| 摘要 |
What is provided is an image forming apparatus that shortens the time period for interruption of printing. Image forming apparatus includes paper feeding cassettes (300), a paper sheet detection sensor (105), a sensing sensor (109a~109c), a paper feeding changeover determining part, and a system control part. The paper feeding cassettes (300) are detachably loaded inside of an apparatus main body (101). Paper sheet detection sensor (105) detects a paper sheet stored in the paper feeding cassette (300). Sensing sensor (109a, 109b, 109c) senses paper sheet conveyed along the carrying passage from the paper feeding cassette (300). Paper feeding changeover determining part determines whether or not changeover of paper feeding is possible, on the basis of operation state of the apparatus, a change in result of detection by paper sheet detection sensor (105), and the result of sensing by sensing sensor (109a~109c). System control part controls changeover of paper feeding on the basis of result of determination by paper feeding changeover determining part. |
