An exposure window component is provided so as to be separated from an exposure device housing and is attached to an opening through which light from the exposure device housing passes. The exposure window component includes: a transmitting member that allows light from the exposure device housing to pass therethrough; a holding frame that holds the transmitting member; a receiving member that is provided at a periphery of the opening to receive the holding frame when the transmitting member is attached and that removably supports the transmitting member; and a grasping part that is provided at a portion of the holding frame and is grasped when the transmitting member is attached and removed.