Image scanner

An image scanner comprising:

• a document placement surface;
• a conveyance guide configured to guide a document from the document placement surface toward one side in a first direction, then cause the document to make a U-turn downward, and further guide the document toward an other side in the first direction;
• a feed roller configured to feed the document from the document placement surface to the conveyance guide;
• a holder arm swingable about a swing axis located away from the feed roller toward the one side in the first direction, the swing axis extending in a second direction perpendicular to the first direction and an upper-lower direction, the holder arm rotatably supporting the feed roller;
• a conveyance roller configured to convey the document fed by the feed roller along the conveyance guide;
• a first reading sensor configured to read a first surface of the document conveyed by the conveyance roller toward the other side in the first direction, the first surface being a surface facing downward;
• a second reading sensor disposed away from the first reading sensor toward the other side in the first direction, the second reading sensor being configured to read a second surface of the document that has passed the first reading sensor, the second surface being a surface facing upward;
• a plurality of elastic bodies located above the second reading sensor, the plurality of elastic bodies being configured to press the second reading sensor toward the document that is conveyed toward the other side in the first direction;
• a chute constituting a part of the conveyance guide, the chute integrally including a container portion and a plurality of protrusions, the container portion accommodating the second reading sensor and a lower portion of each of the plurality of elastic bodies, the plurality of protrusions communicating with the container portion and protruding upward from the container portion, each of the plurality of protrusions accommodating an upper portion of a corresponding one of the plurality of elastic bodies, each of the plurality of protrusions having an exposed surface;
• and
• a friction pad configured to contact, from below, the document supported by the document placement surface,
• a recess being formed to be recessed downward from the document placement surface, the feed roller being configured to enter the recess,
• a plurality of openings being formed in the document placement surface, the plurality of openings being configured to receive respective ones of the plurality of protrusions, each of the plurality of openings allowing the exposed surface of a corresponding one of the plurality of protrusions to be exposed to a side to which the document placement surface faces, the exposed surface being a surface facing upward,
• the friction pad, the recess, and each of the plurality of openings being arranged away from one another in the second direction,
• the friction pad and the recess being located downstream of a first edge of the exposed surface in a feed direction and located upstream of a second edge of the exposed surface in the feed direction when viewed in the second direction, the first edge being an upstream edge of the exposed surface in the feed direction, the second edge being a downstream edge of the exposed surface in the feed direction, the feed direction being a direction in which the feed roller feeds the document toward the one side in the first direction.