Patent ID: 8676071

Claim:
An image forming device, comprising: a photoreceptor; a charging station configured to electrically charge the photoreceptor; an exposure station configured to generate a latent image on the photoreceptor; a development station configured to transfer toner to the photoreceptor; a transfer station configured to transfer a toner image from the photoreceptor to a printing medium with a transfer current; one or more ESV (electrostatic volt) sensors operatively associated with an IDZ (interdocument zone) associated with the photoreceptor and a SZ (sheet zone) associated with the photoreceptor, the ESV sensors configured to measure an IDZ voltage at more than one location along the photoreceptor and measure an SZ voltage at more than one location along the photoreceptor; a controller configured to control one or more of the charging station, the exposure station and the transfer station, the controller operatively connected to the one or more ESV sensors and the controller configured to generate a first transfer current substantially within the SZ and a second transfer current within the IDZ, the second transfer current generated by modifying the first transfer current to substantially equalize the IDZ voltage and the SZ voltage measured at more than one location along the photoreceptor.