| 摘要 |
PURPOSE:To reduce toner sticking on a conveying member and prevent image staining in both normal development and reversal development by using a well conductive material for an unfixed transfer material conveying member such as a conveyor roller and a conveyor roll. CONSTITUTION:The conveyor roll 122 is made of the well conductive material such as conductive resin metal, a roll shaft 126 and a shaft holding material 127 also have good conductivity, and the holding material 127 is grounded through a lead wire 130. Consequently, even when two kinds of toner which are different in electrostatic charge polarity and used for normal development and reversal development are used, the electrostatic force for attracting unfixed toner onto the conveyor roll 122 decreases greatly and the toner becomes hard to stick on the roll. |
