Patent ID: 8346116

Claim:
An image forming apparatus comprising: an image carrier; a charging member that charges a surface of the image carrier; a blast port that is provided in almost parallel with a longitudinal direction of the charging member, outside air being sent to the charging member through the blast port; an air inlet that is provided on one of end sides in the longitudinal direction of the charging member and takes the outside air in; a guiding passage that guides, to the blast port, the outside air taken in through the air inlet; a first guiding member that is provided in the closest position to an air inlet side of the guiding passage and is formed with a curve from the air inlet side to the blast port side; a second guiding member that is provided in almost parallel with the longitudinal direction of the charging member in the guiding passage; and a third guiding member that is provided on the blast port side from the second guiding member in almost parallel with the longitudinal direction of the charging member in the guiding passage, wherein the first guiding member is closer to an air inlet side of the guiding passage than the second guiding member and the third guiding member, and wherein an end on the air inlet side of the second guiding member is positioned on the air inlet side from an end on the air inlet side of the third guiding member and a part of the second and third guiding members is provided to overlap with the first guiding member in the longitudinal direction of the charging member.