| 摘要 |
PROBLEM TO BE SOLVED: To suppress the occurrence of defective printing by immediately detecting the occurrence of skew of a paper sheet between an image forming part and a fixing part of an image forming device. SOLUTION: A side fringe part 312D of an upper plate 312 comes into contact with a lower face of a continuous paper 10 due to energizing force of an energizing member 320. In a condition in which skew does not occur on the continuous paper 10, all the microswitches 340 are maintained in a condition in which their operation piece 342 is at a position where it is pressed down by the continuous paper 10 and all the microswitches 340 are turned on because the continuous paper 10 is conveyed in a condition in which it is in contact with sections in all regions in the longitudinal direction of the side fringe part 312D of the upper plate 312. When skew occurs on the continuous paper 10, the operation piece of the microswitch 340 in a section where the continuous paper 10 floats from the side fringe part 312D oscillates to a protrusion position, and the microswitch 340 is turned off. |
