Patent ID: 8452197
Filing Date: 2013-05-28
Classification: B65H,G03G

Abstract:
1. An image forming device for forming an image on adverse side and back side of a sheet, comprising: an image forming unit that forms an image on the sheet, the image forming unit having an inlet end and an outlet end, a first conveyer passage extending from the outlet end to discharge the sheet out of the image forming unit; a reverse-running mechanism positioned at the first conveyer passage to invert a feeding direction of the sheet having been conveyed along the first conveyer passage, a second conveyer passage being bifurcated from the first conveyer passage at a bifurcated portion and reaching the inlet end; a changeover flap provided at the bifurcated portion and pivotally movable to a first position closing the first conveyer passage while opening the second conveyer passage and to a second position closing the second conveyer passage while opening the first conveyer passage, the changeover flap having a tip end portion; a frame accommodating therein the image forming unit, the reverse-running mechanism and the changeover flap, the frame having an opening at which at least a part of the second conveyer passage is exposed to an outside; a cover pivotally movable between a closed position closing the opening and an open position opening the opening, the cover defining a part of the second conveyer passage at the closed position; and a flap displacement mechanism comprising a pivot arm pivotally movable in interlocking relation to the pivotal movement of the cover, the pivot arm having a portion provided with a pivot shaft at a position opposite to the cover with respect to the second conveyer passage, and a free end portion provided with a linking portion to which the changeover flap is pivotally movably connected, the pivot arm and the changeover flap being configured to change an angle therebetween in accordance with the pivotal movement of the changeover flap and the pivot arm in interlocking relation to the pivotal movement of the cover from its closed position to its open position to displace the linking portion toward the cover.