IMAGE FORMING APPARATUS
PROBLEM TO BE SOLVED: To provide an image forming apparatus that easily removes stains on a developer carrier of a developing device without adopting a cleaning member.SOLUTION: In an image forming apparatus, a cleaning control unit is provided to a developer carrier of at least one developing devic...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide an image forming apparatus that easily removes stains on a developer carrier of a developing device without adopting a cleaning member.SOLUTION: In an image forming apparatus, a cleaning control unit is provided to a developer carrier of at least one developing device in an image forming unit. The cleaning control unit determines accumulated contamination degree of the developer carrier on the basis of image information; forms an electrostatic latent image for cleaning a developer carrier on an image carrier 1 in the amount of one revolution or more of the developer carrier depending on the accumulated contamination degree when the accumulated contamination degree exceeds a predetermined accumulated contamination degree; and causes the developing device to develop the electrostatic latent image to clean the developer carrier. |
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