| 摘要 |
According to an embodiment, there is provided a sheet processing apparatus including a contactless type detection magnetic sensor for detecting magnetism of a sheet, correction magnetic sensors for detecting a magnetic field near the detection magnetic sensor, coils arranged near the detection magnetic sensor, and a cancel device for generating a cancellation magnetic field for cancelling a magnetic field near the detection magnetic sensor from the coils based on a detection result of the correction magnetic sensors. |
