Image forming apparatus having a control unit that controls exposure energy and related image forming method

摘要

An image forming apparatus and an image forming method for preventing reducing of density of an image transferred to the recording paper due to dropping in a temperature, without providing a temperature sensor. The current detecting unit detects an electric current value generated at the time a test voltage is applied to a transferring member which is provided for transferring a developed image on a photoconductive drum to the paper. The detected current value is input and stored by a printer controller. The printer controller determines an exposure time, based on the stored current value, by reference to a table for determining an exposure time. The printer controller causes the exposure time to be long when the stored current value is small or large.