Patent ID: 9411302
Filing Date: 2016-08-09
CPC Classification: G03G

Claim Text:
1. An image forming apparatus configured to form an image on a sheet electrophotographically, the image forming apparatus comprising: a main body; a first sheet receiving portion detachably attached to a lower portion of the main body and configured to receive sheets; a second sheet receiving portion protruding from the main body and configured to receive sheets; an image forming unit disposed in the main body and configured to form an image on a sheet fed from the first sheet receiving portion and further form an image on a sheet fed from the second sheet receiving portion, the image forming unit including a drum unit, the drum unit including a photosensitive drum configured to carry a developer image to be transferred onto the sheet fed from the second sheet receiving portion, the drum unit being configured to move between a first position in which an image is formable and a second position shifted from the first position in a moving direction of the drum unit; a first feeder mechanism configured to feed the sheets one by one from the first sheet receiving portion toward the image forming unit; a second feeder mechanism configured to feed the sheets one by one from the second sheet receiving portion toward the image forming unit, the second feeder mechanism including: an elastic member configured to exert an elastic force to press the contact member toward the separation roller, wherein the frame receives the elastic force from the elastic member via the separation roller and the contact member when the separation roller is in contact with the contact member, the frame extending in a width direction parallel to an axial direction of the separation roller, and wherein the drum unit includes a restriction portion configured to restrict deformation of the frame in a direction perpendicular to the width direction, the restriction portion being disposed facing the frame supporting the separation roller for separating the sheet from the sheets received on the second sheet receiving portion protruding from the main body.