IMAGE FORMING DEVICE

• Main Author: NAKANO KUNIAKI
• Format: Patent
• Language: English; Japanese
• Published: 17.03.2023
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

To provide an image forming device with which it is possible to more reliably remove a residual waste toner and suppress the malfunctioning of a developing device.SOLUTION: An image forming device 100 comprises: a photoreceptor drum 3; an intermediate transfer belt 71; an intermediate transfer drive roller 72 for driving the intermediate transfer belt 71; a cleaning blade 91 located so as to contact the intermediate transfer belt 71; a developing roller 21 for supplying a toner to the photoreceptor drum 3; a doctor blade 22 for restricting a toner amount and located adjacent to the developing roller 21; and a common rotation drive device for simultaneously driving the photoreceptor drum 3, the intermediate transfer drive roller 72 and the developing roller 21. The photoreceptor drum 3 rotates in the forward direction in image forming operation, and in a maintenance operation which is carried out after the image forming operation terminates, the photoreceptor drum 3 rotates in the reverse direction under a different rotation condition from that during the image forming operation and thereafter rotates in the forward direction. Then the photoreceptor drum 3 stops after the maintenance operation terminates.SELECTED DRAWING: Figure 7 【課題】残留する廃トナーをより確実に除去でき、かつ、現像装置の不具合を抑制できる画像形成装置を提供する。【解決手段】画像形成装置１００は、感光体ドラム３と、中間転写ベルト７１と、中間転写ベルト７１を駆動させる中間転写駆動ローラ７２と、中間転写ベルト７１に当接するように配置されたクリーニングブレード９１と、感光体ドラム３にトナーを供給する現像ローラ２１と、現像ローラ２１に近接して配置され、トナー量を規制するドクターブレード２２と、感光体ドラム３、中間転写駆動ローラ７２及び現像ローラ２１、を同時に回転駆動させる共通回転駆動装置と、を備え、画像形成動作において、感光体ドラム３が正転方向に回転し、画像形成動作終了後に行われる保守動作において、感光体ドラム３が、反転方向に画像形成動作時とは異なる回転条件で回転し、その後、正転方向に回転し、保守動作終了後に、感光体ドラム３が停止する。【選択図】図７