Developer Box

Abstract

The developer box provided by the present invention relates to the field of laser printing technology, and includes: a developer unit and a powder storage unit, the developer unit and the powder storage unit can be independently detachably connected, the developer unit includes a first drive unit, and the powder storage unit includes a second drive unit; the first drive unit is driven to operate by a first drive mechanism in the laser printer, and the second drive unit is driven to operate by a second drive mechanism in the laser printer. The developer box provided by the present invention operates independently of each other through the first drive unit and the second drive unit, while realizing the driving function, it also reduces the driving load of the developer unit and the powder storage unit, thereby simplifying the driving structure of the developer box and reducing the torque of the driving system of the developer box.

Description

Technical Field

[0001] The invention relates to the technical field of laser printing, and in particular to a developing box. Background Art

[0002] An image forming device is a device that forms an image on a recording material by the imaging principle. The image forming device generally includes a developing box that is detachably mounted in the main body of the image forming device. The developing box generally includes a photosensitive drum, a powder feeding roller, a developing roller, and a toner stirring element located in a powder bin.

[0003] In the related art, the driving of the developing box is achieved by driving the developing unit and the powder storage unit to move simultaneously through the driving mechanism in the laser printer.

[0004] However, the driving mechanism of the developing box in the related art has the problems of complex structure and large torque. Summary of the invention

[0005] The present invention provides a developing box to solve the problems of complex structure and large torque of the driving mechanism of the developing box in the related art.

[0006] The present invention provides a developing box, comprising: a developing unit and a powder storage unit, wherein the developing unit and the powder storage unit can be independently detachably connected.

[0007] The developing unit includes a first driving unit, and the powder storage unit includes a second driving unit;

[0008] The first driving unit is driven by a first driving mechanism in the laser printer, and the second driving unit is driven by a second driving mechanism in the laser printer.

[0009] The first driving unit includes a photosensitive drum driving gear, a developing roller driving gear, a powder feeding roller driving gear and a first stirring unit driving gear. The photosensitive drum driving gear is meshed with the developing roller driving gear, the developing roller driving gear is meshed with the powder feeding roller driving gear, the developing roller driving gear is meshed with the first stirring unit driving gear, and the photosensitive drum driving gear is meshed with the first driving mechanism in the laser printer.

[0010] The second driving unit includes a first gear, a second gear and a third gear, the first gear is meshed with the second driving mechanism in the laser printer, the first gear is connected with the second gear through a synchronous belt, and the second gear is meshed with the third gear.

[0011] Optionally, the developing unit further includes a powder bin portion and a waste powder bin portion.

[0012] The powder bin part comprises a powder bin frame, a first powder bin, a developing roller, a powder feeding roller and a powder discharge knife, and a first stirring unit is installed in the first powder bin.

[0013] The waste powder bin part includes a waste powder bin frame and a first waste powder bin, and a waste powder outlet mechanism is arranged in the first waste powder bin.

[0014] Optionally, a first intermediate gear is provided between the photosensitive drum driving gear and the developing roller driving gear, and the photosensitive drum driving gear drives the developing roller driving gear to rotate via the first intermediate gear.

[0015] A second intermediate gear is provided between the developing roller driving gear and the first stirring unit driving gear, and the developing roller driving gear rotates with the first stirring unit driving gear via the second intermediate gear.

[0016] Optionally, the powder storage unit further includes a first frame, a second frame and a third frame.

[0017] The first frame is located above the second frame, the third frame is located between the first frame and the second frame, and the first frame and the second frame are divided into a second toner bin and a second waste toner bin by the third frame.

[0018] A powder feeding mechanism is arranged in the second powder bin.

[0019] Optionally, a third intermediate gear is provided between the third gear and the driving gear of the waste toner exporting mechanism, and the driving gear of the waste toner exporting mechanism is meshed with the third gear through the third intermediate gear.

[0020] Optionally, a powder feeding mechanism is provided in the second powder bin.

[0021] The powder feeding mechanism includes a first powder feeding member and a second powder feeding member, the first powder feeding member is used to transfer the carbon powder at one end of the second powder bin away from the first powder bin to the second powder feeding member, and the second powder feeding member is used to transfer the carbon powder to the other end of the second powder bin close to the first powder bin.

[0022] Optionally, the first gear is connected to the first powder feeding component, and the first gear drives the first powder feeding component to rotate.

[0023] The second gear is connected to the second powder feeding member, and the second gear drives the second powder feeding member to rotate.

[0024] Optionally, the powder feeding mechanism further includes a third powder feeding member, and the third powder feeding member is located between the second powder feeding member and the other end of the second powder bin close to the first powder bin.

[0025] Optionally, the third gear is connected to the third powder feeding component, and the third gear drives the third powder feeding component to rotate.

[0026] Optionally, a handle is provided on the powder storage unit, and the handle is used to grab the developing box.

[0027] The developing box provided by the present invention comprises: a developing unit and a powder storage unit, the developing unit and the powder storage unit can be independently detachably connected, the developing unit comprises a first driving unit, and the powder storage unit comprises a second driving unit; the first driving unit is driven and operated by a first driving mechanism in a laser printer, and the second driving unit is driven and operated by a second driving mechanism in the laser printer; the first driving unit comprises a photosensitive drum driving gear, a developing roller driving gear, a powder feeding roller driving gear and a first stirring unit driving gear, the photosensitive drum driving gear is meshed with the developing roller driving gear, the developing roller driving gear is meshed with the powder feeding roller driving gear, the developing roller driving gear is meshed with the first stirring unit driving gear, and the photosensitive drum driving gear is meshed with the first driving mechanism in the laser printer; the second driving unit comprises a first gear, a second gear and a third gear, the first gear is meshed with the second driving mechanism in the laser printer, the first gear is connected to the second gear through a synchronous belt, and the second gear is meshed with the third gear. The developing box provided by the present invention operates independently of each other through the first driving unit and the second driving unit, while realizing the driving function, it also reduces the driving load of the developing unit and the powder storage unit, thereby simplifying the developing box driving structure and reducing the torque of the driving system of the developing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 A three-dimensional view of a developing box provided by the present invention;

[0030] Figure 2 is a cross-sectional view of a developing cartridge of the present invention;

[0031] Figure 3 It is a schematic diagram of the three-dimensional structure of the powder storage unit of the developer cartridge of the present invention;

[0032] Figure 4 It is a schematic diagram of the exploded structure of the powder storage unit of the developer cartridge of the present invention;

[0033] Figure 5 is a side view of a developing cartridge of the present invention;

[0034] Figure 6 This is a schematic diagram of the structure of the developing box of the present invention using another type of handle structure.

[0035] Description of reference numerals:

[0036] 1-developer box;

[0037] 10-developing unit;

[0038] 11- Powder bin part;

[0039] 111-powder bin frame;

[0040] 112-first powder bin;

[0041] 113-developing roller;

[0042] 114- powder feeding roller;

[0043] 115-powder knife;

[0044] 116-first stirring unit;

[0045] 12-waste toner bin part;

[0046] 121-waste toner bin frame;

[0047] 122-first waste toner bin;

[0048] 123-photosensitive drum;

[0049] 124-charging roller;

[0050] 125-cleaning scraper;

[0051] 126-waste powder export mechanism;

[0052] 20- powder storage unit;

[0053] 21-First frame;

[0054] 22-Second frame;

[0055] 23-third frame;

[0056] 231-ton powder delivery outlet;

[0057] 232-arc segment;

[0058] 24- second powder bin;

[0059] 25-second waste toner bin;

[0060] 26- docking piece;

[0061] 27- communication port;

[0062] 28- powder feeding mechanism;

[0063] 281-first powder feeding part;

[0064] 282-second powder feeding part;

[0065] 283-the third powder feeding part;

[0066] 2-Connection part;

[0067] 40-a first driving unit;

[0068] 41-photosensitive drum driving gear;

[0069] 42-developing roller driving gear;

[0070] 43-powder feeding roller driving gear;

[0071] 44- first stirring unit driving gear;

[0072] 45-first intermediate gear;

[0073] 46 - second intermediate gear;

[0074] 47-driving gear;

[0075] 48 - third intermediate gear;

[0076] 50- second driving unit;

[0077] 51- first gear;

[0078] 52 - second gear;

[0079] 53- third gear;

[0080] 54- Timing belt. DETAILED DESCRIPTION

[0081] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0082] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0083] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0084] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0085] In the above description, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0086] An image forming device is a device that forms an image on a recording material by the principle of imaging. The image forming device generally includes a developing cartridge that is detachably mounted in the main body of the image forming device. In the related art, the driving mechanism of the developing cartridge drives the developing unit and the powder storage unit to move simultaneously through the driving mechanism in the laser printer. However, the driving mechanism of the developing cartridge in the related art has the problems of complex structure and large torque.

[0087] In order to solve the above problems, the developing box provided by the present invention operates independently of each other through the first driving unit and the second driving unit. While realizing the driving function, it also reduces the driving load of the developing unit and the powder storage unit, thereby simplifying the developing box driving structure and reducing the torque of the driving system of the developing box.

[0088] The developing box provided by the invention is described in detail below in conjunction with specific embodiments.

[0089] Figure 1 A three-dimensional view of a developing box provided by the present invention; Figure 2 is a cross-sectional view of a developing cartridge of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the powder storage unit of the developer cartridge of the present invention; Figure 4 It is a schematic diagram of the exploded structure of the powder storage unit of the developer cartridge of the present invention; Figure 5 is a side view of a developing cartridge of the present invention; Figure 6 This is a schematic diagram of the structure of the developing box of the present invention using another type of handle structure.

[0090] like Figure 1 As shown, the present invention provides a developing box, which includes a developing unit 10 and a powder storage unit 20, and the developing unit 10 and the powder storage unit 20 can be independently detachably connected.

[0091] The developing unit 10 and the powder storage unit 20 are connected via a connecting portion 2 .

[0092] In an optional embodiment, the connecting portion 2 may be a bolt. The developing unit 10 and the powder storage unit 20 have two sets of threaded holes for connecting and matching, and the two sets of threaded holes are connected together by two bolts, so that the developing unit 10 and the powder storage unit 20 can be independently detachably connected. In other implementations, the developing unit 10 and the powder storage unit 20 can also be connected by a buckle, a buckle is provided on the powder storage unit 20, and a slot is provided on the developing unit 10, and the buckle is clamped in the slot, so that the developing unit 10 and the powder storage unit 20 can be independently detachably connected.

[0093] like Figures 2 to 4As shown, the developing unit 10 includes: a powder bin part 11 and a waste powder bin part 12. The powder bin part 11 includes: a powder bin frame 111, a first powder bin 112 storing toner, a developing roller 113, a powder feeding roller 114 and a powder discharge knife 115. A first stirring unit 116 is installed in the first powder bin 112. A toner supply port communicating with the first powder bin 112 is provided on the upper surface of the powder bin frame 11. The waste powder bin part 12 includes: a waste powder bin frame 121, a first waste powder bin 122 for collecting waste powder, a photosensitive drum 123, a charging roller 124 and a cleaning blade 125. A waste powder outlet mechanism 126 is provided in the first waste powder bin 122. A waste powder outlet communicating with the first waste powder bin 122 is provided on the waste powder bin frame 121.

[0094] Specifically, the powder bin frame 111 encloses a first powder bin 112 for storing toner, and the powder storage unit 20 replenishes toner for the first powder bin 112 through a toner replenishing port. The toner in the first powder bin 112 is stirred by a first stirring unit 116, so that the powder feeding roller 114 carries the toner and delivers the toner to the developing roller 113, and then the developing roller 113 is charged after friction with the powder discharge knife 115, and absorbs the toner. The waste powder bin frame 121 encloses a first waste powder bin 122 for collecting waste powder, and the toner absorbed by the developing roller 113 is transferred to the photosensitive drum 123 through the potential difference between the developing roller 113 and the photosensitive drum 123. After transfer, the cleaning scraper 125 is in linear contact with the photosensitive drum 123 to clean the toner that has not been completely transferred on the surface of the photosensitive drum 123, that is, the waste powder. The cleaned waste powder is stored in the first waste powder bin 122, and finally guided to the powder storage unit 20 through the waste powder outlet mechanism 126.

[0095] The charging roller 124 is used to charge the surface of the photosensitive drum 123 with a uniform charge, so that the photosensitive drum 123 absorbs carbon powder; the waste toner extraction mechanism 126 can adopt a structure in which a stirring shaft is attached to blades.

[0096] like Figures 2 to 4 As shown, the powder storage unit 20 includes: a first frame 21, a second frame 22 and a third frame 23. The first frame 21 is located above the second frame 22, the third frame 23 is located between the first frame 21 and the second frame 22, and the first frame 21 and the second frame 22 are divided into a second powder bin 24 and a second waste powder bin 25 by the third frame 23.

[0097] In order to replenish the toner in the first powder bin 112 , a toner delivery outlet 231 connected to the second powder bin 24 is provided at the front end of the third frame 23 ; in order to discharge the waste powder in the first waste powder bin 122 , a connecting port 27 is provided at the front end of the second frame 22 .

[0098] Specifically, the first frame 21, the second frame 22 and the third frame 23 can be formed in one piece. In other implementations, the first frame 21, the second frame 22 and the third frame 23 can also be separately provided, and the first frame 21, the second frame 22 and the third frame 23 can be connected by welding, bonding, etc.

[0099] Optionally, in order to improve the toner replenishment efficiency of the first powder bin 11 , there may be multiple delivery outlets 231 , and the multiple delivery outlets 231 are arranged at the front end of the third frame 23 .

[0100] In an optional embodiment, a carbon powder delivery outlet 231 connected to the second powder bin 24 is provided on both sides of the front end of the third frame 23, and docking pieces 26 are provided at both ends of the bottom of the powder storage unit 20. The upper end of the docking piece 26 is docked with the carbon powder delivery outlet 231 of the second powder bin 24, and the lower end of the docking piece 26 is docked with the carbon powder replenishing port of the first powder bin 112, so as to realize the connection between the first powder bin 112 and the second powder bin 24, so that the second powder bin 24 can replenish the carbon powder of the first powder bin 112; a connecting port 27 is provided at the front end of the second frame 22, and the connecting port 27 is docked with the waste powder outlet of the first waste powder bin 122, so as to realize the connection between the first waste powder bin 122 and the second waste powder bin 25, so that the waste powder of the first waste powder bin 122 can be exported to the second waste powder bin 25.

[0101] In other implementations, in order to enable the second powder bin 24 to replenish the first powder bin 112 with carbon powder, carbon powder delivery outlets 231 connected to the second powder bin 24 are provided on both sides of the front end of the third frame 23, and a docking piece 26 is provided at the top of the carbon powder replenishing port of the first powder bin 112. The upper end of the docking piece 26 is docked with the carbon powder delivery outlet 231 of the second powder bin 24, and the lower end of the docking piece 26 is docked with the carbon powder replenishing port of the first powder bin 112, so as to achieve the connection between the first powder bin 112 and the second powder bin 24, thereby enabling the second powder bin 24 to replenish the carbon powder of the first powder bin 112; a connecting port 27 is provided at the front end of the second frame 22, and the connecting port 27 is docked with the waste powder outlet of the first waste powder bin 122, so as to achieve the connection between the first waste powder bin 122 and the second waste powder bin 25, so that the waste powder of the first waste powder bin 122 can be exported to the second waste powder bin 25.

[0102] The docking piece 26 may be a conical tube, a square tube, a circular tube, etc., which will not be specifically configured here.

[0103] Optionally, the rear end of the third frame 23 may be configured as a concave structure.

[0104] In order to increase the capacity of the second powder bin 24 , a concave structure may be provided at the rear end of the third frame 23 .

[0105] In an optional embodiment, the concave structure may be an arc segment 232 , and the arc segment 232 faces downward, thereby increasing the capacity of the second powder bin 24 .

[0106] In other implementations, the concave structure may be a circular segment, with the circular segment facing downward.

[0107] Optionally, a powder delivery mechanism 28 is provided in the second powder bin 24 , responsible for delivering the carbon powder in the second powder bin 24 to the carbon powder delivery outlet 231 .

[0108] Among them, in order to improve the efficiency of conveying the carbon powder in the second powder bin 24 to the carbon powder conveying outlet 231, a powder conveying mechanism 28 is provided in the second powder bin 24, which is responsible for conveying the carbon powder in the second powder bin 24 to the carbon powder conveying outlet 231, thereby improving the efficiency of conveying the carbon powder in the second powder bin 24 to the carbon powder conveying outlet 231, and further improving the efficiency of replenishing the carbon powder in the first powder bin 112.

[0109] Specifically, the powder feeding mechanism 28 may be implemented in the following manners:

[0110] In an optional embodiment, the powder feeding mechanism 28 includes: a first powder feeding member 281 and a second powder feeding member 282. The first powder feeding member 281 transfers the carbon powder at the rear end of the second powder bin 24 to the second powder feeding member 282 along direction A. The second powder feeding member 282 continues to transfer the carbon powder forward along direction A to the docking member 26. The carbon powder enters the first powder bin 112 from the carbon powder delivery outlet 231 via the docking member 26.

[0111] Among them, the first powder feeding member 281 adopts a structure in which a stirring shaft is attached to blades; the second powder feeding member 282 adopts a structure in which a rotating shaft drives a powder feeding belt to rotate, and a conveying plate is provided on the powder feeding belt, so that the second powder feeding member 282 can stir the carbon powder in the second powder bin 24, and then can convey the carbon powder in the second powder bin 24 to the carbon powder conveying outlet 231.

[0112] It should be noted that the blades on the first powder feeding member 281 can transfer the carbon powder stored in the arc segment 232 to the second powder feeding member 282 .

[0113] In another optional embodiment, the powder feeding mechanism 28 includes: a first powder feeding member 281, a second powder feeding member 282 and a third powder feeding member 283. The first powder feeding member 281 transfers the carbon powder at the rear end of the second powder bin 24 to the second powder feeding member 282 along direction A. The second powder feeding member 282 continues to transfer forward along direction A to the third powder feeding member 283. The third powder feeding member 283 transfers the carbon powder to the docking member 26. The carbon powder enters the first powder bin 112 from the carbon powder delivery outlet 231 via the docking member 26.

[0114] Among them, the first powder feeding member 281 adopts a structure in which a stirring shaft is attached to blades; the second powder feeding member 282 adopts a structure in which a rotating shaft drives a powder feeding belt to rotate, and a conveying plate is provided on the powder feeding belt, so that the second powder feeding member 282 can stir the carbon powder in the second powder bin 24, and then convey the carbon powder in the second powder bin 24 to the carbon powder conveying outlet 231; the third powder feeding member 283 is located at the front end of the second powder feeding member 282 and close to the carbon powder conveying outlet 231, and the third powder feeding member 283 adopts a screw structure.

[0115] It should be noted that the front end of the second powder feeding member 282 is the end of the second powder feeding member 282 close to the toner delivery outlet 231. Direction A is the direction from the other end of the second powder feeding member 282 away from the toner delivery outlet 231 to the end of the second powder feeding member 282 close to the toner delivery outlet 231.

[0116] Optionally, the second waste toner bin 25 may also be provided with a waste toner conveying mechanism responsible for conveying the waste toner at the entrance of the second waste toner bin 25 to the rear end.

[0117] Among them, in order to prevent the waste powder in the second waste powder bin 25 from accumulating at the entrance of the second waste powder bin 25, a waste powder conveying mechanism can also be set in the second waste powder bin 25, which is responsible for conveying the waste powder at the entrance of the second waste powder bin 25 to the rear end, thereby preventing the waste powder in the second waste powder bin 25 from accumulating at the entrance of the second waste powder bin 25.

[0118] Specifically, the waste powder conveying mechanism can adopt a structure in which a rotating shaft drives a powder feeding belt to rotate, and a conveying plate is provided on the powder feeding belt, so that the waste powder conveying mechanism can stir the waste powder in the second waste powder bin 25, and then the waste powder at the entrance of the second waste powder bin 25 can be conveyed to the rear end along the opposite direction of A.

[0119] It should be noted that the rear end of the second waste toner bin 25 is an end of the second waste toner bin 25 away from the communication port 27 .

[0120] Optionally, the developing unit 1 further includes a third powder bin 30 .

[0121] Among them, Figure 1 and 4 As shown, in order to further improve the powder supply capacity of the powder storage unit 20 , a third powder bin 30 may be further provided on one side of the powder storage unit 20 , and the third powder bin 30 is connected to the second powder bin 24 .

[0122] Specifically, the third powder bin 30 and the powder storage unit 20 can be integrally formed. In other implementations, the third powder bin 30 and the powder storage unit 20 can also be separately provided, and the third powder bin 30 and the powder storage unit 20 can be connected by welding, bonding, etc.

[0123] Furthermore, the possible powder delivery method of the third powder bin 30 is:

[0124] In an optional embodiment, the powder feeding method of the third powder bin 30 can be that the bottom of the third powder bin 30 is set to an inclined structure so that the carbon powder therein can flow freely to the second powder bin 24, thereby realizing the transportation of the carbon powder in the third powder bin 30 to the second powder bin 24.

[0125] In another optional embodiment, the powder feeding method of the third powder bin 30 can be that a threaded portion can be added to one end of the stirring shaft of the first powder feeding member 281, and the threaded portion extends deep into the third powder bin 30, so that the carbon powder in the third powder bin 30 is stirred and transferred to the second powder bin 24 through the rotation of the stirring shaft of the first powder feeding member 281, thereby realizing the transportation of the carbon powder in the third powder bin 30 to the second powder bin 24.

[0126] like Figure 1 and Figure 5 As shown, the developing box 1 further includes a first driving unit 40 and a second driving unit 50 . The first driving unit 40 is located on the developing unit 10 , and the second driving unit 50 is located on the powder storage unit 20 .

[0127] The first driving unit 40 includes a photosensitive drum driving gear 41, a developing roller driving gear 42, a powder feeding roller driving gear 43 and a first stirring unit driving gear 44. The photosensitive drum driving gear 41 drives the developing roller driving gear 42 to rotate, and the developing roller driving gear 42 drives the powder feeding roller driving gear 43 and the first stirring unit driving gear 44 to rotate. The photosensitive drum driving gear 41 is driven to rotate by a first driving mechanism in the laser printer. The second driving unit 50 includes a first gear 51, a second gear 52 and a third gear 53. The first gear 51 is driven to rotate by a second driving mechanism in the laser printer. The first gear 51 drives the second gear 52 to rotate through a synchronous belt 54, and the second gear 52 is meshed with the third gear 53.

[0128] Specifically, the photosensitive drum drive gear 41 is fixed on the shaft of the photosensitive drum 123, and the photosensitive drum drive gear 41 can drive the photosensitive drum 123 to rotate; the developing roller drive gear 42 is fixed on the shaft of the developing roller 113, and the developing roller drive gear 42 can drive the developing roller 113 to rotate; the powder feeding roller drive gear 43 is fixed on the shaft of the powder feeding roller 114, and the powder feeding roller drive gear 432 can drive the powder roller 114 to rotate; the first stirring unit drive gear 44 is fixed on the shaft of the first stirring unit 116, and the first stirring unit drive gear 44 can drive the first stirring unit 116 to rotate; the first gear 51 is fixed on the shaft of the first powder feeding component 281, and the first gear 51 can drive the first powder feeding component 281 to rotate; the second gear 52 is fixed on the shaft of the second powder feeding component 282, and the second gear 52 can drive the second powder feeding component 282 to rotate.

[0129] Furthermore, the photosensitive drum driving gear 41 is driven to rotate by the first driving mechanism in the laser printer, and then the photosensitive drum driving gear 41 drives the developing roller driving gear 42 to rotate, and the developing roller driving gear 42 drives the powder feeding roller driving gear 43 and the first stirring unit driving gear 44 to rotate, so that the toner in the first powder bin 112 is stirred by the first stirring unit 116, so that the powder feeding roller 114 carries the toner and sends the toner to the developing roller 113, and then the developing roller 113 is charged after friction with the powder discharge knife 115, and absorbs the toner, and the toner absorbed by the developing roller 113 is transferred to the photosensitive drum 123 through the potential difference between the developing roller 113 and the photosensitive drum 123; the first gear 51 is driven by The second driving mechanism in the laser printer drives to rotate, the first gear 51 drives the second gear 52 to rotate through the synchronous belt 54, the second gear 52 drives the third gear 53 to rotate, and the third gear 53 drives the driving gear 47 to rotate, so that the first powder feeding member 281 transfers the toner at the rear end in the second powder bin 24 to the second powder feeding member 282 along the A direction, and the second powder feeding member 282 continues to convey forward along the A direction, and the toner enters the first powder bin 112 from the toner conveying outlet 231 via the docking member 26, thereby improving the efficiency of conveying the toner in the second powder bin 24 to the toner conveying outlet 231, and then improving the efficiency of replenishing the toner in the first powder bin 112.

[0130] The developing box 1 provided by the present invention operates independently of each other through the first driving unit 40 and the second driving unit 50. While realizing the driving function, it also reduces the driving load of the developing unit 10 and the powder storage unit 20, thereby simplifying the driving structure of the developing box 1 and reducing the torque of the driving system of the developing box 1.

[0131] Optionally, the third gear 53 is connected to the third powder feeding member 283, and the third gear 53 drives the third powder feeding member 283 to rotate.

[0132] Specifically, the third gear 53 is fixed on the shaft of the third powder feeding member 283, and the third gear 53 can drive the third powder feeding member 283 to rotate. The third powder feeding member 283 transfers the carbon powder delivered by the second powder feeding member 282 into the first powder bin 112 via the docking member 26, thereby further improving the efficiency of conveying the carbon powder in the second powder bin 24 to the carbon powder conveying outlet 231, and further improving the efficiency of replenishing the carbon powder in the first powder bin 112.

[0133] Optionally, the driving gear 47 of the waste toner outlet mechanism 126 meshes with the third gear 53 .

[0134] Specifically, the driving gear 47 is fixed on the shaft of the waste toner exporting mechanism 126 , and the driving gear 47 can drive the exporting mechanism 126 to rotate, so that the waste toner in the first waste toner bin 122 can be exported to the second waste toner bin 25 .

[0135] Optionally, a first intermediate gear 45 is provided between the photosensitive drum driving gear 41 and the developing roller driving gear 42 .

[0136] In order to improve the stability of the operation between the photosensitive drum driving gear 41 and the developing roller driving gear 42 , a first intermediate gear 45 is provided between the photosensitive drum driving gear 41 and the developing roller driving gear 42 .

[0137] Specifically, the photosensitive drum driving gear 41 drives the developing roller driving gear 42 to rotate through the first intermediate gear 45, so that the toner adsorbed by the developing roller 113 is transferred to the photosensitive drum 123 through the potential difference between the developing roller 113 and the photosensitive drum 123, thereby improving the smoothness of the operation between the photosensitive drum driving gear 41 and the developing roller driving gear 42, and further improving the smoothness and reliability of the operation of the developing box 1.

[0138] Optionally, a second intermediate gear 46 is provided between the developing roller driving gear 42 and the first stirring unit driving gear 44 .

[0139] In order to improve the stability of the operation between the developing roller driving gear 42 and the first stirring unit driving gear 44 , a second intermediate gear 46 is provided between the developing roller driving gear 42 and the first stirring unit driving gear 44 .

[0140] Specifically, the developing roller driving gear 42 drives the first stirring unit driving gear 44 to rotate through the second intermediate gear 46, so that the toner in the first powder bin 112 is stirred by the first stirring unit 116, so that the powder feeding roller 114 carries the toner and sends the toner to the developing roller 113, thereby improving the smoothness of the operation between the developing roller driving gear 42 and the first stirring unit driving gear 44, and further improving the smoothness and reliability of the operation of the developing box 1.

[0141] Optionally, a third intermediate gear 48 is provided between the driving gear 47 and the third gear 53 of the waste toner discharge mechanism 126 .

[0142] In order to improve the running stability between the driving gear 47 and the third gear 53, a third intermediate gear 48 is provided between the driving gear 47 and the third gear 53.

[0143] Specifically, the driving gear 47 of the waste powder export mechanism 126 is meshed with the third gear 53 through the third intermediate gear 48, and the third gear 53 drives the driving gear 47 to rotate through the third intermediate gear 48, so that the waste powder in the first waste powder bin 122 can be exported to the second waste powder bin 25, thereby improving the smoothness of the operation between the driving gear 47 and the third gear 53, and further improving the smoothness and reliability of the operation of the developing box 1.

[0144] Optionally, a handle 60 is provided on the powder storage unit 20 , and the handle 60 is used to grab the developing box 1 .

[0145] In order to facilitate the grasping of the developing box 1 , a handle 60 is provided on the developing box 1 . The handle 60 is located at the top of the developing box 1 , and the handle 60 is mounted on the first frame 21 .

[0146] Specifically, Figure 1 As shown, the handle 60 can be made of a soft material, such as rubber. Figure 6 As shown, the handle 60 may also be an injection molded structure.

[0147] Furthermore, when the handle 60 is in a non-grasping state, the handle 60 fits against the first frame 21 , thereby reducing the space occupied by the developer box 1 ; when the handle 60 is in a grasping state, the handle 60 is separated from the first frame 21 , thereby facilitating grasping of the developer box 1 .

[0148] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A developing box, characterized in that: include: A developing unit and a powder storage unit, wherein the developing unit and the powder storage unit can be independently detachably connected; The developing unit includes a first driving unit, and the powder storage unit includes a second driving unit; The first driving unit is driven by a first driving mechanism in the laser printer, and the second driving unit is driven by a second driving mechanism in the laser printer; The first driving unit comprises a photosensitive drum driving gear, a developing roller driving gear, a powder feeding roller driving gear and a first stirring unit driving gear, the photosensitive drum driving gear meshes with the developing roller driving gear, the developing roller driving gear meshes with the powder feeding roller driving gear, the developing roller driving gear meshes with the first stirring unit driving gear, and the photosensitive drum driving gear meshes with the first driving mechanism in the laser printer; The second driving unit comprises a first gear, a second gear and a third gear, the first gear is meshed with the second driving mechanism in the laser printer, the first gear is connected with the second gear through a synchronous belt, and the second gear is meshed with the third gear; The powder storage unit also includes a first frame, a second frame and a third frame; The first frame is located above the second frame, the third frame is located between the first frame and the second frame, and the first frame and the second frame are divided into a second powder bin and a second waste powder bin by the third frame; a powder feeding mechanism is provided in the second powder bin.

2. The developing cartridge according to claim 1, characterized in that: The developing unit also includes a powder bin portion and a waste powder bin portion; The powder bin part includes a powder bin frame, a first powder bin, a developing roller, a powder feeding roller and a powder discharge knife, and a first stirring unit is installed in the first powder bin; The waste powder bin part includes a waste powder bin frame and a first waste powder bin, and a waste powder outlet mechanism is arranged in the first waste powder bin.

3. The developing cartridge according to claim 2, characterized in that: A first intermediate gear is arranged between the photosensitive drum driving gear and the developing roller driving gear, and the photosensitive drum driving gear drives the developing roller driving gear to rotate through the first intermediate gear; A second intermediate gear is provided between the developing roller driving gear and the first stirring unit driving gear, and the developing roller driving gear rotates with the first stirring unit driving gear via the second intermediate gear.

4. The developing cartridge according to claim 3, characterized in that: A third intermediate gear is provided between the third gear and the driving gear of the waste toner exporting mechanism, and the driving gear of the waste toner exporting mechanism is meshed with the third gear through the third intermediate gear.

5. The developing cartridge according to claim 4, characterized in that: A powder feeding mechanism is provided in the second powder bin; The powder feeding mechanism includes a first powder feeding member and a second powder feeding member, the first powder feeding member is used to transfer the carbon powder at one end of the second powder bin away from the first powder bin to the second powder feeding member, and the second powder feeding member is used to transfer the carbon powder to the other end of the second powder bin close to the first powder bin.

6. The developing cartridge according to claim 5, characterized in that: The first gear is connected to the first powder feeding component, and the first gear drives the first powder feeding component to rotate; The second gear is connected to the second powder feeding component, and the second gear drives the second powder feeding component to rotate.

7. The developing cartridge according to claim 6, wherein: The powder feeding mechanism further includes a third powder feeding member, and the third powder feeding member is located between the second powder feeding member and the other end of the second powder bin close to the first powder bin.

8. The developing cartridge according to claim 7, wherein: The third gear is connected to the third powder feeding component, and the third gear drives the third powder feeding component to rotate.

9. The developing cartridge according to claim 1, wherein: The powder storage unit is provided with a handle, and the handle is used to grab the developing box.

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