CN2872423Y

CN2872423Y - Carbon powder box

Info

Publication number: CN2872423Y
Application number: CN 200620006577
Authority: CN
Inventors: 金本友; 宋显堂
Original assignee: Print Rite Technology Development Co Ltd of Zhuhai
Current assignee: Print Rite Technology Development Co Ltd of Zhuhai
Priority date: 2006-02-24
Filing date: 2006-02-24
Publication date: 2007-02-21
Anticipated expiration: 2016-02-24

Abstract

The utility model relates to a powered carbon box, which comprises a box body with a power cabin, developing rollers, a OPC drum, a powder outlet blade, sealing parts equipped on two corresponding side walls inside the powder cabin and elastically next to the first surface of the developing rollers outer circumferential surface. An area contact with the first surface is arranged on the outer circumferential surface on both ends of the developing rollers. A lubricating sponge is positioned on the box framework and used to lubricate the area contact with the first surface on the outer circumferential surface on both ends of the developing rollers. The utility model has the advantages of preventing the outer circumferential surface on both ends of the developing rollers from wearing by the powder outlet blade, avoiding powdered carbon leakage and improving printing quality.

Description

Cartridge

Technical field

The utility model relates to the electronic imaging apparatus cartridge.

Background technology

The cartridge that is used for electronic imaging apparatus generally comprises a box body that has a powder storehouse, stirring apparatus, powder feeding roller, developer roll, photosensitive drums, charging device etc. at least.For guaranteeing the video picture quality, also be fixed with a powder delivery cutter on the box body, be used for being controlled at the thickness of a regulation being transported to carbon dust on the developer roll.The length and the developer roll of powder delivery cutter are roughly the same, and keep Elastic Contact with the outside surface (rubber layer) of developer roll.For preventing that the carbon dust in the powder storehouse from leaking, be respectively equipped with the sealing sponge on two opposing sidewalls in the powder storehouse, the sealing sponge has the outer circumference surface Elastic Contact of a face and developer roll end.

Cartridge with said structure is when printing work, and there is the lubricated of carbon dust in the zone that developer roll does not contact with the sealing sponge when transmitting carbon dust, and the friction force that is subjected to is less, is not easy to cause damage.But the zone that its both ends contact with the sealing sponge, lubricated because of there not being carbon dust, the rubber layer and the friction force between the powder delivery cutter on surface are bigger, very easily are worn, and the sealing property of cartridge was lost efficacy, and cause carbon dust to reveal contaminated environment.On the other hand, the rubber that the powder delivery cutter scrapes forwards to again on the photosensitive drums by developer roll, also can cause the decline of print quality.

Summary of the invention

Fundamental purpose of the present utility model provides a kind of improved cartridge, has the lubricating system that prevents the developer roll end wear.

For achieving the above object, the cartridge that the utility model provides comprises: hold the box body of carbon dust, rotatable developer roll by the box body frame supported, its outer circumference surface adhere to carbon dust so that it is passed out outside the framework; Rotatable photosensitive drums by the box body frame supported, its surface can be recharged, and forms electrostatic latent image; The powder delivery cutter, control sticks to the quantity of the carbon dust on the developer roll outer circumference surface; Seal is located on two opposing sidewalls in the powder storehouse and has the first surface of the adjacent developer roll outer circumference surface of elasticity; On the outer circumference surface at developer roll two ends, have one with the contacted zone of first surface; On the framework of box body, be provided with lubricated sponge, in order on the outer circumference surface at lubricated developer roll two ends with the contacted zone of first surface.

Scheme is that described lubricated sponge contacts with described photosensitive drums preferably, by contacting of photosensitive drums and developer roll, lubricant medium is passed on the developer roll outer circumference surface and the contacted zone of described first surface.

Better scheme is that lubricated sponge is the elastic sponge that scribbles lubricant.

Cartridge with said structure lubricates with the lubricated sponge in the contacted zone of seal on the outer circumference surface at developer roll two ends, has reduced the friction between itself and the powder delivery cutter, has avoided the developer roll end surface to be worn and torn by the powder delivery cutter.

Description of drawings

Fig. 1 is the structural representation of the utility model cartridge;

Fig. 2 is the assembling synoptic diagram of the utility model cartridge;

Fig. 3 is the structural representation that the utility model cartridge is not installed photosensitive drums;

Fig. 4 is the side sectional view of this Fig. 1.

Embodiment:

The utility model is described in further detail below in conjunction with drawings and Examples.

Referring to Fig. 1, Fig. 2, cartridge is made up of box body 1 that has a powder storehouse 2 and cap (not shown).Be provided with carbon dust stirring apparatus 3 in the powder storehouse 2, the meal outlet place also is provided with powder feeding roller 4, and they rotatably are supported on respectively between the two opposite side walls 5 in powder storehouse 2.Contiguous powder feeding roller 4, rotation is supported with developer roll 6 on the framework of box body 1, and its outer circumference surface has one deck elastic rubber layer.Also rotation is provided with photosensitive drums 7 on the framework of box body 1, and it contacts with developer roll 6.Can be charged by a charging device (not shown) in photosensitive drums 7 surfaces.

When cartridge is worked, be contained in after carbon dusts in the powder storehouse 2 are stirred device 3 and fully stir, be sent to developer roll 6 through powder feeding roller 4, and form a uniform carbon dust layer at the external peripheral surface of developer roll 6, the back contacts with photosensitive drums 7 by developer roll 6, makes the electrostatic latent image that is formed on the photosensitive drums 7 generate the carbon dust image.For guaranteeing image quality, on the framework of box body 1, be fixed with powder delivery cutter 8, stick to the quantity of the carbon dust on developer roll 6 peripheries in order to control.The length of powder delivery cutter 8 and developer roll 6 are roughly the same, and contact with developer roll 6 outer circumference surface elasticity.

For preventing that the carbon dust in the powder storehouse 2 from leaking, and is respectively equipped with sealing sponge 9 on two opposing sidewalls 5 in powder storehouse 2.It is interior near the position of developer roll 6 with powder delivery cutter 8 that sealing sponge 9 directly is assemblied in powder storehouse 2, is fixed on the sidewall 5 by powder feeding roller 4 and axle sleeve.It has the first surface 10 of adjacent developer roll 6 outer circumference surfaces of elasticity, with the second surface 13 of the back side Elastic Contact of powder delivery cutter 8.

Have one contacted regionally 11 with the first surface 10 of sealing sponge 9 on the outer circumference surface at developer roll 6 two ends respectively, this zone 11 has carbon dust lubricated because of the effect of sealing sponge 9.For reducing the friction between regional 11 place's developer rolls 6 and powder delivery cutter 8, the resilient lubricated sponge 12 of difference mounting strap on the 11 pairing box body frameworks of the zone at developer roll 6 two ends.Lubricated sponge 12 can be coated a spot of railway grease or lubricant makes by elastic common sponge.Lubricated sponge 12 can by stick with glue, known method such as thermal weld is installed on the framework of box body 1.

Fig. 3 is that cartridge is not installed the structural representation under the state of photosensitive drums 7, and Fig. 4 is the side sectional view of Fig. 1.Describe installation site and the principle of work of lubricated sponge 12 in detail below in conjunction with Fig. 3, Fig. 4.Lubricated sponge 12 is installed in the position of the framework upper support photosensitive drums 7 of box body 1, and contacts with photosensitive drums 7.Lubricated sponge 12 corresponding developer rolls 6 two ends and the first surface contacted regional 11 that seals sponge 9, when cartridge is worked, lubricated sponge 12 at first contacts with photosensitive drums 7, make on the outer circumference surface of lubricant attached to photosensitive drums 7, contact with developer roll 6 by photosensitive drums 7 again, lubricant medium is passed on developer roll 6 outer circumference surfaces first surface 10 contacted regional 11 with sealing sponge 9, this zone 11 is lubricated, to reduce developer roll 6 friction with powder delivery cutter 8, the wearing and tearing of developer roll 6 have been avoided at these 11 places, zone in this zone 11.

Variation based on the utility model design is not limited in the foregoing description, also multiple variation can be arranged, and these simple structural changes still belong to the protection domain of the utility model requirement.

Claims

1, cartridge is made up of box body that has the powder storehouse and cap, comprising:

Rotatable developer roll by the box body frame supported, its outer circumference surface adhere to carbon dust so that it is passed out outside the framework;

Rotatable photosensitive drums by the box body frame supported, its surface can be recharged, and forms electrostatic latent image;

The powder delivery cutter, control sticks to the quantity of the carbon dust on the developer roll outer circumference surface;

Seal is located on two opposing sidewalls in the powder storehouse and has the first surface of the adjacent developer roll outer circumference surface of elasticity;

Have on the described developer roll outer circumference surface one with the contacted zone of described first surface;

It is characterized in that:

The framework of described box body is provided with lubricated sponge, in order on the lubricated described developer roll outer circumference surface with the contacted zone of described first surface.

2, according to the described cartridge of claim 1, it is characterized in that:

Described lubricated sponge contacts with described photosensitive drums, by contacting of described photosensitive drums and described developer roll, lubricant medium is passed on the described developer roll outer circumference surface and the contacted zone of described first surface.

3, according to the described cartridge of claim 2, it is characterized in that:

Described lubricated sponge is the elastic sponge that scribbles lubricant.