Developer unit and a toner hopper for an image forming device

Details Developer unit and a toner hopper for an image forming device Developer unit and a toner hopper for an image forming device

1989-10-24

1992-06-09

Braun, Fred L.

Photocopying

Contact printing

Light boxes

G03G 1506, G03G 2100

Patent

active

051211653

ABSTRACT:
A toner hopper which is arranged upwards of the developing unit is elevatably supported in the image forming device in the vertical direction thereof and the connection between the toner hopper and the developing unit can be cancelled by lifting up the toner hopper when drawing out the developing unit so that the structure of the connection portion therebetween can be simplified and the sliding portion can be eliminated to thereby eliminate wearing at the connection therebetween. Furthermore, an apparatus for automatically raising and lowering the toner hopper and an apparatus for maintaining the horizontality of the toner hopper when being elevated and lowered is provided.

REFERENCES:
patent: 4089601 (1978-05-01), Navone
patent: 4460267 (1984-07-01), Ogawa
patent: 4583832 (1986-04-01), Kasamura et al.
patent: 4607939 (1986-08-01), Saito
patent: 4650097 (1987-03-01), Hagihara et al.
patent: 4891674 (1990-01-01), Seyfried

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