| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce toner aggregates in a liquid developer that is removed from a developing member and returned to a reservoir unit.SOLUTION: A residual liquid developer GC removed and recovered by a removing device 140 passes through a contact part T between a first roll 210 and a second roll 220 of a shear force imparting device 200 and returns to a reservoir tank 152 of a reservoir unit 150. A peripheral velocity V1 of the first roll 210 is controlled to be lower than a peripheral velocity V2 of the second roll 220 to produce a peripheral velocity difference V3 (=V2-V1) between the first roll 210 and the second roll 220 at the contact part T. Thereby, when the residual liquid developer GC passes through the contact part T, shear force is imparted to toner aggregates to grind the toner aggregates. Thus, toner aggregates are eliminated or reduced.</p> |
