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A technology for detected objects and components, applied in the field of cartridges, can solve the problems of difficulty in detecting the rotation of the actuator, inability to provide long-stroke rotation of the actuator, and low detection accuracy of developing cartridge information.

Active Publication Date: 2019-04-05
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In this case, long-stroke rotation of the actuator cannot be provided, and detection of the rotation of the actuator by the optical sensor becomes difficult even though the portion to be detected abuts against the actuator.
Therefore, the detection accuracy for determining the developing cartridge information in such a laser printer may decrease

Method used

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no. 2 approach

[0277] will combine Figure 24A and Figure 24B The configuration of the second embodiment of the present invention will be described.

[0278] To avoid repetition, Figure 24A and 24B among those with Figures 1 to 23 Corresponding parts and components in , are denoted by the same reference numerals as in the first embodiment.

[0279] In the first embodiment described above, the sensor gear 72 such as Figure 4 A support spring member 100 is shown. However, in the second embodiment, the second cover 102A supports the spring member 100 as Figure 24B shown.

[0280] Specifically, such as Figure 24A As shown, the second cover 102A of the second embodiment has a fixing portion 112 for fixing the spring member 100 . The fixing part 112 includes an insertion shaft 110 and four fixing protrusions 111 . The insertion shaft 110 has a substantially cylindrical shape arranged coaxially with the receiving portion 107 . The insertion shaft 110 is formed on the inner (right) ...

no. 3 approach

[0293] The following will combine Figure 25 The configuration of the third embodiment of the present invention will be described.

[0294] To avoid repetition, Figure 25 among those with Figures 1 to 23 Corresponding parts and components in , are denoted by the same reference numerals as in the first embodiment.

[0295] In the first embodiment described above, the sensor gear 72 has the sensor gear portion 88 . However, in Figure 25 In the illustrated third embodiment, the sensor gear 72A has a main body portion 120 and a resistance applying member 121 instead of the sensor gear portion 88 .

[0296] The main body portion 120 has a fan-like shape centered on the central axis A2 of the sensor gear support shaft 51 . The resistance applying member 121 is made of a material having a relatively high friction coefficient, such as rubber, and is wound around the outer peripheral surface of the main body part 120 . Due to the shape of the body portion 120 , the outer perip...

no. 4 approach

[0300] Next, combine the Figure 26A The configuration of the fourth embodiment of the present invention will be described.

[0301] To avoid repetition, Figure 26A among those with Figures 1 to 23 Corresponding parts and components in , are denoted by the same reference numerals as in the first embodiment.

[0302] In the sensor gear 72 of the first to third embodiments described above, both the first detected protrusion 95 and the second detected protrusion 96 are configured to contact the actuator 191 when the sensor gear 72 rotates.

[0303] Whereas, in the sensor gear 72B of the fourth embodiment, only the first detected protrusion 95 is configured to contact the actuator 191 when the sensor gear 72B rotates.

[0304] Specifically, such as Figure 26A As shown, the first detected protrusion 95 has a lateral dimension larger than that of the coupling portion 97 in the previous embodiment, and the second detected protrusion 96B has a lateral dimension approximately eq...

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PUM

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Abstract

The present invention provides a cartridge. The cartridge includes: a housing, a drive transmission member, and an object to be detected. The housing has a first wall and a second wall opposing each other in a first direction, the first direction being from the second wall toward the first wall. The drive transmission member is provided on the first wall and is rotatable around a first axis parallel to the first direction to transmit a driving force. The object to be detected is located on the first wall, and can rotate around a second axis parallel to the first axis after receiving the driving force, so as to irreversibly move the object to be detected from the first position to the second position. move. The detected body includes: a detected part; a receiving part for receiving the driving force; and a peripheral part located radially downstream of the receiving part along the detected body away from the second axis.

Description

technical field [0001] The present invention relates to a cartridge mountable in an image forming apparatus employing an electrophotographic method. Background technique [0002] An electrophotographic type printer having a developing cartridge detachably mounted therein is known in the prior art. Usually, this type of printer is provided with a sensor for detecting whether the installed developing cartridge is new. [0003] As an example of such a printer, Japanese Patent Application Laid-Open No. 2011-215374 discloses a laser printer including a main casing and a developing cartridge. The main housing is provided with actuators and optical sensors. The developing cartridge includes a detected rotating body and agitator gears. The detected rotating body is provided with a disk-shaped incomplete gear part (sector qear part) and a detected part, the incomplete gear part has gear teeth along a part of its peripheral surface, and the detected part is bridged on the left end ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/08
CPCG03G15/0863G03G2221/1657F16H13/04
Inventor 清水圭太
Owner BROTHER KOGYO KK