Image reading apparatus and method for replacing cable

A method for replacing a cable in an image reading apparatus,

• the apparatus including
• a lower unit, and
• an upper unit configured to open and close an upper portion of the lower unit, in which
• the upper unit includes
• a medium transport path along which a medium is transported,
• a first reading unit disposed in the medium transport path, the first reading unit being configured to read a surface of a transported medium,
• a substrate coupled to the first reading unit,
• the cable having one end and another end, the one end being coupled to a first coupling portion of the first reading unit, the other end being coupled to a second coupling portion of the substrate, and
• a facing portion facing the lower unit in a state in which the upper unit is closed, the facing portion being configured to be attached to and detached from the upper unit, and
• the first coupling portion and the second coupling portion are disposed so as to be separate from each other in a width direction crossing a direction in which a medium is transported in the medium transport path, the method comprising:
• detaching the cable from the first coupling portion and the second coupling portion;
• detaching the facing portion from the upper unit in an open state;
• and
• detaching the cable from the upper unit.