| 摘要 |
An image reading apparatus includes a sensor and a control unit. The sensor includes including a photoelectric conversion unit configured to generate a charge, a first transfer unit configured to transfer the generated charge from the to an output unit, and the output unit transfers the charge to an outside of the sensor, and a second transfer unit configured to transfer the charge from the first transfer unit to a drain unit to drain the charge. The control unit configured to execute control for transferring the charge to the drain unit after transferring the charge outside the sensor, based on a size of document to be read.
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