Media ejecting apparatus, control method, and non-transitory computer-executable medium

1 . A media ejecting apparatus, comprising:

an imaging device to image a medium to generate an input image;

an ejection roller located downstream from the imaging device in a media ejection direction to eject the medium imaged by the imaging device;

a sensor located between the imaging device and the ejection roller to detect a part of a trailing end of the medium; and

circuitry configured to:

detect an amount of inclination of the medium;

determine whether an entire trailing end of the medium has passed an imaging position of the imaging device based on the amount of inclination when a part of the trailing end of the medium passes the sensor and generate a determination result; and

control the ejection roller based on the determination result.

2 . The media ejecting apparatus of claim 1 , wherein the circuitry is configured to control the ejection roller to change a rotation speed of the ejection roller in response to the determination result indicating that the entire trailing end of the medium has passed the imaging position when a part of the trailing end of the medium passes the sensor.

3 . The media ejecting apparatus of claim 1 , wherein the circuitry is configured to control the ejection roller not to change a rotation speed of the ejection roller in response to the determination result indicating that the entire trailing end of the medium has not passed the imaging position when a part of the trailing end of the medium passes the sensor.

4 . The media ejecting apparatus of claim 1 , wherein the circuitry is configured to perform image processing on an image based on the input image while controlling the ejection roller to change a rotation speed of the ejection roller in response to the determination result indicating that the entire trailing end of the medium has not passed the imaging position when a part of the trailing end of the medium passes the sensor.

5 . The media ejecting apparatus of claim 1 , wherein

the circuitry is configured to:

control the ejection roller to reduce a rotation speed of the ejection roller in response to the determination result indicating that the entire trailing end of the medium has passed the imaging position when a part of the trailing end of the medium passes the sensor; and

control the ejection roller not to change the rotation speed of the ejection roller in response to the determination result indicating that the entire trailing end of the medium has not passed the imaging position when a part of the trailing end of the medium passes the sensor.

6 . The media ejecting apparatus of claim 1 , wherein

the circuitry is configured to:

control the ejection roller to reduce a rotation speed of the ejection roller in response to the determination result indicating that the entire trailing end of the medium has passed the imaging position when a part of the trailing end of the medium passes the sensor; and

perform thinning processing on an image based on the input image while controlling the ejection roller to reduce the rotation speed of the ejection roller in response to the determination result indicating that the entire trailing end of the medium has not passed the imaging position when a part of the trailing end of the medium passes the sensor.

7 . The media ejecting apparatus of claim 1 , wherein,

a plurality of ejection rollers are located at intervals in a direction orthogonal to the media ejection direction,

the circuitry is further configured to:

determine whether skew of the medium has occurred; and

in a case where the circuitry determines that the skew of the medium has occurred,

control an ejection roller of said plurality of ejection rollers to perform a skew correction on the medium in response to the determination result indicating that the entire trailing end of the medium has passed the imaging position when a part of the trailing end of the medium passes the sensor; and

control the ejection roller of said plurality of ejection rollers not to perform the skew correction on the medium in response to the determination result indicating that the entire trailing end of the medium has not passed the imaging position when a part of the trailing end of the medium passes the sensor.

8 . The media ejecting apparatus of claim 1 , wherein the imaging device includes a first imaging sensor for imaging a first side of the medium at a first position and a second imaging sensor for imaging a second side of the medium at a second position downstream from the first position in the media ejection direction, and

the circuitry is configured to:

determine whether the entire trailing end of the medium has passed the second position as the imaging position; and

detect the amount of inclination based on the image imaged by the first imaging sensor.

9 . The media ejecting apparatus of claim 1 , further comprising a plurality of another sensors located upstream from the imaging device in the media ejection direction at intervals in a direction orthogonal to the media ejection direction to detect the trailing end of the medium,

wherein the circuitry is configured to detect the amount of inclination based on output signals from the plurality of another sensors.

10 . A method of controlling a media ejecting apparatus, the method comprising:

imaging a medium by an imaging device to generate an input image;

ejecting the medium imaged by the imaging device by an ejection roller located downstream from the imaging device in a media ejection direction;

detecting a part of a trailing end of the medium by a sensor located between the imaging device and the ejection roller;

detecting an amount of inclination of the medium;

determining whether an entire trailing end of the medium has passed an imaging position of the imaging device based on the amount of inclination when a part of the trailing end of the medium passes the sensor and generating a determination result; and

controlling the ejection roller based on the determination result.

11 . A non-transitory computer-executable medium storing a plurality of instructions which, when executed by one or more processors, causes the one or more processors to perform a method, the method comprising:

detecting an amount of inclination of a medium;

determining whether an entire trailing end of the medium has passed an imaging position of an imaging device based on the amount of inclination when a part of the trailing end of the medium passes a sensor located between the imaging device and the ejection roller and generating a determination result; and

controlling an ejection roller based on the determination result.