Image forming apparatus having suction means for eliminating gas

Details Image forming apparatus having suction means for eliminating gas Image forming apparatus having suction means for eliminating gas

1990-12-19

1992-07-21

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355271, 355274, G03G 2100

Patent

active

051327317

ABSTRACT:
An image forming apparatus including a pair of guide plates below developing units and adjacent to a transfer portion, the transfer portion including a transfer charger and a separating charger each of which has a first slit to form first paths and each of the guide plates having at least one second slit to form a second path. The image forming apparatus further includes a suction fan so as to suck gas generated in the transfer portion through the first paths and atmosphere around developing device through the second path.

REFERENCES:
patent: 3777158 (1973-12-01), Kamogawa et al.
patent: 4017065 (1977-04-01), Poehlein
patent: 4202618 (1980-05-01), Waschk et al.
patent: 4466813 (1984-08-01), Avritt et al.
patent: 4491313 (1985-01-01), Schoen
patent: 4922303 (1990-05-01), Takeda et al.
patent: 5028959 (1991-07-01), Gooray

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