| 摘要 |
A sheet transport device according to this invention is provided with: a sheet tray on which a sheet to be transported is placed; a device main body provided with a transport path led from the sheet tray to a discharge outlet; a transport mechanism for transporting the sheet from the sheet tray to the discharge outlet via the transport path; shafts projecting from positions in the vicinity of opposite ends of the discharge outlet of the device main body to horizontal directions opposite to each other; a discharge tray having a main tray which retains the discharged sheet and is provided with bearings for the shafts; and locking members provided in the vicinity of the shafts of the device main body. The locking members lock the shafts of the discharge tray in the bending posture. This locking prevents the discharge tray in the bending posture from coming off the device main body. The locking members allow the bearings of the discharge tray in the bending posture to move toward the front ends of the shafts. The bearings come off the shafts when a load larger than a predetermined one is applied on the main tray.
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