Electrophotography – Control of electrophotography process – Control of developing
Patent
1998-04-03
2000-04-25
Royer, William
Electrophotography
Control of electrophotography process
Control of developing
399 59, 399 61, 399 62, 399253, G03G 1510
Patent
active
06055388&
ABSTRACT:
An image forming apparatus includes an image bearing member, a latent image forming device that forms a latent image on the image bearing member, a developing device that develops latent image on said image bearing member to a toner image with a two-component developer, and a toner density detecting device that detects toner density of the two-component developer in which the toner image is formed and outputted as a visible image onto a transfer member. A control device is provided for agitating the developer for a predetermined time period during an initial setting is performed for the developer, detecting a toner density of said developer after the predetermined agitation, and performing an abnormal process when a result of the detection is out of the predetermined range. A corresponding method recovers from a deterioration of an amount of charge of the toner and decreased bulk of the developer, and includes the steps of detecting a developer amount with an unused-state detection switch, detecting an output value of a toner density detecting sensor, agitating the developer, measuring an agitating time period, stopping the agitating operation indicating warning, and indicating error message.
REFERENCES:
patent: 5077584 (1991-12-01), Tanaka et al.
patent: 5103264 (1992-04-01), Bhagat
patent: 5109254 (1992-04-01), Oka et al.
patent: 5557382 (1996-09-01), Tatsumi et al.
patent: 5594529 (1997-01-01), Yamashita et al.
patent: 5594535 (1997-01-01), Beaufort et al.
patent: 5745822 (1998-04-01), Nishimura et al.
patent: 5839018 (1998-11-01), Asanuma et al.
Amemiya Ken
Mizuishi Haruji
Oh-Hori Mayumi
Suda Takeo
Tanaka Masaru
Moldafsky Greg
Ricoh & Company, Ltd.
Royer William
LandOfFree
Image forming apparatus and method for obtaining appropriate ton does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image forming apparatus and method for obtaining appropriate ton, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus and method for obtaining appropriate ton will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1000720