Patent ID: 8314827

Claim:
An image forming apparatus comprising: a main body housing; a photoconductor; an optical scanner fixed to the main body housing and configured to scan the photoconductor with a light beam, the optical scanner including a light source configured to emit the light beam, an optical element configured to cause the light beam emitted from the light source to form an image on the photoconductor, and a scanner housing in which the optical element is housed, the scanner housing including a support wall on which the optical element is supported, an opposite wall disposed between the support wall and a wall of the main body housing, the opposite wall having one side facing to the support wall and another side facing to the wall of the main body housing, and an inner projection provided between the support wall and the opposite wall, projecting from at least one of the support wall and the opposite wall, and having an extreme end at which a space between the support wall and the opposite wall has a distance that is smaller than distances at all other spaces between the support wall and the opposite wall; and an outer projection provided between the wall of the main body housing and the opposite wall of the scanner housing, projecting from at least one of the wall of the main body housing and the opposite wall of the scanner housing, and having an extreme end at which a space between the wall of the main body housing and the opposite wall of the scanner housing has a distance that is smaller than distances at all other spaces between the wall of the main body housing and the opposite wall of the scanner housing, wherein the space at the extreme end of the inner projection overlaps with the space at the extreme end of the outer projection as viewed from a direction in which the inner projection and the outer projection project.