CN219916183U - Carbon powder cartridge with high carbon powder utilization rate - Google Patents

Abstract

The utility model relates to a carbon powder cartridge with high carbon powder utilization rate, and belongs to the technical field of printing consumables. The toner cartridge comprises a rotating rod, a scraping plate and crushing teeth, wherein the rotating rod is axially connected to the inner wall of the toner cartridge, the scraping plate is arranged on the side wall of the rotating rod to scrape the inner wall of the toner cartridge, and the crushing teeth are connected to the side wall of the scraping plate; the rotating rod, the photosensitive drum and the developing roller are in transmission connection through a transmission component. Through setting up pivoted scraper blade and scraping the toner cartridge inner wall in the toner cartridge, connect a plurality of broken teeth on the scraper blade and carry out the breakage to cubic toner, scrape the toner that will not use down, the magnet has been at developing roller both ends coupling simultaneously, the coil is established to the magnet overcoat, through converting mechanical energy into the electric energy, the toner waste that does not have the power supply to cause when having avoided developing roller idle running to reduce the production of waste powder, improved the utilization ratio of toner, reduced use cost.

Description

Carbon powder cartridge with high carbon powder utilization rate

Technical Field

The utility model belongs to the technical field of printing consumables, and particularly relates to a carbon powder cartridge with high carbon powder utilization rate.

Background

A laser printer is an apparatus for forming an image on an image forming medium such as paper by using an electrophotographic principle through at least processes of charging, exposing, developing, transferring, fixing, and cleaning. In the prior art, a waste toner hopper containing a photosensitive drum, a conductive roller and a cleaning scraper is usually arranged as a relatively independent component, and is connected with a toner hopper containing a developing roller, a toner outlet knife and a toner through pins. The toner remaining on the surface of the photosensitive drum after transfer is scraped off by a cleaning blade and stored in a waste toner hopper. When the carbon powder in the carbon powder bin is used up, the waste powder stored in the waste powder bin is discarded together with the whole powder box, so that certain waste is caused, and the environment protection and energy saving are not facilitated. At present, the main reasons for the waste powder generated by the laser printer are that (1) when the laser printer starts to operate, the developing roller generates idle running without power supply. When the printer is started, the induction drum rotates in advance, no power is supplied to the developing roller by the printer, and at the moment, the idle period without voltage control appears on the developing roller. (2) When the laser printer stops, the developing roller also runs idle without power supply. Before the printing operation is finished, the power supply on the developing roller is stopped in advance, the induction drum continuously rotates, and at the moment, the idle period without voltage control appears on the developing roller. In summary, when a print job is executed, two idle periods without power supply appear on the developing roller, and the two idle periods are the main reasons for generating waste powder, so that waste of carbon powder is caused, and the utilization rate of the carbon powder is reduced.

The toner cartridge, as a developing and shaping device of a laser copier or a laser printer, is an important step in the working process of the toner cartridge, in which the toner in the toner cartridge is lifted to a developing cartridge opening so as to be transferred to the surface of a photosensitive drum with an electrostatic latent image for development. When the toner cartridge is used in the final stage, the toner in the toner cartridge is basically exhausted, the manuscript or the picture can be shallow or the manuscript or the picture is incomplete, and the like, and at the moment, a user can discard the toner cartridge or give the toner cartridge to a recycling company for processing. However, in fact, when the above phenomenon occurs, the toner cartridge still contains the unused toner in the toner hopper, and the unused toner is found to have 10-80 g or more by comprehensive knowledge and actual weighing, so that the unused toner is a huge resource waste when directly discarded or recycled, and the residual toner also causes serious harm to the environment. Patent document CN202022704877.2 discloses a toner cartridge with high toner utilization rate, but only cleans and recovers magnetic toner which is easy to be adsorbed, and the toner is adsorbed by a magnetic ring, so that the subsequent pulling of the toner from the magnetic ring is troublesome, and the non-magnetic toner cannot be recovered.

Disclosure of Invention

The utility model aims to provide a carbon powder cartridge with high carbon powder utilization rate, which is used for solving the problems of resource waste and cost increase caused by low carbon powder utilization rate in the carbon powder cartridge in the prior art.

The aim of the utility model can be achieved by the following technical scheme:

the toner cartridge with high toner utilization rate comprises a toner cartridge, a photosensitive drum, a developing roller and a waste toner bin which are sequentially arranged along a toner transmission direction, wherein the toner cartridge comprises a rotating rod, a scraping plate and crushing teeth, the rotating rod is axially connected to the inner wall of the toner cartridge, the scraping plate is arranged on the side wall of the rotating rod to scrape the inner wall of the toner cartridge, and the crushing teeth are connected to the side wall of the scraping plate; the rotating rod, the photosensitive drum and the developing roller are in transmission connection through a transmission assembly.

As a further scheme of the utility model: the end parts of the crushing teeth are in sharp-angle sharp-tooth structures and are used for crushing massive carbon powder.

As a further scheme of the utility model: the two ends of the developing roller are respectively connected with a magnet in a shaft way, the magnet is sleeved with a coil, the coil is electrically connected with a power supply, and the magnet is driven by the transmission assembly to cut magnetic force lines generated by the magnet.

As a further scheme of the utility model: the scraping plate is a plate made of elastic rubber.

As a further scheme of the utility model: the rotating rod, the photosensitive drum and the developing roller are meshed through a plurality of gears, and the transmission assembly is in transmission connection with the rotating rod, the photosensitive drum and the developing roller through gears.

As a further scheme of the utility model: the top of the carbon powder box is hinged with a box cover.

The utility model has the beneficial effects that:

according to the carbon powder cartridge with high carbon powder utilization rate, the rotating scraping plates are arranged in the carbon powder cartridge to scrape the inner wall of the carbon powder cartridge, the plurality of crushing teeth are connected to the scraping plates to crush block-shaped carbon powder, unused carbon powder is scraped, meanwhile, the two ends of the developing roller are connected with the magnets in a shaft mode, the coils are sleeved outside the magnets, and through converting mechanical energy into electric energy, waste of carbon powder caused by no power supply during idle running of the developing roller is avoided, therefore, waste powder is reduced, the utilization rate of the carbon powder is improved, and the use cost is reduced.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the overall structure of a toner cartridge with high toner utilization rate;

FIG. 2 is a schematic diagram of the internal structure of a toner cartridge with high toner utilization rate;

FIG. 3 is a cross-sectional view of a high toner cartridge drive assembly according to the present utility model;

FIG. 4 is a rear view of a toner cartridge with high toner utilization in accordance with the present utility model;

FIG. 5 is a schematic diagram of the internal structure of a toner cartridge with high toner utilization rate according to the present utility model;

fig. 6 is a schematic diagram of the external structure of a toner cartridge with high toner utilization.

In the figure: 1. a toner cartridge; 101. a rotating lever; 102. a scraper; 103. crushing teeth; 2. a waste powder bin; 3. a photosensitive drum; 4. a developing roller; 5. a transmission assembly; 501. a coil; 502. a magnet; 1101. a partition plate; 1102. a box cover; 1103. a housing; 12. a drive chamber; 120. a drive assembly; 1201. a power supply; 1202. a vibration motor; 13. a carbon powder chamber; 130. a cleaning assembly; 1302. a connecting rod; 1303. a cleaning head; 1304. a scraping plate; 14. a support assembly; 1401. a baffle; 1402. a first handle; 15. a collection box; 1501. a case body; 1502. and a second handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1 to 4, a toner cartridge with high toner utilization rate comprises a toner cartridge 1, a photosensitive drum 3, a developing roller 4 and a waste toner bin 2 which are sequentially arranged along the toner transfer direction during printing, unused toner for printing is arranged in the toner cartridge 1, the toner cartridge 1 is used as a toner bin for ensuring smooth supply of the toner, the photosensitive drum 3 is a core of the toner cartridge 1, other structures are distributed around the photosensitive drum 3, the photosensitive drum 3 receives charging and laser irradiation in the imaging process, an electrostatic latent image is formed on the surface of the photosensitive drum 3 to further form a visible toner image, the developing roller 4 is used for sucking the toner from the toner cartridge 1 and rubbing the toner to enable the toner to be charged, and the waste toner bin 2 is used for collecting the toner which is scraped by a cleaning scraper and is not transferred onto a printing medium and remains on the surface of the photosensitive drum 3;

because a part of carbon powder is attached to the inner wall of the carbon powder box 1 in the using process and cannot be fully utilized, a part of unused carbon powder can remain to cause resource waste, in order to improve the utilization rate of the carbon powder, a rotating rod 101 is axially connected to the carbon powder box 1, two ends of the rotating rod 101 are respectively and axially connected to transmission assemblies 5 on the left side and the right side of the carbon powder box 1, a plurality of scraping plates 102 are connected to the side wall of the rotating rod 101, a plurality of crushing teeth 103 are connected to the side wall of the scraping plates 102, sharp tooth structures are arranged at the end parts of one ends of the crushing teeth 103, which are far away from the scraping plates 102, and are used for crushing massive carbon powder in the carbon powder box 1, the sharp points of the sharp tips of the crushing teeth 103 are sharp angles, the transmission assemblies 5 are arranged at two sides of a carbon powder box body, and the transmission assemblies 5 are connected with the rotating rod 101, the photosensitive drum 3 and the developing roller 4 through gear transmission;

in an embodiment, since the carbon powder in the carbon powder box 1 is easy to agglomerate, damage can be generated to the components of the carbon powder box 1 in the use process, and the blocky carbon powder is not easy to be sucked out by the developing roller 4 and can cause waste of the carbon powder, the side wall of the scraping plate 102 is connected with a plurality of crushing teeth 103, the crushing teeth 103 are driven to crush the agglomerated carbon powder in the rotating process of the rotating rod 101, the crushing teeth 103 can generate a certain extrusion force on the carbon powder block along with the rapid rotation of the rotating rod 101, and the sharp-tooth-shaped crushing teeth 103 can crush and crush the agglomerated carbon powder, and the carbon powder block crushed by the crushing teeth 103 is scattered into powder, so that the developing roller 4 is convenient to absorb, the waste of the carbon powder is avoided, and the utilization rate of the carbon powder is improved;

in one embodiment, in order to scrape the carbon powder attached to the inner wall of the carbon powder box 1, the scraping plate 102 is arranged on the side wall of the rotating rod 101, the scraping plate 102 is always in contact with the inner wall of the carbon powder box 1 in the process of rotating along with the rotating rod 101 to scrape the carbon powder attached to the inner wall of the carbon powder box 1, the scraping plate 102 is a plate made of elastic rubber, the elastic rubber has certain flexibility and elasticity, the scraping plate 102 is prevented from scraping the inner wall of the carbon powder box 1 when scraping the inner wall of the carbon powder box 1, and meanwhile, the scraping plate 102 has certain bending elasticity and is not easy to break;

since the developing roller 4 is idling without power supply 1201 when the printer is just started, the photosensitive drum 3 rotates in advance when the printer is started, the power supply 1201 is not provided to the developing roller 4 by the printer, and an idling period without voltage control occurs on the developing roller 4; similarly, when the printer is just stopped, the developing roller 4 can also generate idle running without power supply 1201, before printing is finished, the developing roller 4 stops supplying power in advance, the photosensitive drum 3 continuously rotates, at this time, the developing roller 4 has idle running period without voltage control, the two idle developing rollers 4 still can absorb the carbon powder in the carbon powder box 1, thereby causing waste of the carbon powder, in order to avoid waste of the carbon powder and improve the utilization rate of the carbon powder, the two ends of the developing roller 4 are respectively connected with the columnar magnets 502 in a shaft way, the coil 501 is sleeved outside the magnets 502, the two ends of the coil 501 are electrically connected with the power supply 1201, and the magnets 502 enable the coil 501 to cut magnetic lines of force generated by the magnets 502 under the driving of the transmission assembly 5, so that the mechanical energy is converted into electric energy; when the printer starts to operate, the photosensitive drum 3 drives the developing roller 4 to rotate through a gear under the driving of the transmission assembly 5, the magnet 502 is axially connected to two ends of the developing roller 4, and magnetic lines of force generated by the magnet 502 are cut by the coil 501 along with the rotation of the magnet 502 to generate induced voltage, so that the developing roller 4 rotates in a charged mode, and waste powder is prevented from being generated due to idle running when the developing roller 4 is not supplied with the power supply 1201; also, when the printer is stopped, the idle running of the non-power supply 1201 is not generated due to the early power-off of the developing roller 4, and the generation of waste powder is avoided, thereby improving the utilization rate of the carbon powder. The scraper 102 rotating in the toner cartridge 1 scrapes the inner wall of the toner cartridge 1, the unused toner is scraped, meanwhile, the two ends of the developing roller 4 are axially connected with the magnet 502, the coil 501 is sleeved outside the magnet 502, and the waste of the toner caused by the fact that no power supply 1201 is used when the developing roller 4 idles is avoided by converting mechanical energy into electric energy, so that the generation of waste toner is reduced, the utilization rate of the toner is improved, and the use cost is reduced.

Embodiment two:

as shown in fig. 5-6, a toner cartridge with high toner utilization rate is provided, at this moment, the toner cartridge 1 is detachably connected with the whole toner cartridge body, when the toner is used up, only the toner cartridge 1 needs to be replaced, the whole toner cartridge body does not need to be replaced, resources are saved, and cost is reduced; the ink cartridge comprises a cartridge 1 body, wherein the cartridge 1 is internally provided with printing ink, and the top wall of a cartridge body 1501 of the cartridge 1 is connected with a reversible cartridge cover 1102. When the carbon powder contained in the carbon powder cartridge is used up to the final stage, the carbon powder is basically exhausted, and when the handwriting printed by the manuscript or the picture is not full during printing, a user can discard or give the carbon powder cartridge 1 to a recycling company for processing, but the unused carbon powder is still contained in the carbon powder cartridge 1 at the moment, and is a huge waste when the unused carbon powder is directly discarded or recycled, so that a baffle 1101 is arranged in a shell 1103 of the carbon powder cartridge 1 body, and the interior of the shell 1103 is divided into a driving cavity 12 and a carbon powder cavity 13 by the baffle 1101; the toner chamber 13 includes a sweeping assembly 130, the sweeping assembly 130 being rotatably disposed within the toner chamber 13; the driving chamber 12 is provided with the driving component 120, the driving component 120 is in transmission connection with the cleaning component 130 through the rotating rod 101, the driving component 120 is used for driving the cleaning component 130 to rotate on one hand, on the other hand, the running of the driving component 120 drives the shell 1103 to vibrate, carbon powder attached to the corners and the inner walls of the shell 1103 in the shell 1103 shakes off, the cleaning component 130 is used for cleaning carbon powder on the side walls of the shell 1103, the bottom of the shell 1103 is connected with the collecting box 15, and the unused carbon powder is collected to avoid waste.

Placing the toner for printing into the toner chamber 13, when the toner in the toner chamber 13 is about to be exhausted, in order to avoid waste, a rotatable cleaning assembly 130 is arranged in the toner chamber 13 to clean the toner chamber 13, the cleaning assembly 130 comprises a connecting rod 1302 and a cleaning head 1303, one end of the cleaning head 1303 is provided with a cleaning end with a brush, and the other end of the cleaning head 1303 is a fixed end for fixing the cleaning head 1303; wherein, the fixed end of the cleaning head 1303 is connected with one end of a connecting rod 1302, the other end of the connecting rod 1302 is connected with the side wall of the rotating rod 101, and the cleaning head 1303 is driven to rotate in the shell 1103 to sweep the unused carbon powder along with the rotation of the rotating rod 101;

further, in order to expand the cleaning angle and the cleaning range, a plurality of cleaning assemblies 130 are connected in the axial direction of the connecting shaft, the cleaning end of the cleaning head 1303 is abutted against the inner wall of the housing 1103, and the cleaning head 1303 is driven to scrape the inner wall of the housing 1103 by the rotation of the rotating rod 101, so that carbon powder which is attached to the inner wall of the housing 1103 and is difficult to clean is cleaned by scraping.

In order to drive the rotating rod 101 to rotate so as to drive the cleaning assembly 130 to clean residual carbon powder, a driving assembly 120 is arranged in the driving cavity 12 to drive, a connecting rod 1302 can be connected to a transmission assembly 5 of the selenium drum in a transmission way to drive the connecting rod 1302 to rotate, the driving assembly 120 comprises a power supply 1201 and a vibration motor 1202, a circuit is arranged in the driving assembly 120, the circuit is provided with a switch for controlling the opening and closing of the vibration motor 1202, the power supply 1201 is electrically connected with the vibration motor 1202 through the circuit, the power supply 1201 can adopt a battery to supply power for the vibration motor 1202, the vibration motor 1202 is an excitation source with a power source and the vibration source combined into a whole, the vibration motor 1202 is a group of adjustable eccentric blocks respectively arranged at two ends of a rotor shaft, and the vibration motor 1202 obtains excitation force by utilizing centrifugal force generated by high-speed rotation of the shaft and the eccentric blocks, and has the advantages of high utilization rate of the excitation force, low energy consumption, low noise, long service life, the excitation force can be adjusted in a stepless way, the vibration motor 1202 can be used as the power source can drive the rotating rod 101 to rotate, meanwhile, the vibration generated by the excitation force of the vibration motor 1202 is acted on the inner wall of a shell, and the carbon powder 1103 can be easily vibrated and loose; in one embodiment, the vibration motor 1202 is connected to the partition 1101, and the output shaft of the vibration motor 1202 extends into the toner chamber 13 through the partition 1101 and is in driving connection with one end of the rotating rod 101, the other end of the rotating rod 101 is connected to the inner wall of the housing 1103, and the vibration generated by the operation of the vibration motor 1202 vibrates the housing 1103 to shake off the toner.

In order to collect the cleaned and shaken off carbon powder, a clamping collecting box 15 is arranged at the bottom of the shell 1103, the collecting box 15 comprises a box body 1501 and a second handle 1502, and the second handle 1502 is arranged on the outer side wall of the box body 1501 so as to facilitate the sliding and extraction of the box body 1501 from the bottom of the shell 1103;

in one embodiment, in order to avoid accumulating the carbon powder in the collection box 15 when the carbon powder is loaded into the carbon powder cartridge, when the carbon powder is basically consumed, the carbon powder still remains in the box body 1501 of the collection box 15, and the cleaning time and the cleaning difficulty are increased when the carbon powder attached in the collection box 15 is cleaned, so that the support assembly 14 is installed at the top of the collection box 15, the support assembly 14 is interactively arranged at the bottom of the shell 1103 and the top of the collection box 15, the support assembly 14 separates the carbon powder chamber 13 from the box body 1501, in one embodiment, the support assembly 14 comprises a baffle 1401 and a first handle 1402, the baffle 1401 is slidably arranged at the bottom wall of the shell 1103, the first handle 1402 is arranged on the side wall of the baffle 1401 and is used for pulling the baffle 1401 to slide along the bottom wall of the shell 1103, and by arranging the baffle 1401, the baffle 1401 supports the carbon powder in the carbon powder chamber 13 and stacks in the chamber 13 when the carbon powder is introduced into the chamber 13;

further, during cleaning, the carbon powder cleaned from the top wall and the side wall of the housing 1103 is deposited on the baffle 1401, the scraping plate 1304 is mounted on the side wall of the housing 1103 along the drawing direction of the baffle 1401, when the baffle 1401 is gradually exposed from the box body 1501 of the collecting box 15 during the rightward drawing process of the baffle 1401, the scraping plate scrapes the carbon powder accumulated on the baffle 1401 and the cleaned carbon powder along with the drawing process of the baffle 1401, pushes the carbon powder into the collecting box 15, then draws the collecting box 15, and recovers the unused carbon powder in the box body 1501.

In an embodiment, a baffle plate 1401 is installed at the bottom of a toner chamber 13, the baffle plate 1401 is connected to the side wall of a casing 1103 in a sliding manner, a collecting box 15 is clamped at the bottom of the casing 1103, a scraping plate 1304 for scraping the toner on the top surface of the baffle plate 1401 is installed on the side wall of the casing 1103 at the outlet of the baffle plate 1401, when the unused residual toner in the toner chamber 13 is cleaned, the vibrating motor 1202 is installed on the baffle plate 1101 in a fitting manner to vibrate the toner chamber 13, meanwhile, the rotating rod 101 is driven to rotate, the cleaning assembly 130 is driven to clean the toner attached to the casing 1103 of the toner chamber 13, in the cleaning process, dust is easy to be scattered in the toner chamber 13 due to falling of the toner, if the toner is directly poured out at the moment, the dust is sucked by a user to harm the health, in order to avoid the occurrence of the situation, the baffle plate 1401 is installed, on the one hand, the top surface of the baffle plate 1304 is scraped by the scraping plate 1401, the top surface of the baffle plate 1304 is scraped into the collecting box 15 in the process of drawing the baffle plate 1401, and then the dust is pushed back to the toner chamber 13 and the dust chamber 13 is kept still, and the user is prevented from being sucked into the dust chamber 13, and the dust chamber is kept away by the user, and the dust is prevented from being sucked by the user when the user to the dust chamber 13.

In order to facilitate the carbon powder to be placed in the carbon powder chamber 13, a reversible box cover 1102 is hinged to the top wall of the shell 1103, and the box cover 1102 is closed after the box cover 1102 is opened to guide the carbon powder into the carbon powder chamber 13, wherein the shell 1103 is a hollow shell 1103 with an opening at the top and the bottom, two sides of the partition 1101 are fixed on two opposite side walls of the shell 1103 to divide the inner cavity of the shell 1103 into a driving chamber 12 and the carbon powder chamber 13, and the baffle 1401 is inserted into the bottom of the shell 1103 to play a supporting role when the carbon powder is poured.

The working principle of the toner cartridge with high toner utilization rate related to the second embodiment is as follows:

when the carbon powder in the carbon powder chamber 13 is basically consumed, the vibrating motor 1202 is started to drive the rotating rod 101 to rotate, the rotating rod 101 drives the cleaning assembly 130 to rotate, the cleaning head 1303 is abutted against the inner wall of the shell 1103 and rotates to scrape the inner wall of the shell 1103, meanwhile, the vibration generated by the vibrating motor 1202 loosens or even shakes off the carbon powder attached to the shell 1103, the cleaned residual carbon powder is accumulated on the baffle 1401, the box 1501 of the collecting box 15 is gradually exposed in the process of rightward extraction of the baffle 1401, at the moment, the scraping plate rubs the carbon powder accumulated on the baffle 1401 and the carbon powder which is swept down along with the extraction of the baffle 1401, pushes the carbon powder into the collecting box 15, and then the collecting box 15 is extracted, and the unused carbon powder in the box 1501 is recovered; through the cleaning head 1303 with cleaning assembly 130 butt at casing 1103 inner wall, along with the rotation of drive assembly 120 drive cleaning assembly 130 around casing 1103 inner wall, scrape the carbon dust that cleans the casing 1103 inner wall adhesion, simultaneously shake off the carbon dust that the casing 1103 inner wall adhesion through the exciting force that the vibrating motor 1202 of drive assembly 120 produced, through setting up gliding baffle 1401, set up the carbon dust that scrapes plate 1304 to baffle 1401 remaining and the carbon dust that sweeps down push to collecting box 15 and retrieve, cleaning range and cleaning effect have been improved, the waste of carbon dust has been avoided, and simultaneously not only can be used to clear away the carbon dust that has magnetism still can be applicable to clear up non-magnetism carbon dust, the suitability of carbon dust cartridge has been improved.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims (6)

1. The utility model provides a toner cartridge that carbon dust utilization ratio is high, includes toner cartridge (1), sensitization drum (3), developer roll (4) and useless powder storehouse (2) that set gradually along the carbon dust transmission direction, a serial communication port, toner cartridge (1) include dwang (101), scraper blade (102) and broken tooth (103), dwang (101) coupling in toner cartridge (1) inner wall, scraper blade (102) install in dwang (101) lateral wall is scraped toner cartridge (1) inner wall, broken tooth (103) connect in scraper blade (102) lateral wall; the rotating rod (101), the photosensitive drum (3) and the developing roller (4) are in transmission connection through the transmission component (5).

2. A toner cartridge with high toner utilization ratio according to claim 1, wherein the end of the crushing teeth (103) is in an acute angle-shaped sharp tooth structure for crushing the block-shaped toner.

3. The toner cartridge with high toner utilization rate according to claim 1, wherein two ends of the developing roller (4) are respectively connected with a magnet (502) in a shaft way, the magnets (502) are sleeved with coils (501), the coils (501) are electrically connected with a power supply (1201), and the magnets (502) enable the coils (501) to cut magnetic force lines generated by the magnets (502) under the driving of the transmission assembly (5).

4. A toner cartridge with high toner utilization ratio as in claim 1, wherein the scraper (102) is a plate made of elastic rubber.

5. A toner cartridge with high toner utilization ratio according to claim 1, wherein the rotating rod (101), the photosensitive drum (3) and the developing roller (4) are meshed through a plurality of gears, and the transmission assembly (5) is in transmission connection with the rotating rod (101), the photosensitive drum (3) and the developing roller (4) through gears.

6. A toner cartridge with high toner utilization ratio according to claim 1, wherein the top of the toner cartridge (1) is opened, and the top of the toner cartridge (1) is hinged with a box cover (1102).