CN113741161B - Toner replenishing device and image forming apparatus - Google Patents
Toner replenishing device and image forming apparatus Download PDFInfo
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- CN113741161B CN113741161B CN202110581303.7A CN202110581303A CN113741161B CN 113741161 B CN113741161 B CN 113741161B CN 202110581303 A CN202110581303 A CN 202110581303A CN 113741161 B CN113741161 B CN 113741161B
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- 238000004364 calculation method Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
- G03G15/5037—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor the characteristics being an electrical parameter, e.g. voltage
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
The present invention relates to a toner replenishing device and an image forming apparatus that reduce the number of parts by reducing the number of parts for protecting the ground or the like. The toner replenishing device for replenishing toner in a toner container to an image forming apparatus includes an electrode portion provided in relation to the toner container, a calculating portion for calculating an amount of the toner based on an electrostatic capacity value measured by the electrode portion, and a control portion for controlling the electrode portion to be any one of a transmitting electrode for transmitting an electric wave for measuring the electrostatic capacity value, a receiving electrode for receiving the electric wave, and a ground.
Description
Technical Field
The present invention relates to a toner replenishing device and an image forming apparatus.
Background
In an electrophotographic image forming apparatus, a technique for detecting a toner remaining amount in a toner tank is known.
For example, a toner remaining amount detecting means for obtaining electrostatic capacity is known to detect the remaining amount of toner. Specifically, two detection electrodes are provided at a predetermined interval on a tank support member using an insulating material having high resistance. Then, a detachable toner tank is provided on the detection electrode. In this way, the time until the potential difference between the electrodes reaches a predetermined value is measured to determine the toner remaining amount (for example, patent document 1).
The prior art is a construction using a member such as a protective earth. Therefore, in the prior art, there are cases where the number of parts is large, and the size or cost is increased.
An object of one embodiment of the present invention is to reduce the number of parts by reducing the number of parts for protecting the ground or the like.
Japanese patent document 1 (Kokai) No. 2004-286792
Disclosure of Invention
One embodiment of the present invention relates to a toner replenishing device for replenishing toner in a toner container to an image forming apparatus, including: an electrode portion provided with respect to the toner container; a calculation unit that calculates the amount of toner based on the electrostatic capacity value measured by the electrode unit; and a control unit that controls the electrode unit to be any one of a transmitting electrode that transmits a radio wave for measuring the capacitance value, a receiving electrode that receives the radio wave, and a ground.
The number of parts for protecting the ground and the like can be reduced.
Drawings
Fig. 1 is an explanatory view of a toner replenishing device.
Fig. 2 is a schematic view showing the structure of the electrode section.
Fig. 3 is a schematic diagram of a comparative example of the electrode section.
Fig. 4 is an explanatory diagram showing toner bias.
Fig. 5 is a measurement illustration diagram in the comparative example.
Fig. 6 is a schematic configuration diagram of the calculation unit.
Fig. 7 is an explanatory diagram showing the use of a plurality of toner containers.
Fig. 8 is a diagram illustrating a handover.
Fig. 9 is a diagram showing a comparative example.
Fig. 10 is a functional configuration diagram.
Detailed Description
The best and minimum modes for carrying out the present invention will be described below with reference to the drawings. In the drawings, the same reference numerals are given to the same components, and redundant description is omitted. The specific example shown in the drawings is an illustration, and may further include a configuration other than the one shown in the drawings.
< First embodiment >, first embodiment
For example, the description will be given taking as an example a case where the image forming apparatus has the following configuration of the toner replenishing device. However, the toner replenishing device and the image forming apparatus may be integrally formed, or may be formed by other devices such as a detachable device.
Example of toner replenishing device
Fig. 1 is an explanatory view of a toner replenishing device. For example, the toner replenishing device 100 replenishes the image forming apparatus with toner by a toner container 32 as shown in the drawing.
Hereinafter, the longitudinal direction of the toner container 32 is referred to as "Y axis". On the other hand, a direction orthogonal to the Y axis and serving as a so-called gravitational direction is referred to as a "Z axis". The direction orthogonal to the Y axis and being the so-called horizontal direction is referred to as the "X axis".
The toner container 32 is supported by a guide member 72. The toner container 32 is, for example, a substantially cylindrical toner tank. Then, the toner container 32 is constituted by, for example, a cap 34 held in a non-rotatable manner in the toner container housing portion and a container main body 33 integrally formed with a gear 33 c.
The container main body 33 is held so as to be relatively rotatable with respect to the cover 34. Specifically, the gear 33c is engaged with the drive output gear 81. Then, when the drive motor 91 rotationally drives the output gear 81, the outer peripheral surface of the container main body 33 is guided while the container main body 33 is rotationally driven, since the drive is transmitted to the gear 33 c.
When the container body 33 rotates, the toner stored in the container body 33 is conveyed along the longitudinal direction of the container body 33 by the spiral protrusion 331 formed in a spiral shape on the inner peripheral surface of the container body 33. In the illustrated example, the toner is conveyed from left to right. Then, the conveyed toner is discharged from the toner container 32, and the toner is supplied to the hopper portion 61. That is, when the container main body 33 is rotated by the driving motor 91, the toner is supplied into the hopper portion 61. Then, the toner is supplied to the image forming apparatus by rotation of the toner conveying screw 62.
The toner containers 32 are provided for each color, for example, as Y, M, C and K. Then, when the toner container 32 reaches the lifetime (for example, when the amount of toner in the toner container 32 becomes equal to or less than a certain level), the toner container is replaced with a new one.
For example, the electrode portions are provided in a pair with respect to the toner container 32. Specifically, the electrode portion is provided above and below the toner container 32 so as to cover a substantial part of the toner container 32. In this example, the first electrode plate 65 is provided at a position above the toner container 32, and the second electrode plate 66 is provided at a position below the toner container 32.
The electrode portion is made of, for example, a conductive member. Specifically, the first electrode plate 65 and the second electrode plate 66 are members of iron or the like.
The positions and the number of the first electrode plates 65 and the second electrode plates 66 may be other than those shown in the drawings.
The electrode portion is formed as shown in the figure by the section "A-A", and the structure is as follows.
Fig. 2 is an exemplary view showing the structure of the electrode portion. In the illustrated example, the capacitance value measuring device 111 measures the capacitance value between the first electrode plate 65 and the second electrode plate 66.
For example, the electrostatic capacity value is measured by a charging method or the like. Specifically, in the charging method, a constant voltage and a constant current are applied to the first electrode plate 65 and the second electrode plate 66. Then, the electrostatic capacity value is measured based on the relationship between the time until the charging point is reached and the current and voltage.
The value of the electrostatic capacity varies according to the dielectric constant between the first electrode plate 65 and the second electrode plate 66. Therefore, since the dielectric constant changes when the amount of toner changes inside the toner container 32, the amount of toner can be calculated by measuring the electrostatic capacity value. Specifically, since the dielectric constant of the toner is high with respect to air, the dielectric constant increases when the amount of the toner is large.
The capacitance value may be measured by a method other than the charging method.
In the case of the configuration shown in the drawings, the capacitance value can be measured with higher accuracy than in the case of the configuration disclosed in, for example, japanese unexamined patent publication No. 07-092802.
The toner container 32 is configured to rotate, but often rotates eccentrically due to dimensional tolerances or the like. In the configuration as shown in the drawing, as long as the toner container 32 is provided between the first electrode plate 65 and the second electrode plate 66, the substantially same value can be measured as long as the amount of toner is the same regardless of the change in the position of the toner container 32, and the electrostatic capacity value can be measured with high accuracy.
In addition, the first electrode plate 65 and the second electrode plate 66 are preferably parallel plates. Hereinafter, the configuration of the parallel plate will be described in comparison with the configuration using the arc-shaped electrode portion as described below.
Fig. 3 is a schematic diagram of a comparative example of the electrode section. As shown in the figure, the present invention is described in comparison with a comparative example of arc-shaped electrode portions such as the upper arc plate 201 and the lower arc plate 202. In the electrode portion having such a shape, toner may be biased as described below.
Fig. 4 is an explanatory diagram showing toner bias. For example, as shown in the figure, the toner T may be biased in a partial direction (in the illustrated example, the toner T is biased to the right in the figure). If such a bias exists, for example, the following measurement results are obtained.
Fig. 5 is a measurement illustration diagram in the comparative example. For example, when the upper arc plate 201 serves as a transmitting electrode and the lower arc plate 202 serves as a receiving electrode, the electric lines of force of the electric wave transmitted from the upper arc plate 201 are as shown.
If the electrode portions are arc-shaped, the density of electric lines of force is different between the end portions (for example, the region indicated by "end portion a" in the drawing) and the central portion (for example, the region indicated by "central portion B" in the drawing). Therefore, even if the amount of the toner T is the same as a whole, there is a case where the measurement result is different from that when the toner T is uniform in some cases when the toner T is biased.
On the other hand, if the first electrode plate 65 and the second electrode plate 66 are parallel plates, even if the toner T is biased, the toner amount can be measured with the same accuracy as long as the toner amount is the same as a whole.
The calculation means 112 calculates the amount of toner from the electrostatic capacity value measured by the electrostatic capacity value measurement means 111. For example, the computing device 112 is a CPU (central processing unit), an electronic circuit, a combination thereof, or the like. The calculation unit may have the following configuration.
Fig. 6 is an explanatory diagram showing the configuration of the calculating unit. For example, as shown in the figure, the computing device 112 is a hardware configuration having the detection substrate 10.
The detection substrate 10 is an electronic printed circuit board on which a microcomputer 101 as an example of a computing device and a control device is mounted. Further, a storage device 102 such as a nonvolatile memory is mounted on the detection substrate 10. Accordingly, the microcomputer 101 performs various processes by cooperating with hardware such as the storage device 102.
The calculation unit may be configured to use a calculation device other than the microcomputer 101. For example, as shown in the figure, the calculation may be performed by an external device such as an image forming apparatus. In the illustrated example, the detection board 10 and the engine control board 11 communicate with each other. That is, the calculation unit may use the CPU103 or the like mounted on the engine control board 11.
The calculation unit may be configured to perform calculation using a server or the like on a cloud connected via a network or the like.
For example, in the case where the image forming apparatus performs image formation of four colors, as shown in the drawing, toner containers are provided for each color. Specifically, in this example, four toner containers such as yellow toner container 321, magenta toner container 322, cyan toner container 323, and black toner container 324 are used.
In this way, in the case of using a plurality of toners, the amounts of the toners are calculated for each toner container. Therefore, in this example, the amount of toner is calculated for each color separately.
In order to calculate the amount of toner for each toner container, a pair of electrode portions are provided in each toner container. Specifically, the illustrated example is a configuration in which the 11 th electrode portion 3211 and the 12 th electrode portion 3212 are provided in the yellow toner container 321. Similarly, the 21 st electrode portion 3221 and the 22 nd electrode portion 3222 are provided to the magenta toner container 322. The 31 st electrode portion 3231 and the 32 nd electrode portion 3232 are provided to the cyan toner container 323. Further, the 41 st electrode portion 3241 and the 42 nd electrode portion 3242 are provided to the black toner container 324.
The number and types of toner containers and the structure of the electrode portions as shown in the drawings will be described below as an example.
Fig. 7 is an explanatory diagram showing the use of a plurality of toner containers. As shown in the drawing, a pair of electrode portions is provided for each toner container. Then, the protective ground 12 and the like are provided to the whole so as to include all the toner containers and all the electrode portions.
Then, the control unit switches each electrode unit to one of the transmitting electrode, the receiving electrode, and the ground (hereinafter, also referred to as "GND"). Specifically, the following switching is performed.
Fig. 8 is a diagram illustrating a handover. In the illustrated example, the toner amount in the magenta toner container 322 is calculated. Hereinafter, as in the magenta toner container 322 in this example, the toner container to be the object of calculating the amount of toner is referred to as "first toner container". On the other hand, a toner container different from the first toner container, that is, a yellow toner container 321, a cyan toner container 323, a black toner container 324, or a combination thereof in this example, is referred to as a "second toner container".
In the example where the magenta toner container 322 is used as the first toner container, the pair of electrode portions (in this example, the pair of 21 st electrode portions 3221 and 22 nd electrode portions 3222) provided with respect to the first toner container is referred to as "first electrode pair P1". On the other hand, a pair of electrode portions (in this example, a pair of 11 th electrode portions 3211 and 12 th electrode portions 3212, but an electrode portion provided for a toner container of another color may be referred to as a "second electrode pair P2") provided for a yellow toner container 321 or the like as an example of the second toner container.
As shown in the drawing, the microcomputer 101 controls each electrode unit to be switched to any one of a transmitting electrode, a receiving electrode, and a ground. Specifically, this example is a control example of grounding the second electrode pair P2 and the like. On the other hand, this example is a control example in which the 21 st electrode portion 3221 in the 1 st electrode pair P1 is a transmitting electrode and the 22 nd electrode portion 3222 is a receiving electrode.
In such control, as shown in the figure, compared with the comparative example described below, the number of parts such as the protection ground provided between the toner containers can be reduced.
Further, as shown in the figure, by the control of the microcomputer 101, the transmitting electrode, the receiving electrode, or the ground can be switched, and the electrode portion can be flexibly changed to the detection use or the protection ground use.
In this way, it is preferable to have a configuration of a switch capable of switching each electrode unit to any one of a transmitting electrode, a receiving electrode, and a ground.
In the case where three or more toner containers are used and the amounts of two or more toners are measured at the same time, it is preferable to calculate the amount of toner in a combination of a plurality of toner containers provided apart from one or more of the plurality of toner containers.
In the case of using four toner containers, the combination of the amounts of the calculated toners is, for example, preferably a combination of "Y" and "C" (a combination of "M" is skipped), and a combination of "M" and "K" (a combination of "C" is skipped). That is, it is preferable to calculate the amounts of toners in the non-adjacent toner containers at the same time. In addition, in the case of using a special color, a combination with a special color may be used.
For example, in the combination of "Y" and "C", control is performed such that the electrode portions (specifically, the 21 st electrode portion 3221, the 22 nd electrode portion 3222, the 41 st electrode portion 3241, and the 42 nd electrode portion 3242) provided for "M" and "K" are grounded in the calculation. In this way, the adjacent electrode plays a role of protecting the toner container to be calculated from the ground. Therefore, the amount of toner can be calculated with high accuracy.
The toner container to be calculated may be provided separately from one or more of them, or may be provided separately from a combination of two or more of them. Specifically, a combination of "Y" and "K" is also possible.
Comparative example
Fig. 9 is a diagram of a comparative example. In this comparative example, each electrode portion acts as a transmitting electrode or a receiving electrode to be fixed. In this configuration, as shown in the figure, the protective ground 300 is interposed between the toner containers or the like, so that the influence of disturbance in measurement is reduced. Therefore, the protective earth 300 has a large number of components.
Thus, if the number of parts is large, the size becomes large, the weight increases, the cost increases, or the like.
The configuration shown in fig. 7 is a configuration in which the number of parts of the protective ground 300 is reduced and the number of parts is reduced as compared with the comparative example. Therefore, compared with the comparative example, miniaturization, weight saving, cost reduction, and the like can be achieved. Further, even if the parts of the ground 300 are not protected, the influence of disturbance can be reduced, and the amount of toner can be measured with high accuracy.
< Modification >
The toner replenishing device 100 may have a structure including a temperature sensor or the like. That is, in order to detect the ambient temperature of the toner container 32 and calculate the amount of toner, correction may be performed based on the temperature.
When members constituting the upper wall surface 67 and the lower wall surface 68 where the first electrode plate 65 and the second electrode plate 66 are provided expand and contract due to heat, there are cases where the electrode portions are changed. That is, the deformation of the upper wall surface 67 and the lower wall surface 68 may affect the capacitance value measured by the electrode portion. Therefore, if the structure is such that the influence of such a temperature change is corrected by measuring the temperature, the capacitance value can be measured with high accuracy.
As shown in the drawing, the toner replenishing device 100 may have an output device 115. For example, the output device 115 is an operation panel or the like. That is, the output device 115 is a device that displays the calculated toner amount and the like calculated by the calculation device 112. Thus, when the amount of toner is output, the timing of replacing the toner container can be known.
Further, the hardware constitution is not limited to the above example. For example, a configuration may be adopted in which a computing device, a control device, a storage device, an input device, or an output device other than those shown in the above examples are used. On the other hand, the calculating device, the control device, the storage device, the input device, or the output device may be configured to be commonly used for the toner replenishing device and the image forming apparatus.
< Functional configuration example >
Fig. 10 is a functional configuration diagram. For example, the toner replenishing device 100 is configured to have a plurality of functions of the electrode unit F1, the calculating unit F2, and the control unit F3. The image forming apparatus 1000 is provided with a functional configuration of an image forming portion F4.
The electrode portion F1 is provided with respect to the toner container 32. One of the pair of electrode portions F1 is a transmitting electrode for transmitting radio waves for measuring capacitance values. The other of the pair of electrode portions F1 serves as a receiving electrode for receiving radio waves.
The calculating section F2 calculates the amount of toner in the toner container 32 based on the electrostatic capacity value measured by the electrode section. For example, the calculation unit F2 is implemented by the microcomputer 101, the CPU103, or the like.
The control unit F3 controls the electrode unit F1 to be any one of a transmitting electrode, a receiving electrode, and a ground. For example, the control unit F3 is implemented by the microcomputer 101, the CPU103, or the like.
The image forming unit F4 receives toner replenishment from the toner replenishment device 100 and forms an image on a recording medium.
< Example image Forming apparatus >
The image forming apparatus is, for example, a printer or the like. That is, the printer is a device that forms an image on paper or the like using powder such as toner.
The image forming apparatus is not limited to a printer, and may be any apparatus that forms an image by performing processes such as charging, exposure, development, transfer, fixing, and cleaning using powder. For example, the image forming apparatus is an MFP (multi peripheral), a copying machine, a multifunction peripheral, a copying machine, a FAX, or the like.
< Other embodiments >
The embodiments described above may be combined and implemented. That is, the present invention may be implemented by combining a part or the whole of the respective embodiments.
All or a part of the overall processing may be described in computer language, and may be realized by a program for causing a computer to execute the toner amount measurement method. That is, the program is a computer program for causing a toner amount measurement method using a computer or using two or more computers to execute each process.
Therefore, when the toner amount measurement method is executed based on a program, an arithmetic device and a control device included in a computer perform arithmetic and control based on the program to execute each process. The storage device of the computer stores data used for the processing according to a program for executing each processing. The electronic circuit may be configured to execute a part of the processing.
In addition, the program may be recorded in a computer-readable storage medium and issued. The storage medium is a magnetic tape, a flash memory, an optical disk, a magneto-optical disk, a magnetic disk, or the like. Still further, the program may be distributed via a telecommunications line.
Further, the embodiment of the present invention can be realized by an image forming system. In addition, the image forming system may also perform respective processing and storage of data by redundancy, dispersion, parallelism, virtualization, or a combination thereof.
The present invention has been described above with reference to the embodiments, but the present invention is not limited to the requirements shown in the embodiments. These may be changed within a range not to impair the gist of the present invention, and may be appropriately determined according to the application mode thereof.
Claims (5)
1. A toner replenishing device for replenishing toner in a toner container to an image forming apparatus, comprising:
An electrode portion provided with respect to the toner container;
A calculation unit that calculates the amount of toner based on the electrostatic capacity value measured by the electrode unit;
A control unit for controlling the electrode unit to be any one of a transmitting electrode for transmitting an electric wave for measuring the capacitance value, a receiving electrode for receiving the electric wave, and a ground,
When a plurality of toner containers are used, the control unit controls, when calculating the amount of toner in a first one of the plurality of toner containers, a pair of electrode units provided with respect to the first one of the toner containers, that is, a first electrode pair, to be a pair of the transmitting electrode and the receiving electrode, and controls, when calculating a second one of the plurality of toner containers, at least one electrode unit in a pair of electrode units provided with respect to a second one of the plurality of toner containers, which is different from the first one, to be the ground, and the second electrode pair, when calculating the second one of the toner containers, to be a pair of the transmitting electrode and the receiving electrode.
2. The toner replenishing device according to claim 1, wherein:
The control unit performs switching of the transmitting electrode, the receiving electrode, or the ground by control of a microcomputer.
3. The toner replenishing device according to claim 1, wherein:
The control unit switches the transmitting electrode, the receiving electrode, or the ground by a switch.
4. The toner replenishing device according to claim 1, wherein:
when three or more toner containers are used, the calculating unit calculates the amounts of toner in a plurality of toner containers provided apart from one or more toner containers.
5. An image forming apparatus, characterized in that:
Having the toner replenishing device according to any one of claims 1 to 4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020-094644 | 2020-05-29 | ||
| JP2020094644A JP7452256B2 (en) | 2020-05-29 | 2020-05-29 | Toner supply device and image forming device |
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| Publication Number | Publication Date |
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| CN113741161A CN113741161A (en) | 2021-12-03 |
| CN113741161B true CN113741161B (en) | 2024-04-19 |
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| JP2005195885A (en) * | 2004-01-07 | 2005-07-21 | Sharp Corp | Toner cartridge and image forming apparatus using same |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2021189310A (en) | 2021-12-13 |
| JP7452256B2 (en) | 2024-03-19 |
| CN113741161A (en) | 2021-12-03 |
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