Powder box and modification method thereof

Abstract

The present invention provides a powder box and a modification method thereof. The powder box includes a developing box and a drum box. The developing box includes a powder bin and a stirring frame. The drum box includes an upper cover, a lower shell, a cleaning scraper and a photosensitive drum. The upper cover and the lower shell form a waste powder storage bin. The cleaning scraper and the upper cover form a waste powder collection bin. The waste powder storage bin and the waste powder collection bin are arranged along the width direction of the powder box. The waste powder collection bin is provided with a first opening and a second opening at both ends of the width direction, respectively. The photosensitive drum is located at the first opening, and the waste powder collection bin is connected to the waste powder storage bin through the second opening. The modification method includes: opening a powder replenishing port at the top of the powder bin; cutting the upper cover and removing the extension including the handle on the upper cover, and the new upper cover forms a toner replenishing box installation position at the cutting position; adding a toner replenishing box, sealingly connecting the supply port at the bottom of the toner replenishing box with the powder replenishing port, and installing the toner replenishing box at the toner replenishing box installation position. The modification method of the powder box can increase the capacity of toner.

Description

Technical Field

[0001] The invention relates to the technical field of electronic photographic imaging, in particular to a large-capacity powder box and a powder box modification method. Background Art

[0002] There is a kind of toner cartridge that wastes a lot of space due to the large gap between the developer cartridge and the drum cartridge and the large handle size. At the same time, due to the limitation of the overall structure of the toner cartridge and the space of the printer, the toner cartridge has a small toner bin space, and the toner capacity is low, resulting in a low print page yield. When the end user uses up the toner in the toner cartridge, the photosensitive drum of the toner cartridge can continue to be used, and other components in the toner cartridge can continue to be used. If the toner cartridge is discarded, it will cause unnecessary waste of components such as the photosensitive drum, and the user also needs to buy a new toner cartridge, which results in a high cost for the end user. Summary of the invention

[0003] The first object of the present invention is to provide a method for modifying a powder box to increase the toner capacity.

[0004] The second object of the present invention is to provide a modification method for the above-mentioned powder box, so as to achieve the expansion and regeneration of the powder box capacity by modifying the powder box.

[0005] To achieve the first purpose, the present invention provides a powder box, including a developing box and a drum box, the developing box including a powder bin and a stirring rack, the stirring rack is rotatably installed in the powder bin, the drum box is arranged above the developing box, the drum box includes an upper cover, a lower shell, a cleaning scraper and a photosensitive drum, the upper cover is provided with a handle, the upper cover and the lower shell form a waste powder storage bin, the cleaning scraper and the upper cover form a waste powder collection bin, the waste powder storage bin and the waste powder collection bin are arranged along the width direction of the powder box, the waste powder collection bin is provided with a first opening and a second opening at both ends of the width direction, the photosensitive drum is located at the first opening, and the waste powder collection bin is connected with the waste powder storage bin through the second opening. The modification method includes: opening a powder replenishment port at the top of the powder bin; cutting the upper cover and removing the extension part including the handle on the upper cover, the new upper cover forms a toner replenishment box installation position at the cutting position; adding a toner replenishment box, sealingly docking the supply port at the bottom of the toner replenishment box with the powder replenishment port, and installing the toner replenishment box at the toner replenishment box installation position.

[0006] It can be seen from the above scheme that by adding a toner refill box above the developer box to expand the capacity of the toner bin, thereby increasing the product's print page output, improving the product's effective cost of use for end users, and improving user convenience.

[0007] A preferred solution is that the modification method further comprises: removing the lower shell and sealing the second opening.

[0008] It can be seen that by removing the lower shell to remove the waste toner storage bin, and by sealing the second opening, the waste toner removed from the photosensitive drum by the cleaning blade is stored in the waste toner collection bin, which can further increase the volume of the toner replenishing box.

[0009] A preferred solution is that the modification method further comprises: installing a scraper on the stirring frame, and the scraper extends from the powder replenishing port.

[0010] It can be seen that during the rotation of the stirring frame, the scraper intermittently extends from the powder replenishing port into the toner replenishing box to loosen the toner near the supply port, thereby preventing the toner from agglomerating and blocking the supply port.

[0011] A preferred solution is that the bottom wall of the toner supply box is inclined toward the supply port.

[0012] It can be seen that the bottom wall near the supply port is generally in an inverted cone shape, ensuring that the toner can smoothly enter the supply port along the bottom wall under the action of its own gravity, ensuring that the toner in the toner refill box can be fully utilized.

[0013] A preferred solution is that a first powder adding port is provided on the end wall of the toner refill box, a second powder adding port is provided on the end wall of the powder bin, and the first powder adding port and the second powder adding port are located on the same side of the powder box. An end cover is provided outside the powder bin, the end cover covers the second powder adding port, a mounting hole is provided at a position of the end cover opposite to the second powder adding port, a chip and a chip holder are provided in the mounting hole, the chip holder is detachably fixedly connected to the end cover, and the chip is mounted on the chip holder.

[0014] It can be seen that the powder adding port on the existing powder box is located on the end wall of the powder bin, and the powder adding port is covered by an end cover arranged outside the end wall of the powder bin. When the toner in the powder box is used up and powder needs to be added, the end cover of the powder box must be removed. Such a structure is troublesome to disassemble and install, and because the components on the powder box such as the developing roller and the driving force transmission gear are assembled with the end cover, these components cannot be restored to their original positions after the end cover is disassembled and reassembled, thereby affecting printing.

[0015] When powder needs to be added to the powder box, powder can be added to the toner refill box through the first powder adding port, and powder can be added to the developer box through the second powder adding port. Since the chip holder is detachably mounted on the end cover, when powder needs to be added to the developer box, it is only necessary to remove the chip holder and the sealing cover of the second powder adding port, so that the powder adding operation can be performed without removing the end cover.

[0016] To achieve the above-mentioned second purpose, the present invention provides a powder box, including a developer box, a drum box and a toner replenishing box, the developer box includes a powder bin and a stirring frame, the stirring frame is rotatably installed in the powder bin, and a powder replenishing port is provided on the top of the powder bin; the drum box and the toner replenishing box are both installed above the developer box and arranged along the width direction of the developer box; a supply port is provided at the bottom of the toner replenishing box, and the supply port is sealedly connected to the powder replenishing port.

[0017] A preferred solution is that the drum box includes an upper cover, a lower shell, a cleaning scraper and a photosensitive drum. The upper cover and the lower shell form a waste powder storage bin, and the cleaning scraper and the upper cover form a waste powder collecting bin. The waste powder storage bin and the waste powder collecting bin are arranged along the width direction of the powder box. The waste powder collecting bin is respectively provided with a first opening and a second opening at both ends in the width direction. The photosensitive drum is located at the first opening, and the waste powder collecting bin is connected with the waste powder storage bin through the second opening. The toner replenishing box is arranged on the side of the drum box opposite to the photosensitive drum.

[0018] A preferred solution is that the drum box includes an upper cover, a cleaning scraper, a photosensitive drum and a sealing member, the cleaning scraper and the upper cover form a waste toner collection bin, the waste toner collection bin is respectively provided with a first opening and a second opening at both ends in the width direction, the photosensitive drum is located at the first opening, the sealing member seals the second opening, and the toner replenishing box is arranged on one side of the second opening of the drum box.

[0019] A preferred solution is that the bottom wall of the toner supply box is inclined toward the supply port.

[0020] A preferred solution is that a scraper is provided on the stirring frame at a position opposite to the powder supply port, and the scraper can extend into the supply port. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of an existing powder box.

[0022] Figure 2 It is a structural exploded view of an existing powder box.

[0023] Figure 3 It is a cross-sectional view of an existing powder box.

[0024] Figure 4 2 is a structural diagram of a powder box embodiment of the present invention.

[0025] Figure 5 1 is a structural exploded view of a powder box embodiment of the present invention.

[0026] Figure 6 1 is a perspective view of a toner refill box in an embodiment of a powder box of the present invention.

[0027] Figure 7 2 is a cross-sectional view of a toner refill box in an embodiment of a toner box of the present invention.

[0028] Figure 8 It is a cross-sectional view of an embodiment of a powder box of the present invention.

[0029] Fig. 9 1 is a structural exploded view of the end cover, chip holder and chip in the powder box embodiment of the present invention.

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0031] Powder box and modification method thereof first embodiment

[0032] See also Figures 1 to 3 As shown, the existing powder box 10 includes a developer box 11 and a drum box 12, the developer box 11 includes a powder bin 111 and a stirring frame 112, the stirring frame 112 is rotatably installed in the powder bin 111, the drum box 12 is arranged above the developer box 11, the drum box 12 includes an upper cover 121, a lower shell 122, a cleaning scraper 123 and a photosensitive drum 124, the upper cover 121 is provided with a handle 1211, the upper cover 121 and the lower shell 122 surround a waste powder storage bin 125, the cleaning scraper 123 and the upper cover 121 surround a waste powder collecting bin 126, the waste powder storage bin 125 and the waste powder collecting bin 126 are arranged along the width direction of the powder box 10, and the waste powder collecting bin 126 is respectively provided with a first opening 1261 and a second opening 1262 at both ends of the width direction, the photosensitive drum 124 is located at the first opening 1261, and the waste powder collecting bin 126 is connected to the waste powder storage bin 125 through the second opening 1262.

[0033] See also Figures 4 to 6 The modified new powder box 20 includes a developer box 2, a drum box 3 and a toner supply box 4. The developer box 2 includes a powder bin 21 and a stirring frame 22. The stirring frame 22 is rotatably installed in the powder bin 21. The top of the powder bin 21 is provided with two powder supply ports 211, and the two powder supply ports 211 are respectively arranged at the two ends of the length direction of the powder bin 21. The drum box 3 and the toner supply box 4 are both installed above the developer box 2 and arranged along the width direction of the developer box 2. The bottom of the toner supply box 4 is provided with two supply ports 41, and one supply port 41 is sealedly connected to one powder supply port 211. The toner supply box 4 is provided with a handle 42, and the handle 42 is located on the side of the developer box 2 opposite to the drum box 3.

[0034] See also Figure 7 The supply port 41 is in the shape of a cylinder that protrudes outward from the bottom wall 40 of the toner replenishing box 4. The contour of the powder replenishing port 211 is the same as the contour of the supply port 41, so that when the supply port 41 is inserted into the powder replenishing port 211, the two can be ensured to be sealed and connected. In this embodiment, the cross-sections of both are trapezoidal. The peripheral wall of the supply port 41 is provided with a first snap 411, and the first snap 411 protrudes outward from the outer peripheral wall of the supply port 41. The first snap 411 extends into the powder replenishing port 211 and engages with the developer box 2. Slots 412 are provided on both sides of the first snap 411 on the supply port 41, and the slots 412 extend from the free end wall 410 of the supply port 41 toward the bottom wall of the toner replenishing box 4. Figure 6As shown, the powder replenishing port 211 is provided with a first sealing member 212 at a position between the powder replenishing port 211 and the toner replenishing box 4. The first sealing member 212 surrounds the supply port 41 to prevent toner from leaking from the position where the supply port 41 and the powder replenishing port 211 are connected. A second buckle 45 is provided on the bottom wall of the toner replenishing box 4, and the developer box 2 is provided with a snap-fitting portion 23. The second buckle 45 is snap-fitted with the snap-fitting portion 23. The second buckle 45 is provided close to the supply port 41, so that the sealing property of the connection between the supply port 41 and the powder replenishing port 211 can be further improved.

[0035] like Figure 6 and Figure 8 As shown, the bottom wall 40 of the toner supply box 4 includes a first inclined wall 401, a second inclined wall 402, a third inclined wall 403 and a fourth inclined wall 404. The second inclined wall 402 and the third inclined wall 403 are connected between the first inclined wall 401 and the fourth inclined wall 404 in the width direction of the toner supply box 4. The second inclined wall 402 and the third inclined wall 403 are arranged along the length direction of the toner supply box 4. One supply port 41 is set at the end of the second inclined wall 402 in the length direction, and the second inclined wall 402 is inclined toward the supply port 41; another supply port 41 is set at the end of the third inclined wall 403 in the length direction, and the third inclined wall 403 is inclined toward the supply port 41. The first inclined wall 401 and the fourth inclined wall 404 are both inclined toward the second inclined wall 402. The second clip 45 is arranged at a position of the first inclined wall 401 close to the supply port 41, and the second clip 45 includes a vertical extension portion 451 and a hook portion 452. The hook portion 452 is located at the bottom end of the vertical extension portion 451, and the engaging portion 23 protrudes horizontally outward from the outer peripheral wall of the powder bin 21, and the hook portion 452 and the engaging portion 23 are engaged with each other.

[0036] The drum box 3 includes an upper cover 31, a cleaning scraper 32, a photosensitive drum 33 and a seal 34. The cleaning scraper 32 and the upper cover 31 form a waste powder collecting bin 35. The waste powder collecting bin 35 is provided with a first opening 351 and a second opening 352 at both ends in the width direction. The photosensitive drum 33 is located at the first opening 351. The seal 34 seals the second opening 352. The toner replenishing box 4 is arranged on one side of the second opening 352 of the drum box 3.

[0037] A scraper 221 is provided on the stirring frame 22 at a position opposite to the powder replenishing port 211. During the rotation of the stirring frame 22, the scraper 221 periodically extends from the powder replenishing port 211 into the supply port 41, thereby loosening the toner at the supply port 41 and ensuring that the toner in the toner replenishing box 4 can smoothly enter the powder bin 21.

[0038] See also Figure 4 and Fig. 9A first powder adding port 43 is provided on the end wall of the toner supply box 4, and a second powder adding port 24 is provided on the end wall of the powder bin 21. The first powder adding port 43 and the second powder adding port 24 are located on the same side of the powder box 20. An end cover 5 is provided outside the powder bin 21, and the end cover 5 covers the second powder adding port 24. A mounting hole 51 is provided at a position opposite to the second powder adding port 24. A chip 52 and a chip bracket 53 are provided in the mounting hole 51. The chip bracket 53 is detachably fixedly connected to the end cover 5, and the chip 52 is mounted on the chip bracket 53.

[0039] See also Figure 2 and Figure 5 The modification method includes the following steps: First, drill a powder replenishing port 211 at the top of the powder bin 111. Next, cut the upper cover 121 and remove the extension portion 1212 including the handle 1211 on the upper cover 121. The extension portion 1212 includes a portion that forms a waste powder storage bin 125 with the lower shell 122. The new upper cover 31 forms a toner replenishing box mounting position 311 at the cutting position. Next, remove the lower shell 122 and seal the second opening 1262. Next, install a scraper 221 on the stirring frame 112, and the scraper 221 extends from the powder replenishing port 211. Next, add a toner replenishing box 4, install the toner replenishing box 4 on the toner replenishing box mounting position 311, and make the supply port 41 at the bottom of the toner replenishing box 4 sealably dock with the powder replenishing port 211.

[0040] Powder box and modification method thereof second embodiment

[0041] As an explanation of the second embodiment of the powder box of the present invention, only the differences from the first embodiment of the powder box described above are explained below.

[0042] In this embodiment, the drum box includes an upper cover, a lower shell, a cleaning scraper and a photosensitive drum. The upper cover and the lower shell form a waste powder storage bin, and the cleaning scraper and the upper cover form a waste powder collecting bin. The waste powder storage bin and the waste powder collecting bin are arranged along the width direction of the powder box. The waste powder collecting bin is respectively provided with a first opening and a second opening at both ends in the width direction. The photosensitive drum is located at the first opening, and the waste powder collecting bin is connected with the waste powder storage bin through the second opening. The toner replenishing box is arranged on the side of the drum box opposite to the photosensitive drum.

[0043] Compared with the first embodiment of the powder box, the modification method of the powder box in this embodiment eliminates the step of cutting the upper cover, and adopts a new upper cover and lower shell. The volume of the lower shell is smaller than the volume of the existing lower shell 122, thereby reducing the area occupied by the lower shell. At the same time, the upper cover does not have a handle, and the toner replenishing box is installed on the side of the drum box close to the lower shell in the width direction, thereby making full use of the space above the developer box and increasing the capacity of the powder box.

[0044] As can be seen from the above, by modifying the existing powder cartridge and adding a toner refill box above the developer cartridge to expand the capacity of the powder bin, the product's print page output is increased, the product is improved to effectively reduce the end user's usage cost, and at the same time improve the user's convenience.

[0045] 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 method for modifying a toner cartridge, the toner cartridge including a developing cartridge and a drum cartridge, the developing cartridge including a powder bin and a stirring frame rotatably installed in the powder bin, the drum cartridge being disposed above the developing cartridge, the drum cartridge including an upper cover, a lower housing, a cleaning blade and a photosensitive drum, the upper cover being provided with a handle, the upper cover and the lower housing enclosing a waste toner storage bin, the cleaning blade and the upper cover enclosing a waste toner collection bin, the waste toner storage bin and the waste toner collection bin being arranged along the width direction of the toner cartridge, the waste toner collection bin being provided with a first opening and a second opening at both ends in the width direction, the photosensitive drum being located at the first opening, and the waste toner collection bin communicating with the waste toner storage bin through the second opening; Characterized in that, the modification method includes: opening a powder replenishment port at the top of the powder bin; cutting the upper cover and removing the extension portion including the handle on the upper cover, and a toner replenishment cartridge installation position being formed at the cutting position on the new upper cover; installing a scraping blade on the stirring frame, the scraping blade extending out from the powder replenishment port; adding a toner replenishment cartridge, sealingly docking the supply port at the bottom of the toner replenishment cartridge with the powder replenishment port, and installing the toner replenishment cartridge at the toner replenishment cartridge installation position; a first buckle is provided on the peripheral wall of the supply port, the first buckle protruding outward from the outer peripheral wall of the supply port, and the first buckle extending into the powder replenishment port and engaging with the developing cartridge; a second buckle is provided on the bottom wall of the toner replenishment cartridge, the developing cartridge is provided with an engaging portion, and the second buckle is engaged with the engaging portion, and the second buckle is disposed close to the supply port.

2. The method for modifying a toner cartridge according to claim 1, characterized in that: the modification method further includes: removing the lower housing and sealing the second opening.

3. The method for modifying a toner cartridge according to claim 1, characterized in that: the bottom wall of the toner replenishment cartridge is inclined towards the supply port.

4. The method for modifying a toner cartridge according to any one of claims 1 to 3, characterized in that: a first powder adding port is opened on the end wall of the toner replenishment cartridge, a second powder adding port is opened on the end wall of the powder bin, and the first powder adding port and the second powder adding port are located on the same side of the toner cartridge; an end cover is provided outside the powder bin, the end cover covering the second powder adding port, an installation hole being opened at a position of the end cover opposite to the second powder adding port, a chip and a chip bracket being provided in the installation hole, the chip bracket being detachably and fixedly connected to the end cover, and the chip being installed on the chip bracket.

5. A toner cartridge, characterized in that, including a developing cartridge, a drum cartridge and a toner replenishment cartridge; the developing cartridge includes a powder bin and a stirring frame rotatably installed in the powder bin, and a powder replenishment port is provided at the top of the powder bin; the drum cartridge and the toner replenishment cartridge are both installed above the developing cartridge and arranged along the width direction of the developing cartridge; the bottom of the toner replenishment cartridge is provided with a supply port, and the supply port is sealingly docked with the powder replenishment port; a scraping blade is provided at a position on the stirring frame opposite to the powder replenishment port, and the scraping blade can extend into the supply port; The peripheral wall of the supply port is provided with a first buckle, the first buckle protrudes outward from the peripheral wall of the supply port, the first buckle extends into the powder replenishing port and is engaged with the developing box; A second buckle is arranged on the bottom wall of the toner supply box, and the developing box is provided with a snap-fitting portion, the second buckle is snap-fitted with the snap-fitting portion, and the second buckle is arranged close to the supply port.

6. The powder box according to claim 5, Features: The drum box includes an upper cover, a lower shell, a cleaning scraper and a photosensitive drum, the upper cover and the lower shell form a waste powder storage bin, the cleaning scraper and the upper cover form a waste powder collecting bin, the waste powder storage bin and the waste powder collecting bin are arranged along the width direction of the powder box, the waste powder collecting bin is respectively provided with a first opening and a second opening at both ends in the width direction, the photosensitive drum is located at the first opening, the waste powder collecting bin is connected with the waste powder storage bin through the second opening, and the toner replenishing box is arranged on the side of the drum box opposite to the photosensitive drum.

7. The powder box according to claim 5, Features: The drum box includes an upper cover, a cleaning scraper, a photosensitive drum and a sealing member. The cleaning scraper and the upper cover form a waste toner collection bin. The waste toner collection bin is provided with a first opening and a second opening at both ends in a width direction, respectively. The photosensitive drum is located at the first opening. The sealing member seals the second opening. The toner replenishing box is arranged on one side of the second opening of the drum box.

8. The powder box according to any one of claims 5 to 7, Features: The bottom wall of the toner supply box is inclined toward the supply port.

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