| 摘要 |
PROBLEM TO BE SOLVED: To prevent abnormal sound made by the eccentricity of a screw and also prevent abnormal sound made by the slack of the screw, which occurs owing to frictional force produced by the eccentricity. SOLUTION: The inside diameter of a screw bearing (37) on the side of a waste-toner discharging opening is increased, and an increase in radial pressure caused by the eccentricity of the screw (12) is absorbed by the bearing. In addition, the screw on the drive side is fixed using a coupling so that a space is left in the axial and radial directions of the screw. Such a structure absorbs the axial and radial slack of the screw, which occurs owing to frictional force produced by the eccentricity of the screw. COPYRIGHT: (C)2005,JPO&NCIPI |
