Patent ID: 9651892
Date: 2017-05-16
CPC Classifications: G03G

Claim:
1. A wet type image forming apparatus for printing on a transfer target by using a wet type developer containing toner particles, comprising: a developer carrier supplying said wet type developer to a latent image carrier having an electrostatic latent image formed; a supply member supplying said wet type developer to said developer carrier; said supply member having a surface rotating in a direction similar to a surface of said developer carrier at a similar peripheral velocity at a portion abutting to said developer carrier, and a control unit configured to produce a potential difference causing the toner particles to move from a supply side to a side of said developer carrier by forming an electric field between said developer carrier and said supply member; and a first charging member arranged at a position upstream from the portion of the supply member abutting to said developer carrier in a direction of rotation of said supply member, for charging said toner particles in a wet type developer layer formed by said wet type developer on said supply member; said control unit controlling the potential difference between said developer carrier and said supply member and output of said first charging member, said control unit causing said toner particles on said supply member to move to said developer carrier by providing a potential difference between said developer carrier and said supply member, and controlling an amount of said toner particles on said latent image carrier by controlling output of said first charging member, and said control unit increases the amount of said toner particles on said latent image carrier by lowering output of said first charging member when surface irregularities of said transfer target have become coarse, wherein the control unit causes the toner particles on the supply member to move to the developer carrier by setting the voltage of the supply member to be at least 700 V, and controls the amount of the toner particles on the latent image carrier by controlling a current from the first charging member to the supply member to be in the range from 220 μA to 440 μA.