CN212781672U - Developer replenishing device - Google Patents

Abstract

The utility model discloses a developer box includes: the developer container comprises a container body and a plurality of pushing members, wherein a plurality of accommodating cavities are defined in the container body, a plurality of first discharge ports are arranged in the accommodating cavities, each pushing member sequentially slides from an initial position to a plurality of pushing positions, and each pushing member is constructed to push out the developer in the accommodating cavity section by section at the plurality of pushing positions; the developer cover is connected with the box body and is provided with a second outlet; the control component comprises a chip and a control switch for controlling the communication state of the chip and the printer to be switched on or off. Like this, let the impeller that is in a plurality of holding intracavity can promote respectively that the developer that the difference held the intracavity is from holding the discharge port injection of intracavity respectively to let developer replenishing device can let the first discharge port injection of holding intracavity that the material that the intracavity was held to the solitary is just accessible corresponds when carrying out the replenishment of developer, thereby let the more flexibility of replenishment of developer, can carry out reasonable replenishment according to the disappearance condition of developer.

Description

Developer replenishing device

Technical Field

The utility model belongs to the technical field of the formation of image consumptive material technique and specifically relates to a developer replenishing device is related to.

Background

In the prior art, image forming apparatuses such as printers, copiers, facsimile machines, or multifunction printers generally need to use developers such as toner or ink to perform printing or copying operations. In the prior art, some printers (such as HP1103 series printers) are configured to replenish the developer in the main unit with the developer via an external developer cartridge, and the external developer cartridge must be authenticated by the printer before replenishing the developer in the main unit. Referring to the following drawings, a switch is provided in the developing cartridge. After the outside development box is verified by the printer, push the body of rod to the end, the body of rod can trigger the switch in the development box, then chip on the development box sends the signal that the powder that fills finishes and gives the printer, then will develop the box and take out from the printer can. The developing cartridge in the prior art can be used only once, and all cartridges of each new cartridge can be replenished with a predetermined capacity, which may be 0.5 times the maximum capacity of the printer. After the use, the powder box is either discarded or needs to be maintained by a professional and then used again. Discarding or repairing the compact can increase user costs and can also contaminate the environment.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a developer replenishing device, which aims to solve the technical problem that the powder box in the prior art cannot be used repeatedly.

The utility model discloses developer replenishing device of first aspect embodiment, include: developer cartridge, developer lid and control assembly, the developer cartridge includes: the developer box comprises a box body and at least one pushing piece, wherein a plurality of accommodating cavities are defined in the box body, one end of the box body is provided with a plurality of first discharge ports which are communicated with the accommodating cavities in a one-to-one correspondence mode, each pushing piece slides relative to the box body to sequentially move from an initial position to a plurality of pushing positions which are close to the first discharge ports compared with the initial position, and the developer cover is connected to the box body and provided with a second discharge port communicated with the first discharge ports; the control component comprises a chip and a control switch electrically connected with the chip, and the control switch is used for controlling the connection or disconnection of the communication state of the chip and the printer.

Like this, through being equipped with a plurality of impeller, thereby let the impeller that is in a plurality of holding intracavity can promote the equilibrium that can be more when pouring into the developer into, can use a plurality of chamber mixedly to pour into simultaneously, the material that holds the intracavity alone just can pour into through the first delivery port that holds the intracavity that corresponds promptly to let the replenishment of developer more nimble, can carry out reasonable replenishment according to the disappearance condition of developer.

In some embodiments, the pushing member includes a rod and a push plate connected to one end of the rod, the push plate is slidably engaged with the side wall of the accommodating chamber, and the pushing member is positioned and engaged with the box body at each pushing position.

In some embodiments, the pushing member further includes at least first limiting portions, each of the first limiting portions is detachably mounted on the rod body, a second limiting portion is formed in a hole of the box body through which the rod body passes, and the first limiting portions different in each pushing-out position are respectively in positioning fit with the second limiting portions.

In some embodiments, the second position-limiting part is a positioning hole formed at an end of the box body, and the maximum outer diameter of the first position-limiting part is larger than the maximum outer diameter of the second position-limiting part.

In some embodiments, the cross section of the accommodating cavity is semicircular, the push plate is semicircular, and the two first discharge ports are both arranged close to the central axis of the partition plate and the central axis of the box body.

In some embodiments, the cartridge comprises a barrel and an end cap connected to one end of the barrel, the end cap has a through hole for the pushing member to pass through, the pushing plate is located on the inner side of the end cap, and the end cap or one end of the barrel opposite to the end cap is provided with a filling port.

In some embodiments, the injection port is located on the end cap, the push plate has a through hole for injection, and a side of the push plate facing the first discharge port is provided with a valve sheet configured to close the through hole when the pushing member moves toward the push-out position and to open the through hole when injecting the material.

In some embodiments, the developer cover includes: the chip comprises a barrel, a first cover body, a second cover body and a third cover body, wherein the barrel is covered by the first cover body, a second discharge port is formed in the first cover body, the second cover body is detachably connected with the first cover body, a control switch is arranged on the first cover body or the second cover body, the chip is provided with the first cover body or the second cover body, and the third cover body is used for plugging the second discharge port.

In some embodiments, the first cover includes: first lid and first pipe portion, the second lid have second lid and second pipe portion, and the second lid cover is detained and is worn out the second pipe portion in first lid and first pipe portion, and the lateral wall of first lid is equipped with the switch mounting groove, and the lateral wall of second lid is equipped with the switch installing support, and in the switch installing support inserted the switch mounting groove, control switch installed between switch mounting groove and switch installing support.

In some embodiments, the side wall of the first tube portion is provided with a chip support table, the side wall of the second tube portion is provided with a chip mounting groove, the chip is mounted in the mounting groove and the back surface of the chip is supported on the chip support table.

In some embodiments, the control assembly further includes a first conductive sheet and a second conductive sheet, the first conductive sheet and the second conductive sheet are fixed to at least one of the first cover and the second cover, a first end of the first conductive sheet is electrically connected to the chip and a second end of the first conductive sheet is opposite to the control switch, a first end of the second conductive sheet is electrically connected to the chip and a second end of the second conductive sheet is matched with the second end of the first conductive sheet, and under a predetermined condition, the control switch can move to be inserted between the second end of the first conductive sheet and the second end of the second conductive sheet, so that the control chip can send a supplement completion signal.

In some embodiments, the control switch has a wedge head, the first conductive plate has a movable elastic sheet, the second conductive plate has a static elastic sheet, and under a predetermined condition, the wedge head can be inserted between the movable elastic sheet and the static elastic sheet to enable the movable elastic sheet to move away from the static elastic sheet and separate from the static elastic sheet.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic perspective view of a developer replenishing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view showing a developer replenishing apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a developer replenishing apparatus according to an embodiment of the present invention;

FIG. 4 is another schematic perspective view of a developer replenishing apparatus according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a developer cartridge according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a developer cartridge according to an embodiment of the present invention;

reference numerals:

a developer replenishing device 100, a developer cartridge 10, a cartridge body 11, a first discharge port 111, a second stopper 112, a cylinder body 113, an end cap 114, a through hole 115, a charging port 116, a partition plate 117,

the pushing member 12, the rod body 121, the first limiting portion 1211, the pushing plate 122, the developer cover 20, the second outlet 21, the first cover 22, the first cover 221, the switch mounting groove 2211, the first tube portion 222, the chip support table 2221, the second cover 23, the second cover 231, the switch mounting bracket 2311, the second tube portion 232, the chip mounting groove 2321, the third cover 24, the control assembly 30, the chip 31, the control switch 32, the wedge-shaped head 321, the first conductive sheet 33, the movable elastic sheet 331, the second conductive sheet 34, the static elastic sheet 341 and the accommodating cavity q.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

A developer replenishing apparatus 100 according to an embodiment of a first aspect of the present invention is described below with reference to fig. 1 to 6, including: a developer cartridge 10, a developer cover 20, and a control assembly 30, the developer cartridge 10 including: a cartridge 11 and at least one pushing member 12, the cartridge 11 defining a plurality of accommodating chambers q therein, one end of the cartridge 11 having a plurality of first discharge ports 111 communicating with the plurality of accommodating chambers q in a one-to-one correspondence, each pushing member 12 sliding with respect to the cartridge 11, each pushing member 12 being configured to push out the developer in the accommodating chamber q segment by segment at a plurality of push-out positions; the developer cover 20 is connected to the cartridge body 11 and has a second discharge port 21 communicating with the plurality of first discharge ports 111; the control component 30 includes a chip 31 and a control switch 32 electrically connected to the chip 31, and the control switch 32 is used for controlling the communication state of the chip 31 and the printer to be switched on or off.

Wherein, the number of the pushing members 12 is at least two, and the number of the pushing members 12 corresponds to the accommodating cavity q in the box body 11 one by one, so that the pushing members 12 can push the developer into the accommodating cavity q, and the pushing members 12 are provided with a plurality of pushing positions to push the developer in the accommodating cavity q section by section, when each pushing member 12 pushes the pushing position, the pushing members 12 and the accommodating cavity q can form a unified closed structure, and each pushing member 12 is provided with a plurality of pushing positions, the developer which can be pushed by each pushing position is generally smaller than or equal to the capacity of the developer box 10, so that the developer injected each time can be determined, the injection of the developer can be more reasonable, the overflow of the developer caused by excessive injection once can not be used, or the injection of the developer which is too little to cause the injection many times can not be performed, and the developer replenishing device 100 can be used according to the needs of users, the developer replenishing apparatus 100 is more flexible in use.

Like this, through being equipped with a plurality of impeller 12, thereby let impeller 12 in a plurality of holding chamber q can promote the equilibrium that can be more when pouring into the developer into, can use a plurality of chamber q mixed injection that hold simultaneously, the material that holds in the chamber q alone just can the accessible correspond hold the first discharge port 111 injection in the chamber q promptly to let the more flexibility of replenishment of developer, can carry out reasonable replenishment according to the disappearance condition of developer.

In the particular embodiment shown in fig. 2, pusher 12 comprises a rod 121 and a push plate 122 attached to one end of rod 121, push plate 122 being in sliding engagement with the side wall of housing q, pusher 12 being in positioning engagement with magazine 11 in each pushed-out position.

Therefore, the pushing member 12 discharges the developer through the first discharge port 111 by pushing the pushing plate 122 coupled to the rod body 121, so that the developer in the accommodating chamber q is discharged more cleanly with less residue in the accommodating chamber q.

In the specific example shown in fig. 1, the pushing member 12 further includes at least first position-limiting portions 1211, each of the first position-limiting portions 1211 is detachably mounted on the rod 121, a hole of the case 11 through which the rod 121 passes is formed with a second position-limiting portion 112, and the first position-limiting portions 1211 different in each pushing position are respectively positioned and matched with the second position-limiting portions 112.

Therefore, the end of the accommodating cavity q close to the rod body 121 can be in the same plane when the rod body 121 is in the position-limiting position through the mutual matching of the first position-limiting part 1211 and the second position-limiting part 112, that is, when the rod body 121 is in the plane formed by the matching of the first position-limiting part 1211 and the second position-limiting part 112, the developer is prevented from leaking through the gap where the first position-limiting part 1211 and the second position-limiting part 112 are matched, the efficiency of developer injection is improved, and meanwhile, the plurality of detachable first position-limiting parts 1211 are used for assembling with the rod body 121, which not only facilitates the manufacture of the developer replenishing device 100 and reduces the assembly difficulty, but also enables users to assemble different numbers of the first position-limiting parts 1211 with the rod body 121 according to the needs when using the developer replenishing device 100, so that the users can use according to the needs, and the flexibility of the developer replenishing device.

Referring to fig. 4, the second position-limiting portion 112 is a positioning hole formed at an end of the case 11, and the maximum outer diameter of the first position-limiting portion 1211 is greater than the maximum outer diameter of the second position-limiting portion 112.

Therefore, the second position-limiting portion 112 can limit the position of the first position-limiting portion 1211, so that the first position-limiting portion 1211 is located in the box body 11, and the developer between the first position-limiting portion 1211 and the box body 11 can be discharged through the through hole 115 under the driving of the pushing member 12, and the safety of the developer replenishing device 100 can be increased when the second position-limiting portion 112 is used to limit the first position-limiting portion 1211.

In the specific example shown in fig. 5, the receiving chamber q has a semicircular cross section, the push plate 122 has a semicircular shape, and both of the first discharge ports 111 are disposed near the partition 117 and the central axis of the case 11.

The accommodating cavities q are evenly distributed into two semicircular accommodating cavities q through the partition plate 117 arranged in the box body 11, and developers in different accommodating cavities q can be supplemented by different rod bodies 121, so that the developers are supplemented in a step shape, namely, a part of the developers is supplemented every time, and a multi-time supplementing form is adopted, so that the developers can be prevented from being leaked due to the fact that the developers are excessively supplemented when being supplemented.

Of course, the present invention is by no means limited to this, and the chamber q can be equally divided into four parts by providing two cross-shaped partition boards 117, or the chamber q can be equally divided by using more partition boards 117. If the accommodating chamber q is subdivided into a plurality of chambers, the developer can be more finely filled by providing a plurality of accommodating chambers q when being replenished, and the developer can be more finely filled by the lack of the developer, so that the developer replenishing apparatus 100 can be more efficiently used.

Like this, through letting baffle 117 form the chamber q that holds of mutual symmetry to the impeller 12 position that holds to be equipped with in the chamber q and first discharge port 111 position are all symmetrical about the central axis of box body 11, with the inside chamber q that holds of box body 11 equipartition and the part of intracavity and structure symmetry each other, thereby when making box body 11 internal processing become more convenient, can let be to be the structure that appears in pairs and obtain simplifying when processing, and then become simple when maintenance or replacement part.

Referring to fig. 5, the cartridge 11 includes a cylinder 113 and an end cap 114 connected to one end of the cylinder 113, the end cap 114 has a through hole 115 for the pusher 12 to pass through, the push plate 122 is located inside the end cap 114, and the end of the end cap 114 or the cylinder 113 opposite to the end cap 114 is provided with a filling port 116.

Therefore, the pushing plate 122 located inside the end cover 114 can scrape off the developer adhered to the wall of the accommodating cavity q in the box body 11, and the end cover 114 located outside the pushing plate 122 can ensure that the developer remained in the gap between the pushing plate 122 and the cylinder wall cannot be scattered from the end cover 114, thereby avoiding environmental pollution.

In the particular embodiment shown in fig. 6, the injection port 116 is located on the end cap 114, the push plate 122 has a through hole for injection, and the side of the push plate 122 facing the first discharge port 111 is provided with a valve plate (not shown) configured to close the through hole when the pushing member 12 moves toward the push-out position and to open the through hole when injecting. Like this, through establishing the valve block in sprue 116 below, let material accessible valve block get into and hold the chamber q in and avoided the material to pass through the valve block and follow sprue 116 and spill, the polluted environment.

As shown in fig. 1, the developer cover 20 includes: the chip 31 is provided with a first cover 22 or a second cover 23, and a third cover 24 for blocking the second discharge port 21, wherein the first cover 22 covers the cylinder 113, the second discharge port 21 is formed on the first cover 22, the second cover 23 is detachably connected with the first cover 22, the control switch 32 is arranged on the first cover 22 or the second cover 23, and the chip 31 is provided with the first cover 22 or the second cover 23.

Therefore, the first lid 22 covers the case, the discharge port is formed in the first lid 22, the end portion of the first lid 22 is formed as the discharge port, the second lid 23 is detachably connected to the first lid 22, and the third lid 24 is used to close the second discharge port 21. A control switch 32 is disposed on the second cover 23, the control switch 32 is adapted to be electrically connected to the chip 31, and the control switch 32 can be used to control the chip 31 to communicate or connect with the printer, so that the developer replenishing apparatus 100 can replenish the printer with developer. The third cover body 24 may be rotated to open or close the discharge port. When the developer replenishing apparatus 100 replenishes the printer with developer, the third cover 24 opens the discharge port by rotating by a predetermined angle. Of course, the third lid 24 may be rotated by an external force to open the discharge port, and the developer filling apparatus 100 may be reused by opening the developer lid 20 and filling the plurality of housing cavities q with the developer.

In the specific example shown in fig. 1 and 2, the first cover 22 includes: the first cover 221 and the first tube 222, the second cover 23 has the second cover 231 and the second tube 232, the second cover 231 is covered and buckled on the first cover 221, the first tube 222 penetrates out of the second tube 232, the side wall of the first cover 221 is provided with a switch mounting groove 2211, the side wall of the second cover 231 is provided with a switch mounting bracket 2311, the switch mounting bracket 2311 is inserted into the switch mounting groove 2211, and the control switch 32 is mounted between the switch mounting groove 2211 and the switch mounting bracket 2311.

The first cover 22 covers the cartridge 11, and the second cover 231 covers the outside of the first cover 221, so that the injection of the developer is guided by using a double-layer structure, thereby ensuring accurate and quality-guaranteed injection of the developer. Meanwhile, the first cover part 221 is provided with a switch mounting groove 2211 for fixing the control switch 32, and the switch mounting groove 2211 is matched with a switch mounting bracket 2311 arranged on the side wall of the second cover part 231 and supported by the auxiliary control switch 32, so that the switch 32 is mounted more simply, and the production efficiency is increased.

In some embodiments, the sidewall of the first tube part 222 is provided with a chip support table 2221, the sidewall of the second tube part 232 is provided with a chip mounting groove 2321, the chip 31 is mounted in the mounting groove and the back of the chip 31 is supported on the chip support table 2221.

Thus, the chip support table 2221 can support the chip 31, so that the chip 31 can be better fixed to the developer supply apparatus 100. Meanwhile, the chip 31 is mounted in the chip mounting groove 2321, and the chip 31 is fixed in position through the mounting groove, so that the chip 31 can be mounted conveniently by the chip mounting groove 2321, and the stability of the chip 31 in the developer replenishing device 100 is improved.

In one embodiment, the control assembly 30 further includes a first conductive plate 33 and a second conductive plate 34, the first conductive plate 33 and the second conductive plate 34 are fixed to at least one of the first cover 22 and the second cover 23, a first end of the first conductive plate 33 is electrically connected to the chip 31 and a second end of the first conductive plate 33 is opposite to the control switch 32, a first end of the second conductive plate 34 is electrically connected to the chip 31 and a second end of the second conductive plate 34 is matched with the second end of the first conductive plate 33, and the control switch 32 is movable to be inserted between the second end of the first conductive plate 33 and the second end of the second conductive plate 34 under a predetermined condition, so that the control chip 31 can send a supplement completion signal.

The control switch 32 is respectively contacted with the first conductive sheet 33 and the second conductive sheet 34, specifically, when the control switch 32 is in a closed state, the control switch 32 is contacted with the first conductive sheet 33 and is separated from the second conductive sheet 34, at the moment, the control switch 32 is in the closed state, at the moment, the control switch 32 transmits a closing signal to the chip 31, at the moment, the sealing cover is in a sealing state, so that the developer in the accommodating cavity q cannot be discharged through the first discharge port 111, and therefore, the developer can be prevented from spilling; when the developing box needs to inject the developer, the control switch 32 is moved to a state of contacting with the second conductive sheet 34, and when the control switch 32 contacts with the second conductive sheet 34, the control switch 32 is disconnected with the first conductive sheet 33, the control switch 32 is in an open state, at this time, the control switch 32 transmits an open signal to the chip 31, the sealing cover is in an open state, and the developer in the accommodating cavity q can be discharged through the first discharge port 111, so that the developer can be injected.

Therefore, when the first conductive sheet 33 and the second conductive sheet 34 are used to control the developing box of the control assembly 30, two conductive sheets can be used for feedback, that is, when the first conductive sheet 33 contacts the control switch 32, a signal is sent, and the second conductive sheet 34 does not contact the control switch 32, so that no signal is sent, so that when only the first conductive sheet 33 sends a signal, the control switch 32 is determined to be in a closed state, and when the control switch 32 needs to leave the first conductive sheet 33 and the second conductive sheet 34, the control switch 32 will respectively contact the first conductive sheet 33 and the second conductive sheet 34 in the moving process, so that both the first conductive sheet 33 and the second conductive sheet 34 send signals, so that the control switch 32 can be determined not to be in a completely opened state, and when the control switch 32 completely leaves the first conductive sheet 33, the signal of the first conductive sheet 33 stops sending, that the chip 31 only receives the signal of the second conductive sheet 34, so that it can be determined that the control switch 32 is in the open state. Therefore, the control assembly 30 formed by the first conductive sheet 33 and the second conductive sheet 34 can display the specific state of the control switch 32 in a feedback manner, so that the signal sent by the control switch 32 is more clear, and the use and closing of the developer replenishing apparatus 100 can be better controlled.

In one embodiment, the control switch 32 has a wedge 321, the first conductive sheet 33 has a movable spring 331, and the second conductive sheet 34 has a static spring 341, under a predetermined condition, the wedge 321 may be inserted between the movable spring 331 and the static spring 341 to move the movable spring 331 away from the static spring 341 and separate from the static spring 341. Thus, by controlling the opening and closing of the developer replenishing device 100 by the control switch 32, the developer in the developer replenishing device 100 can be protected by the box body 11 when not being injected, and can be timely opened when the developer needs to be replenished to the developing box, so that the developer replenishing device 100 can replenish the developer in the developing box.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A developer replenishing apparatus, comprising:

a developer cartridge, the developer cartridge comprising:

a box body, inject a plurality of chambeies that hold in the box body, the one end of box body has with a plurality of hold a plurality of first exhanst ports that the chamber one-to-one communicates, and

at least one pushing member, each pushing member slides relative to the cartridge body to move from an initial position to a plurality of pushing positions closer to the first outlet than the initial position in sequence;

a developer cover connected to the cartridge body and having a second discharge port communicating with the plurality of first discharge ports; and

the control assembly comprises a chip and a control switch electrically connected with the chip, and the control switch is used for controlling the connection or disconnection of the communication state of the chip and the printer.

2. The developer replenishing apparatus according to claim 1, wherein said urging member comprises a rod body and a push plate attached to an end of said rod body, said push plate being slidably fitted to a side wall of said accommodating chamber, said urging member being in positioning engagement with said cartridge body at each of said push-out positions.

3. The developer replenishing apparatus according to claim 2, wherein the pushing member further comprises at least first position-limiting portions, each of the first position-limiting portions is detachably mounted to a rod body, a hole of the cartridge body through which the rod body passes is formed with a second position-limiting portion, and the first position-limiting portions different at each of the pushing-out positions are respectively in positioning engagement with the second position-limiting portions.

4. The developer replenishing apparatus according to claim 3, wherein said second position-limiting portion is a positioning hole formed at an end of said cartridge body, and a maximum outer diameter of said first position-limiting portion is larger than a maximum outer diameter of said second position-limiting portion.

5. The developer replenishing apparatus according to claim 2, wherein a partition plate is provided in said accommodating chamber, said accommodating chamber has a semicircular cross section, said pushing plate has a semicircular shape, and both of said first discharge ports are provided near said partition plate and a central axis of said case body.

6. The developer replenishing apparatus according to any one of claims 2 to 5, wherein said cartridge body comprises a cylinder and an end cap attached to an end of said cylinder, said end cap having a through hole through which said pushing member passes, said end cap or an end of said cylinder opposite to said end cap being provided with a feed port.

7. The developer replenishing apparatus according to claim 6, wherein the injection port is provided on the end cap, the push plate has a passage hole for injection, a valve sheet is provided on a side of the push plate facing the first discharge port, the valve sheet being configured to close the passage hole when the pushing member moves toward the push-out position and to open the passage hole when injecting the developer.

8. The developer replenishing apparatus according to claim 7, wherein said developer cover comprises:

a first cover covering the cylinder, the second discharge port being formed in the first cover;

the second cover body is detachably connected with the first cover body, the control switch is arranged on the first cover body or the second cover body, and the chip is arranged on the first cover body or the second cover body; and

and the third cover body is used for blocking the second discharge port.

9. The developer replenishing apparatus according to claim 8, wherein said first cover body comprises: first lid and first pipe portion, the second lid has second lid and second pipe portion, the second lid cover detain in first lid just first pipe portion is worn out the second pipe portion, the lateral wall of first lid is equipped with the switch mounting groove, the lateral wall of second lid is equipped with the switch installing support, the switch installing support inserts in the switch mounting groove, control switch install in the switch mounting groove with between the switch installing support.

10. The developer replenishing apparatus according to claim 9, wherein a side wall of said first tube portion is provided with a chip supporting stage, a side wall of said second tube portion is provided with a chip mounting groove, said chip is mounted in said mounting groove and a back surface of said chip is supported on said chip supporting stage.

11. The developer replenishing apparatus according to claim 8, wherein the control member further comprises a first conductive sheet and a second conductive sheet, the first conductive sheet and the second conductive sheet being fixed to at least one of the first cover and the second cover, a first end of the first conductive sheet being electrically connected to the chip and a second end thereof being opposite to the control switch, a first end of the second conductive sheet being electrically connected to the chip and a second end thereof being matched with the second end of the first conductive sheet, the control switch being movable to be inserted between the second end of the first conductive sheet and the second end of the second conductive sheet under a predetermined condition to control the chip to send a replenishment completion signal.

12. The developer replenishing apparatus according to claim 11, wherein the control switch has a wedge head, the first conductive plate has a movable spring, the second conductive plate has a stationary spring, and the wedge head is insertable between the movable spring and the stationary spring under a predetermined condition to move the movable spring away from the stationary spring and separate from the stationary spring.

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