Image reading apparatus

An image reading apparatus comprising:

• a sheet support surface through which light is transmitted and on which a sheet is supported;
• a reading unit configured to perform a reading operation of reading an image of the sheet supported on the sheet support surface while moving in a sub-scanning direction, the reading unit comprising:
• a light source configured to irradiate the sheet supported on the sheet support surface with the light through the sheet support surface;
• an imaging unit configured to receive the light irradiated from the light source and reflected by the sheet, and convert the light into an image signal;
• and
• a housing configured to support the light source and the imaging unit;
• a main body portion configured to accommodate the reading unit;
• and
• a flat cable of which one end is connected to the reading unit, and which transmits the image signal to the reading unit, the flat cable being curved while the reading unit moves in the sub-scanning direction,
• wherein the main body portion comprises:
• a sliding contact surface extending in the sub-scanning direction and configured to be brought into sliding contact with a flat surface of the flat cable in a case where the flat cable is being curved;
• and
• a side surface facing the reading unit in the sub-scanning direction,
• wherein the housing comprises:
• a first surface facing the sliding contact surface and abutting against the flat surface of the flat cable;
• a second surface facing the side surface and disposed at a position farther from the sliding contact surface than the first surface in a main-scanning direction orthogonal to the sub-scanning direction;
• and
• a connecting surface disposed at a position farther from the sliding contact surface in the main-scanning direction than a first extension line including the first surface and farther from the side surface in the sub-scanning direction than a second extension line including the second surface when viewed in a normal direction orthogonal to a surface direction of the sheet support surface, the connecting surface being configured to connect the first surface and the second surface, and
• wherein the connecting surface abuts against the flat surface of the flat cable in a case where the reading unit performs the reading operation.