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US 10,389,900 B2Granted
Image reading apparatus
AssigneeSeiko Epson Corporation
InventorsKazuhiko Arimori, Hidetoshi Masuda
Life of this patent
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Abstract
An image reading apparatus is provided with a reader which reads a document, a transport roller which is provided on an upstream side of the reader in a document transport path in which the document is transported and transports the document to a reading position of the reader, and a controller which receives reading data of the reader and controls the transport roller, in which the controller receives the reading data from the reader to acquire a form of the document, and selects whether or not to stop driving of the transport roller based on the form.
Claims13
An image reading apparatus comprising:
- a first reader which is disposed on a first surface side of a document in a document transport path in which the document is transported and reads the first surface of the document;
- a second reader which is disposed on a second surface side of an opposite side from the first surface side and reads the second surface of the document, the second reader being positioned on a downstream side of the first reader in the document transport path;
- a transport roller which is provided on an upstream side of the first reader in the document transport path and transports the document to a reading position of the first reader and a reading position of the second reader;
- and
- a controller which controls the first reader, the second reader, and the transport roller,
- wherein the controller detects first edges of the document based on a first reading data of the first reader and second edges of the document based on a second reading data of the second reader, the controller acquires a first width between the first edges and a second width between the second edges, and in a case in which a difference between the first width and the second width is greater than or equal to a predetermined value, the controller performs a stopping process which stops driving of the transport roller.
3 more elements
An image reading apparatus comprising:
- a first reader which is disposed on a first surface side of a document in a document transport path in which the document is transported in a document transport direction and reads the first surface of the document;
- a second reader which is disposed on a second surface side of an opposite side from the first surface side and reads the second surface of the document, the second reader being positioned on a downstream side of the first reader in the document transport path;
- a transport roller which is provided on an upstream side of the first reader in the document transport path and transports the document to a reading position of the first reader and a reading position of the second reader;
- and
- a controller which controls the first reader, the second reader, and the transport roller,
- wherein the controller detects first edges of the document based on a first reading data of the first reader and second edges of the document based on a second reading data of the second reader, and the controller acquires, based on the first edges, a distance X1 between an end portion of one side of the document and an end portion of one side of the first reader in an intersection direction which intersects the document transport direction,
- wherein the controller acquires, based on the second edges, a distance X2 between the end portion of one side of the document and an end portion of one side of the second reader in the intersection direction when the transport roller transports the document by a transport amount corresponding to a disposition interval with which the first reader and the second reader are disposed, and
- wherein in a case in which a difference between the distance X1 and the distance X2 exceeds a predetermined threshold, the controller stops driving of the transport roller.
5 more elements
An image reading apparatus comprising:
- a first reader which is disposed on a first surface side of a document in a document transport path in which the document is transported in a document transport direction and reads the first surface of the document;
- a second reader which is disposed on a second surface side of an opposite side from the first surface side and reads the second surface of the document, the second reader being positioned on a downstream side of the first reader in the document transport path;
- a transport roller which is provided on an upstream side of the first reader in the document transport path and transports the document to a reading position of the first reader and a reading position of the second reader;
- and
- a controller which controls the first reader, the second reader, and the transport roller,
- wherein the controller detects first edges of the document based on a first reading data of the first reader and second edges of the document based on a second reading data of the second reader, and the controller acquires, based on the first edges, a distance Z1 between an end portion of one side of the document and an end portion of the other side of the document in an intersection direction which intersects the document transport direction,
- wherein the controller acquires, based on the second edges, a distance Z2 between the end portion of one side of the document and the end portion of the other side of the document in the intersection direction when the transport roller transports the document by a transport amount corresponding to a disposition interval with which the first reader and the second reader are disposed, and
- wherein in a case in which a difference between the distance Z1 and the distance Z2 exceeds a predetermined threshold, the controller stops driving of the transport roller.
5 more elements
Dependencies are inferred from the claim text.