| 摘要 |
PROBLEM TO BE SOLVED: To provide an image formation device, configured to perform drive and transmission between an opening-closing door and a device body, in which the drive-transmission part is reduced to a compact size, and the possibility of causing the skipping of teeth during processing is lowered.SOLUTION: The opening-closing door of the image formation device is provided with: a first conveyance roller for conveying a recording medium in a paper conveyance path; a drive source; a drive pulley 40 that rotates together with the first conveyance roller; a first transmission gear 42 on a separate shaft from the drive puller; a transmission belt 43 for transmitting rotation between these; and a movement member 51 capable of moving in a direction the shaft-to-shaft distance of these increases or decreases and holding the first transmission gear. Possessed on the device body side are a second transmission gear 44 that engages with the first transmission gear when the opening-closing door is in a closed state and is disengaged when the door is an open state, and a second conveyance roller for conveying a recording medium at a separate position from the first conveyance roller and driven by the second transmission gear. Also provided are a pin part 54 and a concave-shaped part 55 for positioning the movement member in the closed state.SELECTED DRAWING: Figure 13 |
