Electrification adjustment apparatus and image forming apparatus

An image forming apparatus comprising:

• an electrification adjustment apparatus for executing an electrification adjustment to a recording material to be conveyed;
• and
• an image forming unit for forming an image on the recording material which has been subjected to the electrification adjustment, wherein:
• the electrification adjustment apparatus includes
• a conveyor member for conveying a recording material,
• a first electrification adjuster disposed to face the recording material being conveyed, the first electrification adjuster supplying a charge with one polarity,
• a second electrification adjuster disposed to face the recording material at a downstream side of the first electrification adjuster in a conveying direction, the second electrification adjuster supplying a charge with opposite polarity to the polarity of the charge supplied by the first electrification adjuster,
• a first DC power supply for a DC power supply to the first electrification adjuster, and
• a second DC power supply for a DC power supply to the second electrification adjuster, the second DC power supply having a polarity opposite to the polarity of the first DC power supply;
• and
• an electrostatic capacity between a surface of the recording material, which faces the second electrification adjuster and an electrode partially or entirely formed from the conveyor member is smaller than an electrostatic capacity between a surface of the recording material, which faces the first electrification adjuster and an electrode partially or entirely formed from the conveyor member, and any one of the surface and a back surface of the recording material is in contact with the conveyor member in a region between the first electrification adjuster and the second electrification adjuster.