Photocopying – Contact printing – Light boxes
Patent
1989-08-25
1990-07-17
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355208, G03G 2100
Patent
active
049424319
ABSTRACT:
An image forming apparatus includes an image bearing member; a latent image forming device for forming a latent image on the image bearing member; a developing device for developing the latent image, including, a developer container for containing a developer including carrier and toner particles, a toner container for containing the toner particles, a toner supply device for supplying the toner particles from the toner container to the developer container, a developer carrying member for carrying on its surface the developer supplied from the developer container, a sensor for detecting a toner content in the developer; a control device for controlling the toner supply from the toner container to the developer container on the basis of an output of the sensor, wherein when a toner supply signal is not produced within a predetermined period of time, a predetermined latent image is formed on the image bearing member, and the predetermined latent image is developed by the developing device.
REFERENCES:
patent: 4341461 (1982-07-01), Fantozzi
patent: 4607933 (1986-08-01), Haneda et al.
patent: 4639117 (1987-01-01), Murai et al.
patent: 4785331 (1988-12-01), Oka et al.
patent: 4847659 (1989-07-01), Resch, III
Canon Kabushiki Kaisha
Grimley A. T.
Hoffman Sandra L.
LandOfFree
Image forming apparatus 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-97131