Image reading apparatus facilitating jam clear

摘要

An image reading apparatus includes a reading unit, a conveyance unit, a carriage, a motor, a motor gear, a conveyance gear, a carriage gear, a switching gear, and a control device. The conveyance unit is configured to convey a document from a document tray. The switching gear is configured to be placed in either one of a first position where the motor gear is communicated with the conveyance gear and a second position where the motor gear is communicated with the carriage gear. The control device is configured to: control the motor to rotate the motor gear in a first direction to have the switching gear free from the conveyance gear in response to a determination that the document jam has occurred; and control the motor to rotate the motor gear in a second direction to have the switching gear communicate with the conveyance gear.

主权项

1. An image reading apparatus comprising:
a reading unit; a conveyance unit configured to convey a document from a document tray; a carriage configured to support the reading unit; a motor; a motor gear coupled to the motor; a conveyance gear configured to communicate with the conveyance unit; a carriage gear configured to communicate with the carriage; a switching gear configured to be placed in either one of a first position where the motor gear is communicated with the conveyance gear via the switching gear and a second position where the motor gear is communicated with the carriage gear via the switching gear; a control device configured to:
determine whether a document jam has occurred;control the motor to rotate the motor gear in a first direction to have the switching gear freed from the conveyance gear in response to a determination that the document jam has occurred;determine whether the document jam is cleared;determine whether the document is present on the document tray; andcontrol the motor to rotate the motor gear in a second direction different from the first direction to have the switching gear communicate with the conveyance gear in response to a determination that the document is present on the document tray when determining that the document jam is cleared.