Image forming apparatus

摘要

An image forming apparatus includes an image carrier, a charging member, a transferring member, a first voltage applying part, a current measuring part, a fan, a cleaning member and a controlling part.;The controlling part carries out an aging operation rotating the image carrier and bringing the cleaning member in sliding contact with the image carrier before forming an image. The controlling part lengthens a running time of the aging operation in a case where a current value measured by the current measuring part is equal to or less than a first threshold value when the fan blows an outside air to the image carrier and the first voltage applying part applies voltage to one of the charging member and transferring member, in comparison with another case where the current value measured by the current measuring part exceeds the first threshold value.

主权项

1. An image forming apparatus comprising:
an image carrier carrying a toner image; a charging member electrically charging the image carrier; a transferring member transferring the toner image carried on the image carrier to a transferred body; a first voltage applying part applying voltage to one of the charging member and transferring member; a current measuring part measuring current flowing from the first voltage applying part to the charging member when the first voltage applying part applies the voltage to the one of the charging member and transferring member, the current measuring part measuring the current value increasing as humidity and temperature of the apparatus outside gets higher; a fan introducing an outside air to the apparatus inside and blowing the outside air to the image carrier; a cleaning member removing a toner from a surface of the image carrier; and a controlling part configured to carry out an aging operation rotating the image carrier and bringing the cleaning member in sliding contact with the surface of the image carrier before forming an image and to lengthen a running time of the aging operation in a case where the current value measured by the current measuring part is equal to or less than a first threshold value when the fan blows the outside air to the image carrier and the first voltage applying part applies the voltage to the one of the charging member and transferring member, in comparison with another case where the current value measured by the current measuring part exceeds the first threshold value.