Patent ID: 9116496
Filing Date: 2015-08-25
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a print engine portion configured to perform printing, the print engine portion including: a plurality of paper sheet detectors provided in the conveying portion; and a control portion configured to control the print engine portion, to detect occurrence of a jam on the basis of outputs of the paper sheet detectors, and to cause the print engine portion to perform a jam stop to stop conveyance of the paper sheets, when detecting occurrence of the jam, wherein the control portion determines a fixing nip position which is a position of the fixing nip portion on a fixing stop paper sheet that is a paper sheet nipped at the fixing nip portion during the jam stop, on the basis of the outputs of the paper sheet detectors, if the fixing nip position is located at a leading end half of the fixing stop paper sheet in a paper sheet conveying direction, the control portion controls the fixing portion to rotate in a reverse direction to convey the fixing stop paper sheet to an upstream side in the paper sheet conveying direction such that the fixing stop paper sheet is separated from the fixing nip portion, and if the fixing nip position is located at a rear end half of the fixing stop paper sheet in the paper sheet conveying direction, the control portion controls the fixing portion to rotate in a forward direction to convey the fixing stop paper sheet toward a downstream side in the paper sheet conveying direction such that the fixing stop paper sheet is separated from the fixing nip portion.