Patent ID: 9459581
Filing Date: 2016-10-04
CPC Classification: G03G

Claim Text:
1. An image forming apparatus comprising: a plurality of paper feeding cassettes that are loaded in a detachable manner in the inside of an apparatus main body; a carrying passage through which paper sheets are fed from the plurality of paper feeding cassettes; a sensing sensor that is disposed in the carrying passage, and senses conveyance of a paper sheet fed through the carrying passage; a paper non-feeding jam determining part that, on the basis of the result of sensing by the sensing sensor, when the apparatus is in printing, performs processing to determine whether or not a paper non-feeding jam has occurred in a paper feeding cassette of the plurality, and in the event that there has occurred a paper non-feeding jam, performs processing to release the error state for the paper non-feeding jam after a prescribed period of time has elapsed, and performs processing to give a notification that paper feeding is to be changed over; and a system control part that, on the basis of the notification from the paper non-feeding jam determining part, performs processing to control changeover of paper feeding to paper feeding from another paper feeding cassette.