Electrostatic recording apparatus providing an electric field adjacent a developer roller

An electrostatic recording apparatus for forming a latent image of a recording picture on a recording medium, comprising:

• charging means for uniformly charging said recording medium;
• electrostatic latent image forming means for forming the latent image onto said uniformly charged recording medium;
• development means having development roller for developing the electrostatic latent image formed on said recording medium and forming the recording picture, said development roller including a first electrode and second electrode arranged on said development roller via an insulator for said first electrode;
• and
• electric field generating means for applying a predetermined bias voltage to said first and second electrodes and generating an electric field parallel to said recording medium.