DEVICE FOR REMOVING LIQUID TONER UNDER VACUUM FROM RECORDING HOLDING MEMBER

摘要

PURPOSE: To increase the circulation of liquid toner and to improve the throughput of development by providing a developing electrode and a shroud having an edge near to space between the developing electrode and the surface of a recording holding member and surrounding the developing electrode. CONSTITUTION: The shroud 14 surrounding a developing roller 12 is divided in a longitudinal direction to be a supply chamber 20 and a feedback chamber 22 by a wiper blade 18. The edge 36 projecting into a developing zone is provided on the downstream side of the shroud 14 with respect to the rotation of the roller 12 and the recording holding member 16. The edge 36 is positioned to leave the member 16 near to the developing zone in the flow of air from the outside of the shroud 14 and remove excess liquid toner from the surface of the member 16. Thus, the circulation of the liquid toner passing the developing zone is made large and toner particles are surely supplied to an image, then the throughput of development is improved.