Developing device with toner storing and recovery chambers

A developing device having a toner carrying member for forming a toner layer comprising:

• a toner storing chamber for storing toner;
• a toner supplying chamber disposed above a side of said toner storing chamber, and supplying toner to said toner carrying member;
• a regulating member disposed below said toner carrying member, said regulating member regulating an amount of toner attached to said toner carrying member;
• a toner recovery chamber disposed below said toner supplying chamber, said toner recovery chamber recovering a surplus of toner regulated by said regulating member and having an agitating member for agitating recovered toner;
• and
• a separating member disposed between said toner supply chamber and said toner recovery chamber, and separating a supply of toner from a recovery of toner.

A electrophotographic apparatus comprising:

• a photosensitive member;
• an exposing device for forming an electrostatic latent image on said photosensitive member;
• a developing device which attaches toner on said photosensitive member, and forms a toner image;
• and
• a transfer member for transferring said toner image onto a printing medium;
• wherein said developing device comprises:
• a toner storing chamber for storing toner of a nonmagnetic one-component developer;
• a toner carrying member for forming a toner layer of said toner;
• a regulating member for regulating an amount of toner attached to said toner carrying member;
• a toner recovery chamber having an agitating member for agitating recovered toner;
• and
• a separating member for separating a toner supply chamber for said toner carrying member from said toner recovery chamber of toner regulated by said regulating member.

A electrophotographic apparatus comprising:

• a photosensitive belt;
• a plurality of developing devices disposed on one side of said photosensitive belt, and storing toner of a nonmagnetic one-component developer;
• and
• an intermediate transfer drum disposed on another side of said photosensitive belt;
• wherein each of said developing devices comprises a toner carrying member for forming a toner image on said photosensitive belt, said toner carrying member being moveable from a downward direction in a gravity direction to an upward direction in a position thereof facing said photosensitive belt, and
• a toner recovery chamber having an agitating member for agitating recovered toner.

A developing device comprising:

• a toner storing chamber for storing toner of a developer;
• a toner carrying member for forming a toner layer of said toner;
• a regulating member for regulating an amount of toner attached to said toner carrying member, said regulating member being disposed to below said toner carrying member;
• a toner supply chamber having a toner supply member for supplying toner to said toner carrying member;
• a toner recovery chamber for recovering a surplus of toner regulated by said regulating member;
• and
• a separating member for separating said toner supply chamber and said toner recovery chamber.

A developing device having a toner carrying member for forming a toner layer comprising:

• a toner storing chamber for storing toner;
• a toner supplying chamber disposed above a side of said toner storing chamber, and having a toner supply member for supplying toner to said toner carrying member;
• a regulating member disposed below said toner carrying member, said regulating member regulating an amount of toner attached to said toner carrying member;
• a toner recovery chamber disposed below said toner supplying chamber, said toner recovery chamber recovering a surplus of toner regulated by said regulating member;
• and
• a separating member disposed between said toner supply chamber and said toner recovery chamber, and separating a supply of toner from a recovery of toner.