Patent ID: 6070035
Filing Date: 2000-05-30
Classification: G03G

Abstract:
An image forming apparatus comprising:a developing device for developing an image of an original document on a recording medium by using toner;toner withholding means for withholding the toner; andtoner transportation means for transporting the toner withheld in said toner withholding means to said developing device,wherein said toner transportation means includes:a transportation screw having a supporting shaft and a blade section formed thereon;a pipe-wise member for covering said transportation screw in a direction along said supporting shaft; andtoner flow suppressing means for suppressing flow of the toner from a space between said transportation screw and said pipe-wise member said toner flow suppressing means being provided to touch at least a part of an inner wall surface of said pipe-wise member in such a manner that contact with said blade section is allowed.