Patent ID: 9354602
Filing Date: 2016-05-31
CPC Classification: B41J,G03G

Claim Text:
1. An image forming apparatus comprising: a housing storing an image forming portion configured to form an image on a recording medium; an external cover covering an outer side of a side wall of the housing and having an exhaust outlet formed therein; an equipment storage space formed between the side wall of the housing and the external cover; a board box attached to an upper-left part of the side wall of the equipment storage space and storing a board; an opening formed in the side wall and allowing inside of the housing to communicate with the equipment storage space; an exhaust fan disposed in the equipment storage space and configured to take in air from the housing via the opening and exhaust the air from the exhaust outlet formed in the external cover; a heat generating equipment disposed in the equipment storage space; and a duct connecting an air outlet of the exhaust fan and the exhaust outlet formed in the external cover, wherein the heat generating equipment is disposed below the duct, the duct includes a top wall, a bottom wall, a left wall, and a right wall, the top wall and the bottom wall facing each other in an up-down direction, the left wall and the right wall facing each other in a left-right direction, a cut is formed at a center of a front end of the bottom wall in the left-right direction, and in a plan view, the cut is opened toward a front side and is elongated in the left-right direction, a first guide plate and a second guide plate configured to guide air around the heat generating equipment to the cut are provided on the bottom wall, the first guide plate includes an inclined plate and a vertical plate, the inclined plate being inclined from a right end of the bottom wall to a lower right, the vertical plate extending from a lower end of the inclined plate downward, the second guide plate projects forward from a left end of the bottom wall, and a flow guide passage is formed by the external cover, the first guide plate, the second guide plate, the side wall, and the right wall of the board box, the flow guide passage communicating with inside of the duct via the cut.