Oki Data Corporation

Yu Kobayashi

Norio Nakajima

Takatoku Shimizu

Masamitsu Nagamine

A positioning apparatus for an optical head includes a cylindrical photoconductive drum, an optical head, and at least one spacer. The cylindrical photoconductive drum extends in a direction of a longitudinal axis thereof. The optical head extends parallel to the longitudinal axis. The spacer is disposed to abut the photoconductive drum, limiting a distance between the optical head and the photoconductive drum. The photoconductive drum has a photoconductor and the spacer is in contact with the photoconductor through sliding friction. The spacer has a first surface in contact with the photoconductor. The photoconductor has a second surface in contact with the first surface. The first surface has a first curvature and the second surface has a second curvature. When the first surface is pressed against the second surface, the spacer may deform resiliently so that the first curvature becomes substantially equal to the second curvature.

Distance maintaining member between optical head and image drum

An LED array head includes a circuit board and a plurality of LED array chips mounted thereon. Each of the plurality of LED array chips has a plurality of light-emitting elements aligned and exposed on a surface thereof. The plurality of LED array chips are aligned on the circuit board in a direction in which the plurality of light-emitting elements are aligned, so that the plurality of light-emitting elements lie on a single straight line. The LED array chips are bonded to the circuit board by an epoxy resin type soft adhesive.

Growing community of inventors

Hachioji, Japan

Yu Kobayashi