CN218728616U

CN218728616U - Selenium drum

Info

Publication number: CN218728616U
Application number: CN202222873232.0U
Authority: CN
Inventors: 石磊; 韩进龙; 董英杰
Original assignee: Nanjing Orange Fruit Advanced Technology Co ltd; BEIJING LASER HI Tech CO Ltd
Current assignee: Nanjing Orange Fruit Advanced Technology Co ltd; BEIJING LASER HI Tech CO Ltd
Priority date: 2022-10-29
Filing date: 2022-10-29
Publication date: 2023-03-24
Anticipated expiration: 2032-10-29

Abstract

The utility model provides a selenium drum, which comprises a photosensitive drum, a carbon powder bin and a waste powder bin, and comprises a separated photosensitive drum protective cover for covering the photosensitive drum; the separated photosensitive drum protective cover is provided with a first clamping structure; a second clamping structure matched with the first clamping structure is arranged on the toner cartridge; when the separated photosensitive drum protective cover is assembled on the selenium drum, the first clamping structure is fixedly connected with the second clamping structure in a clamping manner; a carbon powder expanding bin communicated with the carbon powder bin is arranged; and a waste powder expansion bin communicated with the waste powder bin is also arranged. The technical scheme of the utility model can be applied to long-life selenium drum.

Description

Selenium drum

Technical Field

The utility model relates to a laser is selenium drum for printing apparatus, especially has longer life's selenium drum.

Background

The toner cartridge for the laser printing device can realize the printing function only by consuming a developer such as carbon powder. During printing, toner needs to be transported from the toner storage container to the core of the cartridge. The toner cartridge is usually provided with an integrated toner storage container, i.e. a toner hopper, which is used for storing toner required by the toner cartridge for printing. However, the storage capacity of the toner hopper is limited, and the service life of the core component of the toner cartridge is long, so that the core component of the toner cartridge still has use value after the toner in the toner hopper is used up.

People adopt various technologies to prolong the service life of the selenium drum so as to fully utilize the use value of the core component of the selenium drum. For example, a technique of increasing the capacity of the toner hopper is employed. The basic principle of the technology is that the use value of the core component of the toner cartridge is fully utilized by increasing the use amount of the carbon powder of the toner cartridge.

However, the above-mentioned technology for prolonging the service life of the toner cartridge also brings new problems. The core component of the toner cartridge includes a photosensitive drum. The toner cartridge in the working state needs to expose the photosensitive drum for image formation. Since the photosensitive drum is a relatively fragile component, it is easily damaged and failed by external friction, and therefore, the photosensitive drum protective cover needs to be arranged to protect the photosensitive drum in a non-working state such as transportation. The existing photosensitive drum protective cover is realized by adopting a turnover structure. The cover body of the photosensitive drum protective cover is arranged on the selenium drum through the rotating arm, and the rotating arm can drive the cover body of the photosensitive drum protective cover to rotate, so that the photosensitive drum is covered or exposed. However, due to the use of the aforementioned technology for increasing the capacity of the toner hopper, the volume of the toner hopper after the capacity is increased, and the space for accommodating the toner cartridge of the laser printing device is limited, which makes the protective cover of the turnover photosensitive drum conflict with the internal components of the laser printing device or the expanded toner hopper when the turnover photosensitive drum is turned over.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the carbon dust storehouse of current convertible sensitization drum visor and laser printing equipment internals or dilatation produces the conflict, the utility model provides a selenium drum.

The technical scheme of the utility model as follows:

the toner cartridge comprises a photosensitive drum, a carbon powder bin and a waste powder bin, and comprises a separated photosensitive drum protective cover for covering the photosensitive drum; the separated photosensitive drum protective cover is provided with a first clamping structure; a second clamping structure matched with the first clamping structure is arranged on the toner cartridge; when the separated photosensitive drum protective cover is assembled on the selenium drum, the first clamping structure is fixedly connected with the second clamping structure in a clamping manner; a carbon powder expanding bin communicated with the carbon powder bin is arranged; and a waste powder expansion bin communicated with the waste powder bin is also arranged.

Optionally, the first clamping structure includes a clamping structure or a clamped structure; the second clamping structure comprises a clamped structure or a clamping structure.

Optionally, the gripping structure comprises a clip; the clamped structure includes a detent.

Optionally, the first locking structure is disposed at an end of the separated photosensitive drum protective cover in the long axis direction.

Optionally, the first fastening structure is respectively disposed at two ends of the separated photosensitive drum protective cover in the long axis direction.

Optionally, when the toner cartridge is assembled into a laser printing apparatus, the toner expansion bin is disposed above or obliquely above the toner hopper in a gravity direction.

Optionally, a laser passing gap is provided between the toner hopper and the toner hopper.

Optionally, when the toner cartridge is assembled in a laser printing apparatus, the bottom of the waste toner expansion bin is lower than the bottom of the waste toner bin in the gravity direction.

Optionally, a laser passing gap is arranged between the bottom of the waste powder expansion bin and the carbon powder bin.

The technical effects of the utility model are as follows:

the utility model discloses a toner cartridge is provided with the carbon dust extension storehouse with the carbon dust storehouse intercommunication, still is provided with the useless powder extension storehouse with useless powder storehouse intercommunication. The arrangement mode can enable the toner cartridge to prolong the service life of the toner cartridge by increasing the capacity of the carbon powder bin and the waste powder bin, and meanwhile, the waste powder increased along with more carbon powder usage amount is effectively treated. The existence of the carbon powder extension bin and the waste powder extension bin increases the external profile of the selenium drum, so that the turnover photosensitive drum protective cover in the prior art is difficult to realize the turnover function. The utility model discloses a selenium drum is provided with disconnect-type sensitization drum visor. The separated photosensitive drum protective cover is arranged on the selenium drum through a first clamping structure and a second clamping structure which are matched with each other and shields the photosensitive drum on the selenium drum. When the photosensitive drum needs to be exposed, the protective cover of the separated photosensitive drum is taken down. Therefore, the separated photosensitive drum protective cover is fixed through the clamping structure, and the separated photosensitive drum protective cover does not need to perform overturning motion. On one hand, the turnover mechanism is saved, so that the integral structure of the toner cartridge is simplified, the cost is reduced, and the reliability is enhanced; on the other hand, disconnect-type sensitization drum visor need not carry out the upset motion, just can not produce with carbon dust extension storehouse and interfere yet, has realized the utility model discloses a purpose.

Further effects of the above alternatives will be described below in conjunction with the detailed description.

Drawings

Fig. 1 is an exploded perspective view of an embodiment of a toner cartridge according to the present invention.

Fig. 2 is an assembled perspective view of the embodiment of fig. 1.

Fig. 3 is a cross-sectional view of the embodiment shown in fig. 2.

101. A waste powder bin; 102. a carbon powder expanding bin; 103. a bayonet lock; 104. clamping; 105. a separate type photosensitive drum protective cover; 301. a waste powder expansion bin; 302. laser light passes through the gap; 303. a carbon powder bin; 304. cleaning the scraper.

Detailed Description

The following describes the technical solution of the present invention in detail with reference to the embodiments shown in the drawings.

Fig. 1 shows the main structure of the toner cartridge of the present invention. The cartridge includes a photosensitive drum (not shown in the figure due to the shielding of the cartridge main body) and a separate photosensitive drum protective cover 105. The separation type photosensitive drum protective cover 105 can be detached from the main body portion of the toner cartridge. This way is different from the existing turnover type photosensitive drum protective cover. Convertible sensitization drum visor passes through the cantilever to be connected to the main part of selenium drum, and the cantilever is articulated with the main part of selenium drum for sensitization drum visor can realize covering or revealing of sensitization drum through the upset action. Fig. 1 shows a state where the separation type photosensitive drum protective cover 105 is detached from the main body of the toner cartridge; fig. 2 shows a state in which the separation type photosensitive drum protective cover 105 is fitted to the main body of the toner drum.

The clamping structure supporting the connection of the separated photosensitive drum protective cover 105 and the main body of the toner cartridge comprises clamps 104 respectively arranged at two ends of the separated photosensitive drum protective cover 105 in the long axis direction; and a detent 103 provided on the main body of the cartridge corresponding to the mating clip 104. As a connecting structure, the bayonet 103 is a cylindrical body; the clip 104 has a pair of holding arms whose ends can be elastically expanded by the pressing of the bayonet 103 of a size matching, and holds the bayonet 103 by the holding arms under the elastic force, so that the clip 104 forms a clip-fixed connection with the bayonet 3, and the detachable photosensitive drum protective cover 105 is fitted to the main body of the toner cartridge.

The technical scheme of the utility model can be applied to on the long-life selenium drum. The principle of the long-life toner cartridge is to increase the toner consumption of the toner cartridge, and the toner expansion bin 102 used in this embodiment can accommodate more toner, and the toner expansion bin 102 is communicated with the toner bin (not shown) of the toner cartridge, which is equivalent to expanding the volume of the toner bin. And with the increase of the consumption of the carbon powder, the corresponding waste powder amount also increases. For this reason, the volume of the waste powder bin 101 is also enlarged, for example, a waste powder expansion bin (not shown) communicating with the waste powder bin 101 is further provided in this embodiment. The existence of the toner hopper 102 causes a problem of conflict with the turning motion of the original turning photosensitive drum protective cover. Adopt the technical scheme of the utility model, need not overturn disconnect-type sensitization drum visor 105, only need detach with the assembly can, consequently, disconnect-type sensitization drum visor 105 can expand storehouse 102 compatibility with the carbon dust, realizes the long-life of selenium drum.

Fig. 3 shows a state in which the embodiment shown in fig. 2 is assembled into a laser printing apparatus, and illustrates the internal structure of the embodiment by way of a cross-sectional view. As can be seen in FIG. 3, the toner expansion bin 102 is located diagonally above the toner hopper 303 and toner in the toner expansion bin 102 can enter the toner hopper 303 under the influence of gravity. A laser pass through gap 302 is provided between the toner expansion bin 102 and the toner hopper 303. The laser light passes through the gap 302 for laser light projected by the laser printing apparatus to pass through. The line in fig. 3 where the laser passes through the gap 302 with an arrow representing the laser projected by the laser printing apparatus, the direction of the arrow being the direction of the laser from the source to the target.

The specific structure of the waste powder bin 101 and the waste powder expansion bin 301 can be seen from the cross section of the selenium drum in the section shown in fig. 3. On the cross section, the waste powder bin 101 is arranged transversely, that is, the long axis of the waste powder bin 101 is arranged along the transverse direction; the waste powder expansion bin 301 is arranged vertically, that is, the long axis of the waste powder expansion bin 301 is arranged along the vertical direction. The waste powder bin 101 and the waste powder expansion bin 301 are 7-shaped in cross section as shown in fig. 3. In the gravity direction, the bottom of the waste toner hopper 101 is higher than the bottom of the waste toner expansion hopper 301. The bottom of the waste powder bin and the bottom of the waste powder expansion bin are chamber walls where waste powder is deposited in a state that the toner cartridge is assembled in the laser printing apparatus as shown in fig. 3. The waste powder scraped by the cleaning scraper 304 firstly enters the waste powder bin 101, and after the waste powder bin 101 is gradually filled up, the waste powder moves towards the waste powder expansion bin 301, and because the bottom of the waste powder expansion bin 301 and the bottom of the waste powder bin 101 have a fall in the gravity direction, the waste powder pushed towards the waste powder expansion bin 301 can fall into the waste powder expansion bin 301 under the action of gravity, so that the waste powder expansion bin 301 can contain more waste powder.

The utility model discloses a more useless powder can be held on the one hand to useless powder extension storehouse 301, and on the other hand, through the edge different with useless powder storehouse 101 vertical setting is avoided following can shelter from the top space in carbon dust storehouse 303 after the horizontal direction extends to set up, and then has hindered the setting in carbon dust extension storehouse 102.

As can be seen in fig. 3, the laser extends through the gap 302 between the bottom of the waste expansion bin 301 and the top of the toner hopper 303. The shape of the bottom of the waste powder expanding bin 301 is an inclined plane for avoiding laser. Also, to avoid the laser, the bottom of the toner expansion hopper 102 is also provided with a bevel.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and the present invention can also be modified in materials and structures, or replaced by technical equivalents. Therefore, all structural equivalents which may be made by applying the present invention to the specification and drawings, or by applying them directly or indirectly to other related technical fields, are intended to be encompassed by the present invention.

Claims

1. Selenium drum, including sensitization drum, carbon powder storehouse and useless powder storehouse, its characterized in that: comprises a separated photosensitive drum protective cover for covering the photosensitive drum; the separated photosensitive drum protective cover is provided with a first clamping structure; a second clamping structure matched with the first clamping structure is arranged on the toner cartridge; when the separated photosensitive drum protective cover is assembled on the selenium drum, the first clamping structure is fixedly connected with the second clamping structure in a clamping manner; a carbon powder expanding bin communicated with the carbon powder bin is arranged; and a waste powder expansion bin communicated with the waste powder bin is also arranged.

2. The cartridge of claim 1, wherein: the first clamping structure comprises a clamping structure or a clamped structure; the second clamping structure comprises a clamped structure or a clamping structure.

3. The cartridge of claim 2, wherein: the clamping structure comprises a clamp; the clamped structure includes a detent.

4. The cartridge of claim 1, wherein: the first clamping structure is arranged at the end part of the separated photosensitive drum protective cover in the long axis direction.

5. The cartridge according to claim 4, wherein: the first clamping and fixing structures are respectively arranged at two ends of the separated photosensitive drum protective cover in the long axis direction.

6. The cartridge of claim 1, wherein: when the toner cartridge is assembled in the laser printing device, the toner expansion bin is arranged above or obliquely above the toner bin in the gravity direction.

7. The cartridge of claim 6, wherein: and a laser passing gap is arranged between the carbon powder expanding bin and the carbon powder bin.

8. The cartridge as set forth in claim 1, wherein: when the toner cartridge is assembled in the laser printing device, the bottom of the waste toner expansion bin is lower than the bottom of the waste toner bin in the gravity direction.

9. The cartridge of claim 8, wherein: and a laser passing gap is arranged between the bottom of the waste powder expansion bin and the carbon powder bin.