Sheet conveyance device and image forming apparatus provided therewith

A sheet conveyance device comprising:

• a sheet conveyance passage through which a sheet is conveyed;
• a mounting plate fixed to a recessed portion formed in an inner wall surface of the sheet conveyance passage at one side thereof;
• and
• a sheet detection sensor mounted on the mounting plate, the sheet detection sensor detecting passage of the sheet,
• wherein
• the sheet detection sensor includes a sensor surface facing the sheet conveyance passage,
• the mounting plate includes:
• a mounting surface on which the sheet detection sensor is mounted;
• and
• a first projection piece projecting from the mounting surface toward the sheet conveyance passage, the first projection piece being grounded, and
• the first projection piece is disposed at a position upstream, in a sheet conveyance direction, of the sheet detection sensor on the mounting plate and a distance from the mounting surface to a distal end of the first projection piece is greater than a distance from the mounting surface to the sensor surface,
• a distal edge of the first projection piece is formed in a shape in which a plurality of mountain-shaped projections, projecting in a direction orthogonal to the sheet conveyance direction, are arrayed in a width direction of the mounting plate orthogonal to the sheet conveyance direction and to a projecting direction of the projections.