/or the conveyance abnormality, to determine as a second determination whether or not it is necessary to form the image onto a new paper sheet so as to re-output a new image-formed paper sheet according to the contents of the image abnormality and/or the conveyance abnormality and the position with respect to each of the retention paper sheets when the abnormality detecting section detects the image abnormality and/or the conveyance abnormality, and to control the image forming operation and the conveying operation based on results of the first determination and the second determination, and wherein the control section conducts controlling operations for: deactivating an operation for conveying each of the retention paper sheets remaining within the image forming apparatus, when determining as the first determination that it is impossible to eject any one of the paper sheets and/or the image-formed paper sheets outside; ejecting each of the retention paper sheets, remaining within the image forming apparatus, outside through the ejection opening, when determining as the first determination that it is possible to eject each of the paper sheets and/or the image-formed paper sheets outside and determining as the second determination that it is unnecessary to re-output the new image-formed paper sheet; and incompletely ejecting each of the retention paper sheets, remaining within the image forming apparatus, outside from the ejection opening, when determining as the first determination that it is possible to eject each of the paper sheets and/or the image-formed paper sheets outside and determining as the second determination that it is necessary to re-output the new image-formed paper sheet. |
