Optical scanning apparatus and image forming apparatus including the optical scanning apparatus

摘要

An optical scanning apparatus includes a light source configured to emit a light beam, a rotating polygon mirror configured to deflect the light beam such that the light beam scans a photosensitive member, an optical box to which the rotating polygon mirror is attached and which includes a first portion, and a holding member configured to hold the light source, including a second portion and a protrusion portion, and attached to the optical box such that the first portion of the optical box and the second portion of the holding member form a gap therebetween, wherein the holding member is attached to the optical box with an adhesive poured into the gap, and the protrusion portion is arranged toward the optical box from the holding member along a position in the gap into which the adhesive is poured to prevent the adhesive from falling off the position.

主权项

1. An optical scanning apparatus comprising:
a light source configured to emit a light beam; a rotating polygon mirror configured to deflect the light beam emitted from the light source such that the light beam scans a photosensitive member; an optical box to which the rotating polygon mirror is attached, the optical box including a first portion; and a holding member configured to hold the light source, including a second portion and a protrusion portion, and attached to the optical box such that the first portion of the optical box and the second portion of the holding member form a gap therebetween and the protrusion portion does not contact to the optical box, wherein the holding member is attached to the optical box with an adhesive poured into the gap, and the protrusion portion is arranged toward the optical box from the holding member along a position in the gap into which the adhesive is poured and is disposed under the position in a vertical direction to prevent the adhesive from falling off the position.