Patent ID: 9645525
Date: 2017-05-09
CPC Classifications: G03G

Claim:
1. An electrophotographic image forming apparatus comprising: a toner supply unit that comprises a toner containing unit and a toner discharging unit in which a toner outlet is provided; a photoreceptor unit comprising a photoreceptor on which an electrostatic latent image is formed; a development unit comprising a development roller that supplies toner to the electrostatic latent image to develop the electrostatic latent image and a supply roller that supplies toner received from the toner containing unit via the toner outlet to the development roller; a first toner supply member that supplies toner of the toner containing unit to the toner discharging unit; and a second toner supply member that transports toner of the toner discharging unit to the toner outlet, wherein the first toner supply member is located in a second quadrant from among first through fourth quadrants which are determined based on a vertical line and a horizontal line which intersect at the second toner supply member as the origin, wherein the photoreceptor and the supply roller and the development roller are located in the fourth quadrant, wherein the development unit further comprises: a toner inlet facing the toner outlet; a first toner transporting member that transports toner supplied through the toner inlet in an axial direction of the supply roller; and a toner supply guide that is disposed between the first toner transporting member and the supply roller and includes a slit which has a length in the axial direction and through which toner is dropped onto the supply roller, wherein the first toner transporting member is located in the fourth quadrant, wherein the second quadrant is diagonal from the fourth quadrant, and wherein an entirety of the toner supply guide is downwardly inclined in the axial direction from a first end portion close to the toner inlet to a second end portion that is opposite to the first end portion.