Claims
- 1. A color electrophotographic apparatus comprising:a photosensitive member; an exposing device for forming an electrostatic latent image on said photosensitive member; four developing devices which attach toner on said photosensitive member and form a toner image; and a transfer member for transferring said toner image onto a printing medium; wherein said four developing devices include a yellow image developing device, a magenta image developing device, cyan image developing device, and a black image developing device; and wherein each of said four developing devices include: 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.
- 2. A color electrophotographic apparatus according to claim 1, further comprising an intermediate transfer member sequentially forming a toner image on said photosensitive member by said four developing devices, and forming a color image.
- 3. A color electrophotographic apparatus according to claim 1, wherein said photosensitive member moves from a downward direction in a gravity direction to an upward direction in a position thereof facing said four developing devices.
- 4. A color electrophotographic apparatus comprising:a photosensitive belt; four developing devices disposed in tiers 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 four developing devices comprise a toner supply chamber, a toner carrying member for receiving toner from said toner supply chamber and 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, said toner recovery chamber being separated from said toner supply chamber by a separating member, and respective ones of said four developing devices have a yellow toner, a magenta toner, a cyan toner and a black toner.
- 5. A color electrophotographic apparatus according to claim 4, wherein said toner recovery chamber is disposed below at least a portion of said toner supply chamber.
CROSS REFERENCE TO RELATED APPLICATION
This is a continuation of U.S. application Ser. No. 09/660,544, filed Sep. 12, 2000, now U.S. Pat. No. 6,321,058, which is a continuation of U.S. application Ser. No. 09/297,520, filed May 3, 1999, now U.S. Pat. No. 6,144,829, which is a 371 of PCT/JP96/03286, filed Nov. 8, 1996, the subject matter of which is incorporated by reference herein.
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Continuations (2)
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09/660544 |
Sep 2000 |
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09/987332 |
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09/297520 |
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09/660544 |
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