Patent ID: 9618877
Date: 2017-04-11
CPC Classifications: G03G

Claim:
1. An image forming apparatus comprising a plurality of image forming units for forming developer images by using different kinds of developers, wherein each of the plurality of image forming units includes: an image carrier for carrying an electrostatic latent image; a developer carrier receiving and holding a developer out of the developers, the developer carrier for developing the electrostatic latent image of the image carrier with the developer; a developer regulating member that regulates a thickness of a layer of the developer held by the developer carrier; and a supply member that supplies the developer to the developer carrier, wherein the image forming units include first and second image forming units, the first image forming unit forming one of the developer images by using a first developer which is a white developer, and the second image forming unit forming another of the developer images by using a second developer out of the developers which is different from the first developer, and further wherein a value, obtained by subtracting an absolute value of a voltage applied to the supply member of the first image forming unit from an absolute value of a voltage applied to the developer regulating member of the first image forming unit, is larger than a value obtained by subtracting an absolute value of a voltage applied to the supply member of the second image forming unit from an absolute value of a voltage applied to the developer regulating member of the second image forming unit, in the first image forming unit, the absolute value of the voltage applied to the developer regulating member is larger than the absolute value of the voltage applied to the supply member.