WO2012013143A1

WO2012013143A1 - Method for remanufacturing a developer cartridge

Info

Publication number: WO2012013143A1
Application number: PCT/CN2011/077648
Authority: WO
Inventors: 谢海军; 周宏辉; 杨晓锋
Original assignee: 珠海天威飞马打印耗材有限公司
Priority date: 2010-07-27
Filing date: 2011-07-27
Publication date: 2012-02-02
Also published as: CN101923307A; CN101923307B

Abstract

A method for remanufacturing a developer cartridge, which is used for remanufacturing a recovered developer cartridge (1) into a target developer cartridge, is disclosed. The method comprises the following steps of: separating a drum assembly (2) from a developer assembly (3) of the recovered developer cartridge (1); separating a non-driving end cover (9) from a toner hopper (7) to expose the non-driving end wall of the toner hopper; providing a sensor; notching a strip groove on the non-driving end wall; inserting an induction part of the sensor into the inner of the toner hopper through the strip groove; fixedly sticking a transfer part of the sensor to the non-driving end wall; sealing the strip groove; arranging a sensor conducting strip on an inner surface of the non-driving end cover (9); reinstalling the non-driving end cover (9) to the non-driving end of the toner hopper (7); and recombining the drum assembly (2) and the developer assembly (3) to obtain the remanufactured target developer cartridge.

Description

Reconstruction method of developer cartridge

Technical field

The present invention relates to a method of converting a recovered developer cartridge into another developer cartridge. The present application claims priority to Chinese Patent Application No. 20101023752, the entire disclosure of which is incorporated herein by reference.

Background technique

An image forming apparatus such as a printer, a copying machine, or a facsimile machine is a commonly used office equipment, and a detachable developer cartridge is internally used as a consumable for imaging. In consideration of factors such as cost reduction and environmental protection, it has been increasingly recognized that the developer cartridge used for image forming apparatuses such as copiers, printers, and facsimile machines is recycled and reused for reuse.

A common developer cartridge is generally composed of a developing frame and a drum frame, wherein the developing frame portion is provided with a stirring frame, a powder feeding roller and a developing roller, and the drum frame portion is provided with a photosensitive drum, a charging roller and the like, and is charged. The roller charges the photosensitive drum, and then forms an electrostatic latent image by exposure on the photosensitive drum through the exposure assembly, and then conveys the developer to the electrostatic latent image area on the photosensitive drum through the developing roller to form a developer image, and the developer image is transferred to the paper. After the heat is set, the printed text image is finally formed.

At present, there are two types of developer cartridges, A and B. Since there are some differences in the external structure between the two types of developer cartridges, the recovered developer cartridge can only be applied to the image forming apparatus of the corresponding model. on. The current problem is that consumables companies may recycle a large number of used A-type developer cartridges, but the demand for type A developer cartridges on the market is not large, but it is basically the same as the A-type developer cartridges. The B type developer cartridge is in great demand. Because the A type developer cartridge and the B type developer cartridge have certain differences in the external structure, they cannot replace the B type developer cartridge, so they are idle or discarded, which not only causes the enterprise funds to be occupied, but also causes waste of resources. The recovery of the Type B developer cartridge requires a large amount of capital, which will put pressure on the company's capital chain and hinder the regeneration and reuse of the developer cartridge.

technical problem

The object of the present invention is to provide a method for modifying a developer cartridge by the prior art, by which a recycled developer cartridge can be modified into another developer cartridge to be applicable to another Model image forming device.

Technical solution

In order to solve the above technical problems, the present invention adopts the following technical solution: a method for modifying a developer cartridge for reforming a recovery developer cartridge into a target developer cartridge, the recovery developer cartridge including a a drum assembly rotatably supporting the photosensitive drum and a developing assembly rotatably supporting the developing roller, the drum assembly and the developing assembly being hinged to each other; the drum assembly having a waste toner box, a chip mounting groove formed on a surface of the waste toner box And a photosensitive drum bearing plate disposed at one end of the waste toner box, the developing assembly having a powder chamber, a driving end cover disposed at a driving end of the powder container, and a non-driving end cover disposed at a non-driving end of the powder container, The driving end cover and the photosensitive drum bearing plate are located on the same end side of the recycled developer cartridge; the method comprises the following steps:

Separating the drum assembly from the developing assembly from each other;

Separating the non-driving end cap from the powder bin to expose the non-driving end wall of the powder bin;

Providing a sensor having an inductive portion for contacting a developer in the powder bin and a transfer portion exposed outside the powder bin;

Opening a strip-shaped groove on the non-driving end wall, inserting the sensing portion of the sensor into the interior of the powder bin through the strip groove, and fixing the transmitting portion to the non-driving end wall, and then Closing the strip groove;

Providing a sensor conductive sheet on an inner surface of the non-driving end cover, the sensor conductive sheet having an electrical contact for contacting the sensor and an electrical contact extending to the non-driving end cover sidewall to contact an external circuit ;

Reinstalling the non-drive end cap back to the non-drive end of the powder bin;

The drum assembly and the developing assembly are reassembled together to obtain a modified target developer cartridge.

Beneficial effect

The invention has the beneficial effects of conveniently changing a recycled developer cartridge into another developer cartridge having substantially the same internal structure, so that the developer cartridge suitable for an image forming apparatus with less market demand is recovered. Simple processing, which can be applied to another type of image forming device, improves the production flexibility of the consumable recycling enterprise, reduces the production cost of the enterprise, and avoids waste of resources.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a recycled developer cartridge for modification, the proximal end being a drive end.

Figure 2 is another perspective view of the recovered developer cartridge of Figure 1, with the proximal end being the non-drive end.

Figure 3 is a perspective view of a target developer cartridge modified by the method of the present invention.

Figure 4 is a perspective view of the drive end cover of the recovered developer cartridge shown in Figure 1.

Figure 5 is a perspective view of the drive end cover of the target developer cartridge shown in Figure 3.

Figure 6 is a non-driven end view of the powder container portion of the recovered developer cartridge shown in Figure 1.

Figure 7 is a non-driven end view of the powder compartment portion of the target developer cartridge shown in Figure 3.

Figure 8 is a perspective view of the non-driving end cap of the recovered developer cartridge of Figure 1.

Figure 9 is a perspective view of the non-driving end cap of the target developer cartridge shown in Figure 3.

Figure 10 is a perspective view of the waste toner box of the recovered developer cartridge shown in Figure 1.

Figure 11 is a perspective view of the waste toner box of the target developer cartridge shown in Figure 3.

Figure 12 is a perspective view of the photosensitive drum bearing plate on the waste toner box shown in Figure 10.

Figure 13 is a perspective view of the photosensitive drum bearing plate on the waste toner box shown in Figure 11;

Figure 14 is a perspective view of the sensor of Figure 7.

Embodiments of the invention

As shown in FIGS. 1 and 2, a recovered developer cartridge 1 (for example, HP 5949A/X or HP7553A/X developer cartridge of Hewlett Packard Co., Ltd.) for reforming, the recovery developer cartridge 1 includes a rotatably supporting photosensitive drum The drum assembly 2 and a developing assembly 3 rotatably supporting the developing roller, the drum assembly 2 and the developing assembly 3 are hinged by a connecting pin. The drum assembly 2 has a waste toner box 4, a chip mounting groove 5 formed on the surface of the waste toner box, and a photosensitive drum bearing plate 6 disposed at one end of the waste toner box 4, the developing unit 3 having a powder magazine 7, and a setting A driving end cover 8 at a driving end of the powder container 7 and a non-driving end cover 9 provided at a non-driving end of the powder container 7, the driving end cover 8 and the photosensitive drum bearing plate 6 are located at the same end side of the recovery developer cartridge 1. .

Figure 3 shows another developer cartridge 10 (i.e., "target developer cartridge" modified by the method of the present invention, such as HP from Hewlett Packard. The CE505A/X product) has the same internal structure as the recovery developer cartridge 1, and on the external structure, the chip mounting groove 15, the photosensitive drum bearing plate 16 and the driving end of the developing assembly 13 of the drum assembly 12 The cover 18 has a certain difference from the corresponding components of the recovered developer cartridge 1, and additionally has a sensor at the non-driving end of the powder container 17 of the developing assembly 13, which constitutes a capacitance with the developing roller, and the developer is used as a medium, thereby The amount of the developer in the induction powder silo 17 is small, and the printer will prompt the user to replace the developer cartridge when the developer is small.

The step of reforming the recovered developer cartridge 1 into the target developer cartridge 10 will be described below with reference to Figs.

First, the coupling pin between the drum assembly 2 and the developing assembly 3 is taken out to separate the drum assembly 2 and the developing assembly 3 from each other.

The photosensitive drum in the drum unit 2 and the developing roller in the developing unit 3 are then separately removed.

Referring to Figure 4, the drive end cap 8 is separated from the drive end of the powder magazine 7 to expose a drive gear set having a cylindrical boss 82 projecting from its end face 81 and a boss 83, The boss 83 and a portion of the stud 82 projecting from the end face 81 are cut away to obtain a drive end cover 18 of the target developer cartridge 10 as shown in FIG.

The non-driving end cap 9 is separated from the non-driving end of the powder bin 7 to expose the non-driving end wall 71 of the powder bin 7, the non-driving end wall 71 having a powder filling port, the powder filling port being sealed by a dome 72 live.

Referring to Fig. 14, there is provided a sensor 74 of a metal material having an inductive portion 741 for contacting the developer in the powder chamber 7 and a transmitting portion 742 exposed outside the powder chamber 7.

Referring to Figures 6 and 7, a strip groove 73 (which may be 2 mm * 11 mm in size) is milled on the non-driving end wall 71 by means of a milling machine or the like, and the sensing portion 741 of the sensor 74 is inserted into the powder bin through the strip groove 73. Inside the portion 7, the transmitting portion 742 of the sensor 74 is affixed to the non-driving end wall 71, and then the strip groove 73 is closed by hot melt adhesive to prevent the developer from leaking therefrom.

Referring to FIGS. 8 and 9, a sensor conductive sheet 92 is disposed on the inner surface 91 of the non-driving end cover 9, and the sensor conductive sheet 91 can be fixed to the inner surface 91 by soldering, bonding, or the like, thereby producing a target development. The non-drive end cap 19 of the cartridge 10. The sensor conductive sheet 92 has an electrical contact 921 that is lifted to contact the transfer portion 742 of the sensor 74 and an electrical contact 922 that extends to the side wall of the non-driving end cover 9 to contact an external circuit, the electrical contact 922 being externally coupled to The control unit of the image forming apparatus forms an electrical connection to enable the image forming apparatus to prompt the amount of remaining powder.

Referring to Figs. 10 to 13, the photosensitive drum bearing plate 6 is detached from the waste toner hopper 4, and a photosensitive drum bearing plate 16 suitable for the target developer cartridge 10 is mounted at a corresponding position of the waste toner hopper 4, the photosensitive drum bearing The source of the plate 16 may be separately injection molded according to the shape and specifications of the photosensitive drum bearing plate on the original product of the target developer cartridge 10.

Referring to Figs. 10 and 11, the chip mounting groove 5 on the waste toner box 4 is cut off, and the chip mounting groove 15 suitable for the target developer cartridge 10 is attached and fixed at the corresponding position of the waste toner box 4. When the fixed chip mounting groove 15 is connected, soldering, bonding or screwing may be employed. The source of the chip mounting groove 15 may be separately injection molded according to the shape and specifications of the chip mounting groove on the original product of the target developer cartridge 10.

After the above steps are completed, the modified drum assembly 12 and the developing unit 13 are recombined into the target developer cartridge 10 by the connecting pin, thereby completing the reforming operation.

The above is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept. The scope of protection.

Industrial applicability

The reforming method of the present invention can easily convert a recycled developer cartridge into another developer cartridge having substantially the same internal structure, so that the developer cartridge suitable for an image forming apparatus with less market demand is simply recovered. The processing can be applied to another type of image forming apparatus, which improves the production flexibility of the consumable recycling enterprise, reduces the production cost of the enterprise, and avoids waste of resources.

Claims

A method of modifying a developer cartridge for reforming a recovered developer cartridge into a target developer cartridge, the recovery developer cartridge including a drum assembly rotatably supporting the photosensitive drum and a developing unit rotatably supporting the developing roller An assembly, the drum assembly and the developing assembly are hinged to each other; the drum assembly has a waste toner box, a chip mounting groove formed on a surface of the waste toner box, and a photosensitive drum bearing plate disposed at one end of the waste toner box, the developing assembly a powder end chamber, a driving end cover disposed at a driving end of the powder magazine, and a non-driving end cover disposed at a non-driving end of the powder magazine, the driving end cover and the photosensitive drum bearing plate being located in the same End side; characterized in that the method comprises the following steps:

Separating the drum assembly from the developing assembly from each other;

Separating the non-driving end cap from the powder bin to expose the non-driving end wall of the powder bin;

Providing a sensor having an inductive portion for contacting a developer in the powder bin and a transfer portion exposed outside the powder bin;

Opening a strip-shaped groove on the non-driving end wall, inserting the sensing portion of the sensor into the interior of the powder bin through the strip groove, and fixing the transmitting portion to the non-driving end wall, and then Closing the strip groove;

Providing a sensor conductive sheet on an inner surface of the non-driving end cover, the sensor conductive sheet having an electrical contact for contacting the sensor and an electrical contact extending to the non-driving end cover sidewall to contact an external circuit ;

Reinstalling the non-drive end cap back to the non-drive end of the powder bin;

The drum assembly and the developing assembly are reassembled together to obtain a modified target developer cartridge.
The method of modifying according to claim 1 wherein said drive end cap has a cylindrical stud and a boss projecting an end surface thereof, said method further comprising said boss and said The step of protruding the protrusion of the stud from the end face.
The method of modifying according to claim 2, wherein said driving end cap is first separated from said powder bin prior to said step of performing said cutting.
A modification method according to claim 1, wherein said reforming method further comprises the steps of: removing said photosensitive drum bearing plate from said waste toner box, and applying to said target developer cartridge The drum bearing plate is mounted at the corresponding position of the waste toner box.
The modification method according to claim 4, wherein said photosensitive drum bearing plate suitable for the target developer cartridge is separately injection molded in accordance with the shape and specifications of the photosensitive drum bearing plate on the original developer cartridge.
The modification method according to claim 1, wherein the reforming method further comprises the steps of: cutting a chip mounting groove on the waste toner box, and mounting a chip suitable for the target developer cartridge The slot connection is fixed at a corresponding position of the waste toner box.
The modification method according to claim 6, wherein said chip mounting groove suitable for the target developer cartridge is separately injection molded according to the shape and specification of the chip mounting groove on the original developer cartridge.
The modification method according to claim 6, wherein the method of soldering, bonding or screwing is used when the chip mounting groove of the target developer cartridge is attached and fixed.