Photocopying – Contact printing – Light boxes
Patent
1992-07-10
1993-07-20
Grimley, A. T.
Photocopying
Contact printing
Light boxes
141383, 141386, 222DIG1, 355245, G03G 1506
Patent
active
052298248
ABSTRACT:
An integral type processing unit has a photosensitive drum, a developing unit for forming a developer toner image on the photosensitive drum, and a cleaning unit for scraping off residual toners from the drum. The developing unit does not have sufficient internal volume for accumulating therein the developer toners whose amount meet with the service life of the other components. Therefore, toner containers are replaceably attached to the developing unit for supplementing the developer toners therein. In order to limit the replacement times of the toner containers, each of the toner containers are provided with a segment separable therefrom. Further, a receiving segment is provided at the developing unit engageable with the separable segment. The receiving segment has a predetermined number of receiving portions. If all receiving portions are filled with the separable segments, it becomes no longer possible to further replace the toner container with a new container.
REFERENCES:
patent: 4972887 (1990-11-01), Hacknauer et al.
patent: 4997016 (1991-03-01), Hacknauer et al.
Nakai Hitoshi
Nishimura Soichiro
Okabe Yasushi
Tsusaka Shusaku
Brother Kogyo Kabushiki Kaisha
Grimley A. T.
Smith Matthew S.
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