BOTH-SIDE RECORDING ION FLOW RECORDER

PROBLEM TO BE SOLVED: To execute recording on both sides of recording paper at a device having a means executing development with developer whose toner wt.% is set to be 5-35% by forming a conductive layer and a dielectric layer on both sides of the recording paper and providing a part where the conductive layer is exposed at the end part of both sides of the recording paper for taking out a magnetic pole from both conductive layers. SOLUTION: An upper face conductive body layer 102 and a lower face conductive body layer 104 are formed on both sides of the recording medium base material 101 of the recording paper, and an upper face dielectric body layer 103 and a lower face dielectric body layer 105 are respectively formed on the surface. The conductive body layers 102 and 104 are electrically exposed at both end parts of the recording paper, and function as the magnetic pole. Ions reaching the recording paper are electrified on the upper face dielectric body layer 103, and an electrostatic latent image is formed. The basic potential of the recording paper is secured by being brought into contact with the upper face conductive body layer 102 provided at both end parts of the recording paper on the side of a recording face and electrically exposed. Thus, the formation and development of the electrostatic latent image are executed on both sides, so that the recording on both side of the recording paper is made possible by inverting and carrying the recording paper by an inversion mechanism.