Image reading apparatus

An image reading apparatus comprising:

• a reading unit that reads a document;
• a document transport unit that transports the document toward the reading unit;
• a binding member detector that detects a binding member binding the document by detecting a change in a magnetic field when the document passes through the magnetic field;
• a document detector that detects passage of the document when the document passes through the binding member detector;
• and
• a controller that receives information on the document detected by the document detector and information on the change in the magnetic field detected by the binding member detector,
• wherein the controller is configured to monitor the information on the change in the magnetic field when a magnetic field generator included in the binding member detector is operating and when the magnetic field generator is not operating,
• wherein the magnetic field generator does not operate when the passage of the document is not detected,
• wherein if the binding member detector detects the change in the magnetic field without detecting the passage of the document, the controller executes a predetermined process.