Patent ID: 6226469
Filing Date: 2001-05-01
Classification: G03G

Abstract:
An image forming apparatus comprising:an image bearing member;image forming means for sequentially forming toner images of different colors on said image bearing member, said image forming means including a charging member for electrically charging said image bearing member to a polarity which is the same as a regular charging polarity of the toner;an intermediary transfer member having a volume resistivity of 10.sup.10 -10.sup.16.OMEGA..multidot.cm;image transferring means for applying a voltage to said intermediary transfer member to transfer electrostatically, sequentially and superimposedly the toner images of the different colors formed on said image bearing member by said image forming means onto said intermediary transfer member, wherein toner images on said intermediary transfer member are transferred onto a transfer material; andcontrol means for controlling a voltage applied to said charging member, said control means controlling the voltage applied to said intermediary transfer member by said image transferring means in accordance with the voltage applied to said charging member.