Patent ID: 9316998
Filing Date: 2016-04-19
CPC Classification: G03G

Claim Text:
1. An image forming apparatus comprising: a waste toner case attachably/detachably provided in an apparatus main body via an opening part to collect a waste toner ejected from an image forming part forming an image by a toner; an optical sensor detecting whether or not the waste toner case is filled with the waste toner; a cover turnably closing the opening part of the apparatus main body; a shading member arranged between the cover and the optical sensor to cover the optical sensor in a state where the waste toner case is attached in the apparatus main body and the cover is closed; and an interlocking device interlocking the opening/closing operation of the cover to move the shading member; wherein the shading member is moved between a position to cover the optical sensor in a state where the cover closed and a position separated from the optical sensor in a state where the cover opened.