| 摘要 |
Disclosed is a developing unit 6 including a tank containing a liquid toner, a pick-up roller 10 for drawing the liquid toner from the tank, an application roller 11 whose circumferential surface 11 a is supplied with the liquid toner by the pick-up roller 10 , and a developing roller 12 whose circumferential surface 12 a is applied with the liquid toner by the application roller 11 . The pick-up roller 10 and the application roller 11 are arranged in parallel to each other and circumferential surfaces 10 a , 11 a thereof are in contact with each other. The circumferential surfaces 10 a , 11 a of the pick-up roller 10 and the application roller 11 are formed with a plurality of grooves 13, 14 , respectively, which extend continuously in the axial direction X 1.
|
