End cover and developing box

Abstract

The utility model provides an end cover and a developing box with the end cover. The end cover is suitable for the developing box which is detachably arranged in imaging equipment provided with a contact pin. The developing box comprises a developing frame body for accommodating a developing agent and a developing roller rotatably arranged in the developing frame body, and the extending direction of the rotating axis of the developing roller is a first direction; the end cover is provided with an end cover main body and a chip rack for mounting a chip; the chip rack is integrally formed with at least one of the end cover main body and the developing frame body, so that the chip rack is fixed relative to at least one of the end cover main body and the developing frame body; the number of parts arranged in the developing box is reduced, the process is simplified, and movement displacement of a chip rack is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic photographic imaging, in particular to an end cover and a developing box. Background Art

[0002] A developer box is a consumable product used in imaging devices such as laser printers or copiers, which stores the developer required for imaging. When working, the driving force receiving member in the developer box receives the driving force from the imaging device, and the developing member installed in the developer box rotates in a predetermined direction at a predetermined speed. The developing member is used to supply the developer to the surface of the photosensitive member where the electrostatic latent image is formed, so that the electrostatic latent image is developed.

[0003] The driving force receiving member is arranged on one side in the length direction of the developing box; a chip for cooperating with a detection component in an electronic photographic imaging device is also arranged on the same side as the driving force receiving member, and the chip is installed in a chip frame having a mounting portion; an end cover is also included on the same side as the driving force receiving member, the driving force receiving member is exposed through the end cover, and the chip frame is connected to the end cover; in order to prevent the vibration generated when the driving force receiving member transmits the rotational driving force, resulting in poor contact between the chip and the detection component of the imaging device, the prior art is to separate the chip frame from the end cover of the developing box, and to make the chip frame movable relative to the end cover to ensure stable contact between the chip and the detection component in the imaging device.

[0004] In order to realize the above functions, a large number of parts need to be arranged on the developing box, which makes the structure and assembly of the developing box complicated and the cost high. Utility Model Content

[0005] In order to overcome the problems existing in the above-mentioned prior art, the main purpose of the utility model is to provide an end cover and a developing box having the end cover, which can not only simplify the process and save costs, but also enable the chip to contact the printer reliably.

[0006] In order to achieve the above purpose, the utility model specifically adopts the following technical solutions:

[0007] An end cover is suitable for a developer box that can be detachably installed in an imaging device provided with a contact pin; the developer box includes a developer frame for accommodating a developer and a developer roller rotatably arranged in the developer frame, and the direction in which the rotation axis of the developer roller extends is a first direction; the end cover has an end cover body and a chip frame for mounting a chip; the chip frame is integrally formed with at least one of the end cover body and the developer frame, so that the chip frame is fixed relative to at least one of the end cover body and the developer frame.

[0008] Further, the chip frame includes a connecting portion, which is extended from at least one of the end cover body and the developing frame along a first direction and is used to connect the chip frame to at least one of the end cover body and the developing frame.

[0009] Further, along the first direction, the chip frame includes a reinforcing portion extending from at least one of the end cover body and the developing frame body, and the reinforcing portion is used to prevent the chip frame from deforming and moving.

[0010] Furthermore, the developing box has a driving force receiving head, which is used to receive the driving force output by the imaging device; the end cover has a through hole formed on the end cover body and a supporting portion extending from the end cover body, the supporting portion is arranged around the circumference of the through hole, and the supporting portion is used to cooperate with the driving force receiving head.

[0011] Furthermore, the chip rack also includes an avoidance portion, and the direction intersecting the first direction and the second direction is a third direction. Along the third direction, the direction of gravity is downward, and the direction opposite to the direction of gravity is upward. The avoidance portion is located at the upper end of the connecting portion to prevent the end cover from interfering with the imaging device.

[0012] Further, along a direction perpendicular to the first direction, the avoidance portion and the support portion at least partially overlap.

[0013] Further, along the first direction, the dimension of the chip frame is a first length d1; the dimension of the support portion extending leftward from the end cover body is a second length d2; and the first length d1 is greater than the second length d2.

[0014] Furthermore, the chip has an electrical contact portion for electrically contacting a contact pin in an imaging device; along a direction perpendicular to the rotation axis of the developing roller, the minimum distance between a plane parallel to the surface where the electrical contact portion is provided and passing through the rotation axis of the developing roller and the surface where the electrical contact portion is provided is less than or equal to 1.1±0.5 mm.

[0015] The utility model also provides a developing box, comprising a developing frame, a developing roller and any one of the end covers in the above embodiments, wherein the developing roller is rotatably arranged in the developing frame, and the end cover is detachably connected to the developing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the developing box involved in the utility model.

[0017] Figure 2 , Figure 3 and Figure 4 It is a stereoscopic diagram of the end cover of the developing box involved in the utility model.

[0018] Figure 5 It is a side view of the developing box involved in the utility model observed along the first direction. DETAILED DESCRIPTION

[0019] The following further describes in detail the structure of an end cover and a developer box involved in the present invention, as well as other aspects, through specific methods and with reference to the accompanying drawings.

[0020] like Figure 1 As shown, the developing box 100 in this embodiment can be detachably installed in an electronic photographic imaging device (hereinafter referred to as the "imaging device"), and includes a developing frame 110 and a developing roller 120. The developing frame 110 has a accommodating cavity for accommodating a developer. The developing roller is rotatably arranged in the developing frame 110 and is used to supply the developer to the outside of the developing box 100. The developing box 100 also includes a gripping portion 111, and the operator can install or remove the developing box 100 through the gripping portion 111.

[0021] To make the following description clearer, the direction in which the rotation axis L of the developing roller extends is defined as a first direction, and the direction intersecting the first direction is defined as a second direction. Along the second direction, the developing roller 120 and the holding portion 111 are respectively located at two ends of the developing box 100, the developing roller 120 is located at the front end of the developing box 100, and the holding portion 111 is located at the rear end of the developing box.

[0022] Along the first direction, the developing box 100 also has a driving end cover 130, a developing roller gear 121 and a driving force receiving head 140. The driving end cover 130 is detachably mounted on the developing frame 110. The developing roller gear 121 is coaxially arranged with the developing roller 121. The driving force receiving head 140 is arranged at one end of the developing frame 110 for receiving the driving force output from the imaging device, thereby driving the developing roller gear 121 to drive the developing roller 120 to rotate. Along the first direction, the end where the driving force receiving head 140 is located is defined as the driving end / left end, and the end opposite to the driving end is defined as the non-driving end / right end. The driving end cover 130 is arranged at the driving end for covering at least a portion of the developing roller gear 121, and the driving force receiving head 140 is exposed through the driving end cover 130.

[0023] like Figure 2 and Figure 3 As shown, the driving end cover 130 has a driving end cover body 131 and a through hole 132 formed on the driving end cover body 131, and the through hole 132 cooperates with the driving force receiving head 140. The driving end cover 130 is also provided with a support portion 133 extending to the left from the driving end cover body 131, and the support portion 133 is arranged around the circumference of the through hole 132; the imaging device includes a driving force output member, and the driving force output member is used to cooperate with the driving force receiving head 140 to output driving force to the driving force receiving head 140; Figure 1As shown, the support portion 133 cooperates with the driving force receiving head 140 and supports the driving force receiving head 140, so that the driving force receiving head 140 can rotate within the support portion 133, and at least a portion of the driving force receiving head 140 can be exposed from the support portion 133 to receive the driving force transmitted by the imaging device.

[0024] The developing box 100 is also provided with a chip frame 134, and the chip frame 134 is used to mount the chip 150. Figure 1 As shown, the chip 150 has an electrical contact portion 151, and the chip 150 is used to contact the contact pin in the imaging device so that the information of the developing box 100 is known to the imaging device. Specifically, the electrical contact portion 151 in the chip 150 is in electrical contact with the contact pin; along the first direction, the chip frame 134 is arranged at one end of the extension direction of the rotation axis of the developing roller 120, specifically, the chip frame is arranged on at least one of the driving end cover body 131 and the developing frame 110, and the chip frame 134 is also provided with a mounting portion 1341 for mounting the chip 150 and a connecting portion 1342 for connecting the chip frame 134 to at least one of the driving end cover body 131 and the developing frame 110, and the connecting portion 1342 is formed by extending to the left from at least one of the driving end cover body 131 and the developing frame 110.

[0025] In the utility model, the chip frame 134 is integrally formed with at least one of the driving end cover body 131 and the developing frame 110, and the chip frame 134 is fixed relative to at least one of the driving end cover body 131 and the developing frame 110, which can reduce the number of components set in the developing box 100, thereby simplifying the process and saving costs, and can also avoid the movement and displacement of the chip frame 134.

[0026] The chip frame 134 is also provided with a reinforcing portion 1343. Along the first direction, the reinforcing portion 1343 is also formed by extending leftward from at least one of the driving end cover body 131 and the developing frame 110. The reinforcing portion 1343 is simultaneously connected with the driving end cover body 131, at least one of the developing frame 110, and the connecting portion 1342. When the developing box 100 is installed in the imaging device, it can not only prevent the chip frame 134 from deforming and moving when the contact pin in the imaging device abuts against the chip 150, but also prevent the vibration brought to the developing box 100 by the driving force receiving head 140 when transmitting the rotational driving force, resulting in poor contact between the chip 150 and the contact pin in the imaging device, so that the chip frame 134 is stably fixed at the preset position, and the chip 150 can be reliably in contact with the contact pin in the imaging device; the reinforcing portion 1343 can be set as a rib, a rib, etc.

[0027] The direction intersecting the first direction and the second direction is the third direction. Figure 1In the posture shown, along the third direction, the direction of gravity is downward, and the direction opposite to the direction of gravity is upward, and the connecting portion 1342 is located at the upper end of the reinforcing portion 1343; Figure 4 As shown, the chip frame 134 also includes an avoidance portion 1344. Along the third direction, the avoidance portion 1344 is arranged at the upper end of the connecting portion 1432. Along the direction perpendicular to the first direction, the avoidance portion 1344 overlaps with at least a portion of the supporting portion 133. When installing the developing box 100, the avoidance portion 1344 is used to prevent the end cover 130 from interfering with the imaging device, thereby playing an avoidance role. Preferably, the avoidance portion 1344 is arranged as a groove structure, and the groove is recessed from top to bottom, so that the developing box 100 can be smoothly and safely installed in the imaging device.

[0028] Along the first direction, the size of the chip rack 134 is represented as the first length d1, and the size of the support portion 133 extending to the left from the end cover body 131 is represented as the second length d2. In this embodiment, the first length d1 is greater than the second length d2, and at least a portion of the chip rack 134 is located outside the support portion 133, which is equivalent to that in the first direction, the contact pin and the driving force output member in the imaging device are staggered, which can not only reduce the structural complexity of the imaging device, but also reduce the impact of the vibration generated when the driving force receiving head 140 rotates on the contact between the contact pin and the chip 150. Specifically, along the first direction, by setting the length of the avoidance portion 1344, the distance between the chip rack 134 and the end cover body 131 is extended, so that at least a portion of the chip rack 134 is located outside the support portion 133.

[0029] exist Figure 5 In the angle shown, plane M is parallel to the surface of the chip 150 on which the electrical contact portion 151 is provided, and plane M passes through the rotation axis L of the developing roller 120. Along the direction perpendicular to the rotation axis of the developing roller 120, the minimum distance D from the surface on which the electrical contact portion is provided to plane M is less than or equal to 1.1±0.5 mm. Thus, the developing box 100 with the end cover 130 can be applied to imaging devices of different models, so that the developing box 100 has higher adaptability and a wider range of applications.

[0030] The utility model provides a driving end cover 130 and a developing box 100 having the driving end cover 130, wherein the driving end cover 130 comprises a driving end cover body 131 and a chip frame 134, wherein the chip frame 134 is integrally formed with at least one of the driving end cover body 131 and the developing frame 110, and the chip frame 134 is fixed relative to at least one of the driving end cover body 131 and the developing frame 110, thereby reducing the number of parts arranged in the developing box 100, simplifying the process, and saving costs, avoiding the movement and displacement of the chip frame 134, so that the chip 150 installed in the mounting portion 1341 can stably contact with the contact pin in the imaging device; so that the developing box 100 having this arrangement can be applied to imaging devices of different models, and the adaptability of the developing box 100 is higher and the scope of application is wider.

Claims

1. An end cap, adapted to be detachably mounted on a developing cartridge in an imaging device provided with a contact pin; the developing cartridge comprises a developing frame for accommodating a developer and a developing roller rotatably arranged in the developing frame, wherein a direction in which a rotation axis of the developing roller extends is a first direction; The end cap comprises an end cap body and a chip frame for mounting a chip; It is characterized in that The chip frame is integrally formed with at least one of the end cover body and the developing frame, so that the chip frame is fixed relative to at least one of the end cover body and the developing frame.

2. The end cap according to claim 1, characterized in that: The chip frame includes a connecting portion, which is extended from at least one of the end cover body and the developing frame along a first direction and is used to connect the chip frame to at least one of the end cover body and the developing frame.

3. The end cap according to claim 1, characterized in that: Along the first direction, the chip frame includes a reinforcing portion extending from at least one of the end cover body and the developing frame body, and the reinforcing portion is used to prevent the chip frame from deforming and moving.

4. The end cap according to claim 2, characterized in that: The developing box has a driving force receiving head, which is used to receive the driving force output by the imaging device; the end cover has a through hole formed on the end cover body and a supporting portion extending from the end cover body, the supporting portion is arranged around the circumference of the through hole, and the supporting portion is used to cooperate with the driving force receiving head.

5. The end cap according to claim 4, characterized in that: The chip rack also includes an avoidance portion, and the direction intersecting the first direction and the second direction is a third direction. Along the third direction, the direction of gravity is downward, and the direction opposite to the direction of gravity is upward. The avoidance portion is located at the upper end of the connecting portion to prevent the end cover from interfering with the imaging device.

6. The end cap according to claim 5, characterized in that: Along a direction perpendicular to the first direction, the avoidance portion and the support portion at least partially overlap.

7. The end cap according to claim 4, characterized in that: Along the first direction, the dimension of the chip frame is a first length d1; the dimension of the support portion extending leftward from the end cover body is a second length d2; the first length d1 is greater than the second length d2.

8. The end cap according to claim 1, characterized in that: The chip has an electrical contact portion for electrically contacting a contact pin in an imaging device; along a direction perpendicular to the rotation axis of the developing roller, the minimum distance between a plane parallel to the surface on which the electrical contact portion is provided and passing through the rotation axis of the developing roller and the surface on which the electrical contact portion is provided is less than or equal to 1.1±0.5 mm.

9. A developing cartridge, characterized in that: The developing box comprises a developing frame, a developing roller and an end cover as claimed in any one of claims 1 to 8, wherein the developing roller is rotatably arranged in the developing frame, and the end cover is detachably connected to the developing frame.

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