Cartridge with connection structures

Abstract

A cartridge (20, 200, 400, 500, 600) connectable to an image forming apparatus IFA (10), includes a connection structure (120, 220, 420, 520, 620) connected to a rotating shaft (120, 220, 420, 520, 620) of the cartridge. The connection structure includes a first structure (120, 220, 420, 520, 620) to receive a driving force and a second structure (226, 426, 526) to locate a braking force transmission mechanism (320) of the IFA in an idle state.

Description

Atty. Dkt. No.: 86322858CARTRIDGE WITH CONNECTION STRUCTURESBACKGROUND

[0001] In general, an image forming apparatus refers to a device that may generate, print, receive, and transmit image data. For example, an image forming apparatus may refer to a printer, a scanner, a copier, a fax machine, or a multi -function peripheral implemented by integrating a plurality of functions of such devices. An image forming apparatus may output data to a printing medium through a printing process using a cartridge. Such a cartridge may include a connection structure to connect with the image forming apparatus.BRIEF DESCRIPTION OF THE DRAWINGS

[0002] FIG. 1 depicts a partially exploded perspective view of an example cartridge and a relevant portion of an example image forming apparatus.

[0003] FIG. 2A, FIG. 2B, and FIG. 2C depict schematic views of a portion of an example cartridge.

[0004] FIG. 3 A, FIG. 3B, and FIG. 3C depict schematic views of example implementation of the cartridge shown in FIG. 2A, FIG. 2B, and FIG. 2C.

[0005] FIG. 4A, FIG. 4B, and FIG. 4C depict schematic views of a portion of an example cartridge.

[0006] FIG. 5A, FIG. 5B, and FIG. 5C depict schematic views of a portion of an example cartridge.

[0007] FIG. 6A depicts a schematic view of a portion of an example cartridge.

[0008] FIG. 6B and FIG. 6C depict schematic views showing a cross section of the cartridge shown in FIG. 6A.

[0009] FIG. 7 depicts a flow chart of an example process for operating an example cartridge and an example image forming apparatus.14881 -7731 -3238.1Atty. Dkt. No.: 86322858DETAILED DESCRIPTION

[0010] An image forming apparatus (IF A) can be used to form a printing image on a printing medium (e.g., paper). The IFA can connect with and operate a cartridge to form the printing image on the printing medium based on operation of the cartridge. These image forming systems often rely on intricate mechanisms (referred to as “cartridge operating mechanism”), including driving force transmission mechanisms and braking force transmission mechanisms, delicately integrated within the IFA to connect with the cartridge and precisely control the operation of cartridges. However, the cartridge operating mechanism are prone to malfunction and breakage, resulting in operational issues and rendering the image forming system unusable. Furthermore, due to the complexity of the cartridge operating mechanism, the image forming systems frequently encounter misengagement (e.g., misalignment) issues between the IFA and cartridges, particularly concerning the braking force transmission mechanisms, leading to operational inefficiencies such as print quality issues and mechanical failures. Additionally, when issues arise regarding the braking force transmission mechanisms of the IFA, diagnosing and / or resolving these issues can be challenging and timeconsuming.

[0011] It should be appreciated, therefore, that a cartridge design, capable of operation without relying on a braking force (the “braking” force as used herein can include a force to cause “damping”) from the IFA, may be of interest. By eliminating the dependence on the braking force from the IFA, the techniques disclosed herein can ensure continued operation of the IFA and cartridge even when the IFA experiences malfunctions or broken parts related to intricate cartridge operating mechanisms (e.g., the braking force transmission mechanism). In addition, simplifying the connection between the IFA and cartridge reduces overall system complexity and manufacturing costs, making it easier to produce and maintain. This can also allow for more flexible use of cartridges, opening up possibilities for using cartridges with different designs. Thus, the techniques disclosed herein enable greater interoperability between cartridges and IFAs, accommodating future design changes and facilitating compatibility across mixed fleets of supplies and IFA configurations. According to an aspect of the present disclosure, the techniques can provide a cartridge including a connection structure connected to a rotating shaft of the cartridge. The connection structure can include a first structure to receive a driving force, and a second structure to locate a braking force transmission mechanism of the IFA in an idle state. As used herein, in the “idle state” of the24881 -7731 -3238.1Atty. Dkt. No.: 86322858 braking force transmission mechanism, the braking force transmission mechanism is substantially disengaged from a braking force driving mechanism of the IFA such that the braking force transmission mechanism cannot deliver the braking force to the connection structure of the rotating shaft.

[0012] Reference is now made to the figures. Although the figures and aspects of the disclosure can show or describe structures herein as having a particular shape, it should be understood that such shapes are merely illustrative and should not be considered limiting to the scope of the techniques described herein. For example, the techniques described herein can be implemented in any shape or geometry for any material or layer to achieve desired results. It should be understood that like reference numerals may refer to like elements throughout, repetitive descriptions of which may be omitted. It should be also noted that in the drawings, the dimensions of the features are not intended to be to true scale and may be exaggerated for the sake of allowing greater understanding.

[0013] FIG. 1 depicts a partially exploded perspective view of an example cartridge 20 and a relevant portion of an example image forming apparatus (IFA) 10. The IFA 10 can include a cartridge operating mechanism 100. The cartridge 20 can include a rotating shaft 110 and a connection structure 120. The cartridge 20 and the image forming apparatus 10 shown in FIG. 1 are simplified for illustrative purposes, and thus, the cartridge 20 and the image forming apparatus 10 can be implemented as any of various other configurations while remaining within the scope of the present disclosure. In some examples, the cartridge 20 can include more, fewer, or different components than shown in FIG. 1. In some examples, the image forming apparatus 10 can include more, fewer, or different components than shown in FIG. 1.

[0014] In some examples, the cartridge operating mechanism 100 can include a driving force transmission mechanism and a braking force transmission mechanism to operate the cartridge 20. The driving force transmission mechanism of the cartridge operating mechanism 100 is to provide a driving force to the rotating shaft 110 of the cartridge 20. The driving force transmission mechanism of the cartridge operating mechanism 100 can engage with a corresponding portion of the connection structure 120 of the cartridge 20, and can drive the rotating shaft 110 by applying the driving force. The braking force transmission mechanism of the cartridge operating mechanism 100 is to receive, from a braking force driving mechanism of the IFA 10, a driving source to operate the braking force transmission34881 -7731 -3238.1Atty. Dkt. No.: 86322858 mechanism, and then provide a braking force (e.g., damping) to the rotating shaft 110 of the cartridge 20. The braking force transmission mechanism of the cartridge operating mechanism 100 can apply the braking force to the rotating shaft 110 of the cartridge 20 when the braking force transmission mechanism receives the driving source from the braking force driving mechanism and engages with a corresponding portion of the connection structure 120 of the cartridge 20.

[0015] However, as discussed above, the cartridge operating mechanism 100 can be delicately formed within the IF A 10, while connecting with the cartridge 20 with intricate coupling mechanisms. To avoid operational issues regarding such an intricate but delicate system and operate the cartridge more efficiently, the connection structure 120 can be utilized as discussed herein, enabling the cartridge capable of operation without relying on the braking force transmission mechanism of the cartridge operating mechanism 100. With the foregoing in mind, the figures and description below illustrate various examples of the connection structure. It should be noted that the figures and description below are non-limiting examples and can be implemented as any of various other configurations while remaining within the scope of the present disclosure.

[0016] FIG. 2A, FIG. 2B, and FIG. 2C depict schematic views of a portion of an example cartridge 200. More specifically, shown in FIG. 2A is a perspective view of a connection structure 220 and a portion of a rotating shaft 210 of the cartridge 200. Shown in FIG. 2B is a schematic view of the portion of the cartridge 200 viewed from the Z axis (e.g., the rotational axis). Shown in FIG. 2C is a schematic view of the portion of the cartridge 200 viewed from the R axis (e.g., the radial axis). The cartridge 200 shown here is simplified for illustrative purposes, and thus, the cartridge 200 can be implemented as any of various other configurations while remaining within the scope of the present disclosure. In some examples, the cartridge 200 can include more, fewer, or different components than shown in the figures.

[0017] In some examples, as shown in FIG. 2A, the connection structure 220 can be connected to the rotating shaft 210 of the cartridge 200. In some examples, the connection structure 220 can be connected to the rotating shaft 210 such that the connection structure 220 and the rotating shaft 210 forms a unitary body. In some examples, the connection structure 220 can be detachably connected to the rotating shaft 210.44881 -7731 -3238.1Atty. Dkt. No.: 86322858

[0018] In some examples, the connection structure 220 can include a first structure 222 to receive a driving force to drive the rotating shaft 210 in a first direction (e.g., clockwise). The first structure 222 can include a first surface 222 S to receive the driving force that allows the rotating shaft 210 to rotate in the first direction (e.g., a driving direction). The first surface 222S can extend along the Z axis (e.g., the rotational axis of the rotating shaft 210) and the R axis (e.g., the radial axis of the rotating shaft 210), thereby forming a surface to abut against the driving force transmission mechanism of the IFA. In some examples, the first surface 222S can be angled with respect to the Z axis and / or the R axis.

[0019] In some examples, the connection structure 220 can include an activating structure 224. The activating structure 224 can activate the braking force transmission mechanism of the IFA, thereby allowing the braking force transmission mechanism of the IFA to apply a braking force (e.g., a force opposite in direction to the driving force) to the rotating shaft 210 when the braking force transmission mechanism engages with a corresponding portion of the connection structure 220. In some examples, the activating structure 224 can activate the braking force transmission mechanism of the IFA by separating the braking force transmission mechanism from the driving force transmission mechanism of the IFA. For example, the activating structure 224 can include a separating structure or surface to separate the braking force transmission mechanism from the driving force transmission mechanism of the IFA. In some examples, the connection structure 220 can engage with the IFA through insertion of the activating structure 224 into a space formed by separating the braking force transmission mechanism and the driving force transmission mechanism from each other.

[0020] In some examples, the connection structure 220 can include a second structure 226. The second structure 226 can prevent the rotating shaft 210 from receiving the braking force from the braking force transmission mechanism of the IFA by locating the braking force transmission mechanism of the IFA in the idle state. In the idle state, the braking force transmission mechanism is disengaged from the braking force driving mechanism of the IFA such that the braking force transmission mechanism cannot deliver the braking force to the connection structure 220 of the rotating shaft 210. When the cartridge (e.g., the cartridge 200) is connected to the IFA, the braking force transmission mechanism is connected to the connection structure (e.g., the connection structure 220) of the cartridge at an extended54881 -7731 -3238.1Atty. Dkt. No.: 86322858 position to deliver the braking force. At this extended position, the braking force transmission mechanism extends axially to deliver the braking force to the connection structure of the cartridge. Simultaneously, at the extended position, the braking force transmission mechanism connects with a braking force driving shaft (which provides a driving source for the braking force) of the braking force driving mechanism, thereby transmitting the driving source from the braking force driving shaft to the connection structure of the cartridge. However, the braking force transmission mechanism may need to be idle such that the braking force transmission mechanism can rotate independently from the braking force driving shaft to find an appropriate coupling position (e.g., an angular position) for connection with the connection structure of the cartridge. The braking force transmission mechanism can be idle at a retracted position (e.g., retracted along an axial direction from the extended position) as disengaged from the braking force driving shaft. At this retracted position, the braking force transmission mechanism is located in the idle state, and the braking force is not transferred from the braking force driving shaft to the connection structure. As discussed herein, the connection structure 220 (e.g., the second structure 226 thereof) can include various features to locate the braking force transmission mechanism of the IFA in the idle state (e.g., by locating the same at the retracted position).

[0021] In some examples, the second structure 226 can abut against the braking force transmission mechanism at the retracted position in which the braking force transmission mechanism is separate from the braking force driving mechanism. In some examples, even when the braking force transmission mechanism of the IFA has been activated (e.g., separated from the driving force transmission mechanism) by the activating structure 224, the braking force transmission mechanism of the IFA in the idle state cannot provide the braking force to the rotating shaft 210 as the braking force transmission mechanism does not receive, from the braking force driving mechanism, the driving source for providing the braking force.

[0022] In some examples, the second structure 226 can include a plurality of surfaces. In some examples, the second structure 226 can include a second surface (e.g., the second surfaces 226S1, 226S2, etc.). The second surface can extend along the R axis (e.g., the radial axis) and / or the Z axis. The second surface can locate the braking force transmission mechanism of the IFA in the idle state. In some examples, the second surface can be formed64881 -7731 -3238.1Atty. Dkt. No.: 86322858 such that the normal vector of the second surface includes a component parallel to the Z axis (e.g., the rotational axis of the rotating shaft 210). For example, the second surface can include a surface to abut against the braking force transmission mechanism of the IFA in a more advanced position (from a bottom surface of the connection structure 220) than the first surface 222S. This can disengage the braking force transmission mechanism from the braking force driving mechanism (e.g., as shown in FIG. 3A to FIG. 3C), thereby preventing the braking force transmission mechanism from delivering the braking force to the connection structure 220, even when the braking force transmission mechanism is connected with the connection structure 220. In some examples, the second surface can be disposed at an angle with respect to the first surface 222S. For example, as shown in FIG. 2C, the second surface 226S1 can be disposed at an angle 224A while formed continuously from the activating structure 224. In some examples, as shown in FIG. 2A, the second structure 226 includes a plurality of second surfaces, including a first slanted surface 226S1 and a second slanted surface 226S2 connected to and facing the first slanted surface 226S1. A space between the first slanted surface 226S1 and the second slanted surface 226S2 can abut against the braking force transmission mechanism in the idle state of the braking force transmission mechanism (e.g., as shown in FIG. 3C), thereby disengaging the braking force transmission mechanism from the braking force driving mechanism. Depicted herein is a non-limiting example of the second surface, which can include various shapes without departing from the spirit and scope. In some examples, the second surface (e.g., the second surfaces 226S1, 226S2, etc.) can include, but not limited to, a stair-like shape, a spiral shape, a parabolic shape, a polygonal shape, a tapered shape, a conical shape, etc.

[0023] The second surface (e.g., the second surfaces 226S1, 226S2, etc.) can prevent the activated braking force transmission mechanism (e.g., separated from the driving force transmission mechanism by the activating structure 224) from engaging with the braking force driving mechanism of the IFA, while the first surface 222S can receive the driving force from the activated driving force transmission mechanism (e.g., separated from the braking force transmission mechanism by the activating structure 224). This allows the rotating shaft 210 to be driven based on the driving force, without receiving the braking force from the IFA.

[0024] In some examples, the first structure 222 includes the first surface 222S extending a74881 -7731 -3238.1Atty. Dkt. No.: 86322858 first distance dl along the Z axis (e.g., the rotational axis of the rotating shaft 210) from an outermost point (e.g., the line XX') of the connection structure 220, such that the driving force transmission mechanism of the IFA can travel the first distance dl along the first surface 222S (e.g., as shown in FIG. 3C). Meanwhile, the second structure 226 includes the second surface to stop the braking force transmission mechanism at the retracted position above the bottom surface 220B (e.g., at a distance d3 from the outermost point of the connection structure 220, as shown in FIG. 3C), locating the braking force transmission mechanism in the idle state (and thus preventing the braking force transmission mechanism from engaging with the braking force driving mechanism, as shown in FIG. 3C). In some examples, the first distance dl can be equal to or larger than the second distance d2.

[0025] FIG. 3 A, FIG. 3B, and FIG. 3C depict schematic views of example implementation of the cartridge 200. More specifically, shown in the figures is the implementation to connect the cartridge 200 with an IFA (e.g., the IFA 10) that includes a cartridge operating mechanism 300. The implementation shown here is simplified for illustrative purposes, and thus, the cartridge 200 can be implemented as any of various other configurations while remaining within the scope of the present disclosure. In some examples, the implementation can include more, fewer, or different components than shown in the figures.

[0026] Referring to FIG. 3 A, the cartridge 200 and the cartridge operating mechanism 300 of the IFA are provided, prior to connecting the cartridge 200 and the IFA. The cartridge operating mechanism 300 can include a driving force transmission mechanism 310, a driving source for the driving force transmission mechanism (referred to as a “driving force driving mechanism” 311), a braking force transmission mechanism 320, and a driving source for the braking force transmission mechanism (referred to as a “braking force driving mechanism” 321). The cartridge 200 can move along the Z axis to connect with the cartridge operating mechanism 300 of the IFA. As shown in FIG. 3A, the driving force transmission mechanism 310 is engaged with the driving force driving mechanism 311, and the braking force transmission mechanism 320 is engaged with the braking force driving mechanism 321. In some examples, the driving force transmission mechanism 310 is engaged with the braking force transmission mechanism 320 (e.g., in a deactivated state).

[0027] Referring to FIG. 3B, when the cartridge operating mechanism 300 of the IFA passes84881 -7731 -3238.1Atty. Dkt. No.: 86322858 the line XX' (or the activating structure 224), the activating structure 224 can activate the braking force transmission mechanism 320 and the driving force transmission mechanism 310. In some examples, as shown, the activating structure 224 can separate the braking force transmission mechanism 320 from the driving force transmission mechanism 310. While the cartridge operating mechanism 300 of the IFA moves along the Z axis, the driving force transmission mechanism 310 can move along the first structure 222 in the Z axis, and the braking force transmission mechanism 320 can move along a surface of the activating structure 224.

[0028] Referring to FIG. 3C, the braking force transmission mechanism 320 is activated (e.g., radially separated from the driving force transmission mechanism 310) by the activating structure 224. However, as shown, the second structure 226 can prevent the braking force transmission mechanism 320 from engaging with the braking force driving mechanism 321, thereby locating the braking force transmission mechanism 320 in the idle state.

[0029] As discussed above, the braking force transmission mechanism 320 can be idle at the retracted position. In some examples, as shown in FIG. 3C, the retracted position can be at a distance d3 from the outermost point (e.g., the line XX') of the connection structure 220. The braking force transmission mechanism 320 can be held in the retracted position by the second structure 226, which can prevent the braking force transmission mechanism 320 from moving toward the rotating shaft 210 along the Z axis. In contrast, the driving force transmission mechanism 310 can fully engage with the driving force driving mechanism 311, travelling the distance dl toward the rotating shaft 210 along the Z axis (or enough to engage with the first structure 222 and / or extend to the extended position (e.g., the bottom surface 220B of the connections structure 220)).

[0030] The second structure 226, as disclosed herein, can include various structures / features to prevent the braking force transmission mechanism 320 from engaging with the braking force driving mechanism 321.

[0031] In some examples, the first structure 222 includes the first surface 222S extending the first distance dl, along the rotational axis of the rotating shaft 210, from a bottom surface 210B of the connection structure 220, and the driving force transmission mechanism 310 of94881 -7731 -3238.1Atty. Dkt. No.: 86322858 the IFA can travel the first distance dl along the first surface 222S. The second structure 226 includes the second surface (e.g., the second surfaces 226S1, 226S2, etc.), to stop the braking force transmission mechanism 320 at the retracted position above the bottom surface 220B (e.g., the position at d3 as shown in FIG. 3C). Although depicted as being smaller than the distance dl, the distance d2 can be equal to the distance dl, in some examples. As the second surface (e.g., the second surfaces 226S1, 226S2, etc.) can form a concave surface, the second surface can stop the braking force transmission mechanism 320 at the retracted position above the bottom surface 220B (e.g., the distance d3).

[0032] In some examples, the second structure 226 includes a first slanted surface (e.g., the second surface 226S1) and a second slanted surface (e.g., the second surface 226S2) connected to and facing the first slanted surface (e.g., the second surface 226S1). As shown in FIG. 3C, a space 227 between the first slanted surface and the second slanted surface can abut against the braking force transmission mechanism 320 in the idle state of the braking force transmission mechanism 320 (such that the braking force transmission mechanism 320 is disengaged from the braking force driving mechanism 321).

[0033] In some examples, the first structure 222 of the connection structure 220 extends, along the rotational axis, a first distance (e.g., the distance dl) from an outermost point (e.g., the line XX'), and the second structure 226 extends, along the rotational axis, a second distance (e.g., the distance d2) from the outermost point. Here, the first distance is equal to or longer than the second distance. The braking force transmission mechanism 320 can be abutted at a third distance (e.g., the distance d3) from the outermost point along the rotational axis, and the first distance is longer than the third distance. Due to the difference in distance that the braking force transmission mechanism 320 and the driving force transmission mechanism 310 can travel and / or the space 227 (e.g., formed by the concave shape of the second surfaces 226S1, 226S2, etc.), the braking force transmission mechanism 320 can be prevented from engaging with the braking force driving mechanism 321, while the driving force transmission mechanism 310 can engage with the driving force driving mechanism 311. In some examples, the space 227 and / or the concave portion can maintain the braking force transmission mechanism 320 at the retracted position (e.g., the distance d3), where the braking force transmission mechanism 320 is separate from the braking force driving104881 -7731 -3238.1Atty. Dkt. No.: 86322858 mechanism 321.

[0034] The connection structure, as disclosed herein, can include various structures / features to locate the braking force transmission mechanism in the idle state. The figures and description below illustrate examples of the connection structure. It should be noted that the figures and description below are non-limiting examples and can be implemented as any of various other configurations while remaining within the scope of the present disclosure.

[0035] FIG. 4A, FIG. 4B, and FIG. 4C depict schematic views of a portion of an example cartridge. More specifically, shown in FIG. 4A is a perspective view of a connection structure 420 and a portion of a rotating shaft 410 of the cartridge 400. Shown in FIG. 4B is a schematic view of the portion of the cartridge 400 viewed from the Z axis (e.g., the rotational axis). Shown in FIG. 4C is a schematic view of the portion of the cartridge 400 viewed from the R axis (e.g., the radial axis). The cartridge 400 shown here is simplified for illustrative purposes, and thus, the cartridge 400 can be implemented as any of various other configurations while remaining within the scope of the present disclosure. In some examples, the cartridge 400 can include more, fewer, or different components than shown in the figures.

[0036] In some examples, the cartridge 400 can include the connection structure 420. The connection structure 420 can include a first structure 422, an activating structure 424, a second structure 426, etc. The first structure 422 includes a first surface 422S. The second structure 426 includes second surfaces 426S1, 426S2, 426SF, etc.

[0037] In some examples, the first structure 422 and the activating structure 424 can be substantially similar to the first structure 222 and the activating structure 224, respectively. For example, the first structure 422 can receive the driving force to drive the rotating shaft 410. The activating structure 424 can activate the braking force transmission mechanism of the IF A, thereby allowing the braking force transmission mechanism of the IFA to apply a braking force (e.g., a force opposite in direction to the driving force) to the rotating shaft 410 when the braking force transmission mechanism engages with a corresponding portion of the connection structure 420.

[0038] As discussed above, the second structure 426 can be formed in various shapes. In some examples, the second structure 426 can include, but not limited to, a stair-like shape, a spiral114881 -7731 -3238.1Atty. Dkt. No.: 86322858 shape, a parabolic shape, a polygonal shape, a tapered shape, a conical shape, etc. In some examples, as shown, the second structure 426 can include the second surface 426S1, which is disposed at an angle 426A1 with respect to the activating structure 424. The angle 426A1 can be any angle (e.g., 0 degree for the second structure 226, etc.). In some examples, the second structure 426 can include a plurality of second surfaces (e.g., the second surfaces 426S1, 426S2, etc.), each disposed at different angles (e.g., the angles 426A1, 426A2, etc.) with respect to the activating structure 424. In some examples, the second structure 426 can be radially symmetric, such that a distance d2 is uniform through the second surface 426S1 along the radial direction. In some examples, the second structure 426 can be radially asymmetric, such that the distance d2 changes through the second surface 426S1 along the radial direction.

[0039] In some examples, the connection structure 420 can be the connection structure 420 with additionally including the second surface 426SF (referred to as the “flat surface” 426SF, hereinafter). The second structure 426 includes a first slanted surface (e.g., the second surface 426S1), a second slanted surface (e.g., the second surface 426S2) facing the first slanted surface, and the flat surface 426SF connecting the first slanted surface and the second slanted surface. The flat surface 426SF can abut against the braking force transmission mechanism (e.g., the braking force transmission mechanism 320) in the idle state by not allowing the braking force transmission mechanism to engage with the braking force driving mechanism (e.g., similar to FIG. 3C).

[0040] As discussed herein, the cartridge (e.g., the cartridges 200, 400) can include the second structure (e.g., the second structures 226, 426) to locate the activated braking force transmission mechanism of the IFA in the idle state, such that the braking force transmission mechanism is prevented from engaging with the braking force driving mechanism. In some examples, as discussed below, the connection structure can keep the braking force transmission mechanism of the IFA in an inactive state (e.g., without being activated by the activating structure), while disengaging from the braking force driving mechanism.

[0041] FIG. 5A, FIG. 5B, and FIG. 5C depict schematic views of a portion of an example cartridge. More specifically, shown in FIG. 5 A is a perspective view of a connection structure 520 and a portion of a rotating shaft 510 of the cartridge 500. Shown in FIG. 5B is a schematic124881 -7731 -3238.1Atty. Dkt. No.: 86322858 view of the portion of the cartridge 500 viewed from the Z axis (e.g., the rotational axis). Shown in FIG. 5C is a schematic view of the portion of the cartridge 500 viewed from the R axis (e.g., the radial axis). The cartridge 500 shown here is simplified for illustrative purposes, and thus, the cartridge 500 can be implemented as any of various other configurations while remaining within the scope of the present disclosure. In some examples, the cartridge 500 can include more, fewer, or different components than shown in the figures.

[0042] In some examples, the cartridge 500 can include the connection structure 520. The connection structure 520 can include a first structure 522, a second structure 526, etc. In some examples, the first structure 522 can be substantially similar to the first structures 222, 422. For example, the first structure 522 can include a first surface 522S to receive the driving force to drive the rotating shaft 510. In some examples, the second structure 526 can be substantially similar to the second structures 226, 426. For example, the second structure 526 can include a second surface 526S to locate the braking force transmission mechanism of the IFA in the idle state, in which the braking force transmission mechanism of the IFA can be prevented from engaging with the braking force driving mechanism of the IFA. In some examples, as shown, the connection structure 520 can omit an activating structure (e.g., the activating structures 224, 424). As shown in FIG. 5C, the second structure 526 can be formed such that a second surface 526S is aligned with the line XX', allowing for a simpler design such as compared with the connection structures 220, 420, etc.

[0043] Without the activating structure in the cartridge 500, the braking force transmission mechanism of the IFA can remain inactive, thereby not providing the braking force to the rotating shaft 510. In some examples, the braking force transmission mechanism of the IFA is not separated from the driving force transmission mechanism of the IFA. In this state, the connection structure 520 can receive the driving force, through the first structure 522, from the driving force transmission mechanism, while not receiving the braking force from the braking force transmission mechanism (as the braking force transmission mechanism is not activated and / or as the braking force transmission mechanism is disengaged from the braking force driving mechanism as discussed below).

[0044] In some examples, even if the braking force transmission mechanism of the IFA is activated without the activating structure (e.g., during operational issues, mechanical failures,134881 -7731 -3238.1Atty. Dkt. No.: 86322858 etc.), the connection structure 520 can locate the braking force transmission mechanism of the IFA in the idle state, thereby preventing the connection structure 520 from receiving the brake force from the IFA. In some examples, this can be achieved by the second structure 526, which can abut against the braking force transmission mechanism in the idle state. As shown, the first surface 522S is shown to extend along the rotational axis of the rotating shaft 510, while a flat surface portion (e.g., flat along the line XX') of the second surface 526S is connected to the first surface 522S. The flat surface portion can abut against the braking force transmission mechanism in the idle state, such that the braking force transmission mechanism is not engaged with the braking force driving mechanism (e.g., similar to FIG. 3C).

[0045] As discussed above, the techniques disclosed herein can provide a cartridge design, to operate without relying on the braking force from the IFA. By locating the braking force transmission mechanism in the idle state, the dependence on the braking force from the IFA can be eliminated, thereby avoiding issues related to intricate cartridge operating mechanisms and reducing overall system complexity and manufacturing costs. While not relying on the braking force from the IFA, the cartridges disclosed herein can include a force application mechanism to provide a braking force (e.g., damping). With the foregoing in mind, the figures and description below illustrate examples of the force application mechanism. It should be noted that the figures and description below are non-limiting examples and can be implemented as any of various other configurations while remaining within the scope of the present disclosure.

[0046] FIG. 6A depicts a schematic view of a portion of an example cartridge 600. FIG. 6B and FIG. 6C depict schematic views showing a cross section of the cartridge 600 shown in FIG. 6A. The cartridge 600, as shown, includes a damping mechanism 650 to provide a braking force. In some examples, the cartridge 600 may be substantially similar to or incorporate features of the cartridges 200, 400, 500, etc. For example, the cartridge 600 can include a rotating shaft 610, a connection structure 620, etc. The implementation shown here is simplified for illustrative purposes, and thus, the cartridge 600 can be implemented as any of various other configurations while remaining within the scope of the present disclosure. In some examples, the implementation can include more, fewer, or different components than shown in the figures.144881 -7731 -3238.1Atty. Dkt. No.: 86322858

[0047] The damping mechanism 650 can include a container 656 to contain lubricant 660, a plunger 654, and a lubricant path 652. In some examples, the damping mechanism 650 can be disposed in the cartridge 600. The damping mechanism 650 can be accommodated in an end portion of the rotating shaft 610, to which the connection structure 620 is connected. In some examples, the damping mechanism 650 can be accommodated in the rotating shaft 610 of the cartridge 600 and adjacent to a connecting portion in which the connection structure 620 of the cartridge 600 is connected with the IFA.

[0048] The plunger 654 can be located in the container 656. The lubricant path 652 can fluidically connect the container 656 and the connecting portion (in which the connection structure 620 of the cartridge 600 is connected with the IFA) through the connection structure 620 and the plunger 654, such that the lubricant 660 can be injected from the container 656, through the lubricant path 652, to the connecting portion. For example, as shown, the lubricant path 652 can be connected to the plunger 654 while passing through the connection structure 620. In some examples, the plunger 654 can be movable along the Z axis (e.g., the rotational axis of the rotating shaft 610), such that the plunger 654 can move toward the rotating shaft 610 to compress the lubricant 660 in the container 656. As the plunger 654 moves along the Z axis, compressing the lubricant 660, a portion of the lubricant 660 contained in the container 656 can be released through the lubricant path 652 (e.g., as shown in FIG. 6C). In some examples, the plunger 654 and the lubricant path 652 can be formed such that the lubricant 660 is not released unless compressed. In some examples, the lubricant 660 can be chosen based on the viscosity of the lubricant 660. For example, the lubricant 660 can be chosen based on the viscosity that allows the lubricant 660 to be released through the lubricant path 652 when compressed. The lubricant 660 injected into the connecting portion can generate damping for the rotating shaft 610 in response to rotating the rotating shaft 610. In some examples, the plunger 654 can move toward the rotating shaft 610 to compress the lubricant 660, in response to connecting the connection structure 620 of the cartridge 600 with the IFA.

[0049] The damping mechanism 650 can provide damping in response to a rotation of the rotating shaft 610. As shown in FIG. 6C and described above, the lubricant 660 can be released through the lubricant path 652, in response to the plunger 654 compressing the lubricant 660 contained in the container 656. In some examples, the released lubricant 660154881 -7731 -3238.1Atty. Dkt. No.: 86322858 can be injected into a connection portion in which the IF A and the cartridge are engaged with each other, a powertrain of the IFA (e.g., a gear train that drives the cartridge operating mechanism, etc.), etc. The injected lubricant 660 can provide damping to the rotating shaft 610 of the cartridge 600. For example, the lubricant 660 injected into the powertrain can provide damping to the gear train (e.g., by providing resistance to mechanical parts). In some examples, the lubricant 660 may be, but not limited to, oil, grease, etc. The lubricant 660 can be chosen based on the viscosity of the lubricant 660. For example, the lubricant 660 can be chosen based on the viscosity that provides a desired level of damping. As shown in the figures and discussed herein, the braking force (e.g., damping) can be provided without relying on the intricate cartridge operating mechanisms of the IFA. This can thus reduce the operational inefficiencies, such as print quality issues and mechanical failures, with a simpler design and lower costs.

[0050] FIG. 7 depicts a flow chart of an example process 70 for operating an example cartridge and an example image forming apparatus. The process 70 can be performed with, by, or using the components discussed with respect to the figures and description above. In some examples, the process 70 can be performed using the cartridge 600, and thus, some of the references used above may be reused in the following discussion of the process 70. It is noted that the process 70 is merely a non-limiting example. Accordingly, it is understood that additional operations may be provided before, during, and after the process 70 of FIG. 7, and that some other operations may be briefly described herein.

[0051] In a brief overview, the process 70 can start with operation 710 of guiding installation of a cartridge (e.g., the cartridge 600). The process 70 can continue to operation 720 of engaging a connection structure (e.g., the connection structure 620) of the cartridge with an IFA. The process 70 can continue to operation 730 of controlling a damping mechanism (e.g., the damping mechanism 650) of the cartridge to release lubricant (e.g., the lubricant 660). The process 70 can end with operation 740 of injecting the released lubricant into a cartridge- IFA connection and / or IFA powertrain.

[0052] At operation 710, installation of the cartridge into the IFA can be guided. In some examples, as shown in FIG. 1, the cartridge can be installed in the IFA (e.g., the IFA 10) through the connection structure of the cartridge and cartridge operating mechanism (e.g., the164881 -7731 -3238.1Atty. Dkt. No.: 86322858 cartridge operating mechanism 100, etc.). At operation 720, in response to installing of the cartridge, the connection structure of the cartridge can be engaged with the IF A. In some examples, the connection structure of the cartridge can be engaged with the cartridge operating mechanism. For example, the first structure (e.g., the first structure 222) of the cartridge can engage with the driving force transmission mechanism (e.g., the driving force transmission mechanism 310) of the IF A to receive the driving force to drive the rotating shaft of the cartridge.

[0053] At operation 730, the damping mechanism of the cartridge can be controlled to release the lubricant. In some examples, the damping mechanism of the cartridge can be automatically controlled to move a plunger (e.g., the plunger 654) to compress and release the lubricant (e.g., through a lubricant path 652). For example, in response to the engagement of the cartridge with the IF A, the damping mechanism of the cartridge can be mechanically triggered to move the plunger. In some examples, the IFA can include a protrusion portion to press the plunger in response to the engagement of the cartridge with the IFA. For example, the IFA can include a sensor to detect the engagement of the cartridge with the IFA, and a control mechanism to move the plunger in response to a detection of the engagement. In some examples, the damping mechanism can be controlled to release the lubricant at predetermined intervals to maintain constant and / or consistent damping.

[0054] At operation 740, the released lubricant can be injected into a connection portion in which the IFA and the cartridge are engaged with each other and / or a powertrain of the IFA (e.g., a gear train that drives the cartridge operating mechanism, etc.). The injected lubricant can provide damping to the rotation shaft of the cartridge.

[0055] In an aspect of the present disclosure, a cartridge connectable to an image forming apparatus (IFA) is disclosed. The cartridge includes a connection structure connected to a rotating shaft of the cartridge. The connection structure includes a first structure to receive a driving force, and a second structure to locate a braking force transmission mechanism of the IFA in an idle state. In some examples, the cartridge includes an activating structure to separate the braking force transmission mechanism of the IFA from a driving force transmission mechanism of the IFA.174881 -7731 -3238.1Atty. Dkt. No.: 86322858

[0056] In some examples, the braking force transmission mechanism is separate from a braking force driving mechanism of the IFA in the idle state of the braking force transmission mechanism. In some examples, the first structure includes a first surface extending a first distance, along a rotational axis of the rotating shaft, from a bottom surface of the connection structure, and a driving force transmission mechanism of the IFA is to travel the first distance along the first surface, and the second structure includes a second surface, to stop the braking force transmission mechanism at a retracted position above the bottom surface, in the idle state of the braking force transmission mechanism.

[0057] In some examples, the second structure includes a first slanted surface and a second slanted surface connected to and facing the first slanted surface, and a space between the first slanted surface and the second slanted surface is to abut against the braking force transmission mechanism in the idle state of the braking force transmission mechanism. In some examples, the second structure includes a first slanted surface, a second slanted surface facing the first slanted surface, and a flat surface connecting the first slanted surface and the second slanted surface, and the flat surface is to abut against the braking force transmission mechanism in the idle state of the braking force transmission mechanism. In some examples, the first structure includes a first surface extending along a rotational axis of the rotating shaft, wherein the second structure includes a flat surface connected to the first surface, and wherein the flat surface is to abut against the braking force transmission mechanism in the idle state of the braking force transmission mechanism.

[0058] In yet another aspect of the present disclosure, a cartridge connectable to an image forming apparatus (IFA) is disclosed. The cartridge includes a connection structure connected to a rotating shaft of the cartridge. The connection structure includes a first structure to receive a first force to drive the rotating shaft in a first direction, and a second structure to prevent the rotating shaft from receiving a second force, the second force opposite in direction to the first force.

[0059] In some examples, the cartridge includes a damping mechanism accommodated in an end portion of the rotating shaft, to which the connection structure is connected. The damping mechanism includes a container to contain lubricant, and a plunger located in the container and movable along a rotational axis of the rotating shaft, the plunger to compress the lubricant184881 -7731 -3238.1Atty. Dkt. No.: 86322858 in the container. In response to compressing the lubricant in the container, the lubricant is injected into a connecting portion in which the connection structure of the cartridge is connected with the IF A, and the lubricant injected into the connecting portion is to generate damping for the rotating shaft in response to the rotating shaft rotating in a first direction. In some examples, the plunger is to move toward the rotating shaft to compress the lubricant, in response to connecting the connection structure of the cartridge with the IFA. In some examples, the damping mechanism includes a lubricant path connected to the plunger and passing through the connection structure, and the lubricant path is to fluidically connect the container with the connecting portion such that the lubricant is injected from the container, through the lubricant path, to the connecting portion.

[0060] In yet another aspect of the present disclosure, a cartridge connectable to an image forming apparatus (IFA) is disclosed. The cartridge includes a connection structure connected to a rotating shaft of the cartridge. The connection structure includes a first structure to receive a driving force, an activating structure to separate a braking force transmission mechanism of the IFA from a driving force transmission mechanism, and a second structure to locate the braking force transmission mechanism of the IFA in an idle state by abutting against the braking force transmission mechanism at a retracted position in which the braking force transmission mechanism is separate from a braking force driving mechanism that is to provide a braking force.

[0061] In some examples, the connection structure includes an outermost point along a rotational axis, the first structure extends a first distance from the outermost point along the rotational axis, and the second structure extends a second distance from the outermost point along the rotational axis. The first distance is equal to or longer than the second distance.

[0062] In some examples, the connection structure includes an outermost point along the rotational axis, the first structure extends a first distance from the outermost point along the rotational axis, and the braking force transmission mechanism is to be abutted at a third distance from the outermost point along the rotational axis. The first distance is longer than the third distance.

[0063] In some examples, the second structure includes a concave portion to maintain the194881 -7731 -3238.1Atty. Dkt. No.: 86322858 braking force transmission mechanism at a retracted position where the braking force transmission mechanism is separate from the driving force transmission mechanism. In some examples, the cartridge includes a damping mechanism accommodated in the rotating shaft of the cartridge and adjacent to a connecting portion in which the connection structure of the cartridge is connected with the IF A. The damping mechanism includes a container to contain lubricant, a plunger located in the container, and a lubricant path to fluidically connect the container and the connecting portion through the connection structure and the plunger. The plunger is to move to compress the lubricant in the container, and the lubricant compressed by the plunger is to be injected into the connecting portion, and the lubricant injected into the connecting portion is to generate damping for the rotating shaft in response to rotating the rotating shaft.

[0064] It should be understood that examples described herein should be considered in a descriptive sense and not for purposes of limitation. Descriptions of features or aspects within each example should be considered as available for other similar features or aspects in other examples. While examples have been described with reference to the figures, it should be understood that various changes in form and details may be made therein without departing from the spirit and scope as defined by the following claims.

[0065] The disclosure has been described above with reference to the various examples. However, it is to be understood by those of ordinary skill in the art that various modifications may be made in form and detail without departing from the scope of the disclosure as defined by the appended claims and their equivalents.

[0066] Conditional language used herein, such as, among others, "can," "could," "might," "may," “e.g.,” and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain examples include, while other examples do not include, certain features, elements. Thus, such conditional language is not generally intended to imply that features, elements are in any way required for examples or those examples include logic for deciding, with or without other input or prompting, whether these features, elements are included or are to be performed in any particular example. The terms “comprising,” “including,” “having,” and the like are synonymous and are used inclusively, in an open-ended fashion, and do not exclude204881 -7731 -3238.1Atty. Dkt. No.: 86322858 additional elements, features, acts, operations, and so forth. Also, the term “or” is used in its inclusive sense (and not in its exclusive sense) so that when used, for example, to connect a list of elements, the term “or” means one, some, or all of the elements in the list.

[0067] While the above detailed description has shown, described, and pointed out novel features as applied to various examples, it can be understood that various omissions, substitutions, and changes in the form and details of the devices illustrated can be made without departing from the spirit of the disclosure. As can be recognized, certain examples described herein can be embodied within a form that does not provide all of the features and benefits set forth herein, as some features can be used or practiced separately from others.

[0068] The herein described subject matter sometimes illustrates different components contained within, or connected with, different other components. It is to be understood that such depicted architectures are merely examples, and that in fact many other architectures can be implemented which achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively "associated" such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as "associated with" each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being "operably connected," or "operably coupled," to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being "operably couplable," to each other to achieve the desired functionality. Specific examples of operably couplable include but are not limited to physically mateable and / or physically interacting components and / or wirelessly interactable and / or wirelessly interacting components and / or logically interacting and / or logically interactable components.

[0069] With respect to the use of substantially any plural and / or singular terms herein, those having skill in the art can translate from the plural to the singular and / or from the singular to the plural as is appropriate to the context and / or application. The various singular / plural permutations may be expressly set forth herein for sake of clarity.

[0070] It should be understood by those within the art that, in general, terms used herein, and214881 -7731 -3238.1Atty. Dkt. No.: 86322858 especially in the appended claims (e.g., bodies of the appended claims) are generally intended as "open" terms (e.g., the term "including" should be interpreted as "including but not limited to," the term "having" should be interpreted as "having at least," the term "includes" should be interpreted as "includes but is not limited to," etc.). It should be understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent should be explicitly recited in the claim, and in the absence of such recitation no such intent is present. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art should recognize that such recitation should typically be interpreted to mean at least the recited number. It should be understood by those within the art that virtually any disjunctive word and / or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase "A or B" should be understood to include the possibilities of "A" or "B" or "A and B." Furthermore, unless otherwise noted, the use of the words “approximate,” “about,” “around,” “substantially,” etc., mean plus or minus ten percent.

[0071] The foregoing description of illustrative examples has been presented for purposes of illustration and of description. It is not intended to be exhaustive or limiting with respect to the precise form disclosed, and modifications and variations are possible in light of the above teachings or may be acquired from practice of the disclosed examples.224881 -7731 -3238.1

Claims

Atty. Dkt. No.: 86322858WHAT IS CLAIMED IS:

1. A cartridge connectable to an image forming apparatus (IF A), the cartridge comprising: a connection structure connected to a rotating shaft of the cartridge, the connection structure comprising: a first structure to receive a driving force; and a second structure to locate a braking force transmission mechanism of the IFA in an idle state.

2. The cartridge of claim 1, wherein the braking force transmission mechanism is separate from a braking force driving mechanism of the IFA in the idle state of the braking force transmission mechanism.

3. The cartridge of claim 1, wherein the first structure includes a first surface extending a first distance, along a rotational axis of the rotating shaft, from a bottom surface of the connection structure, and a driving force transmission mechanism of the IFA is to travel the first distance along the first surface, and wherein the second structure includes a second surface, to stop the braking force transmission mechanism at a retracted position above the bottom surface, in the idle state of the braking force transmission mechanism.

4. The cartridge of claim 1, wherein the second structure includes a first slanted surface and a second slanted surface connected to and facing the first slanted surface, and wherein a space between the first slanted surface and the second slanted surface is to abut against the braking force transmission mechanism in the idle state of the braking force transmission mechanism.

5. The cartridge of claim 1, wherein the second structure includes a first slanted surface, a second slanted234881 -7731 -3238.1Atty. Dkt. No.: 86322858 surface facing the first slanted surface, and a flat surface connecting the first slanted surface and the second slanted surface, and wherein the flat surface is to abut against the braking force transmission mechanism in the idle state of the braking force transmission mechanism.

6. The cartridge of claim 1, wherein the first structure includes a first surface extending along a rotational axis of the rotating shaft, wherein the second structure includes a flat surface connected to the first surface, and wherein the flat surface is to abut against the braking force transmission mechanism in the idle state of the braking force transmission mechanism.

7. A cartridge connectable to an image forming apparatus (IF A), the cartridge comprising: a connection structure connected to a rotating shaft of the cartridge, the connection structure comprising: a first structure to receive a first force to drive the rotating shaft in a first direction; and a second structure to prevent the rotating shaft from receiving a second force, the second force opposite in direction to the first force.

8. The cartridge of claim 7, comprising a damping mechanism accommodated in an end portion of the rotating shaft, to which the connection structure is connected, wherein the damping mechanism includes: a container to contain lubricant; and a plunger located in the container and movable along a rotational axis of the rotating shaft, the plunger to compress the lubricant in the container, wherein, in response to compressing the lubricant in the container, the lubricant is injected into a connecting portion in which the connection structure of the cartridge is connected with the IF A, and244881 -7731 -3238.1Atty. Dkt. No.: 86322858 wherein the lubricant injected into the connecting portion is to generate damping for the rotating shaft in response to the rotating shaft rotating in a first direction.

9. The cartridge of claim 8, wherein the plunger is to move toward the rotating shaft to compress the lubricant, in response to connecting the connection structure of the cartridge with the IFA.

10. The cartridge of claim 8, wherein the damping mechanism includes a lubricant path connected to the plunger and passing through the connection structure, and wherein the lubricant path is to fluidically connect the container with the connecting portion such that the lubricant is injected from the container, through the lubricant path, to the connecting portion.

11. A cartridge connectable to an image forming apparatus (IFA), the cartridge comprising: a connection structure connected to a rotating shaft of the cartridge, the connection structure comprising: a first structure to receive a driving force; an activating structure to separate a braking force transmission mechanism of the IFA from a driving force transmission mechanism; and a second structure to locate the braking force transmission mechanism of the IFA in an idle state by abutting against the braking force transmission mechanism at a retracted position in which the braking force transmission mechanism is separate from a braking force driving mechanism.

12. The cartridge of claim 11, wherein the connection structure includes an outermost point along a rotational axis, the first structure extends a first distance from the outermost point along the rotational axis, and the second structure extends a second distance from the outermost point along the rotational axis, and wherein the first distance is equal to or longer than the second distance.254881 -7731 -3238.1Atty. Dkt. No.: 8632285813. The cartridge of claim 11, wherein the connection structure includes an outermost point along the rotational axis, the first structure extends a first distance from the outermost point along the rotational axis, and the braking force transmission mechanism is to be abutted at a third distance from the outermost point along the rotational axis, and wherein the first distance is longer than the third distance.

14. The cartridge of claim 11, wherein the second structure includes a concave portion to maintain the braking force transmission mechanism at a retracted position where the braking force transmission mechanism is separate from the braking force driving mechanism.

15. The cartridge of claim 11, comprising a damping mechanism accommodated in the rotating shaft of the cartridge and adjacent to a connecting portion in which the connection structure of the cartridge is connected with the IF A, wherein the damping mechanism includes: a container to contain lubricant; a plunger located in the container; and a lubricant path to fluidically connect the container and the connecting portion through the connection structure and the plunger, wherein the plunger is to move to compress the lubricant in the container, and the lubricant compressed by the plunger is to be injected into the connecting portion, and wherein the lubricant injected into the connecting portion is to generate damping for the rotating shaft in response to rotating the rotating shaft.264881 -7731 -3238.1

Images