Patent ID: 8786654

Claim:
An optical print head comprising: a substrate on which multiple light sources aligned in a main scanning direction are mounted to emit beams of light in a direction perpendicular to a surface of the substrate; a lens array to focus the beams of light on an image bearing member to form an image thereon; a housing comprising a guiding portion extending in the main scanning direction, the housing positioning the substrate and the lens array; a cleaner to clean a light-emitting surface of the lens array while moving in the main scanning direction; a moving device operatively connected to the cleaner to move the cleaner; and a supporting member to support both the housing and the cleaner, wherein a first end of the cleaner is disposed at one end of a contact portion of the cleaner in a sub-scanning direction, perpendicular to the main scanning direction, the first end of the cleaner being screwed to a shaft supported in the main scanning direction such that the first end of the cleaner moves along in the main scanning direction as a result of a rotation of the shaft, wherein a second end of the cleaner is disposed at another end of the contact portion of the cleaner in the sub-scanning direction, opposite the first end, the second end of the cleaner being engaged with the guiding portion formed along the main scanning direction of the housing, and wherein the contact portion of the cleaner fits the light-emitting surface of the lens array with a predetermined contact force.