Coating apparatus – Control means responsive to a randomly occurring sensed... – Responsive to condition of coating material
Patent
1988-01-19
1989-11-28
Beck, Shrive
Coating apparatus
Control means responsive to a randomly occurring sensed...
Responsive to condition of coating material
118658, 355246, G03G 1508, B05C 1100
Patent
active
048830194
ABSTRACT:
An image forming apparatus including an image bearing member, a developing device for developing a latent image formed on the image bearing member and including a developer carrying member for carrying the developer toward the image bearing member, a toner content detecting device including a reflecting member for receiving light and reflecting a quantity of light corresponding to a reference toner content, a light emitting element and a light receiving element for producing an electric signal in accordance with a quantity of light applied to and received from the reflecting member, and a toner content control device for controlling toner supply to the developing device in accordance with a signal produced by the toner content detecting device. The toner content control device includes a device for storing a ratio of a reference toner content signal to a reference reflection density signal. A toner supply control device is provided for producing a ratio signal representative of a ratio of a toner content signal from the light receiving element to a reflection density signal from the light receiving element, for comparing the ratio signals, and for controlling toner supply to the developing device on the basis of a result of the comparison.
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Amemiya Koji
Inoue Masahiro
Menjo Takeshi
Bashore Alain
Beck Shrive
Canon Kabushiki Kaisha
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