CN110764385A - Processing box - Google Patents
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- CN110764385A CN110764385A CN201910983865.7A CN201910983865A CN110764385A CN 110764385 A CN110764385 A CN 110764385A CN 201910983865 A CN201910983865 A CN 201910983865A CN 110764385 A CN110764385 A CN 110764385A
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- 238000001514 detection method Methods 0.000 claims abstract description 276
- 230000005540 biological transmission Effects 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 62
- 239000000843 powder Substances 0.000 claims description 20
- 238000000926 separation method Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1875—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit provided with identifying means or means for storing process- or use parameters, e.g. lifetime of the cartridge
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Abstract
A processing box comprises a shell, a gear end cover arranged at the end part of the shell and a conductive bracket arranged at one end of the shell, wherein a conductive matching part which is contacted with a detection mechanism of an image forming device is arranged on the conductive bracket, and the conductive matching part is a deformable conductive rod; the detection gear is arranged on the end wall of the shell, and a protruding part is arranged on the detection gear and can be directly or indirectly contacted with the conductive matching part; a transmission gear meshed with the detection gear; one of the detection gear and the transmission gear is a non-full-tooth gear, or the detection gear and the transmission gear can move relatively along the axial direction in the rotation process, and the detection gear moves from the first position to the second position in the relative movement process. The detection gear can enable the detection mechanism to be in a conducting or power-off state in the rotation process, and whether the processing box is a brand-new processing box or not is identified and judged by detecting the conducting state of the detection mechanism detected by one rotation of the detection gear.
Description
Technical Field
The present invention relates to a process cartridge used in an image forming apparatus.
Background
An image forming apparatus such as a laser printer, a copier, or the like generally has an image processing unit and a developing unit, and develops an electrostatic latent image formed on the image processing unit with a developer such as toner supplied from the developing unit to form a visible image on a medium such as paper. The developing unit includes a process cartridge, which is a cartridge detachably loaded in the main body of the image forming apparatus, as an integral unit including a casing, a photosensitive drum, a developing roller, a chamber for accommodating a developer, and the like.
In order to facilitate the judgment of whether the processing box is a brand new processing box, a detection mechanism is arranged on the partial image forming device, the detection mechanism is matched with a conducting strip on the processing box, and the conducting state of the detection mechanism is used for judging whether the loaded processing box is the brand new processing box.
Disclosure of Invention
The invention aims to provide a processing box, which can judge whether the processing box is brand new or not through the conductive state of a detection mechanism after the processing box is dropped.
In order to achieve the purpose, the invention adopts the following technical solutions:
a processing box comprises a shell, a gear end cover arranged at the end part of the shell and a conductive support arranged at one end of the shell, wherein a conductive matching part matched with a detection mechanism of an image forming device is arranged on the conductive support, and the conductive matching part is a flexible conductive rod; the detection gear is arranged on the end wall of the shell and is provided with a protruding part which can be directly or indirectly contacted with the conductive matching part; the transmission gear is meshed with the detection gear; one of the detection gear and the transmission gear is a non-full-tooth gear, or the detection gear and the transmission gear can move relatively and separate along the axial direction in the rotating process.
Optionally, the first position is a position where the detection gear and the transmission gear are engaged with each other, and the second position is a position where the detection gear and the transmission gear are separated from each other and disengaged from each other.
Optionally, the first position is a position where a distance between the toggle part on the detection gear and the axis of the conductive matching part on the conductive support is smaller than 0, and the second position is a position where a distance between the toggle part on the detection gear and the axis of the conductive matching part on the conductive support is larger than 0.
Further, the conductive engagement portion is always in contact with a detection mechanism of the image forming apparatus, the detection gear generates vibration by the protrusion colliding with the conductive engagement portion when rotating, and the detection mechanism of the image forming apparatus detects a vibration signal to recognize a state of the process cartridge.
Further, when the detection gear rotates, the protruding part directly or indirectly pushes the conductive matching part to leave the detection mechanism of the image forming device.
Furthermore, a separating mechanism capable of swinging around a pin shaft is arranged on the gear end cover, and the axis of the pin shaft is parallel to the axis of the detection gear; when the detection gear rotates, the protruding part can be contacted with the separation mechanism, and the conductive matching part is separated from the detection mechanism of the image forming device through the separation mechanism.
Furthermore, the protruding portion is a pair of shifting ribs which are arranged on the outer end face of the detection gear and protrude out of the detection gear in the radial direction, and the shifting ribs are arranged oppositely.
Further, the transmission gear is arranged at the end part of the powder feeding roller of the processing box.
Furthermore, the transmission gear further comprises a second transmission gear, the second transmission gear is a double-layer gear, and the second transmission gear is respectively meshed with the transmission gear and the detection gear.
Further, the detection gear and the transmission gear are full-tooth gears; the gear end cover is provided with a moving guide part matched with the shifting part, the front side surface of the moving guide part is a guide inclined plane, and after the detection gear finishes triggering of detection signals, the shifting part is contacted with the moving guide part and moves along the guide inclined plane, so that the detection gear is pushed to move axially, and the distance between the shifting part and the axis of the conductive matching part on the conductive support is larger than 0.
According to the scheme, the detection gear is arranged, the detection gear can drive the detection mechanism of the image forming device to move among different positions by pushing the deformable conducting rod in the rotating process, so that the detection mechanism is in a conducting or power-off state, the detection gear and one of the transmission gears meshed with the detection gear adopt a non-full-tooth structure or are axially separated, the detection gear can only rotate for one circle, and the power-on state of the detection mechanism is detected by the detection gear rotating for one circle; or after the detection gear rotates for a circle and moves axially, even if the detection gear is meshed with the transmission gear, the toggle part on the detection gear cannot be contacted with the conductive matching part any more and cannot trigger a detection signal any more, so that whether the processing box is a brand-new processing box can be identified and judged.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is an exploded perspective view of an end portion of a process cartridge in accordance with embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a detection gear according to embodiment 1 of the present invention;
FIGS. 3a to 3d are schematic views illustrating different states of the protrusion on the detection gear and the power-off paddle and the detection mechanism of the image forming apparatus during detection and recognition, respectively;
FIG. 4a is a schematic view of a part of the structure of a detection gear and a gear end cover according to embodiment 2 of the present invention;
FIG. 4b is a schematic view showing the detection of the separation of the gear and the transmission gear in embodiment 2 of the present invention
FIG. 4c is a schematic view showing another angle at which the detection gear and the transmission gear are separated according to embodiment 2 of the present invention;
FIG. 5 is an exploded perspective view of an end portion of a process cartridge according to embodiment 3 of the present invention;
FIG. 6 is a schematic view showing the end of the process cartridge of embodiment 3 without a gear cover;
FIG. 7 is a schematic view showing another angle of the end of the process cartridge after removing the gear cover according to embodiment 3 of the present invention;
FIG. 8 is a schematic structural diagram of a detection gear according to embodiment 3 of the present invention;
FIGS. 9a to 9e are schematic views of the detection gear and the conductive rod, respectively, and the detection mechanism of the image forming apparatus in different states during detection and recognition;
FIGS. 10a to 10c are schematic views of the detecting gear and the conductive rod, the separating mechanism and the detecting mechanism of the image forming apparatus in different states during the detection and identification processes according to embodiment 4 of the present invention;
FIG. 11 is an exploded perspective view of an end portion of a process cartridge according to embodiment 5 of the present invention;
FIG. 12 is a schematic view showing an end portion of a process cartridge according to embodiment 5 of the present invention;
FIG. 13 is a schematic view showing another angle of the end of the cartridge in accordance with embodiment 5 of the present invention;
FIG. 14 is a schematic structural view of a gear end cover according to embodiment 5 of the present invention;
15a to 15f are schematic diagrams of different states of the toggle rib and the conductive matching part on the detection gear and the detection mechanism of the image forming apparatus in the detection and identification processes of embodiment 5, respectively;
16a to 16f are schematic views of the toggle rib and the conductive matching part on the detection gear and the detection mechanism of the image forming apparatus of another angle in different states in the detection and identification process in embodiment 5, respectively;
17a to 17c are schematic views of the detection gear of embodiment 5 in different position states of the toggle rib and the movable guiding part after detection and identification are completed, respectively;
18a to 18c are schematic views of the detection gear of embodiment 5 at another angle when the toggle rib and the moving guide part are at different positions after the detection identification is completed;
fig. 19a and 19c are schematic diagrams of different stages of detecting the movement of the gear from the first position to the second position according to embodiment 5.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Detailed Description
The invention will be described in detail below with reference to the accompanying drawings, wherein for the purpose of illustrating embodiments of the invention, the drawings showing the structure of the device are not to scale but are partly enlarged, and the schematic drawings are only examples, and should not be construed as limiting the scope of the invention. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is provided solely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example 1
As shown in fig. 1 and 2, the process cartridge of the present embodiment includes a casing 1 and a gear cover 2 provided at a side end of the casing 1. The housing 1 is provided therein with a photosensitive drum, a developing roller, a powder feed roller, a powder hopper for containing a developer, and the like. A conductive bracket 3 is arranged at one end of the shell 1, and the conductive bracket 3 is positioned in the gear end cover 2. The conductive holder 3 has a conductive engaging portion 3-1 that engages with a detecting mechanism on the image forming apparatus. A detection gear 4 is mounted on the end wall of the processing box (housing), the detection gear 4 of the embodiment is meshed with a transmission gear 6 arranged on a powder feeding roller 5, and the detection gear 4 and the transmission gear 6 are both positioned on the outer side (the side far away from the housing) of the conductive bracket 3. When the driving gear of the processing box rotates under the action of the driving head on the image forming device and drives the powder feeding roller 5 to rotate, the powder feeding roller 5 also drives the detection gear 4 to synchronously rotate through the transmission gear 6. The transmission gear is arranged at the end part of the powder feeding roller, so that compared with a mode of relying on the transmission of the stirring frame in the prior art, the problem of large torsion of the processing box can be solved, the distortion and deformation of the stirring frame caused by the large torsion can be avoided, and meanwhile, abnormal sound generated in the high-speed printing process can be controlled. The axis of the powder feeding roller is generally made of steel materials and is used as a driving shaft of a transmission gear, and stable driving force can be transmitted to a rear gear.
The outer end face of the detection gear 4 is provided with a toggle part 4a which protrudes and extends along the axial direction of the detection gear, the toggle part 4a can adopt a cam structure, and the toggle part 4a is provided with a protruding part 4b which protrudes out of the outer peripheral wall of the toggle part 4a in the radial direction. A movable power-off shifting block 7 is arranged in the gear end cover 2, and the power-off shifting block 7 can be arranged on the gear end cover 2 through a pin shaft (not shown), wherein the axis of the pin shaft is parallel to the axis of the detection gear 4. The power-off shifting block 7 can rotate around the pin shaft, and the power-off shifting block 7 can be in contact with or separated from a detection mechanism of the image forming device during rotation. In the process of detecting the rotation of the gear 4, the protrusion 4b can be in contact with the power-off shifting block 7 and drive the power-off shifting block 7 to rotate, so that the detection mechanism of the image forming device in contact with the conductive matching part 3-1 is lifted, the power-on state of the detection mechanism of the image forming device is changed, and the falling detection of the processing box is realized. The detection gear 4 of the embodiment is a non-full-tooth gear, when the detection gear 4 and the transmission gear 6 are meshed together and rotate until the empty tooth part on the detection gear 4 is opposite to the transmission gear 6, the empty tooth part on the detection gear 4 cannot be meshed with the transmission gear 6, and the detection gear 4 and the transmission gear 6 do not rotate along with the transmission gear 6 after being disengaged. In other embodiments, the detection transmission gear may be a non-full-tooth gear, and the effect that two gears cannot be meshed for transmission after rotating a specific angle can be achieved as long as one of the detection driving gear and the detection transmission gear is the non-full-tooth gear. When the position is proper, the detection gear 4 can also directly move the detection mechanism 100 of the image forming apparatus through the protrusion 4b to make it leave the conductive matching part 3-1.
With reference to fig. 3a to 3d, a description will be given of how to detect whether the process cartridge is completely new by cooperating with the detection mechanism of the image forming apparatus after the process cartridge loading machine of the present embodiment:
as shown in fig. 3a, when the process cartridge is loaded into the image forming apparatus, the detection gear 4 is in the initial position, and at this time, the protrusion 4b of the detection gear 4 is not in contact with the power-off toggle 7, and the detection mechanism 100 on the image forming apparatus is in contact with the conductive engagement portion 3-1 on the conductive holder 3, and is in the power-on state;
after the processing box falls off the machine, a driving gear (not shown) of the processing box is driven by a driving head of the image forming device to rotate and drive the powder feeding roller 5 to rotate together, a transmission gear 6 arranged at the end part of the powder feeding roller 5 also synchronously rotates, the transmission gear 6 drives a detection gear 4 meshed with the transmission gear to rotate, and at the moment, a protruding part 4b of the detection gear 4 moves towards the direction close to the power-off shifting block 7 in the rotation process of the detection gear 4, as shown in fig. 3 b;
with the continuous rotation of the detection gear 4, the protrusion 4b on the detection gear 4 contacts with the power-off shifting block 7 and drives the power-off shifting block 7 to rotate, one end of the power-off shifting block 7 contacts with the detection mechanism 100 in the rotation process and lifts the detection mechanism 100, so that the detection mechanism 100 leaves the conductive matching part 3-1 (fig. 3c), and the detection mechanism 100 is in a power-off state;
with the continuous rotation of the detection gear 4, the protrusion 4b on the detection gear 4 leaves the power-off shifting block 7, the power-off shifting block 7 and the detection mechanism 100 are respectively reset, and the detection mechanism 100 is again contacted with the conductive matching part 3-1 on the conductive bracket 3 (fig. 3d) and is in a conducting state; when the protruding part 4b on the detection gear 4 leaves the power-off shifting block 7, the detection gear 4 rotates until the empty tooth part of the detection gear 4 is opposite to the transmission gear 6, the detection gear 4 is separated from the transmission gear 6, and the detection gear 4 does not rotate along with the transmission gear 6 any more. In the process from the start of rotation to the stop of rotation of the detection gear 4, the detection mechanism 100 undergoes an on-off-on state, and the process cartridge can be subjected to identification detection based on the power-on state of the detection mechanism. When the detection gear 4 is separated from the transmission gear 6, the detection gear 4 cannot rotate any more, namely, the falling detection process of the detection gear is disposable, after the non-new processing box is installed, the detection gear is separated from the transmission gear, and the detection mechanism cannot be triggered to send a conducting/power-off electric signal through the protruding part and the power-off shifting block, so that whether the processing box is brand new or not can be detected, and if the processing box is installed, the image forming equipment does not detect the electric signal, the processing box is considered not to be the brand new processing box.
Example 2
This example differs from example 1 in that: the detection gear 4 and the transmission gear 6 of the present embodiment are all full-tooth gears, and the detection gear 4 and the transmission gear 6 can move relatively in the axial direction to be staggered and separated from a mutually meshed state. Referring to fig. 4a, the present embodiment is provided with a separating portion 4c on the outer end face of the detection gear 4, the separating portion 4c protruding from the outer end face of the detection gear 4 in a direction parallel to the axis of the detection gear 4, the separating portion 4c having a guide slope s, the guide slope s being a front side face of the separating portion 4 c. Furthermore, a support rib 4d is arranged on the inner end surface of the detection gear 4, the support rib 4d is positioned between the detection gear 4 and the conductive bracket 3, the support rib 4d provides a support force for the detection gear 4 to enable the detection gear to be positioned at a position meshed with the transmission gear, at the moment, the detection gear is positioned at the first position, and the position detection gear and the transmission gear keep a meshed state. The support ribs 4d are made of a material with deformation capability.
The gear cover 2 is provided with a stopper 2a, and when the detection gear 4 rotates to a certain angle, the guide slope s of the separation portion 4c faces the stopper 2 a. When the detection gear 4 rotates to the position that the guide inclined plane s of the separation part 4c is contacted with the limiting part 2a on the gear end cover 2, the limiting part 2a moves along the guide inclined plane of the separation part 4c and pushes the detection gear 4 along the axial direction, in the process, the support rib 4d is pressed and deformed, the support effect on the detection gear 4 is lost, when the limiting part 2a moves to the top of the guide inclined plane s, as shown in fig. 4b and 4c, the detection gear 4 and the transmission gear 6 are staggered and are not meshed with each other, so that the detection gear 4 does not rotate along with the transmission gear 6, the detection gear is at the second position, and the detection gear and the transmission gear are separated and disengaged. The process of identification detection after the process cartridge mounting of this embodiment is the same as that of embodiment 1, and will not be described in detail here.
Example 3
Referring to fig. 5, 6 and 7, the process cartridge of the present embodiment includes a housing 1 and a gear cover 2 provided at a side end of the housing 1. The housing 1 is provided therein with a photosensitive drum, a developing roller, a powder feed roller, a powder hopper for containing a developer, and the like. A conductive holder 3 is provided at one end of the housing 1, and the conductive fitting portion of the present embodiment is a deformable conductive rod 3-1' provided on the conductive holder 3. The transmission gear of this embodiment includes first transmission gear 6 and second transmission gear 7, and first transmission gear 6 sets up in the tip of powder feeding roller 5, and the second transmission gear sets up on the end wall of handling box casing, and second transmission gear 7 is double-deck gear, and second transmission gear 7 meshes with first transmission gear 6 and detection gear 4 mutually respectively. When the driving gear of the processing box rotates under the action of the driving head on the image forming device and drives the powder feeding roller 5 to rotate, the powder feeding roller 5 also drives the detection gear 4 to synchronously rotate through the first transmission gear 6 and the second transmission gear 7.
As shown in fig. 8, a pair of toggle ribs 4b 'protruding radially from the detection gear 4 is disposed on the outer end surface of the detection gear 4, and the two toggle ribs 4 b' are disposed oppositely. The poking rib 4b 'of the embodiment is equivalent to the poking part in the embodiment 1, in the process of detecting the rotation of the gear 4, the poking rib 4 b' can be in contact with the conducting rod 3-1 ', the conducting rod 3-1' is in contact with the detection mechanism of the image forming device all the time, when the poking rib 4b 'is in contact with the conducting rod 3-1', the detection mechanism can detect vibration, and the falling detection of the processing box is realized through a vibration signal detected by the detection mechanism. The detection gear 4 of the present embodiment is a non-full-tooth gear.
With reference to fig. 9a to 9e, a description will be given below of how the process cartridge mounting apparatus of the present invention cooperates with the detecting mechanism of the image forming apparatus to detect whether the process cartridge is completely new:
as shown in fig. 9a, when the process cartridge is just loaded into the image forming apparatus, the detecting gear 4 is at the initial position, and both the two toggle ribs 4b ' of the detecting gear 4 are not in contact with the conductive rod 3-1 ', and the detecting mechanism 100 on the image forming apparatus is in contact with the conductive rod 3-1 ' on the conductive bracket 3;
after the processing box falls off the machine, a driving gear (not shown) of the processing box is driven by a driving head of the image forming device to rotate and drive the powder feeding roller 5 to rotate together, a first transmission gear 6 arranged at the end part of the powder feeding roller 5 also synchronously rotates and drives a detection gear 4 (shown by an arrow in the figure) to rotate together through a second transmission gear 7, at the moment, a shifting rib 4b 'on the detection gear 4 is contacted with a conductive rod 3-1', the conductive rod 3-1 'is vibrated after being collided by the shifting rib 4 b', the detection mechanism 100 can detect a vibration signal (the detection mechanism 100 can also be touched to generate vibration in the rotating process of the detection gear 4, and the detection mechanism 100 detects the vibration signal), as shown in fig. 9 b;
with the continuous rotation of the detection gear 4, the toggle rib 4b ' on the detection gear 4 leaves the conducting rod 3-1 ', and the conducting rod 3-1 ' or the detection mechanism 100 is reset (fig. 9 c);
the detection gear 4 continues to rotate, another toggle rib 4b 'on the detection gear 4 moves to be in contact with the conducting rod 3-1', the conducting rod 3-1 'is touched by the toggle rib 4 b' again to generate vibration, and the detection mechanism 100 detects a vibration signal (the detection mechanism 100 can also generate vibration by touching the detection mechanism 100 in the rotation process of the detection gear 4, and the detection mechanism 100 detects the vibration signal), as shown in fig. 9 d;
the detection gear 4 continues to rotate, and the second toggle rib 4b ' leaves the conducting rod 3-1 ', and the conducting rod 3-1 ' or the detection mechanism 100 is reset again (fig. 9 e). When the two shifting ribs 4b 'on the detection gear 4 are away from the broken conducting rod 3-1', the detection gear 4 rotates until the empty tooth part is opposite to the second transmission gear 7, the detection gear 4 is separated from the second transmission gear 7, and the detection gear 4 does not rotate any more. In the process from the start of rotation to the stop of rotation of the detection gear 4, the detection mechanism 100 can detect the vibration signal twice, i.e., can perform the identification detection of the process cartridge based on whether or not the image forming apparatus detects the vibration signal.
Example 4
This example differs from example 3 in that: when the detection gear 4 rotates, the toggle ribs on the detection gear directly or indirectly push the conducting rod to deform the conducting rod and leave the detection mechanism, so that the conducting state of the detection mechanism is changed. In this embodiment, a movable separating mechanism 8 (fig. 10a) is provided in the gear end cover 2, and the toggle rib of the detection gear 4 deforms the conducting rod through the separating mechanism 8 and leaves the detection mechanism. The separating mechanism 8 can be arranged on the gear end cover 2 through a pin shaft (not shown), the axis of the pin shaft is parallel to the axis of the detection gear 4, and the separating mechanism 8 can rotate around the pin shaft. One end of the separating mechanism 8 is contacted with the conducting rod 3-1 ', and the other end can be contacted with the shifting rib 4 b' on the detection gear 4.
As shown in fig. 10a, when the process cartridge is just loaded into the image forming apparatus, the detection gear 4 is at the initial position, the toggle rib 4b 'on the detection gear 4 is not in contact with the separating mechanism 8, the detection mechanism 100 on the image forming apparatus is in contact with the conductive rod 3-1' on the conductive bracket 3, and the detection mechanism is in a conducting state;
after the processing box falls off the machine, a driving gear (not shown) of the processing box is driven by a driving head of the image forming device to rotate and drive the powder feeding roller 5 to rotate together, a first transmission gear 6 arranged at the end part of the powder feeding roller 5 also synchronously rotates and drives a detection gear 4 (shown by an arrow in the figure) to rotate together through a second transmission gear 7, when a poking rib 4b 'on the detection gear 4 rotates to be contacted with a separating mechanism 8 (figure 10b), the poking rib 4 b' can push the separating mechanism 8 along with the continuous rotation of the detection gear 4, the separating mechanism 8 rotates and further pushes a conductive rod 3-1 'contacted with the separating mechanism 8, the conductive rod 3-1' deforms and leaves the detection mechanism 100 (figure 10c), the detection mechanism 100 is in a power-off state (the conductive rod can also be pushed through the rotation process of the detection gear 4, the energization state of the detection mechanism 100 is changed by changing the position of the conductive rod). When the toggle rib 4b 'on the detection gear 4 leaves the separating mechanism 8, the separating mechanism 8 and the conducting rod 3-1' are reset, and the detection mechanism 100 is in a conducting state again.
The detection gear 4 rotates to the empty tooth part and is opposite to the second transmission gear 7, the detection gear 4 is separated from the second transmission gear 7, and the detection gear 4 does not rotate any more. In the process from the start of rotation to the stop of rotation of the detection gear 4, the detection mechanism 100 is in an on or off state, and the process cartridge can be detected by the image forming apparatus based on whether or not the above state is detected.
Example 5
This example differs from example 2 in that: after moving in the axial direction relative to the transmission gear 6, the detection gear 4 (full-tooth gear) does not disengage from the transmission gear 6, but continues to engage with the transmission gear 6 and rotates together with the transmission gear 6. As shown in fig. 11, 12 and 13, the detecting gear 4 is provided with a pair of toggle ribs 4b 'protruding radially from the peripheral wall thereof, and the two toggle ribs 4 b' are arranged oppositely. In the process of detecting the rotation of the gear 4, the poking ribs 4 b' can be in contact with the conductive matching parts 3-1 on the conductive support 3, and the conductive matching parts 3-1 are poked to deform or move the conductive matching parts 3-1, so that the detection mechanism on the image forming device is further poked, and the image forming device can identify the processing box. When the detection gear 4 is located at the first position, the axial distance h between the poking rib 4b ' (poking part) on the detection gear 4 and the conductive matching part 3-1 is smaller than 0, namely the poking rib 4b ' and the conductive matching part 3-1 are overlapped, so that when the detection gear 4 rotates to a certain position, the poking rib 4b ' on the detection gear can touch the conductive matching part 3-1; when the detection gear 4 is located at the second position, the axial distance h between the poking rib 4b ' (poking part) on the detection gear 4 and the conductive matching part 3-1 is larger than 0 (fig. 18c), and because a gap exists between the poking rib 4b ' and the conductive matching part 3-1 in the axial direction, the poking rib 4b ' on the detection gear 4 cannot touch the conductive matching part 3-1 in the rotating process, so that whether the processing box is a brand-new processing box is judged according to the detection signal.
As shown in fig. 11, 12 and 14, in order to facilitate the detection of the installation of the gear 4, the gear cover of the present embodiment is composed of two parts: the detection device comprises a first end cover 2-1 and a second end cover 2-2, wherein the second end cover 2-2 is arranged on the outer side of the first end cover 2-1, and a detection gear 4 is arranged between the first end cover 2-1 and the second end cover 2-2. As shown in fig. 14, a moving guide 2-2a is provided inside the second cap 2-2. The structure and function of the movable guide part 2-2a are similar to those of the separation part in embodiment 2, the movable guide part 2-2a also has a guide slope s, the toggle rib 4 b' can be matched with the movable guide part 2-2a and move along the guide slope s in the rotation process of the detection gear 4, and the movable guide part 2-2a can enable the detection gear 4 to move axially in the rotation process of the detection gear 4 and move from the first position to the second position. In the embodiment, a pair of toggle ribs 4b ' is arranged on the detection gear 4, wherein only the toggle rib 4b ' at the front position can be in contact fit with the movable guide part 2-2a, and the toggle rib 4b ' at the rear position has a shorter length in the radial direction, can be in contact with the conductive fit part 3-1, but cannot be in contact with the movable guide part 2-2 a.
The rotating shaft of the detection gear is made of non-conductive materials, a hole for the rotating shaft of the detection gear to penetrate through is processed in the conductive support 3, and a split structure is arranged between the detection gear and the electric conduction. The rotating shaft of the detection gear is made of a non-conductive material, so that the cost can be effectively reduced, the bending strength of the rotating shaft can be enhanced, and the impact resistance can be improved. And the rotation axis that detects the gear passes from the hole on the electrically conductive support, can increase the positioning accuracy of rotation axis, can guarantee after the equipment is accomplished that the rotation axis does not rock, and then guarantees to detect the rotation that the gear can be stable and realize detecting, guarantees to handle the box installation success.
With reference to fig. 15a to 15f and fig. 16a to 16f, a description will be given of how the process cartridge of the present embodiment is matched with the detecting mechanism of the image forming apparatus to detect whether the process cartridge is completely new or not:
after the processing box is installed, the detection gear 4 is at an initial position, the toggle ribs 4b ' on the detection gear 4 are not in contact with the conductive matching part 3-1 on the conductive support 3 at the moment, the toggle ribs 4b ' gradually approach the conductive matching part 3-1 along with the rotation of the detection gear 4, and fig. 15a and 16a are schematic diagrams of different angles when the toggle ribs 4b ' positioned in front on the detection gear 4 are about to contact the conductive matching part 3-1 respectively;
the detection gear 4 continues to rotate, as shown in fig. 15b and fig. 16b, the toggle rib 4b 'touches the conductive matching part 3-1, and toggles the conductive matching part 3-1 to deform or swing, the conductive matching part 3-1 further toggles the detection mechanism 100 under the action of the toggle rib 4 b', and the detection mechanism 100 sends a detection signal;
as shown in fig. 15c and fig. 16c, the toggle rib 4b ' located at the front position leaves the conductive matching part 3-1 along with the rotation of the detection gear 4, the conductive matching part 3-1 and the detection mechanism 100 are reset, the toggle rib 4b ' located at the rear position rotates to pass through the moving guide part 2-2a, and the toggle rib 4b ' does not contact the moving guide part 2-2a, so that the detection gear 4 does not axially move;
fig. 15d and 16d are schematic views of the rear striking rib 4 b' about to contact the conductive mating part 3-1; fig. 15e and fig. 16e are schematic diagrams when the rear toggle rib 4b 'contacts the conductive matching part 3-1, at this time, the conductive matching part 3-1 is toggled by the toggle rib 4 b', and further toggles the detection mechanism 100, and sends out a detection signal; as shown in fig. 15f and 16f, the rear toggle rib 4 b' moves away from the conductive engagement portion 3-1 with the rotation of the detection gear 4, and the conductive engagement portion 3-1 and the detection mechanism 100 are reset, at this time, the image forming apparatus has completed the detection and identification of the new process cartridge by the detection signal from the detection mechanism 100.
With the rotation of the detection gear 4, the previous striking rib 4b 'gradually approaches the moving guide 2-2a, and fig. 17a, 18a and 19a are schematic views of the striking rib 4 b' about to contact the moving guide 2-2a, respectively;
as shown in fig. 17b, 18b and 19b, after the striking rib 4b 'contacts the moving guide 2-2a, the striking rib 4 b' moves along the guiding slope s of the moving guide 2-2a, and the detecting gear 4 moves from the first position to the second position in the axial direction under the action of the guiding slope s;
as shown in fig. 19c, when the toggle rib 4b ' moves to the top of the moving guide 2-2a along the guide slope s, the detection gear 4 also moves to the second position along the axial direction, as shown in fig. 18c, at this time, there is a gap (h is greater than 0) between the toggle rib 4b ' and the conductive matching part 3-1 in the axial direction, so that even though the detection gear 4 is still engaged with the transmission gear 6 and rotates along with the transmission gear 6 (fig. 17c), the toggle rib 4b ' does not touch the conductive matching part 3-1, and therefore the detection mechanism cannot be triggered to send out a detection signal, and thus whether the processing cartridge is a brand new processing cartridge can be identified.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A processing box comprises a shell and a gear end cover arranged at the end part of the shell, and is characterized by further comprising:
the conductive support is arranged at one end of the shell, a conductive matching part which is contacted with a detection mechanism of the image forming device is arranged on the conductive support, and the conductive matching part is a deformable conductive rod;
the detection gear is arranged on the end wall of the shell and is provided with a protruding part which can be directly or indirectly contacted with the conductive matching part;
the transmission gear is meshed with the detection gear;
one of the detection gear and the transmission gear is a non-full-tooth gear, or the detection gear and the transmission gear can move relatively along the axial direction in the rotation process, and the detection gear moves from a first position to a second position in the relative movement process.
2. A process cartridge according to claim 1, wherein: the first position is a position where the detection gear and the transmission gear are engaged with each other, and the second position is a position where the detection gear and the transmission gear are separated from each other and disengaged from each other.
3. A process cartridge according to claim 1, wherein: the first position is a position where the distance between the shifting part on the detection gear and the axis of the conductive matching part on the conductive support is smaller than 0, and the second position is a position where the distance between the shifting part on the detection gear and the axis of the conductive matching part on the conductive support is larger than 0.
4. A process cartridge according to claim 2, wherein: the conductive matching part is always contacted with a detection mechanism of the image forming device, the protrusion part collides with the conductive matching part to generate vibration when the detection gear rotates, and the detection mechanism of the image forming device detects a vibration signal to identify the state of the processing box.
5. A process cartridge according to claim 2, wherein: when the detection gear rotates, the protruding part directly or indirectly pushes the conductive matching part to leave the detection mechanism of the image forming device.
6. A process cartridge according to claim 5, wherein: a separation mechanism capable of swinging around a pin shaft is arranged on the gear end cover, and the axis of the pin shaft is parallel to the axis of the detection gear; when the detection gear rotates, the protruding part can be contacted with the separation mechanism, and the conductive matching part is separated from the detection mechanism of the image forming device through the separation mechanism.
7. A process cartridge according to claim 5, wherein: the protruding portion is a pair of poking ribs which are arranged on the outer end face of the detection gear and protrude out of the detection gear in the radial direction, and the poking ribs are arranged oppositely.
8. A process cartridge according to claim 7, wherein: the transmission gear is arranged at the end part of the powder feeding roller of the processing box.
9. A process cartridge according to claim 8, wherein: the transmission gear further comprises a second transmission gear, the second transmission gear is a double-layer gear, and the second transmission gear is meshed with the transmission gear and the detection gear respectively.
10. A process cartridge according to claim 1 or 3, wherein: the detection gear and the transmission gear are full-tooth gears;
the gear end cover is provided with a moving guide part matched with the shifting part, the front side surface of the moving guide part is a guide inclined plane, and after the detection gear finishes triggering of detection signals, the shifting part is contacted with the moving guide part and moves along the guide inclined plane, so that the detection gear is pushed to move axially, and the distance between the shifting part and the axis of the conductive matching part on the conductive support is larger than 0.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019108250027 | 2019-09-02 | ||
| CN2019214606458 | 2019-09-02 | ||
| CN201910825002 | 2019-09-02 | ||
| CN201921460645 | 2019-09-02 |
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| Publication Number | Publication Date |
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| CN110764385A true CN110764385A (en) | 2020-02-07 |
| CN110764385B CN110764385B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921741600.8U Active CN210894998U (en) | 2019-09-02 | 2019-10-16 | Novel processing box |
| CN201910983203.XA Active CN110764384B (en) | 2019-09-02 | 2019-10-16 | Process cartridge |
| CN201910983865.7A Active CN110764385B (en) | 2019-09-02 | 2019-10-16 | Processing box |
| CN201921741552.2U Active CN210894997U (en) | 2019-09-02 | 2019-10-16 | Novel processing box |
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| CN201921741600.8U Active CN210894998U (en) | 2019-09-02 | 2019-10-16 | Novel processing box |
| CN201910983203.XA Active CN110764384B (en) | 2019-09-02 | 2019-10-16 | Process cartridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210894998U (en) * | 2019-09-02 | 2020-06-30 | 珠海市汇威打印机耗材有限公司 | Novel processing box |
| CN114253111B (en) * | 2021-12-08 | 2024-03-22 | 广州众诺微电子有限公司 | Powder box and printer |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110764385B (en) | 2024-02-13 |
| CN210894998U (en) | 2020-06-30 |
| CN110764384B (en) | 2023-12-05 |
| CN210894997U (en) | 2020-06-30 |
| CN110764384A (en) | 2020-02-07 |
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