Electrophotography – Image formation – Development
Patent
1998-09-30
2000-05-30
Beatty, Robert
Electrophotography
Image formation
Development
399260, G03G 1508
Patent
active
060700351
ABSTRACT:
In an image forming apparatus having a developing unit for developing an image using toner, a toner box for withholding the toner, and a toner transportation section for transporting the toner withheld in the toner box to the developing unit, the toner transportation section includes a transportation screw portion having formed a spiral blade section on its shaft, a pipe section for controlling a toner transportation route by covering the transportation screw portion of the toner transportation section, and a toner flow suppressing section for suppressing flow of the toner from a space between the transportation screw and pipe section. Consequently, a toner transportation opening formed near the transportation section can be closed, and therefore, the flowing of toner into the developing unit can be controlled or reduced by a simple and inexpensive arrangement.
REFERENCES:
patent: 3724725 (1973-04-01), Stauffer
patent: 4558659 (1985-12-01), Alden
patent: 4803513 (1989-02-01), Nishise et al.
patent: 5017966 (1991-05-01), Suga
patent: 5185631 (1993-02-01), Shibata
patent: 5307129 (1994-04-01), Miura et al.
patent: 5629758 (1997-05-01), Kageyama et al.
patent: 5909609 (1999-06-01), Yahata et al.
Asanuma Masato
Fujita Syouichi
Kawabata Itaru
Sakita Hirofumi
Sato Eiji
Beatty Robert
Sharp Kabushiki Kaisha
LandOfFree
Image forming apparatus having developer supply device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image forming apparatus having developer supply device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus having developer supply device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1917349