Patent ID: 6952546

Claim:
An image forming apparatus, comprising: an image bearing member to be moved rotationally, charging means for electrically charging said image bearing member and toner remaining on said image bearing member, electrostatic latent image forming means for forming an electrostatic latent image on said image bearing member charged by said charging means, developing means for visualizing the electrostatic latent image while recovering the toner remaining on said image bearing member, toner charging means which is disposed upstream from said charging means in a rotational direction of said image bearing member and is to be supplied with a voltage of a polarity identical to that of a voltage to be applied to said charging means to electrically charge the toner remaining on said image bearing member, recording means for recording data regarding an operation history of said image forming apparatus, and voltage switching means for switching a first voltage applied to said toner charging means to a second voltage, higher than the first voltage, as an absolute value, applied to said toner charging means on the basis of the data.