Image forming apparatus

An image forming apparatus comprising:

• an outer housing having an external communication opening;
• a recording medium transfer unit for transferring a recording medium from a lower portion of the outer housing to an upper portion thereof;
• an image forming unit, having a corona discharge member for conducting a corona discharge, for forming an image on the recording medium which is transferred with the transfer unit;
• a hollow air ejection passage body extending from the vicinity of the image forming unit to the external communication opening of the outer housing, and having an air inlet port which is opened in the vicinity of the image forming unit and an air ejection port which is opened at the external communication opening;
• and
• an air transferring device, provided in the air ejection passage body for sucking air into the air ejection passage body, through the air inlet port and ejecting air to the external communication opening of the outer housing from the air ejection port of the air ejection passage body.