Patent ID: 11943405
Assignee: SEIKO EPSON CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 0:
1. An image reading apparatus comprising:
a document mounting section configured to mount a document;
a feed roller configured to feed the document from the document mounting section;
a transport roller disposed downstream of the feed roller and configured to transport the document downstream;
a transport motor being a drive source of the transport roller;
a reader disposed downstream of the transport roller and configured to read the document; and
a controller configured to control the reading unit and the transport motor,
wherein the controller is configured to obtain information on a document type and an inclination detection reference value for an inclination of image data set in accordance with the document type and obtained from the reader, and when the inclination of the image data exceeds the inclination detection reference value in accordance with the document type, the controller stops the transport motor,
wherein the controller is configured to obtain a load detection reference value for a load torque of the transport motor set in accordance with the document type in addition to the inclination detection reference value, and
wherein when an inclination of the image data exceeds the inclination detection reference value in accordance with the document type or when the load torque exceeds the load detection reference value in accordance with the document type, the controller stops the transport motor,
wherein the controller is configured to perform the obtaining of load detection reference value and the obtaining of the inclination detection reference value in parallel after starting the document feed operation, and
wherein the load detection reference value and the inclination detection reference value for feeding the thin paper are set to values larger than the load detection reference value and the inclination detection reference value for feeding plain paper or thick paper, respectively.