IMAGE FORMING APPARATUS AND LIGHT GUIDE MEMBER

摘要

A light guide member has a transmitting/reflecting portion transmitting and reflecting light that is emitted from a light source, to enter one end of the light guide member in a longitudinal direction, and be guided to the other end of the light guide member so that the light is applied to: a position between the developing roller and the transfer roller on the image carrier on a downstream side in the traveling direction of the transfer target member; and a position between the transfer roller and the cleaning portion on the image carrier on an upstream side in the traveling direction of the transfer target member. Furthermore, the light guide member has a convex portion having an arc-shaped cross section and being formed outward at a position opposing the transmitting/reflecting portion in a part of a predetermined specific region at one end or both ends in the longitudinal direction.

主权项

1. An image forming apparatus comprising:
a plurality of image carriers arranged along a traveling direction of a transfer target member; a developing roller configured to develop an electrostatic latent image formed on each image carrier as a toner image; a transfer roller configured to transfer the toner image formed on each image carrier onto the transfer target member; a cleaning portion configured to clean each image carrier after the toner image is transferred onto the transfer target member by the transfer roller; a light source configured to emit light used to discharge each image carrier; and a elongated light guide member having a transmitting/reflecting portion and a convex portion, the transmitting/reflecting portion transmitting and reflecting light that is emitted from the light source, to enter one end of the light guide member in a longitudinal direction, and be guided to the other end of the light guide member so that the light is applied to: a position between the developing roller and the transfer roller on the image carrier on a downstream side in the traveling direction of the transfer target member; and a position between the transfer roller and the cleaning portion on the image carrier on an upstream side in the traveling direction of the transfer target member, the convex portion having an arc-shaped cross section and being formed outward at a position opposing the transmitting/reflecting portion in a part of a predetermined specific region at one end or both ends in the longitudinal direction.