A sheet conveyance apparatus includes a sheet conveyor, a conveyance guide, and a door arranged movably between an open and closed position and configured to press the conveyance guide to move it from a guide open position to a guide closed position. A first retainer engages the conveyance guide so as to retain the conveyance guide, and a second retainer disposed in a position different from the first retainer engages the conveyance guide so as to retain the conveyance guide. When the door is positioned at the closed position, the first and second retainers retain, in different positions, the conveyance guide at the guide closed position, and when the door is positioned at the open position, the first retainer maintains the conveyance guide at the guide closed position and the second retainer releases a retention of the conveyance guide at the guide closed position.