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    • 1. 发明授权
    • Image forming apparatus having a revolver type developing device
    • 具有旋转型显影装置的图像形成装置
    • US5671465A
    • 1997-09-23
    • US567739
    • 1995-12-05
    • Noriyuki KimuraMinoru SuzukiKouji SakamotoKouichi NoguchiTsuyoshi DekiHiroyuki MatsushiroEiichi SasakiTakatsugu FujishiroChiyako Kobayashi
    • Noriyuki KimuraMinoru SuzukiKouji SakamotoKouichi NoguchiTsuyoshi DekiHiroyuki MatsushiroEiichi SasakiTakatsugu FujishiroChiyako Kobayashi
    • G03G15/08G03G15/01G03G15/04
    • G03G15/0126G03G2215/0177
    • In an image forming apparatus, a developing device is disposed adjacent to a belt-like photosensitive member. A rotary type developing device has a hollow cylindrical casing rotatable around a shaft having a central portion for rotation. The developing device includes a casing which is rotated in a predetermined direction, and four partitions which divide the casing to make four developing units which extend radially outward from the shaft. A toner storing section or hopper is provided on one side of the developing device, i.e., on a front side of the image forming apparatus, and a toner cartridge is detachable from a top of the hopper, and the toner cartridge is exchanged when an end signal of the toner is detected by a sensor in the casing. The toner hopper is filled by new toner from the toner cartridge, and the toner is carried by conveyor members, which control an amount of the toner in the casing, and a supply roller supplies the toner to a developing roller. Therefore, the device supplies a required amount of toner to a toner supply roller and a developing roller at all times. This provides an image forming apparatus with a great freedom of layout which needs a minimum sectional space relative to a photoconductive element and which, therefore, has a miniature configuration. Also, if amounts of transport of first and second conveyor members are adequately selected, a uniform developer distribution in a longitudinal direction without resorting to a complicated control is insured.
    • 在图像形成装置中,显影装置邻近带状感光构件设置。 旋转型显影装置具有中空圆筒形壳体,该中空圆柱形壳体可围绕具有用于旋转的中心部分的轴旋转。 显影装置包括沿预定方向旋转的壳体和分隔壳体以形成从轴径向向外延伸的四个显影单元的四个隔板。 调色剂存储部分或料斗设置在显影装置的一侧,即在图像形成装置的前侧,并且调色剂盒可从料斗的顶部拆卸,并且调色剂盒在末端 调色剂的信号通过壳体中的传感器检测。 墨粉盒由调色剂盒中的新调色剂填充,调色剂由传送部件承载,传送部件控制壳体中的调色剂量,供给辊将调色剂供给显影辊。 因此,该装置始终向调色剂供应辊和显影辊提供所需量的调色剂。 这提供了一种具有很大布局自由度的图像形成装置,其需要相对于光导元件的最小截面空间,因此具有微型构造。 此外,如果适当地选择第一和第二输送器构件的输送量,则不会诉诸于复杂的控制,所以在长度方向上均匀的显影剂分布被保证。
    • 3. 发明授权
    • Rotary developing device for image forming apparatus
    • 用于成像设备的旋转显影装置
    • US5537197A
    • 1996-07-16
    • US227347
    • 1994-04-14
    • Takatsugu FujishiroMinoru SuzukiNoriyuki Kimura
    • Takatsugu FujishiroMinoru SuzukiNoriyuki Kimura
    • G03G15/01G03G15/08
    • G03G15/0126
    • A rotary developing device for an image forming apparatus includes a plurality of rotary developing units accommodating a powder developer and being supported around a common axis, and a plurality of toner cartridges corresponding to the plurality of rotary developing units for supplying toner to the plurality of rotary developing units. Each rotary developing unit is moved to a developing position facing a latent image carrier by the rotation about the common axis and an electrostatic latent image formed on the latent image carrier is developed. The plurality of toner cartridges are connected with the plurality of rotary developing units so as to rotate together, and a toner outlet of the toner cartridge is disposed such that the toner is supplied to the respective rotary developing unit by the force of gravity on the toner accommodated in the respective toner cartridge at the time of rotational movement of the toner cartridge.
    • 用于图像形成装置的旋转显影装置包括容纳粉末显影剂并围绕公共轴线支撑的多个旋转显影单元和与多个旋转显影单元相对应的多个调色剂盒,用于向多个旋转 发展单位。 每个旋转显影单元通过围绕公共轴的旋转而移动到面向潜像载体的显影位置,并且形成在潜像载体上的静电潜像被显影。 多个调色剂盒与多个旋转显影单元连接以一起旋转,调色剂盒的调色剂出口被设置成使得调色剂通过重力在调色剂上被供给到各旋转显影单元 在调色剂盒的旋转运动时容纳在相应的调色剂盒中。
    • 7. 发明授权
    • Developing device for image forming apparatus with toner recirculation
operation
    • 具有调色剂再循环操作的图像形成装置的显影装置
    • US5655193A
    • 1997-08-05
    • US529444
    • 1995-09-18
    • Takatsugu FujishiroMinoru SuzukiHiroyuki MatsushiroNoriyuki KimuraKatsuhiro AokiChiyako Kobayashi
    • Takatsugu FujishiroMinoru SuzukiHiroyuki MatsushiroNoriyuki KimuraKatsuhiro AokiChiyako Kobayashi
    • G03G15/08
    • G03G15/0822G03G2215/0819
    • A developing device capable of obviating the cohesion of toner and reducing the amount of dead toner is disclosed. The device has a developing unit accommodating a first and a second screw therein. The first and second screws extend from the toner hopper to the other longitudinal end of the developing unit in parallel to a developing roller and a supply roller. The first screw feeds toner from a toner hopper to a developing section. The second screw collects toner not contributed to development from the developing section and returns it to the first screw for recirculation. In this configuration, the collected toner and dead toner aggregating in the lower portion of the developing unit are forcibly moved to the developing section. The direction in which the screw portion of the second screw is inclined may be partly reversed to form a reverse transfer portion. Alternatively, a part of a casing adjoining the hopper may be implemented as a slant. The reverse transfer portion or the slant recirculates the toner more forcibly.
    • 公开了能够消除调色剂的内聚力并减少死色调色剂量的显影装置。 该装置具有容纳第一和第二螺丝的显影单元。 第一和第二螺丝平行于显影辊和供给辊从调色剂料斗延伸到显影单元的另一纵向端。 第一螺杆将调色剂从调色剂料斗送入显影部分。 第二螺丝收集未显影的调色剂并将其返回到用于再循环的第一螺杆。 在这种结构中,收集的调色剂和在显影单元的下部中聚集的死色调剂被强制地移动到显影部分。 第二螺钉的螺纹部分倾斜的方向可以部分地反向以形成反向转移部分。 或者,与漏斗相邻的壳体的一部分可以实现为倾斜。 反向转印部分或倾斜剂更强制地再循环调色剂。