Loading patent…
AssigneeCanon Kabushiki Kaisha
InventorsKoji Miura, Jun Miyamoto, Tatsuya Suzuki
Estimating the term…
A method of detecting a developer remaining amount for successively detecting the remaining amount of a developer used for developing an electrostatic latent image formed on an electrophotographic photosensitive member, the method including successively detecting the remaining amount of developer based on a period of time for which a light is blocked by a developer carried by a developer carrying member, wherein the developer is carried by the developer carrying member to a position in which the developer blocks the light that has entered a developer containing portion from a first light transmission opening of said a developer containing portion for containing the developer when the light transmitted from the first light transmission opening to an inside of the developer containing portion is transmitted from a second light transmission opening of the developer containing portion to an outside of the developer containing portion.
A method of detecting a developer remaining amount for successively detecting the remaining amount of a developer used for developing an electrostatic latent image formed on an electrophotographic photosensitive member, said method comprising:
A developing device for developing an electrostatic latent image formed on an electrophotographic photosensitive member, said developing device comprising:
A process cartridge detachably mountable on an electrophotographic image forming apparatus main body, said process cartridge comprising:
An electrophotographic image forming apparatus for forming an image on a recording medium, said apparatus comprising:
An electrophotographic image forming apparatus to which a process cartridge is detachably mountable for forming an image on a recording medium, said apparatus comprising:
Dependencies are inferred from the claim text.