Image reading apparatus and control method of image reading apparatus for controlling output modes and image reading speed

An image reading apparatus comprising:

• a reading section configured to read an image from an original document;
• and
• a control section configured to perform control related to image reading, wherein
• the control section is configured to perform control in any one of a plurality of types of modes,
• the plurality of types of modes include a low output mode and a high output mode,
• the low output mode is a mode configured to be controlled in a coupling state where a low power-feeding USB device configured to feed power of a power value included within a low power range is coupled,
• the high output mode is a mode configured to be controlled in a coupling state where a high power-feeding USB device configured to feed power of a power value included within a high power range higher than the low power range is coupled,
• the reading section is configured to read an image at either a first reading speed or a second reading speed faster than the first reading speed,
• the control section is configured not to perform image reading at the second reading speed and to perform image reading at the first reading speed in the low output mode, and
• the control section is configured to perform image reading at the first reading speed and the second reading speed in the high output mode, wherein the plurality of types of modes include a medium output mode, the medium output mode is controlled in a coupling state where the battery configured to feed power of a power value included within a medium power range is coupled, the medium power range being higher than the low power range and lower than the high power range,
• wherein the reading section reads an image at a third reading speed that is faster than the first reading speed and slower than the second reading speed, and
• wherein the control section is configured not to perform image reading at the second reading speed, and to perform image reading at the first reading speed and the third reading speed in the medium output mode.