| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain an image forming device which is an image forming device using a transfer means of a contact transfer system, obviates drop-out regardless of the various thicknesses of transfer material and transfer material quality, does not give rise to a transfer blur and variation in image lengths and makes it possible to obtain a good image. SOLUTION: This image forming device has an image carrying member 10 for carrying the toner image and a transfer means 14 for transferring the toner image on the image carrying member 10 to the transfer material 22 by coming into contact with the rear surface of the transfer material 22 and imparting charges thereto. Toners consist of at least a binder resin and charge control agent and contain at least two kinds of fine inorganic powders having different average grain sizes. At least one kind of the fine inorganic powder of these two kinds of the fine inorganic powders is subjected to a surface treatment by a silicone oil.</p> |
