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    • 24. 发明申请
    • DEVELOPING DEVICE, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
    • 开发设备,图像形成装置和处理盒
    • US20080317508A1
    • 2008-12-25
    • US12135413
    • 2008-06-09
    • Junichi TERAIKoichi KatoKoichi SakataMaiko KoedaKentaroh TomitaKiyonori Tsuda
    • Junichi TERAIKoichi KatoKoichi SakataMaiko KoedaKentaroh TomitaKiyonori Tsuda
    • G03G15/08
    • G03G15/0844G03G15/0815G03G2215/0838
    • A developing device capable of conveying discharged developer to the outside of the device well by preventing developer from firmly adhering within a discharge conveyance path, as well as an image forming apparatus and a process cartridge having this developing device. A developing device, having: a developing roller; a developer conveyance path having a supply screw and a supply conveyance path; a toner replenishment controller for replenishing the developer to the developer conveyance path; a discharge conveyance path for conveying the developer to the outside of the developing device; a discharge screw serving as a discharge conveying member for applying a conveying force to the developer within the discharge conveyance path; and a developer discharge port serving as developer discharge means for discharging the developer to the discharge conveyance path, wherein the conveying force is applied to the discharged developer intermittently by the discharge screw serving as a discharge conveying member, whereby a shock is applied intermittently to the discharged developer within the discharge conveyance path.
    • 一种能够通过防止显影剂在排出输送路径内牢固地附着而将排出的显影剂输送到装置外部的显影装置,以及具有该显影装置的图像形成装置和处理盒。 一种显影装置,具有:显影辊; 具有供给螺杆和供给输送路径的显影剂输送路径; 用于将显影剂补充到显影剂传送路径的调色剂补充控制器; 用于将显影剂输送到显影装置的外部的排出输送路径; 排出螺杆,用作用于在排出输送路径内向显影剂施加输送力的排出传送部件; 以及作为用于将显影剂排出到排出输送路径的显影剂排出装置的显影剂排出口,其中通过作为排出传送构件的排出螺杆将间歇地施加到排出的显影剂的输送力,从而间歇地施加到 在排出输送路径内排出显影剂。
    • 25. 发明申请
    • DEVELOPING DEVICE AND IMAGE FORMING APPARATUS COMPRISING THE SAME
    • 开发装置和包含其的图像形成装置
    • US20080063433A1
    • 2008-03-13
    • US11853490
    • 2007-09-11
    • Satoru MIYAMOTOKoichi SakataMaiko KoedaKiyonori Tsuda
    • Satoru MIYAMOTOKoichi SakataMaiko KoedaKiyonori Tsuda
    • G03G15/08
    • G03G15/0818G03G2215/0609G03G2215/0619
    • A developing device and image forming apparatus that can satisfy stability over time in relation to amount of developer carried, and prevent developer retention, deterioration of developer and developing sleeve adhesion, wherein the amount of developer carried per unit area on the developer carrier in the developing region is 30 [mg/cm2] to 60 [mg/cm2]; the weight mean particle diameter of the toner is 4.5 [μm] to 8.0 [μm]; the ratio [Dw/Dn] of the toner weight mean particle diameter (Dw) and the number mean particle diameter (Dn) is 1.20 or less; an irregular roughness pattern having the maximum height Rz of the surface roughness of 20 to 40 [μm] and the mean space Sm of the roughness of 100 to 200 [μm] is formed on the surface of the developer carrier; and the relationship between the developing gap PG and the gap DG between the developer restricting member and the developer carrier is 1.0≦(DG/PG)3.0≦.
    • 一种显影装置和图像形成装置,其能够随着时间的推移相对于所携带的显影剂的量而满足稳定性,并且防止显影剂滞留,显影剂的劣化和显影套筒粘附,其中显影剂载体上显影剂承载量在显影剂 区域为30 [mg / cm 2]至60 [mg / cm 2]; 调色剂的重均粒径为4.5μm至8.0μm; 调色剂重量平均粒径(Dw)与数均粒径(Dn)的比[Dw / Dn]为1.20以下, 在显影剂载体的表面上形成表面粗糙度最大高度Rz为20〜40μm,粗糙度平均空间Sm为100〜200μm的不规则粗糙图案。 并且显影间隙PG与显影剂限制构件和显影剂载体之间的间隙DG之间的关系为1.0 <=(DG / PG)3.0 <=。