Image forming machine having a verifiably openable sump shutter

Details Image forming machine having a verifiably openable sump shutter Image forming machine having a verifiably openable sump shutter

1996-05-31

1997-05-27

Pendegrass, Joan H.

Electrophotography

Cleaning of imaging surface

Having handling of removed material

399120, G03G 1503

Patent

active

056341865

ABSTRACT:
A residual toner collecting system is provided in an electrostatographic reproduction machine. The collecting system includes units within the reproduction machine for generating waste or residual toner; members within the machine defining an elongate loading aperture for a removable cartridge, and a fixed position interference member adjacent the loading aperture. The collecting system also includes an elongate cartridge unit for removably loading into the loading aperture, and a residual toner collecting sump assembly connected to an externally directed end of the cartridge unit for receiving residual toner from the residual toner generating units. The collecting sump assembly includes a frame defining a visible end cavity, and a top wall defining a chamber for holding residual toner. The collecting sump assembly also includes an opening into the chamber, and a shutter assembly pivotably mounted to the top wall over the opening. The shutter assembly includes a generally flat shutter plate that is directly engageable by the interference member upon loading of the cartridge unit into the loading aperture. The shutter plate is automatically movable pivotably from a closed non-visible position, into an open position in the visible end cavity so as to be open and verifiably visible.

REFERENCES:
patent: 4849791 (1989-07-01), Hagihara et al.
patent: 5398098 (1995-03-01), Fukunaga et al.

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