Photocopying – Contact printing – Light boxes
Patent
1990-10-31
1992-11-17
Grimley, A. T.
Photocopying
Contact printing
Light boxes
G03G 2100
Patent
active
051647788
ABSTRACT:
A control device for image forming equipment capable of reducing ozone ascribable to an image forming process and detecting failures of the equipment caused by the ozone. Mists are produced from a liquid developer which is a toner-dispersed carrier liquid containing silicone oil during developing, image transferring and fixing steps. The mists and the ozone are discharged to the outside of the equipment by a fan. A filter liquifies the mists and ozone by mixing them together. Errors are detected on the basis of ozone concentration which is sensed by an ozone concentration sensor.
REFERENCES:
patent: 3793205 (1974-02-01), Metcalfe et al.
patent: 4343765 (1982-08-01), Elston et al.
patent: 4760423 (1988-07-01), Holtje et al.
patent: 4853735 (1989-08-01), Kodama et al.
patent: 4885929 (1989-12-01), Kasahara et al.
Ikeda Itsuo
Iwamoto Minoru
Kurotori Tsuneo
Mochizuki Manabu
Tanabe Hiroshi
Grimley A. T.
Horgan Christopher
Ricoh & Company, Ltd.
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