JP2022144288A5 - - Google Patents

Claims (9)

a mounting table having a medium mounting surface;
a pick roller that feeds the medium;
a separation unit that is disposed downstream of the pick roller in the medium conveyance direction and separates the medium stacked above so as to be conveyed;
a distance measuring unit disposed above the medium conveyance path upstream of the pick roller in the conveyance direction;
a control unit that executes abnormality processing according to the distance measured by the distance measurement unit,
The distance measuring unit measures the distance to the medium toward a predetermined measurement area.
A medium conveying device characterized by: The media transport device according to claim 1 , wherein the predetermined measurement region is a region downstream of a roller nip of the pick roller. The medium transport device according to claim 2, wherein the predetermined measurement area is an area from downstream of a roller nip of the pick roller to upstream of the separating section. The control unit executes the abnormality processing when the distance measured by the distance measurement unit is less than or equal to a threshold;
The medium transport device according to any one of claims 1 to 3 , wherein the threshold value changes small with the passage of time after the feeding of the medium is started. The distance measuring unit is arranged in a direction at a first angle with respect to the conveyance direction with respect to a center position of a roller nip of the pick roller on the placement surface as a reference,
The medium transport device according to any one of claims 1 to 4 , wherein the first angle is 59 degrees or more and 86 degrees or less. The distance measuring unit is arranged in a direction at a second angle with respect to a direction perpendicular to the conveyance direction with respect to a center position of a roller nip of the pick roller on the placement surface,
The medium transport device according to any one of claims 1 to 5 , wherein the second angle is 17 degrees or more and 70 degrees or less. 7. The medium transport device according to claim 1 , wherein the distance measuring section is arranged at a height of 54 mm or more and 120 mm or less from the placement surface. A mounting table having a medium mounting surface, a pick roller that feeds the medium, and a separating section that is disposed downstream of the pick roller in the transport direction of the medium and separates the medium stacked above so as to be transported. and a distance measuring unit disposed above the medium conveyance path upstream of the pick roller in the conveyance direction, the method comprising:
Executing abnormality processing according to the distance measured by the distance measuring unit,
The distance measuring unit measures the distance to the medium toward a predetermined measurement area.
A control method characterized by: A mounting table having a medium mounting surface, a pick roller that feeds the medium, and a separating section that is disposed downstream of the pick roller in the transport direction of the medium and separates the medium stacked above so as to be transported. and a distance measuring unit disposed above the medium conveyance path upstream of the pick roller in the conveyance direction, the control program for a medium conveyance device comprising:
causing the medium transport device to execute abnormality processing according to the distance measured by the distance measuring unit;
The distance measuring unit measures the distance to the medium toward a predetermined measurement area.
A control program characterized by: