Pfu Limited

Syuichi Morikawa

Kiichiro Shimosaka

A medium conveyance apparatus includes a first sensor located at a center part in a direction perpendicular to a medium conveyance direction; a second sensor located at a downstream side from the first sensor in the medium conveyance direction and at the center part in the direction perpendicular to the medium conveyance direction, a third sensor located at a downstream side from the second sensor in the medium conveyance direction and at the one side in the direction perpendicular to the medium conveyance direction, and a processor to determine whether a tilt angle of the medium being conveyed has changed based on a time from when the first sensor detects the medium to when the second sensor detects the medium when the first sensor detects the medium first, the third sensor detects the medium second, and the second sensor detects the medium third.

Medium conveyance apparatus to determine whether tilt angle of medium has changed based on time from when any sensor detects medium to when another sensor detects medium

Provided is a medium conveying apparatus to enable suitable feeding of a plurality of types of media. A medium conveying apparatus includes a guide member including an opening or a notch and configured to form a conveyance surface of a medium, a feed roller located inside the opening or the notch and configured to feed the medium, a separation roller located to face the feed roller, and protruding parts located on left and right sides of the separation roller relative to a medium conveying direction. The guide member includes recessed parts positioned on left and right sides of the feed roller relative to the medium conveying direction. The protruding parts are located at positions facing the opening or the notch, or the recessed parts in such a way that the medium is conveyed between the protruding parts and the recessed parts. A tip of each of the protruding parts is positioned on the feed roller side of a nip part of the feed roller and the separation roller.

Medium conveyance device

A medium conveying apparatus includes a loading tray to place media, a feed roller to separate and sequentially feed the media placed on the loading tray, a motor to drive the feed roller, a sensor located on a downstream side of the feed roller in a medium conveying direction to detect a medium, and a processor to control the motor. In a separation period from a start of medium feeding by the feed roller to detection of a front edge of the first medium by the sensor, when feeding a first medium of a plurality of media placed on the loading tray, the processor controls the motor to rotate the feed roller at a constant speed, and when feeding a second or subsequent medium, the processor controls the motor to rotate the feed roller at a first speed and then at a second speed higher than the first speed.

Medium conveyance device, control method, and control program

A medium conveying apparatus includes: a housing having an engaged portion and a guide surface; a placement tray having an engaging portion and a placement surface; and a side guide mounted on the placement surface and protruding downstream beyond the placement tray to restrict a medium in a width direction. The engaged portion restricts entry or removal of the engaging portion when the placement surface forms a first angle with the guide surface, and allows entry or removal of the engaging portion when the placement surface forms a second angle different from the first angle with the guide surface in attachment of the placement tray to the housing or detachment of the placement tray from the housing. A downstream end of the side guide in the conveying direction does not intersect with the guide surface as viewed from the width direction when the placement surface forms the second angle.

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Kahoku, Japan

Syuichi Morikawa