Patent ID: 8913923

Claim:
An image forming apparatus, comprising: an image bearing member; a charger adapted to charge the image bearing member; an irradiator adapted to irradiate the charged image bearing member with light to form an electrostatic latent image thereon; a developing device adapted to develop the electrostatic latent image into a toner image with toner; a transfer device adapted to transfer the toner image from the image bearing member; a neutralizer adapted to neutralize the image bearing member by emitting neutralization light thereto; and a varying device adapted to vary an amount of the neutralization light to be emitted to the image bearing member by pulse-width modulation of a voltage to be supplied to the neutralizer, wherein the following formula is satisfied: f/V> 5 wherein f (Hz) represents a frequency of the pulse-width modulation and V (mm/s) represents a linear speed of the image bearing member wherein the charger is adapted to be supplied with an AC charging bias in which a DC bias is overlapped with an AC bias, and wherein the following inequation is satisfied: f/fAC> 5 wherein fAC (Hz) represents a frequency of the AC charging bias.