CN201945811U - Device for reducing charging body contamination and static carrier contamination in field of electrostatic imaging - Google Patents
Device for reducing charging body contamination and static carrier contamination in field of electrostatic imaging Download PDFInfo
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- CN201945811U CN201945811U CN2011200305251U CN201120030525U CN201945811U CN 201945811 U CN201945811 U CN 201945811U CN 2011200305251 U CN2011200305251 U CN 2011200305251U CN 201120030525 U CN201120030525 U CN 201120030525U CN 201945811 U CN201945811 U CN 201945811U
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- supporting body
- charge bulk
- static supporting
- solenoid
- image forming
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Abstract
The utility model discloses a device for reducing charging body contamination and static carrier contamination in the field of electrostatic imaging, which comprises a static carrier, a charging body, a plastic hardware support, a linkage handle, a spring and a force application device for withstanding returning of the spring, wherein the linkage handle is arranged in the plastic hardware support, and one end of the linkage handle is connected with the charging body. The spring is arranged between the linkage handle and the plastic hardware support to enable the charging body to be far away from the static carrier automatically, and the force application device acts on the linkage handle to enable the charging body to contact with the static carrier. The device for reducing the charging body contamination and the static carrier contamination is capable of greatly reducing requirements for the charging body due to the fact that the surface of the charging body and the static carrier are separated in a non-working state, thereby simplifying manufacturing process and reducing cost.
Description
Technical field
The utility model relates to the electrophotographic image forming technical field, relates in particular to the device that charge bulk and the pollution of static supporting body are reduced in a kind of electrophotographic image forming field.
Background technology
In existing electrophotographic image forming product, laser printing product for example, xerox product etc., all need to be provided with a charge bulk, described charge bulk all contacts with static supporting body surface, as shown in Figure 1,1 is the static supporting body, the 2nd, charge bulk, the 3rd, plastic cement five metals support, the 4th, connect support, 6 and 6 is springs, principle of work is as shown in Figure 1: spring 6 is mounted on the plastic cement five metals support 3, it is compressed that product assembles rear spring 6, makes charge bulk 2 keep contacting all the time with static supporting body 1 so maintain downward thrust, and the dynamics of contact is by the structure and the decision of installing space size of spring 6.
In general, the function of charge bulk itself adds the layer of even electric charge on static supporting body surface exactly, makes developer (carbon dust) form predetermined image on the static supporting body; Charge bulk goes to realize its function owing to will add some particular matters on the one hand, so usually can separate out some micromolecule to the charge bulk surface, if charge bulk and static supporting body keep in touch, after long-time storage or standby, the micromolecule of transferring to static supporting body surface like this from the charge bulk surface can build up, and pollutes static supporting body surface; Though on the other hand the downstream of the static supporting body sense of rotation of prior art and contact the position of described static supporting body at described charge bulk before be provided with cleaning device, yet in the product assembling process or after long-time the use, owing to some uncontrollable reasons (for example add lubricant, equipment failure, paperboard, outage midway etc.), more residual lubricants of meeting and/or developer on the static supporting body surface, and cleaning device can not guarantee it is disposed fully, cause the charge bulk meeting contaminated like this, and charge bulk contaminated after, its resistance will be affected, and then influence charging effect, finally can influence the image output quality.
Therefore, prior art has yet to be improved and developed.
The utility model content
The purpose of this utility model is to provide the device that reduces charge bulk and the pollution of static supporting body in a kind of electrophotographic image forming field, is intended to solve existing charge bulk and contacts the easy contaminated problem of charge bulk and static supporting body for a long time with the static carrier surface.
The technical solution of the utility model is as follows:
A kind of device that reduces charge bulk and the pollution of static supporting body, comprise static supporting body, charge bulk, plastic cement five metals support, wherein, also comprise co-acting lever, spring and be used to resist the force application apparatus of described spring reset, described co-acting lever is arranged in the plastic cement five metals support, and an end connects described charge bulk; Described spring is arranged between co-acting lever and the plastic cement five metals support, is used to make charge bulk automatically away from described static supporting body; Described force application apparatus acts on the described co-acting lever, is used to make described charge bulk to contact described static supporting body.
The device that described minimizing charge bulk and static supporting body pollute, wherein, described force application apparatus comprises solenoid and iron block, described iron block is fixed on the co-acting lever; Described solenoid is fixed on the plastic cement five metals support, and the corresponding setting with described iron block of described solenoid; Hold described iron block after the described solenoid energising, described charge bulk is contacted with described static supporting body.
The device that described minimizing charge bulk and static supporting body pollute, wherein, described solenoid connects the supply unit in the electrophotographic image forming equipment, the then described solenoid energising of described supply unit energising.
The device that described minimizing charge bulk and static supporting body pollute, wherein, described device also comprises a controller, described controller connects described solenoid, described controller is used to detect electrophotographic image forming equipment and whether receives the work order of prining, when receiving the work order of prining, then controller is switched on to described solenoid.
The device that described minimizing charge bulk and static supporting body pollute, wherein, described force application apparatus comprises driving handle and the block that is fixed in the electrophotographic image forming equipment, and an end of described driving handle connects described co-acting lever, and the other end is a free end; In described static image forming apparatus was packed described electrophotographic image forming equipment into, the free end of described driving handle was subjected to the spacing of described block, and an end that connects co-acting lever is pressed down, and realized charge bulk contact static supporting body.
The device that described minimizing charge bulk and static supporting body pollute, wherein, described device also comprises a stop, described stop is arranged on the described plastic cement five metals support, is used for the displacement of spacing described co-acting lever to static supporting body direction.
The beneficial effects of the utility model: whether in working order the utility model by detecting the electrophotographic image forming product, whether control charge bulk contacts with static supporting body surface, in the time of in working order, charge bulk contacts with static supporting body surface, by pre-provisioning request is charged in static supporting body surface; When off working state, charge bulk is in not contact condition away from static supporting body surface automatically.Because charge bulk and static supporting body surface isolate in off working state, to shorten the duration of contact on charge bulk and static supporting body surface so greatly, thereby reduce the chance that charge bulk pollutes static supporting body surface, so enforcement of the present utility model, requirement be will reduce greatly, thereby its manufacturing process and cost simplified charge bulk.
Description of drawings
Fig. 1 is the locations of structures synoptic diagram of charge bulk and static supporting body in the prior art.
Fig. 2 is a kind of electrophotographic image forming product principle of work synoptic diagram of toner cartridge.
Fig. 3 is the structural representation that the utility model device first preferred technique scheme provides.
Fig. 4 is the structural representation that the utility model device second preferred technique scheme provides.
Fig. 5 is the structural representation that the utility model device the 3rd preferred technique scheme provides.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, clear and definite, below the utility model is further described with reference to the accompanying drawing embodiment that develops simultaneously.
In the utility model electrophotographic image forming product, its product by charging device, static bogey, developer, develop developer to the developing apparatus on static supporting body surface and the cleaning device that is used to clean the static load-bearing surface constitutes; This electrophotographic image forming product is placed in the electrophotographic image forming equipment and uses; This electrophotographic image forming equipment is driven by general industry or mains lighting supply.
The utility model embodiment is to be that example illustrates embodiment of the present utility model with laser selenium drum:
As shown in Figure 2, toner cartridge comprises: charging device 12, organic light guide drum 11, developing apparatus 23, cleaning doctor 26, developer 22 and plastic cement five metals support 3, the effect of plastic cement five metals support 3 are that charging device 12, organic light guide drum 11, developing apparatus 23, cleaning doctor 26, developer 22 etc. are arranged on the predetermined locus.Its groundwork process is as follows: charging device 12 adds the layer of even electric charge on request on organic light guide drum 11 surfaces; After laser scanning, form electrostatic latent image; The developer that is stored in the developer 22(present embodiment in the powder-storage bin 20 is a carbon dust), be developed through developing apparatus 23 on the electrostatic latent image on organic light guide drum 11 surfaces; Organic light guide drum 11 rotates in the direction of the clock in operate as normal; Bottom at product, transfer device 24 in organic light guide drum 11 surperficial exposed portions serve and the electrophotographic image forming equipment constitutes transfer area, in transfer area, carbon dust is transferred on the paper 27, just can outwards export after the fixing device (not shown) photographic fixing in electrophotographic image forming equipment then; The remaining carbon dust 25 that is not transferred in transfer area is brought to the clear area, and the scraper 26 that is cleaned is collected in the waste powder hopper 21.
At above-mentioned principle of work, reduce the device that charge bulk and static supporting body pollute in a kind of electrophotographic image forming field that the utility model proposes, that is:
Judge at first whether the electrophotographic image forming product is in duty, be in duty, then control charge bulk and contact with the static supporting body if be judged as; If be judged as off working state, then charge bulk is automatically away from the static supporting body.
Wherein, multiple scheme is arranged for the judgement of duty and off working state: scheme 1, product is installed in the electrophotographic image forming equipment is defined as duty, be off working state and product is taken out the electrophotographic image forming device definition; Scheme 2, be installed to product in the electrophotographic image forming equipment after, connect the electrophotographic image forming device power supply (DPS) then and be defined as duty, be defined as off working state and will disconnect the electrophotographic image forming device power supply (DPS); Scheme 3 is installed to product in the electrophotographic image forming equipment, connect the electrophotographic image forming device power supply (DPS) then after, when electrophotographic image forming equipment received the work order of the information of prining, it was in running order then to define product; When not receiving the work order of the information of prining in the given time after electrophotographic image forming equipment is finished the task of prining, product is in off working state automatically.
In general, if when task is printd in execution, electrophotographic image forming equipment occur to interrupt (for example paperboard or outage etc.), and at this moment static supporting body surface has and develops and the developer of transfer printing and be not transferred and above developer that the device that is not cleaned cleans stays not.Therefore, at the electrophotographic image forming equipment power-on or open and cover or open that paperboard cleaning cover plate covers or when reinstalling product after product is installed cover plate more again; Need do a warm start to equipment, the static supporting body in the product can rotate several circles according to clockwise direction, and product also can be designed to counterclockwise be operative orientation certainly.
If the cleaning safeguard measure above adding in the control method in scheme 3, charge bulk separates with the static supporting body during owing to cleaning, so can not be developed the agent pollution by fine protection charge bulk.
Need to prove: when organic light guide drum rotates by counter clockwise direction, cleaning doctor does not have cleaning function, but can be with the lubricant homogenising on the organic light guide drum, so after adding lubricant, counterclockwise rotate a few circle lubricant effects meetings better to organic light guide drum.
Provide concrete device to be achieved at said method the utility model, described device comprises: comprise static supporting body, charge bulk, plastic cement five metals support, wherein, also comprise co-acting lever, spring and be used to resist the force application apparatus of described spring reset, described co-acting lever is arranged in the plastic cement five metals support, and an end connects described charge bulk; Described spring is arranged between co-acting lever and the plastic cement five metals support, is used to make charge bulk automatically away from described static supporting body; Described force application apparatus acts on the described co-acting lever, is used to make described charge bulk to contact described static supporting body.
At scheme 1: product being installed in the electrophotographic image forming equipment being defined as duty, is off working state and product is taken out the electrophotographic image forming device definition.The utility model proposes a kind of concrete apparatus structure, wherein, described force application apparatus comprises driving handle and the block that is fixed in the electrophotographic image forming equipment, and an end of described driving handle connects described co-acting lever, and the other end is a free end; In described static image forming apparatus was packed described electrophotographic image forming equipment into, the free end of described driving handle was subjected to the spacing of described block, and an end that connects co-acting lever is pressed down, and realized charge bulk contact static supporting body.Specifically as shown in Figure 3, in the present embodiment, also be provided with a stop, be used for the displacement of spacing described co-acting lever to static supporting body direction, certainly realize this purpose, be not limited to be provided with stop, those skilled in the art can also have other multiple modes to realize.
Referring to Fig. 3: 1 is the static supporting body, and 2 is charge bulk, and 3 is plastic cement five metals support, and 4 is co-acting lever, and 5 is stop, and 6 is spring, and 7 is driving handle, and 8 for being fixed on the block in the electrophotographic image forming equipment.Described co-acting lever is arranged in the described plastic cement five metals support, and an end connects driving handle, other end connection charge bulk; Described stop is arranged on the described plastic cement five metals support, is used for the displacement that spacing described co-acting lever moves down; Described spring is arranged between co-acting lever and the described plastic cement five metals support, is used to make described co-acting lever to reset, and makes charge bulk automatically away from described static supporting body.
The groundwork process is: when product is not installed, elastic force upwards arranged after spring 6 is compressed, charge bulk 2 upwards mentioned by this elastic force, and away from static supporting body 1 surface, the upper part of plastic cement five metals support 3 this is moved upward restricted function.When product is packed in electrophotographic image forming equipment, be equivalent to product and do downward motion, because block 8 is fixed, the inner moves downward so cause the outer end of driving handle 7 to move upward, promoting co-acting lever 4 by its inner shell fragment moves downward, make charge bulk 2 move downward contact static supporting body 1 surface, stop 5 moves downward restricted function to this; After product was fixedly installed in the electrophotographic image forming equipment, charge bulk 2 always kept contacting by the predetermined design dynamics with static supporting body 1 surface, realizes its charge function; When product was taken out from electrophotographic image forming equipment, the external force of driving handle 7 was removed, and simultaneously the elastic force of its end shell fragment also just disappears, charge bulk 2 under the elastic force effect of spring 6 automatically away from static supporting body 1 surface.
At scheme 2: after being installed to product in the electrophotographic image forming equipment, connecting the electrophotographic image forming device power supply (DPS) then and be defined as duty, be defined as off working state and will disconnect the electrophotographic image forming device power supply (DPS).The utility model proposes a kind of concrete apparatus structure, described force application apparatus comprises solenoid and iron block, and described iron block is fixed on the co-acting lever; Described solenoid is fixed on the plastic cement five metals support, and the corresponding setting with described iron block of described solenoid; Hold described iron block after the described solenoid energising, described charge bulk is contacted with described static supporting body.Specifically as shown in Figure 4, in the present embodiment, described device also is provided with a stop, be used for the displacement of spacing described co-acting lever to static supporting body direction, certainly realize this purpose, be not limited to be provided with stop, those skilled in the art can also have other multiple modes to realize.
Referring to Fig. 4: 1 is the static supporting body, and 2 is charge bulk, and 3 is plastic cement five metals support, and 4 is co-acting lever, and 5 is stop, and 6 is spring, and 9 for being fixed on the iron block on the co-acting lever, and 10 for being fixed on the solenoid on the stop 5.Described co-acting lever is arranged in the plastic cement five metals support, and an end connects described charge bulk; Described stop is arranged on the described plastic cement five metals support, is used for spacing described co-acting lever; Described spring is arranged between co-acting lever and the plastic cement five metals support, is used to make charge bulk automatically away from described static supporting body; The corresponding setting with described iron block of described solenoid holds described iron block after the described solenoid energising, and described charge bulk is contacted with described static supporting body.Described solenoid connects the supply unit in the electrophotographic image forming equipment, the then described solenoid energising of described supply unit energising.
The groundwork process is: when product is not installed, elastic force upwards arranged after spring 6 is compressed, charge bulk 2 upwards mentioned by this elastic force, and away from static supporting body 1 surface, the upper part of plastic cement five metals support 3 this is moved upward restricted function; After in the electrophotographic image forming equipment that product is packed into, connecting described electrophotographic image forming device power supply (DPS) powers to it, solenoid 10 just has electric current to pass through, then it can produce the electromagnetic attraction to iron block 9, promoting co-acting lever 4 moves downward, make charge bulk 2 move downward contact static supporting body 1 surface, stop 5 moves downward restricted function to this; If electrophotographic image forming equipment does not cut off the power supply, then solenoid 10 just has scheduled current to pass through always, and then charge bulk 2 always keeps contacting by the predetermined design dynamics with static supporting body 1 surface; After the electrophotographic image forming device powers down, solenoid 10 does not just have electric current to pass through, then the electromagnetic attraction of iron block 9 is also just disappeared, charge bulk 2 under the elastic force effect of spring 6 automatically away from static supporting body 1 surface.
The device that provides at scheme 3 the utility model also comprises a controller 11 and the command detection module (not shown) of prining, and described controller 11 connects described solenoid 10 and the described command detection module of prining.Described controller 11 detects electrophotographic image forming equipment by the described command detection module of prining and whether receives the work order of prining, when receiving the work order of prining, and then 11 pairs of described solenoid 10 energisings of controller.The utility model proposes a kind of concrete apparatus structure, the constructional device of present embodiment is improved in addition on the structure of scheme 2, specifically as shown in Figure 5.
Referring to Fig. 5: 1 is the static supporting body, and 2 is charge bulk, and 3 is plastic cement five metals support, and 4 is co-acting lever, and 5 is stop, and 6 is spring, and 9 for being fixed on the iron block on the co-acting lever, and 10 for being fixed on the solenoid on the stop 5.Described co-acting lever is arranged in the plastic cement five metals support, and an end connects described charge bulk; Described stop is arranged on the described plastic cement five metals support, is used for spacing described co-acting lever; Described spring is arranged between co-acting lever and the plastic cement five metals support, is used to make charge bulk automatically away from described static supporting body; The corresponding setting with described iron block of described solenoid, described solenoid is connected to the supply unit in the electrophotographic image forming equipment, holds described iron block after the described solenoid energising, and described charge bulk is contacted with described static supporting body.Described device also comprises a controller 11, described controller 11 connects described solenoid, described controller is used to detect electrophotographic image forming equipment and whether receives the work order of prining, and when receiving the work order of prining, then controller is switched on to described solenoid.
The groundwork process is: when product is not installed, elastic force upwards arranged after spring 6 is compressed, charge bulk 2 upwards mentioned by this elastic force, and away from static supporting body 1 surface, the upper part of plastic cement five metals support 3 this is moved upward restricted function; After in the electrophotographic image forming equipment that product is packed into, if electrophotographic image forming equipment is not received when prining instruction, solenoid 10 does not just have electric current to pass through, then iron block 9 just there is not electromagnetic attraction, when electrophotographic image forming equipment is received when instruction of prining, controller is just to solenoid 10 power supplies, at this moment, solenoid 10 just has electric current to pass through, then it produces electromagnetic attraction to iron block 9, promote co-acting lever 4 and move downward, make charge bulk 2 move downward contact static supporting body 1 surface, stop 5 moves downward restricted function to this; Electrophotographic image forming equipment finish the task of prining and on schedule time-delay during this period of time, solenoid 10 has scheduled current to pass through always, then charge bulk 2 always keeps contacting by the predetermined design dynamics with static supporting body 1 is surperficial; After predetermined delay time, controller is to solenoid 10 outages, and then the electromagnetic attraction to iron block 9 also just disappears, charge bulk 2 under the elastic force effect of spring 6 automatically away from static supporting body 1 surface.
In addition, force application apparatus described in the utility model is not limited to two above-mentioned class formations, also comprise other a variety of devices that can resist described spring reset, for example, described iron block is set as magnet, by the direction of current that flows through in the solenoid is adjusted, utilization magnet magnetic pole of the same name repels mutually, the principle that synonyms pole attracts mutually realize controlling charge bulk and static supporting body contact with automatically away from.
Advantage of the present utility model: on the one hand, owing to print test, in the production and assembly operating process, have developer and lubricant and drop on static supporting body surface, will pollute charge bulk like this and influence its resistance, and then influence charging effect, finally influence output quality; Enforcement of the present utility model because charge bulk and static supporting body surface isolate in off working state, can be rotated the static supporting body, makes cleaning device earlier that static supporting body cleaning surfaces is clean, so benefit is conspicuous.
On the other hand, enforcement of the present utility model, because charge bulk and static supporting body surface isolate in off working state, to shorten the duration of contact on charge bulk and static supporting body surface so greatly, thereby reduce the chance that charge bulk pollutes static supporting body surface, it is to be noted especially: because product is in the storage time or in outage is had a rest or in the standby process, charge bulk and static supporting body surface isolate, and very big benefit is arranged like this.Mill trial results shows: under the surperficial situation about contacting of charge bulk and static supporting body, be implemented in a couple of days or do not produce unacceptable influence in several weeks and be not difficult, but realize that it is difficult that several months or several years do not produce unacceptable influence, will need high investment, expensive like this.So enforcement of the present utility model will reduce the requirement to charge bulk greatly, thereby simplifies its manufacturing process and cost.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; especially be not limited to the description of said apparatus structure; for those of ordinary skills; can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (6)
1. one kind is reduced the device that charge bulk and static supporting body pollute, comprise static supporting body, charge bulk, plastic cement five metals support, it is characterized in that, the force application apparatus that also comprises co-acting lever, spring and the described spring reset of antagonism, described co-acting lever is arranged in the plastic cement five metals support, and an end connects described charge bulk; Described spring is arranged between co-acting lever and the plastic cement five metals support; Described force application apparatus acts on the described co-acting lever.
2. the device that minimizing charge bulk according to claim 1 and static supporting body pollute is characterized in that described force application apparatus comprises solenoid and iron block, and described iron block is fixed on the co-acting lever; Described solenoid is fixed on the plastic cement five metals support, and the corresponding setting with described iron block of described solenoid; Hold described iron block after the described solenoid energising.
3. the device that minimizing charge bulk according to claim 2 and static supporting body pollute is characterized in that, described solenoid connects the supply unit in the electrophotographic image forming equipment, the then described solenoid energising of described supply unit energising.
4. the device that minimizing charge bulk according to claim 2 and static supporting body pollute is characterized in that, described device also comprises a controller and the command detection module of prining, and described controller connects described solenoid and the described command detection module of prining.
5. the device that minimizing charge bulk according to claim 1 and static supporting body pollute, it is characterized in that, described force application apparatus comprises driving handle and the block that is fixed in the electrophotographic image forming equipment, and an end of described driving handle connects described co-acting lever, and the other end is a free end.
6. according to the device of any described minimizing charge bulk of claim 1-5 and the pollution of static supporting body, it is characterized in that described device also comprises a stop, described stop is arranged on the described plastic cement five metals support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200305251U CN201945811U (en) | 2011-01-28 | 2011-01-28 | Device for reducing charging body contamination and static carrier contamination in field of electrostatic imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200305251U CN201945811U (en) | 2011-01-28 | 2011-01-28 | Device for reducing charging body contamination and static carrier contamination in field of electrostatic imaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945811U true CN201945811U (en) | 2011-08-24 |
Family
ID=44473148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200305251U Expired - Fee Related CN201945811U (en) | 2011-01-28 | 2011-01-28 | Device for reducing charging body contamination and static carrier contamination in field of electrostatic imaging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201945811U (en) |
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2011
- 2011-01-28 CN CN2011200305251U patent/CN201945811U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20140128 |