A general type toner cartridge end cover of a Ricoh MPC2503
By designing the Ricoh MPC2503 universal toner cartridge end cap, the problem of poor toner cartridge versatility was solved, enabling stable installation of the toner cartridge and smooth toner supply, reducing the difficulty of user selection and production costs, and improving the efficiency of copier use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG NEW TECH A ENTERPRISE
- Filing Date
- 2025-10-22
- Publication Date
- 2026-07-21
AI Technical Summary
The end cap locking design of existing Ricoh copier toner cartridges varies significantly, making it impossible for different generations and series of toner cartridges to be interchangeable. This increases mold development and production costs, making it difficult and expensive for users to choose the right cartridge.
A universal toner cartridge end cap for Ricoh MPC2503 was designed, comprising a receiving cylinder, a fixing cap assembly, a locking assembly, and a toner dispenser. The toner is guided to move by a threaded groove, and the locking assembly assists in limiting the movement, ensuring stable installation of the end cap with the copier and smooth toner supply.
This improves the versatility of toner cartridges, reduces the difficulty and cost for users to purchase them, ensures stable installation of toner cartridges and continuous toner supply, avoids chip damage, and improves the normal operating efficiency of copiers.
Smart Images

Figure CN224536349U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of toner cartridge technology, specifically a Ricoh MPC2503 universal toner cartridge end cap. Background Technology
[0002] In the field of copier consumables, toner cartridges are core consumables, and their compatibility with the copier host directly affects the normal operation and operating costs of the copier equipment. However, the existing design of Ricoh copier toner cartridges has significant limitations in terms of compatibility and versatility.
[0003] While the toner cartridges used in Ricoh copiers are generally identical in appearance across different generations of copiers, the key difference lies in the end cap positioning design. Not only are the end cap positions different between generations, but even within the same generation, the positions of the four different colored toner cartridges vary. To ensure precise compatibility between the toner cartridges and the copier, a toner cartridge slot is provided. Next to the slot are not only positioning grooves but also differentiating grooves for each of the four colors, with each color's different groove structure. Based on this slot design, each color toner cartridge's end cap must have a locking block that mates with the positioning groove and a differentiating block that mates with the corresponding color's differentiating groove. This one-to-one design means that the end caps of toner cartridges from different generations and series of copiers are completely incompatible. Each type of end cap needs to be developed separately and produced using a separate mold, which significantly increases the company's mold development and manufacturing costs, impacting factory production, processing, and subsequent shipping and distribution. From the user's perspective, the incompatibility between toner cartridges severely limits the user's choices. Users need to accurately identify the copier series, generation, and required toner cartridge color in order to purchase a compatible product. This is not only cumbersome but may also result in the purchased toner cartridge being unusable due to model misidentification, further increasing the user's time and economic costs. This exacerbates the problem of poor toner cartridge compatibility, making it difficult to use toner cartridges from different brands and models interchangeably. Utility Model Content
[0004] The purpose of this utility model is to provide a universal toner cartridge end cap for Ricoh MPC2503, which has the advantages of improving the versatility of toner cartridges and reducing the difficulty for users to choose, and solves the problem of poor versatility of toner cartridges in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A Ricoh MPC2503 universal toner cartridge end cap includes a receiving cylinder. A fixing cap assembly is installed at the upper opening of the receiving cylinder. The fixing cap assembly includes a cap body fixedly connected to the upper opening of the receiving cylinder. A groove is formed on the outer wall of the cap body, and a locking assembly is installed in the groove. The fixing cap assembly also includes a sliding seat and a locking seat fixedly connected to the outer wall of the cap body. A chip cover is fixedly connected to the upper edge of the cap body, and a toner dispenser is fixedly connected to the inner wall of the cap body.
[0006] Preferably, the outer wall of the accommodating cylinder is provided with a threaded groove, which extends from the upper opening of the accommodating cylinder to the bottom of the accommodating cylinder.
[0007] It is worth noting that the threaded grooves on the outer wall of the container can form a spiral channel on the inner wall of the container, which can guide the movement of toner and facilitate the toner dispenser to guide the toner into the copier.
[0008] Preferably, the positioning component includes a fixing block 1, which is located inside the groove and is interference-fitted with the groove.
[0009] It is worth noting that the locking component can assist in limiting the fixed cover component, thereby facilitating the pushing and installation of the fixed cover component into the corresponding storage slot of the copier. The fixing block can limit and fix it in the slot, ensuring the stability of the locking component.
[0010] Preferably, the positioning component also includes a protective plate fixed to the front end of the fixing block, with the rear end of the protective plate fitting against the outer wall of the cover.
[0011] It is worth noting that the protective plate can be fixed to the outer wall of the cover by fixing block one. The protective plate can protect the outer wall of the cover, so that the outer wall of the cover is only equipped with the protective plate except for the necessary sliding seat and locking seat. This eliminates the protrusion limiting method and eliminates the problem that the existing copier toner cartridges cannot be used universally due to the protrusion limitation.
[0012] Preferably, the positioning component includes a second fixing block, which is located in the groove and is interference-fitted with the groove. The positioning component also includes a limiting plate installed at the front end of the second fixing block.
[0013] It is worth noting that the locking component can assist in limiting the fixed cover component, so that the fixed cover component can be correctly installed into the corresponding storage slot. The second fixing block, together with the slot, can limit the limiting plate to the outer wall of the cover, thereby limiting the installation of the fixed cover component.
[0014] Preferably, the rear end of the limiting plate is fixedly connected to a slider, and the front end of the second fixing block has several grooves that are equidistant from top to bottom, and the slider is slidably installed in the grooves.
[0015] It is worth noting that by pushing the slider to move left and right along the inner wall of the groove, the position of the limiting plate can be adjusted according to the needs of the storage groove, so that the limiting plate can be adapted to the limiting needs of the corresponding storage groove, and can be adapted to the limiting requirements under different conditions.
[0016] Preferably, the lower inner wall of the slide is provided with several equally spaced slots, and the positioning component also includes a limiting block installed in the slide. The lower end of the limiting block is fixedly connected to a locking block, which is adapted to the slot.
[0017] Preferably, the slider has limit blocks at both ends, and the outer wall of the limit blocks fits against the outer wall of the slider.
[0018] It is worth noting that the limiting block can be fixed by engaging the locking block at the lower end of the limiting block with the locking groove on the inner wall of the slide. Installing a limiting block at each end of the slider allows the two limiting blocks to fit together and clamp the slider, fixing the limiting plate in the corresponding position and improving the stability of the limiting plate during use.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a toner-containing cylinder to hold toner, and a fixing cover assembly installed at the opening of the cylinder to seal the opening and facilitate assembly with the corresponding storage slot in the copier. The cover body, as the basic structure of the fixing cover assembly, supports the sliding seat, locking seat, chip cover, toner dispenser, and locking component, and is securely connected to the cylinder, achieving structural integration of all components. The slot provides installation space for the locking component, ensuring its stable fixation to the outer wall of the cover body. The locking component also provides auxiliary positioning for the fixing cover assembly, ensuring correct installation into the copier. The storage slot can accommodate the limiting requirements of different storage slots; the sliding seat is used to assist the fixed cover assembly in sliding adjustment or positioning within the copier's storage slot, facilitating smooth installation of the fixed cover assembly; the locking seat is used to lock the fixed cover assembly to the storage slot after it is installed, preventing the fixed cover assembly from loosening or falling off during use; the chip cover is used to protect the toner cartridge chip at the top of the cover, preventing damage from impacts, dust, etc., and ensuring normal chip operation; the toner dispenser guides the toner in the container into the copier, ensuring a stable and smooth supply of toner to the copier and guaranteeing normal copying operations. Attached Figure Description
[0020] Figure 1 This is an isometric view of the overall structure of this utility model; Figure 2 This is a three-dimensional structural disassembly diagram of the fixing cover assembly of this utility model; Figure 3 This is a three-dimensional structural diagram of the card slot component of this utility model; Figure 4 This is a three-dimensional structural disassembly diagram of the card slot component of this utility model; Figure 5 This is a three-dimensional structural diagram of the card slot component of this utility model; Figure 6 This is a three-dimensional structural disassembly diagram of the card slot component of this utility model.
[0021] Reference numerals in the attached drawings: 1. Receiving cylinder; 201. Cover; 202. Sliding seat; 203. Locking seat; 204. Groove; 3. Chip cover; 4. Powder dispenser; 501. Fixing block one; 502. Protective plate; 601. Fixing block two; 602. Limiting plate; 603. Slide groove; 604. Slot; 605. Sliding block; 606. Locking block; 607. Limiting block. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] To address the issue of poor versatility of powder cartridges in existing technologies, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-6 ; A universal toner cartridge end cap for Ricoh MPC2503 includes a receiving cylinder 1. A fixing cap assembly is installed at the upper opening of the receiving cylinder 1. The fixing cap assembly includes a cap body 201 fixedly connected to the upper opening of the receiving cylinder 1. A groove 204 is formed on the outer wall of the cap body 201. A locking assembly is installed in the groove 204. The fixing cap assembly also includes a sliding seat 202 and a locking seat 203 fixedly connected to the outer wall of the cap body 201. A chip cover 3 is fixedly connected to the upper edge of the cap body 201. A toner dispenser 4 is fixedly connected to the inner wall of the cap body 201.
[0024] The receiving cylinder 1 can hold toner. The fixing cover assembly is installed at the opening at the upper end of the receiving cylinder 1 to seal the opening and facilitates the overall installation with the corresponding storage slot of the copier. The cover body 201 serves as the basic structure of the fixing cover assembly, supporting the sliding seat 202, locking seat 203, chip cover 3, toner dispenser 4, and locking assembly. It can also be firmly connected to the receiving cylinder 1, achieving structural integration of all components. The slot 204 provides installation space for the locking assembly and, through its cooperation with the locking assembly, ensures that the locking assembly can be stably fixed to the outer wall of the cover body 201. The locking assembly is used to provide auxiliary limiting for the fixing cover assembly, ensuring that the fixing cover assembly can be correctly installed into the copier. The printer's storage slot can accommodate the limiting requirements of different storage slots. The sliding seat 202 is used to assist the fixed cover assembly in sliding adjustment or positioning within the printer's storage slot, facilitating the smooth installation of the fixed cover assembly. The locking seat 203 is used to lock the fixed cover assembly to the storage slot after it is installed, preventing the fixed cover assembly from loosening or falling off during use. The chip cover 3 is used to protect the toner cartridge chip at the top of the cover 201, preventing damage to the chip from impacts, dust, etc., and ensuring the chip's normal operation. The toner dispenser 4 is used to guide the toner in the container 1 into the printer, ensuring a stable and smooth supply of toner to the printer and guaranteeing normal copying operations.
[0025] Please see Figure 1 and Figure 2 The outer wall of the accommodating cylinder 1 is provided with a threaded groove, which extends from the upper opening of the accommodating cylinder 1 to the bottom of the accommodating cylinder 1. Through the threaded groove on the outer wall of the accommodating cylinder 1, a spiral channel can be formed on the inner wall of the accommodating cylinder 1, which can guide the movement of toner and facilitate the toner dispenser 4 to guide the toner into the copier.
[0026] Example 1: Please refer to Figure 3 and Figure 4 The positioning component includes a fixing block 501, which is located inside the groove 204 and is interference-fitted with the groove 204. The positioning component can assist in limiting the positioning of the fixing cover component, thereby facilitating the pushing and installation of the fixing cover component into the corresponding storage slot of the copier. The fixing block 501 can be fixed in the groove 204 to ensure the stability of the positioning component.
[0027] The locking assembly also includes a protective plate 502 fixed to the front end of the fixing block 501, and the rear end of the protective plate 502 is attached to the outer wall of the cover 201. The protective plate 502 can be fixed to the outer wall of the cover 201 by the fixing block 501. The protective plate 502 can protect the outer wall of the cover 201, so that the outer wall of the cover 201 is only provided with the protective plate 502 except for the necessary sliding seat 202 and locking seat 203. This eliminates the protrusion limiting method and eliminates the problem that the existing copier toner cartridges cannot be universally used due to the protrusion limitation.
[0028] Example 2: Please refer to Figure 5 and Figure 6 The positioning component includes a second fixing block 601, which is located inside the groove 204 and is interference-fitted with the groove 204. The positioning component also includes a limiting plate 602 installed at the front end of the second fixing block 601. The positioning component can assist in limiting the positioning of the fixed cover component, so that the fixed cover component can be correctly installed into the corresponding storage groove. The second fixing block 601, together with the groove 204, can limit and fix the limiting plate 602 to the outer wall of the cover 201, thereby limiting the installation of the fixed cover component.
[0029] The rear end of the limiting plate 602 is fixedly connected to a slider 605, and the front end of the fixing block 601 has several grooves 603 that are equidistant from top to bottom. The slider 605 is slidably installed in the grooves 603. By pushing the slider 605 to move left and right along the inner wall of the grooves 603, the position of the limiting plate 602 can be adjusted according to the needs of the storage slot, so that the limiting plate 602 can be adapted to the limiting needs of the corresponding storage slot and can be adapted to the limiting requirements under different conditions.
[0030] The lower inner wall of the slide groove 603 is provided with several equally spaced slots 604. The positioning assembly also includes a limiting block 607 installed in the slide groove 603. A locking block 606 is fixedly connected to the lower end of the limiting block 607, and the locking block 606 is adapted to the slot 604. The slider 605 is provided with limiting blocks 607 at both ends, and the outer wall of the limiting block 607 is in contact with the outer wall of the slider 605. The limiting block 607 can be fixed by the locking block 606 at the lower end of the limiting block 607 engaging with the slot 604 in the inner wall of the slide groove 603. A limiting block 607 is installed at each of the left and right ends of the slider 605, so that the two limiting blocks 607 fit together and clamp the slider 605, fixing the limiting plate 602 in the corresponding position and improving the stability of the limiting plate 602 during use.
[0031] Working principle: Toner cartridge installation and positioning stage: First, align the toner-filled container 1 with the copier's storage slot. At this time, the sliding seat 202 on the outer wall of the cover 201 in the fixing cover assembly slides into the inner wall of the storage slot, assisting the fixing cover assembly in smoothly sliding the container 1 into the storage slot; simultaneously, the locking assembly provides auxiliary limiting; if it is the locking structure of Embodiment 1, the fixing block 501 is fixed to the outer wall of the cover 201 by interference fit with the slot 204, and its front protective plate 502 fits against the outer wall of the cover 201, which not only avoids collision damage to the outer wall of the cover 201, but also eliminates the need for the traditional protrusion limiting structure. To eliminate installation limitations caused by mismatched protrusions in the storage slot and ensure compatibility, if using the locking structure of Embodiment 2, first push the slider 605 at the rear end of the limiting plate 602 according to the limiting requirements of the storage slot, so that the slider 605 slides left and right along the sliding groove 603 at the front end of the fixing block 2 601. After adjusting to the appropriate position, place the limiting block 607 into the sliding groove 603, so that the locking block 606 at the lower end of the limiting block 607 engages with the corresponding locking groove 604. By having the two limiting blocks 607 respectively adhere to and clamp the two ends of the slider 605, the limiting plate 602 is fixed, thereby accurately adapting to the limiting requirements of the storage slot. After the fixing cover assembly is in place, the locking seat 203 on the outer wall of the cover 201 engages with the locking structure on the inner wall of the storage slot, locking the fixing cover assembly and the receiving cylinder 1 together in the storage slot to prevent loosening and falling off during use.
[0032] Toner delivery stage: When the copier is working, it needs to obtain toner from the container 1. At this time, the spiral channel formed by the threaded groove on the outer wall of the container 1 and its inner wall plays a role in guiding the toner in the container 1 to move towards the cover 201. Subsequently, the toner dispenser 4 fixed to the inner wall of the cover 201 is connected to the toner collection structure of the copier, and the toner guided to the cover 201 by the spiral channel is stably delivered to the inside of the copier, ensuring the continuity and smoothness of toner supply during the copying process.
[0033] During the use of the toner cartridge, the chip cover 3 on the upper edge of the cover 201 covers the toner cartridge chip, preventing the chip from being damaged by external impacts, dust adhesion, etc., and ensuring that the chip can normally communicate with the copier for data. At the same time, the protective plate 502 in Embodiment 1 and the limiting plate 602 in Embodiment 2 continuously protect the outer wall of the cover 201. Together with the locking action of the locking seat 203 and the limiting effect of the locking component, the overall stability of the receiving cylinder 1 and the fixed cover assembly is maintained, ensuring the continuous and reliable operation of the toner cartridge.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A universal toner cartridge end cap for Ricoh MPC2503, comprising a receiving cylinder (1), characterized in that, A fixed cover assembly is installed at the upper opening of the container (1). The fixed cover assembly includes a cover body (201) fixedly connected to the upper opening of the container (1). A groove (204) is opened on the outer wall of the cover body (201). A locking assembly is installed in the groove (204). The fixed cover assembly also includes a sliding seat (202) and a locking seat (203) fixedly connected to the outer wall of the cover body (201). A chip cover (3) is fixedly connected to the upper edge of the cover body (201). A powder dispenser (4) is fixedly connected to the inner wall of the cover body (201).
2. The Ricoh MPC2503 universal toner cartridge end cap according to claim 1, characterized in that, The outer wall of the container (1) is provided with a threaded groove, which extends from the upper opening of the container (1) to the bottom of the container (1).
3. The Ricoh MPC2503 universal toner cartridge end cap according to claim 1, characterized in that, The positioning component includes a fixing block (501), which is located inside the groove (204) and is interference-fitted with the groove (204).
4. The Ricoh MPC2503 universal toner cartridge end cap according to claim 3, characterized in that, The positioning assembly also includes a protective plate (502) fixed to the front end of the fixing block (501), with the rear end of the protective plate (502) fitting against the outer wall of the cover (201).
5. The Ricoh MPC2503 universal toner cartridge end cap according to claim 1, characterized in that, The positioning assembly includes a second fixing block (601), which is located inside the groove (204). The second fixing block (601) is press-fitted with the groove (204). The positioning assembly also includes a limiting plate (602) installed at the front end of the second fixing block (601).
6. The Ricoh MPC2503 universal toner cartridge end cap according to claim 5, characterized in that, The rear end of the limiting plate (602) is fixedly connected to a slider (605), and the front end of the fixing block two (601) is provided with several grooves (603) with equal vertical spacing. The slider (605) is slidably installed in the grooves (603).
7. The Ricoh MPC2503 universal toner cartridge end cap according to claim 6, characterized in that, The lower inner wall of the slide (603) is provided with several equally spaced slots (604). The positioning assembly also includes a limiting block (607) installed in the slide (603). The lower end of the limiting block (607) is fixedly connected to a locking block (606), which is adapted to the slots (604).
8. The Ricoh MPC2503 universal toner cartridge end cap according to claim 7, characterized in that, Limiting blocks (607) are provided at both ends of the slider (605), and the outer wall of the limiting block (607) is in contact with the outer wall of the slider (605).