Mechanism to prevent toner leakage from an image forming unit

Details Mechanism to prevent toner leakage from an image forming unit Mechanism to prevent toner leakage from an image forming unit

1995-06-22

1997-01-07

Moses, R. L.

Electrophotography

Image formation

Development

399163, G03G 1509

Patent

active

055922686

ABSTRACT:
An image forming unit includes structure to prevent leakage of initial developer containing magnetic carrier and magnetic toner from a case. The image forming unit includes a photoconductive drum, a developing sleeve, and a trimming blade. Auxiliary sealing members are attached to the opposite ends of the trimming blade to stop up gaps between side sealing members in sliding contact with the opposite ends of the developing sleeve, and a protective sheet is removably inserted in the gap between the developing sleeve and the trimming blade. Ferromagnetic strips capable of being magnetized by the magnet roller are attached to the reverse side of the protective sheet at the opposite sides of one end of the protective sheet. The ferromagnetic strips magnetically attract the developer that is about to leak through the gaps to completely prevent leakage of the developer.

REFERENCES:
patent: 4676192 (1987-06-01), Yuge et al.
patent: 5057868 (1991-10-01), Sekino et al.
patent: 5084733 (1992-01-01), Katoh et al.
patent: 5134960 (1992-08-01), Shirai
patent: 5166733 (1992-11-01), Eliason
patent: 5172166 (1992-12-01), Funayama
patent: 5177536 (1993-01-01), Watanabe et al.
patent: 5187326 (1993-02-01), Shirai et al.
patent: 5212521 (1993-05-01), Ogawa et al.
patent: 5475467 (1995-12-01), Watanabe et al.
patent: 5488462 (1996-01-01), Ishikawa et al.

Affiliated with

Also associated with

Rating

Mechanism to prevent toner leakage from an image forming unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanism to prevent toner leakage from an image forming unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanism to prevent toner leakage from an image forming unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1768949