Toner cartridge and electronic imaging equipment

Abstract

The utility model provides a toner cartridge and electronic imaging equipment, the toner cartridge comprises a shell, a toner bin for accommodating toner is arranged in the shell, a voltage receiving device is also arranged in the toner cartridge, and the voltage receiving device is supported between two end covers of the toner cartridge; the shell is provided with a voltage receiving terminal, and the voltage receiving terminal receives reference voltage loaded by the electronic imaging equipment; an environment detection and voltage regulation module is arranged in the shell, the environment detection and voltage regulation module is arranged close to the voltage receiving device, and the environment detection and voltage regulation module outputs voltage to the voltage receiving device; wherein the environment detection and voltage regulation module changes the voltage loaded to the voltage receiving device according to the change of the detected environment parameter. The electronic imaging equipment is provided with the toner cartridge. According to the utility model, the voltage loaded to the voltage receiving device can be flexibly adjusted according to the change of environmental conditions in the toner cartridge.

Description

Technical Field

[0001] The utility model relates to the technical field of laser printing, in particular to a toner cartridge and an electronic imaging device having the toner cartridge. Background Art

[0002] As common office equipment, electronic imaging equipment provides great convenience for modern office. Common electronic imaging equipment includes laser printers and copiers. Electronic imaging equipment needs to be installed with consumable containers such as toner cartridges. The toner cartridges contain toner. During the imaging process, the toner in the toner cartridge is transported to the outside of the toner cartridge and forms the text or pattern required for imaging on the paper.

[0003] See also Figure 1 A conventional toner cartridge 100 installed in a laser printer comprises a housing 110, and end caps 111 and 112 are respectively disposed at both ends of the housing 110. Figure 2 , a photosensitive drum 120, a charging roller 130 and a developing roller (not visible in the figure) are arranged in the housing 110, wherein the photosensitive drum 120, the charging roller 130 and the developing roller are all supported between the end cover 111 and the end cover 112. The photosensitive drum 120 has a core shaft 122 made of metal, and a driving gear 121 is arranged at one end of the photosensitive drum 120, and when the driving gear 121 rotates, the photosensitive drum 120 can be driven to rotate. Correspondingly, the charging roller 130 also has a core shaft 132 made of metal, and a driving gear 131 is arranged at one end of the charging roller 130, and when the driving gear 131 rotates, the charging roller 130 can be driven to rotate.

[0004] The printing process first begins with the surface of the photosensitive drum 120 being uniformly charged, for example, by applying a voltage to the surface of the photosensitive drum 120 by the charging roller 130 so that a uniform charge layer is generated on the surface of the photosensitive drum 120. Then, the laser beam in the laser printer is irradiated onto the surface of the photosensitive drum 120. In the irradiated area, the charge on the surface of the photosensitive drum 120 will change, for example, the charge in the irradiated area will be electrically neutralized, thereby forming a charge pattern corresponding to the image or text to be printed on the surface of the photosensitive drum 120. Next, the charged toner is adsorbed on the charged developing roller. Since the developing roller is in contact with the photosensitive drum 120 or the distance between the two is very close, under the action of the electric field force, the toner on the surface of the developing roller will be transferred to the surface of the photosensitive drum 120, thereby forming the text or pattern to be printed on the surface of the photosensitive drum 120. Subsequently, the photosensitive drum 120 transfers the toner to paper or other media. Finally, the paper is heated and / or pressed by a fixing unit to permanently melt or press the toner onto the paper.

[0005] Since the fixing unit of most existing laser printers fixes the toner to the paper by heating, the fixing unit will generate a large amount of heat, which causes the temperature and humidity in the toner cartridge to change. However, the resistance values ​​of the charging roller 130 and the developing roller of the toner cartridge will also change with the changes in temperature and humidity. Since the reference voltage output by the laser printer to the charging roller 130 is often fixed, when the resistance of the charging roller 130 changes, the current of the charging roller 130 will change. In addition, in response to the changes in temperature and humidity in the toner cartridge, the air temperature and humidity around the photosensitive drum 120 also change. In order to meet the demand for discharging the photosensitive drum 120, the voltage actually required by the charging roller 130 is also different. For example, at a lower temperature, the charging roller 130 needs to be loaded with a higher voltage, while at a higher temperature, the voltage required by the charging roller 130 will be reduced.

[0006] Similarly, the voltage applied to the developing roller also needs to be adjusted in time according to changes in temperature and humidity to meet the needs of high-quality transfer.

[0007] Since the conventional laser printer does not timely change the voltage applied to the charging roller 130 and the developing roller according to the changes in temperature and humidity, the printing quality is not high after the temperature and humidity change. Therefore, an existing laser printer is provided with a temperature sensor and a humidity sensor in the body, and adjusts the voltage applied to the charging roller and the developing roller according to the temperature detected by the temperature sensor and the humidity detected by the humidity sensor.

[0008] However, the existing method is to set the temperature sensor and humidity sensor inside the laser printer and outside the toner cartridge. On the one hand, the temperature sensor and humidity sensor cannot accurately detect the changes in temperature and humidity inside the toner cartridge. On the other hand, since the temperature sensor and humidity sensor are set inside the laser printer, but the replacement frequency of the laser printer is low, if the temperature sensor and humidity sensor are not set inside the laser printer, the use of ordinary toner cartridges will still result in low printing quality. Utility Model Content

[0009] The first object of the utility model is to provide a toner cartridge capable of accurately detecting environmental changes in the toner cartridge, wherein the toner cartridge can be applicable to a scenario where no environmental detection device is provided in an electronic imaging device.

[0010] The second purpose of the utility model is to provide an electronic imaging device which is detachably equipped with the above-mentioned toner cartridge.

[0011] To achieve the first purpose of the utility model, the toner cartridge provided by the utility model includes a shell, a powder bin for containing toner is arranged in the shell, and a voltage receiving device is also arranged in the toner cartridge, and the voltage receiving device is supported between two end covers of the toner cartridge; a voltage receiving terminal is arranged on the shell, and the voltage receiving terminal receives a reference voltage loaded by an electronic imaging device; and an environmental detection and voltage regulation module is arranged in the shell, the environmental detection and voltage regulation module is arranged close to the voltage receiving device, and the environmental detection and voltage regulation module outputs voltage to the voltage receiving device; wherein the environmental detection and voltage regulation module changes the voltage loaded to the voltage receiving device according to changes in the detected environmental parameters.

[0012] As can be seen from the above scheme, the utility model is to set an environment detection and voltage adjustment module in the toner cartridge, for example, to set a temperature sensor or a humidity sensor, and to adjust the voltage loaded to the voltage receiving device such as the charging roller or the developing roller according to the change of the detected environmental parameters. In this way, since the environment detection and voltage adjustment module is set in the toner cartridge, the environmental parameters such as the temperature and humidity in the toner cartridge can be accurately detected, so as to more accurately adjust the voltage loaded to the developing roller and the charging roller.

[0013] In addition, since an environmental detection and voltage adjustment module is provided in the toner cartridge, even if a temperature sensor or a humidity sensor is not provided in the electronic imaging device, as long as the toner cartridge of the utility model is installed in the electronic imaging device, the voltage of the charging roller and the developing roller can be adjusted to improve the printing quality.

[0014] A preferred solution is that the environment detection and voltage regulation module includes an environment detection device and a controller, the environment detection device is arranged close to the voltage receiving device, and the environment detection device sends the detected environment data to the controller; the environment detection and voltage regulation module also includes a voltage regulation device, and the voltage regulation device is connected between the voltage receiving terminal and the voltage receiving device; the controller outputs a control signal to the voltage regulation device according to the received environment data to change the voltage loaded by the voltage regulation device to the voltage receiving device.

[0015] It can be seen that the controller can dynamically adjust the voltage loaded to the voltage regulating device according to the received environmental parameters, thereby improving the accuracy of voltage regulation.

[0016] A further solution is that the environment detection device is a temperature sensor, and the temperature sensor outputs currently detected temperature data to the controller; and / or the environment detection device is a humidity sensor, and the humidity sensor outputs currently detected humidity data to the controller.

[0017] It can be seen that the printing quality can be improved by detecting the temperature and / or humidity in the toner cartridge and adjusting the voltage of the developing roller and the charging roller according to the temperature and / or humidity.

[0018] In a further embodiment, the voltage receiving device is a developing roller and / or a charging roller.

[0019] A further solution is that when the temperature detected by the temperature sensor increases, the voltage loaded on the developing roller increases; when the humidity detected by the humidity sensor increases, the voltage loaded on the developing roller decreases.

[0020] It can be seen that the above method can flexibly adjust the voltage loaded on the developing roller according to changes in temperature and humidity, so that a stable relationship is maintained between the voltage on the surface of the photosensitive drum and the voltage on the surface of the developing roller, thereby improving printing quality.

[0021] A further solution is that when the temperature detected by the temperature sensor increases, the voltage applied to the charging roller decreases; when the humidity detected by the humidity sensor increases, the voltage applied to the charging roller decreases.

[0022] It can be seen that the above method can flexibly adjust the voltage loaded on the charging roller according to changes in temperature and humidity. Since the charging roller charges the photosensitive drum, the voltage on the surface of the photosensitive drum and the voltage on the surface of the developing roller can maintain a stable relationship, thereby improving printing quality.

[0023] An optional solution is that the voltage regulating device includes a voltage dividing resistor connected in series with the selection switch device.

[0024] It can be seen that the voltage divider resistor can be selected to be turned on or off through the selection switch, and the working state of the selection switch can be controlled according to the actual temperature and humidity conditions, so as to meet the voltage usage requirements under different conditions.

[0025] Another optional solution is that the environment detection and voltage regulation module includes a temperature-sensitive resistor and / or a humidity-sensitive resistor connected between the voltage receiving terminal and the voltage receiving device.

[0026] It can be seen that by directly connecting the temperature-sensitive resistor and / or humidity-sensitive resistor between the voltage receiving terminal and the voltage receiving device, when the temperature or humidity changes, the resistance value of the temperature-sensitive resistor and / or humidity-sensitive resistor also changes accordingly, and the voltage loaded to the voltage receiving device also changes, thereby achieving the purpose of voltage regulation of the voltage receiving device. This method has a simple structure and low production cost.

[0027] To achieve the second objective, the electronic imaging device provided by the utility model comprises a body, in which at least one toner cartridge accommodating chamber is arranged, and is characterized in that the toner cartridge accommodating chamber is detachably installed with the toner cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of an existing toner cartridge.

[0029] Figure 2 It is a partial structural exploded diagram of the existing toner cartridge.

[0030] Figure 3 It is a structural diagram from a first perspective of the environment detection and voltage regulation module in the first embodiment of the carbon powder cartridge of the utility model.

[0031] Figure 4 It is a structural diagram from a second perspective of the environment detection and voltage regulation module in the first embodiment of the carbon powder cartridge of the utility model.

[0032] Figure 5 It is an electrical schematic diagram of the environment detection and voltage regulation module in the first embodiment of the carbon powder cartridge of the utility model.

[0033] Figure 6 It is a flow chart of the voltage control method of the first embodiment of the carbon powder cartridge of the utility model.

[0034] Figure 7 It is an electrical schematic diagram of the first working state of the environment detection and voltage regulation module in the second embodiment of the carbon powder cartridge of the utility model.

[0035] Figure 8 It is an electrical schematic diagram of the second working state of the environment detection and voltage regulation module in the second embodiment of the carbon powder cartridge of the utility model.

[0036] Fig. 9 It is an electrical schematic diagram of the environment detection and voltage regulation module in the third embodiment of the carbon powder cartridge of the utility model.

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0038] The electronic imaging device of the utility model can be a laser printer or a photocopier, and the toner cartridge can be detachably installed in the electronic imaging device. The electronic imaging device of the utility model can be provided with no temperature sensor, humidity sensor or other devices, but the temperature sensor and humidity sensor are provided in the toner cartridge, so as to more accurately detect the temperature and humidity in the toner cartridge, and then adjust the voltage loaded to the developing roller, the charging roller, etc. according to the environmental parameters such as the temperature and humidity in the toner cartridge.

[0039] First embodiment:

[0040] The electronic imaging device of this embodiment can be a laser printer or a photocopier, and a laser printer is used as an example for explanation. The toner cartridge of this embodiment can be detachably installed in the laser printer, and the toner cartridge has a shell, a powder bin for accommodating toner is arranged in the shell, and end covers are arranged at both ends of the shell, and components such as a photosensitive drum, a charging roller, and a developing roller are arranged in the shell, and the photosensitive drum, the charging roller, and the developing roller are all supported between the two end covers. The photosensitive drum has a core shaft made of metal, and a driving gear is arranged at one end of the photosensitive drum, and when the driving gear rotates, the photosensitive drum can be driven to rotate. Correspondingly, the charging roller and the developing roller also have a core shaft made of metal.

[0041] During the operation of the toner cartridge, both the charging roller and the developing roller need to receive the voltage from the laser printer. Therefore, two voltage receiving terminals need to be provided on the toner cartridge, one of which is used to receive the voltage output by the laser printer and output the voltage to the developing roller, and the other is used to receive the voltage output by the laser printer and output the voltage to the charging roller. It can be seen that both the developing roller and the charging roller are voltage receiving devices.

[0042] Since the environmental parameters of the laser printer are constantly changing, in order to adapt to such changes, this embodiment sets an environmental detection and voltage regulation module in the toner cartridge, see Figure 3 and Figure 4 The environment detection and voltage regulation module 200 includes a substrate 210. An electronic module 220 and a voltage receiving terminal 221 are arranged on one surface of the substrate 210. The voltage receiving terminal 221 is exposed on the shell surface of the toner cartridge and is used to receive the reference voltage output by the laser printer. A voltage output terminal 222 is arranged on the other surface of the substrate 210. The voltage output terminal 222 is electrically connected to the core shaft of the voltage receiving device and is used to output voltage to the voltage receiving device.

[0043] See also Figure 5 The electronic module 220 includes a controller 230, and the electronic module is also provided with an environment detection device. In this embodiment, the environment detection device includes a temperature sensor 231 and a humidity sensor 232. The temperature sensor 231 and the humidity sensor 232 are both electrically connected to the controller 230. The temperature sensor 231 outputs the detected temperature signal to the controller 230, and the humidity sensor 232 outputs the detected humidity signal to the controller 230. Preferably, the temperature sensor 231 and the humidity sensor 232 are arranged close to the voltage receiving device.

[0044] In this embodiment, corresponding environmental detection and voltage adjustment modules 200 are respectively provided for the charging roller and the developing roller. Therefore, the temperature sensor 231 and the humidity sensor 232 of the electronic module 220 corresponding to the charging roller need to be arranged close to the charging roller, and the temperature sensor 231 and the humidity sensor 232 of the electronic module 220 corresponding to the developing roller need to be arranged close to the developing roller, so as to accurately obtain the temperature and humidity of the charging roller and the developing roller.

[0045] In addition, the electronic module 200 also includes a voltage regulating device 235, which is arranged between the voltage receiving terminal 221 and the voltage output terminal 222. For example, the voltage regulating device 235 includes a plurality of step-down branches connected in parallel, each step-down branch can be controlled individually by the controller 230, and the resistance value of each step-down branch is not equal. At the same time, the controller 230 only controls one step-down branch to be turned on. In this way, when different step-down branches are turned on, the voltage output terminal 222 outputs different voltage values, thereby achieving the purpose of changing the voltage loaded to the voltage receiving device.

[0046] Usually, the reference voltage that the laser printer loads to the charging roller is 1000 V. The charging roller discharges to the photosensitive drum, and the voltage formed on the surface of the photosensitive drum is about 600 V. The reference voltage recorded by the laser printer to the developing roller is 400 V. As the temperature and humidity in the toner cartridge change, the voltage loaded to the charging roller and the developing roller needs to be adjusted.

[0047] To this end, this embodiment needs to obtain the temperature, humidity and other parameters around the charging roller and the developing roller through the controller 230, and dynamically change the voltage loaded on the charging roller and the developing roller. Taking the charging roller as an example, when the controller 230 detects that the temperature around the charging roller rises, the voltage loaded on the charging roller is reduced. For example, the higher the temperature detected by the temperature sensor 231 arranged around the charging roller, the lower the voltage loaded on the charging roller, that is, the greater the resistance of the voltage divider branch selected in the voltage regulating device 235. For example, the temperature detection range of the temperature sensor 231 is between 5°C and 40°C, and the detected temperature and the voltage loaded on the charging roller are shown in Table 1.

[0048] Table 1

[0049]

[0050] In addition, when the controller 230 detects that the humidity around the charging roller increases, the voltage applied to the charging roller is reduced. For example, the higher the humidity detected by the humidity sensor 232 arranged around the charging roller, the lower the voltage applied to the charging roller, that is, the greater the resistance of the voltage divider branch selected in the voltage regulating device 235. For example, the humidity detection range of the humidity sensor 232 is between 5% and 95%, and the detected temperature and the voltage applied to the charging roller are shown in Table 2.

[0051] Table 2

[0052]

[0053] During the printing process, as the temperature rises, the resistance inside the charging roller decreases. At this time, the voltage on the surface of the charging roller will be much higher than the voltage required on the surface of the photosensitive drum. Therefore, since the space inside the processing box is relatively small and sealed, when the temperature rises, the relative humidity decreases. Since the temperature and humidity are both dynamically changing, for this reason, the controller 230 will comprehensively determine the voltage that needs to be recorded on the charging roller based on the currently detected temperature and humidity conditions. For example, if the current temperature is detected to be 20°C, the corresponding voltage loaded to the charging roller should be 800V. If the current humidity is detected to be 25%, the corresponding voltage loaded to the charging roller should be 920V. At this time, the voltage output to the charging roller is based on the lower voltage, that is, the voltage output to the charging roller is determined to be 800V.

[0054] Of course, Table 1 and Table 2 are exemplary to show the relationship between temperature, humidity and the voltage recorded on the charging roller. In actual application, the voltage loaded on the charging roller can be adjusted according to factors such as different models of laser printing equipment, toner type, etc. Optionally, as the detected temperature increases, the reduction range of the voltage loaded on the charging roller increases, and as the detected humidity increases, the reduction range of the voltage loaded on the charging roller increases. Further, regardless of the detected temperature and humidity, the voltage loaded on the charging roller should be maintained between 600V and 1000V.

[0055] Similar to the case of the charging roller, the voltage loaded on the developing roller will also change with changes in temperature and humidity. However, the voltage loaded on the developing roller should be between 200V and 400V, that is, the voltage loaded on the developing roller needs to be lower than the voltage loaded on the charging roller, so that the voltage of the charging roller is higher than the voltage on the surface of the photosensitive drum, and the voltage on the surface of the photosensitive drum is higher than the voltage of the developing roller.

[0056] When the controller 230 detects that the temperature around the developing roller rises, the voltage loaded on the developing roller is increased. For example, the higher the temperature detected by the temperature sensor 231 arranged around the developing roller, the higher the voltage loaded on the developing roller, that is, the smaller the resistance of the voltage divider branch selected in the voltage regulating device 235. For example, the temperature detection range of the temperature sensor 231 is between 5°C and 40°C, and the detected temperature and the voltage loaded on the developing roller are shown in Table 3.

[0057] Table 3

[0058]

[0059] In addition, when the controller 230 detects that the humidity around the developing roller increases, the voltage applied to the developing roller is reduced. For example, the higher the humidity detected by the humidity sensor 232 arranged around the developing roller, the lower the voltage applied to the developing roller, that is, the greater the resistance of the voltage divider branch selected in the voltage regulating device 235. For example, the humidity detection range of the humidity sensor 232 is between 5% and 95%, and the detected temperature and the voltage applied to the developing roller are shown in Table 4.

[0060] Table 4

[0061]

[0062] Of course, Table 3 and Table 4 are exemplary to show the relationship between temperature, humidity and the voltage recorded on the developing roller. In actual application, the voltage loaded on the developing roller can be adjusted according to factors such as different models of laser printing equipment, toner type, etc. Optionally, as the detected temperature increases, the increase in the voltage loaded on the developing roller decreases, and as the detected humidity increases, the decrease in the voltage loaded on the developing roller decreases.

[0063] Combine the following Figure 6 The voltage control method of the toner cartridge is introduced. First, step S11 is executed, and the electronic module in the toner cartridge receives the reference voltage output by the electronic imaging device, and step S12 is executed to obtain the signals output by the temperature sensor and the humidity sensor, that is, to obtain the information of the current temperature and humidity in the toner cartridge. Next, step S13 is executed to determine the voltage loaded to the developing roller and the charging roller according to the current temperature and humidity in the toner cartridge, and step S14 is executed to control the operation of the voltage regulating device 235 according to the determined voltage loaded to the developing roller and the charging roller, such as selecting the corresponding voltage dividing branch. Finally, step S15 is executed to load the adjusted voltage to the developing roller or the charging roller, so as to adjust the voltage of the developing roller or the charging roller.

[0064] Second embodiment:

[0065] The electronic imaging device of this embodiment can be a laser printer or a photocopier, and a laser printer is used as an example for explanation. The toner cartridge of this embodiment can be detachably installed in the laser printer, and the toner cartridge has a shell, and end caps are respectively provided at both ends of the shell. Devices such as a photosensitive drum, a charging roller, and a developing roller are provided in the shell, and the photosensitive drum, the charging roller, and the developing roller are all supported between the two end caps. Two voltage receiving terminals need to be provided on the toner cartridge, one of which is used to receive the voltage output by the laser printer and output the voltage to the developing roller, and the other voltage receiving terminal is used to receive the voltage output by the laser printer and output the voltage to the charging roller.

[0066] Taking the charging roller as an example, the toner cartridge is provided with an environment detection and voltage adjustment module 310, see Figure 7 The environment detection and voltage regulation module 310 includes a temperature sensor 312, and is provided with a selection switch device 320, and is also provided with a controller (not shown in the figure). The temperature sensor 312 is arranged close to the charging roller, and is used to detect the temperature around the charging roller and output the detected temperature to the controller. The controller controls the state of the selection switch device 320 according to the detected temperature.

[0067] from Figure 7 It can be seen that the common terminal 321 of the selection switch device 320 is connected to the voltage receiving terminal 341, which is used to receive the voltage output by the laser printer. The selection switch device 320 has a normally closed terminal 322 and a normally open terminal 323, wherein the normally closed terminal 322 is directly connected to the voltage output terminal 342, and the voltage output terminal 342 outputs voltage to the charging roller, and a voltage divider resistor 330 is connected between the normally open terminal 323 and the voltage output terminal 342.

[0068] When the temperature sensor 312 detects that the current temperature is low, the common terminal 321 is connected to the normally closed terminal 322. At this time, the voltage output by the laser printer will be directly output to the charging roller. When the temperature sensor 312 detects that the current temperature is high, the common terminal 321 is connected to the normally open terminal 323. At this time, Figure 8 As shown, the voltage output by the laser printer needs to be divided by the voltage-dividing resistor 330 before being output to the charging roller. Due to the voltage-dividing effect of the voltage-dividing resistor 330, the voltage applied to the charging roller can be reduced.

[0069] certainly, Figure 7 Only one voltage-dividing branch is schematically shown in the figure. In actual application, the selection switch device 320 may have multiple gears, each gear corresponds to a voltage-dividing branch, each voltage-dividing branch has one or more resistors, and the resistance value of each voltage-dividing branch is not equal, corresponding to different voltage reduction amplitudes. In this way, the controller can select different voltage-dividing branches according to the actual detected temperature value to output different voltages to the charging roller.

[0070] The humidity detection of the charging roller is similar to the temperature detection of the charging roller, so it will not be described in detail. In addition, the environment detection and voltage adjustment module for the developing roller has the same structure as the environment detection and voltage adjustment module for the charging roller, and the working principle is similar, so it will not be described in detail.

[0071] Third embodiment:

[0072] The electronic imaging device of this embodiment can be a laser printer or a photocopier, and a laser printer is used as an example for explanation. The toner cartridge of this embodiment can be detachably installed in the laser printer, and the toner cartridge has a shell, and end caps are respectively provided at both ends of the shell. Devices such as a photosensitive drum, a charging roller, and a developing roller are provided in the shell, and the photosensitive drum, the charging roller, and the developing roller are all supported between the two end caps. Two voltage receiving terminals need to be provided on the toner cartridge, one of which is used to receive the voltage output by the laser printer and output the voltage to the developing roller, and the other voltage receiving terminal is used to receive the voltage output by the laser printer and output the voltage to the charging roller.

[0073] Taking the charging roller as an example, the toner cartridge is equipped with an environmental detection and voltage regulation module, see Fig. 9 The environment detection and voltage regulation module includes a temperature-sensitive resistor 410 and a humidity-sensitive resistor 420 connected in series. The temperature-sensitive resistor 410 and the humidity-sensitive resistor 420 are connected in series between a voltage receiving terminal 401 and a voltage output terminal 402 .

[0074] For example, for the charging roller, the thermistor 410 is a thermistor with a positive temperature coefficient, that is, the higher the temperature, the greater its resistance; the humidifier 420 is also a humidifier with a positive temperature coefficient, that is, the higher the humidity, the greater its resistance. Therefore, when the temperature around the charging roller increases, the resistance of the thermistor 410 increases, so that the voltage loaded to the charging roller decreases; correspondingly, when the humidity around the charging roller increases, the resistance of the thermistor 410 increases, so that the voltage loaded to the charging roller decreases. If the thermistor is a thermistor with a negative temperature coefficient for the developing roller, that is, the higher the temperature, the smaller its resistance; the humidifier is a humidifier with a positive temperature coefficient, that is, the higher the humidity, the greater its resistance.

[0075] It can be seen that this embodiment does not require the provision of a controller or a selection switch device, which is beneficial to reducing the production cost of the toner cartridge and also beneficial to reducing the volume of the environment detection and voltage regulation module, thereby achieving miniaturization of the toner cartridge.

[0076] Since the temperature sensor and the humidity sensor are arranged in the toner cartridge, and the temperature sensor is arranged close to the voltage receiving devices such as the charging roller and the developing roller, the temperature around the charging roller and the developing roller can be accurately detected, so that the voltage adjustment of the charging roller and the developing roller is more accurate. In addition, since the temperature sensor and the humidity sensor are arranged in the toner cartridge, when the temperature sensor and the humidity sensor are not arranged in the laser printer, the toner cartridge can adjust the voltage loaded to the charging roller and the developing roller by itself, and can be applied to more types of laser printers.

[0077] Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A toner cartridge, comprising: A shell, wherein a powder bin for containing toner is disposed in the shell, and a voltage receiving device is also disposed in the toner cartridge, and the voltage receiving device is supported between two end covers of the toner cartridge; The housing is provided with a voltage receiving terminal, and the voltage receiving terminal receives a reference voltage loaded by the electronic imaging device; Features: An environment detection and voltage regulation module is arranged in the housing, the environment detection and voltage regulation module is arranged close to the voltage receiving device, and the environment detection and voltage regulation module outputs voltage to the voltage receiving device; The environment detection and voltage regulation module changes the voltage applied to the voltage receiving device according to changes in the detected environment parameters.

2. The toner cartridge according to claim 1, characterized in that: The environment detection and voltage regulation module comprises an environment detection device and a controller, wherein the environment detection device is arranged close to the voltage receiving device, and the environment detection device sends the detected environment data to the controller; The environment detection and voltage regulation module further includes a voltage regulation device, and the voltage regulation device is connected between the voltage receiving terminal and the voltage receiving device; The controller outputs a control signal to the voltage regulating device according to the received environmental data so as to change the voltage applied by the voltage regulating device to the voltage receiving device.

3. The toner cartridge according to claim 2, wherein: The environment detection device is a temperature sensor, and the temperature sensor outputs currently detected temperature data to the controller; and / or The environment detection device is a humidity sensor, and the humidity sensor outputs currently detected humidity data to the controller.

4. The toner cartridge according to claim 3, characterized in that: The voltage receiving device is a developing roller and / or a charging roller.

5. The toner cartridge according to claim 4, characterized in that: When the temperature detected by the temperature sensor increases, the voltage applied to the developing roller increases; When the humidity detected by the humidity sensor increases, the voltage applied to the developing roller decreases.

6. The toner cartridge according to claim 4, characterized in that: When the temperature detected by the temperature sensor increases, the voltage applied to the charging roller decreases; When the humidity detected by the humidity sensor increases, the voltage applied to the charging roller decreases.

7. The toner cartridge according to any one of claims 2 to 6, characterized in that: The voltage regulating device includes a voltage dividing resistor connected in series with the selection switch device.

8. The toner cartridge according to claim 1, characterized in that: The environment detection and voltage regulation module includes a temperature-sensitive resistor and / or a humidity-sensitive resistor connected between the voltage receiving terminal and the voltage receiving device.

9. Electronic imaging equipment, including: A machine body, wherein at least one toner cartridge accommodating chamber is arranged in the machine body, wherein the toner cartridge as claimed in any one of claims 1 to 8 is detachably installed in the toner cartridge accommodating chamber.

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