Patent ID: 11930143
Assignee: SEIKO EPSON CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The image reading apparatus according to claim 2, wherein
the control section
performs control in the low output mode by using the low power-feeding USB device as a power supply source in a coupling state where the low power-feeding USB device is coupled without the AC adapter coupled, and
continues the control in the low output mode by continuously using the low power-feeding USB device as the power supply source when a coupling state is changed from the coupling state where the low power-feeding USB device is coupled without the AC adapter coupled, to a coupling state where the AC adapter and the low power-feeding USB device are coupled during image reading at the first reading speed in the low output mode, and performs control in the high output mode by using the AC adapter as the power supply source, after image reading at the first reading speed is ended.