Patent ID: 9261858
Filing Date: 2016-02-16
CPC Classification: G03G

Claim Text:
1. An image forming apparatus having an exhaust air cleaning function to clean exhaust air emitted from an inside of the image forming apparatus and to discharge the cleaned air, and a room air cleaning function to suck air in a room where the image forming apparatus is placed, to clean the air and to discharge the cleaned air, the image forming apparatus comprising: an exhaust air duct capable of forming a first air flow path for the exhaust air cleaning function and a second air flow path for the room air cleaning function, the exhaust air duct having a common use space used in common for the exhaust air cleaning function and the room air cleaning function; a switching member configured to switch a flow path in the exhaust air duct, depending on which of the cleaning functions is activated; a fan configured to discharge air from the common use space in an active state of the exhaust air cleaning function and in an active state of the room air cleaning function; and a control unit configured to control the switching member and to adjust a rotation speed of the fan, depending on which of the cleaning functions is activated.