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image forming device

A technology of image and tooth shape, which is applied in the direction of electrical recording technology using charge graphics, equipment and instruments for electrical recording technology using charge graphics

Active Publication Date: 2019-09-24
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the clutch mechanism that obtains intermittent rotational motion from a continuously rotational drive source, it is difficult to obtain intermittent rotational motion at a small angle while suppressing deceleration of the angular velocity when the operating speed of the actuator is slow.

Method used

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Experimental program
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no. 1 approach

[0033] First, edge reference figure 1 A general configuration of the entire image forming apparatus 10 according to the first embodiment of the present invention will be described. The image forming apparatus 10 is an electrophotographic tandem image forming apparatus. exist figure 1 In the illustrated example, the image forming apparatus 10 is a color printer. Other examples of the image forming apparatus 10 include a color copying machine, a color facsimile machine, or a digital multifunction machine having a color image forming function.

[0034] The image forming apparatus 10 includes a sheet cassette 2, a sheet conveying unit 3, a plurality of developer replenishing units 40, a plurality of image forming units 4, an optical scanning unit 51, a second transfer unit 52, a fixing portion 53, the intermediate transfer belt 48, the control portion 8, and the like. In addition, the image forming apparatus 10 further includes a motor 6 and a developer replenishment unit driv...

no. 2 approach

[0115] Below, side reference Figure 10-15 Next, an image forming apparatus according to a second embodiment of the present invention will be described. The image forming apparatus of the second embodiment has a configuration in which the first intermittent transmission mechanism 79 in the image forming apparatus 10 is replaced with the first intermittent transmission mechanism 79A.

[0116] Figure 10 It is a perspective view of 79 A of 1st intermittent transmission mechanisms. Figure 11 , Figure 12 is a front view of the first intermittent transmission mechanism 79A. Figure 13 ~ Figure 15 It is a front view of a portion of the elastic rotation mechanism 750 included in the first intermittent transmission mechanism 79A. In addition, in Figure 10 ~ Figure 15 in, with Figure 1 to Figure 14 The same constituent elements as the illustrated constituent elements are given the same reference numerals.

[0117] In the image forming apparatus according to the second embodi...

no. 3 approach

[0150] Below, side reference Figure 16 , Figure 17 Next, an image forming apparatus according to a third embodiment of the present invention will be described. The image forming apparatus of the third embodiment has a configuration in which the second intermittent transmission mechanism 78 in the image forming apparatus 10 is replaced with a second intermittent transmission mechanism 78A.

[0151] Figure 16 , Figure 17 It is a front view of the second intermittent transmission mechanism 78A. In addition, in Figure 16 , Figure 17 in, with Figure 1 to Figure 14 The same constituent elements as the illustrated constituent elements are given the same reference numerals.

[0152] In the image forming apparatus according to the third embodiment, each monochrome developer replenishment unit driving mechanism 70 includes a second intermittent transmission mechanism 78A instead of the second intermittent transmission mechanism 78 . The second intermittent transmission me...

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Abstract

It is an object of the present invention to provide an image forming apparatus capable of intermittently rotating a developer conveying portion at a small angle while suppressing deceleration of the angular velocity even when the operating speed of an actuator is slow. The source switches between transmitting power to the developer conveying portion and not transmitting power to the developer conveying portion. The switching transmission mechanism of the first intermittent transmission mechanism (79) switches between a state of transmitting rotational force to the intermediate rotating body (72) and a state of not transmitting rotational force to the intermediate rotating body (72) according to the action of the actuator (74). The second intermittent transmission mechanism (78) switches between a state of transmitting the rotational force of the intermediate rotating body (72) to the output side rotating body (73) and a state of not transmitting the rotating force of the output side rotating body (73).

Description

technical field [0001] The present invention relates to an electrophotographic image forming apparatus. Background technique [0002] Generally, an electrophotographic image forming apparatus includes a developing unit and a developer replenishing unit. The developing unit has a developing roller for supplying developer to the image carrier. The developer replenishment unit includes a developer delivery unit such as a developer delivery unit that is rotationally driven to deliver the developer from a replenishment container storing the developer to the development unit. [0003] The amount of the developer in the developing unit can be maintained at the right amount. In this case, it is necessary to intermittently operate the developer conveying portion during the operation of the developing portion. [0004] For example, it is known that a clutch mechanism including a planetary gear and an actuator is provided in each of a plurality of the developer replenishing section...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/08
CPCG03G15/0891G03G21/1857G03G15/0868G03G21/1647G03G2221/1657G03G15/0887
Inventor 藤原大辅
Owner KYOCERA DOCUMENT SOLUTIONS INC