Medium-transporting device and image reading apparatus

A medium-transporting device that transports a medium, the medium-transporting device comprising:

• a medium-support section that has a first mounting surface which is inclined relative to a horizontal plane and on which the medium is mounted;
• a transport path for transporting the medium mounted on the first mounting surface, the transport path having a curved path on which the medium is transported in a curved state;
• a discharge stacker that has a second mounting surface for receiving the medium discharged along the transport path and that is configured to switch between an extended state in which the second mounting surface is inclined relative to the horizontal plane so as to include a position at which the second mounting surface is inclined at an angle identical to an inclination angle of the first mounting surface and a stored state in which the second mounting surface is stored in the medium-transporting device;
• a medium detector that detects the medium on the second mounting surface;
• and
• a controller that switches the discharge stacker between the extended state and the stored state, wherein
• the controller is configured to perform
• first control of switching the discharge stacker from the extended state to the stored state after the medium discharged along the transport path is discharged to the second mounting surface and
• second control of not switching the discharge stacker from the extended state to the stored state such that the medium discharged along the transport path remains mounted on the second mounting surface,
• wherein when the medium detector detects the presence of the medium on the second mounting surface, the controller performs the second control, and when the medium detecting section detects the absence of the medium on the second mounting surface, the controller performs the first control.

A medium-transporting device that transports a medium, the medium-transporting device comprising:

• a medium-support section that has a first mounting surface which is inclined relative to a horizontal plane and on which the medium is mounted;
• a transport path for transporting the medium mounted on the first mounting surface, the transport path having a curved path on which the medium is transported in a curved state;
• a discharge stacker that has a second mounting surface for receiving the medium discharged along the transport path and that is configured to switch between an extended state in which the second mounting surface is inclined relative to the horizontal plane so as to include a position at which the second mounting surface is inclined at an angle identical to an inclination angle of the first mounting surface and a stored state in which the second mounting surface is stored in the medium-transporting device;
• a medium-mounting-amount detector that detects the number or weight of media discharged to the second mounting surface;
• and
• a controller that switches the discharge stacker between the extended state and the stored state, wherein
• the controller is configured to perform
• first control of switching the discharge stacker from the extended state to the stored state after the medium discharged along the transport path is discharged to the second mounting surface and
• second control of not switching the discharge stacker from the extended state to the stored state such that the medium discharged along the transport path remains mounted on the second mounting surface,
• wherein when the medium-mounting-amount detector detects that an amount of the media mounted on the second mounting surface is not equal to or more than an upper limit value, the controller performs the second control, and when the medium-mounting-amount detector detects that the amount of the media mounted on the second mounting surface is equal to or more than the upper limit value, the controller performs the first control.