CN201425699Y - Gap adjuster mounted between photosensitive drum and magnetic roller - Google Patents
Gap adjuster mounted between photosensitive drum and magnetic roller Download PDFInfo
- Publication number
- CN201425699Y CN201425699Y CN2009201392029U CN200920139202U CN201425699Y CN 201425699 Y CN201425699 Y CN 201425699Y CN 2009201392029 U CN2009201392029 U CN 2009201392029U CN 200920139202 U CN200920139202 U CN 200920139202U CN 201425699 Y CN201425699 Y CN 201425699Y
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- magnetic roller
- photosensitive drums
- piece
- photosensitive drum
- locating piece
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Abstract
The utility model discloses a gap adjuster mounted between a photosensitive drum and a magnetic roller. The gap adjuster comprises an adjusting block, a positioning block and a connecting rod, whereinthe adjusting block is provided with a screw thread hole in screw thread match with one end of the connecting rod, the other end of the connecting rod is rotatably fastened inside the positioning block, the adjusting block and the positioning block are respectively fixed at two ends of a rotary shaft of the photosensitive drum and two ends of a rotary shaft of the magnetic roller, or the adjusting block and the positioning block are respectively fixed at two ends of the rotary shaft of the magnetic roller and the rotary shaft of the photosensitive drum. The connecting rod can be rotated to adjust the distance between the adjusting block and the positioning block so as to change the distance between the photosensitive drum and the magnetic roller. According to Coulomb's law F=K (Q1*Q2)/(R*R), when distance R becomes shorter, Coulomb force F becomes larger, thereby the strength of F can be maintained by adjusting the distance between the photosensitive drum and the magnetic roller so asto guarantee copy quality by employing the photosensitive drum to pass through different gaps. Accordingly, the gap adjuster has the advantages of greatly prolonging the service life of the photosensitive drum and reducing the use cost of consumers.
Description
Technical field
The utility model relates to image processing systems such as printer, duplicating machine or facsimile recorder, relates to a kind of clearance adjuster that is installed between photosensitive drums and the magnetic roller in particular.
Background technology
Electronization along with office system, image processing systems such as printer, duplicating machine and facsimile recorder are just being had by most of company, state in the use in the process of image processing system, need change consumptive material within a certain period of time and can guarantee that just image processing system can work with guaranteeing both quality and quantity, for example for laser printer, its consumptive material comprises cartridge, photosensitive drums, charhing unit, fuser, mediation powder box and useless powder box, and wherein photosensitive drums is wherein to change the consumptive material that frequency is higher and price is higher.Because photosensitive drums in use needs constantly to charge and discharge, when the access times of photosensitive drums reach a certain amount of, wearing out will appear in photosensitive drums, the most direct aging consequence is exactly the electric weight deficiency that causes photosensitive drums to produce, thereby causes copy light, and has badly influenced the copy quality, at this moment in order to ensure the quality of copy, general way is changed photosensitive drums exactly, will cause the replacing frequency ratio of photosensitive drums higher like this, thereby has increased the use cost of above-mentioned image processing system.
Figure 1 shows that in the prior art principle schematic of position relation between the photosensitive drums 1 and magnetic roller 2, two ends by left magnetic roller 2 among the figure are equipped with gap wheel 8 and spring 9 respectively, this spring 9 orders about described magnetic roller 2 and replaces photosensitive drums 1, guarantee that by the adjustment of the gap being taken turns 8 radiuses the distance between photosensitive drums 1 and the magnetic roller 2 is fixing preset value, this gap is taken turns 8 and is guaranteed also that simultaneously photosensitive drums 1 separates with magnetic roller 2.
In order to reduce the cost that the consumer uses above-mentioned image processing system, prolong the serviceable life of photosensitive drums 1, the applicant concentrated on studies several years, and made on the basis of Fig. 1 and improve design, had this case to produce then.
The utility model content
The purpose of this utility model is to provide a kind of clearance adjuster that is installed between photosensitive drums and the magnetic roller, surpass when a certain amount of at access times to solve in the prior art photosensitive drums, it is not enough and cause the copy that produces unintelligible that it produces electric weight, and photosensitive drums to change frequency too high and make problem such as consumer's use cost height.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of clearance adjuster that is installed between photosensitive drums and the magnetic roller, wherein, comprise and adjust piece, locating piece and connecting link, this adjustment piece has threaded hole, this threaded hole cooperates with the connecting link threaded one end, this connecting link other end is fastened in the locating piece in rotating mode, and this adjustment piece and locating piece are separately fixed at photosensitive drums rotating shaft terminal and magnetic roller rotating shaft terminal, and maybe this adjustment piece and locating piece are separately fixed at magnetic roller rotating shaft terminal and photosensitive drums rotating shaft terminal.
The aforementioned gap regulator also comprises the gap limit device that limits minimum spacing between photosensitive drums and the magnetic roller.
As a kind of embodiment, this gap limit device is the spacing ring on sheathed left magnetic roller or the photosensitive drums.
Further, this spacing ring is two that left magnetic roller or photosensitive drums two ends are provided with.
As another kind of embodiment, the boss of this gap limit device on locating piece or adjustment piece inboard, being provided with.
As another embodiment, the projection of this gap stop on the connecting link of adjusting between piece and the locating piece, being provided with.
Aforesaid clearance adjuster also comprises the coarse adjustment unit, this coarse adjustment unit comprises coupling shaft and elastic component, this coupling shaft connects photosensitive drums housing and magnetic roller housing, and this coupling shaft is parallel to photosensitive drums axis and magnetic roll axis, and these elastic component two ends are resisted against respectively on photosensitive drums housing and the magnetic roller housing.
After adopting said structure, when the photosensitive drums access times surpass a certain amount of and shine into copy when unintelligible, just can be by turning the distance of adjusting between piece and the locating piece down, thereby dwindle the distance between photosensitive drums and the magnetic roller, according to Coulomb law F=K (Q1*Q2)/(R*R), when distance R diminishes, it is big that the Coulomb force F at its two ends just becomes, thereby just can make that copy is clear, promptly improve the copy quality, therefore need only actual conditions according to copy, keep the size of F by the distance between adjusting photosensitive drums and the magnetic roller, can allow photosensitive drums on the different gap width of multistage, work, thereby can prolong the serviceable life of photosensitive drums, and then reduce consumer's use cost.
Description of drawings
Fig. 1 is the principle schematic of matching relationship between photosensitive drums and the magnetic roller in the prior art;
Cooperate principle schematic between a kind of clearance adjuster that Fig. 2 relates to for the utility model embodiment and photosensitive drums and the magnetic roller;
Structural representation when Fig. 3 comprises the coarse adjustment unit for the utility model embodiment;
Among the figure:
Photosensitive drums 1 photosensitive drums axis 11
Photosensitive drums housing 12 magnetic rollers 2
Locating piece 32 connecting links 33
Coarse adjustment unit 34 coupling shafts 341
Spacing ring 41 gaps wheel 8
Spring 9
Embodiment
In order further to explain the technical solution of the utility model, come below by specific embodiment that the utility model is elaborated, need to prove the identical same mark of part employing in the utility model and the prior art.
Figure 2 shows that the disclosed a kind of principle schematic that is installed in the clearance adjuster 3 between photosensitive drums 1 and the magnetic roller 2 of the utility model, this clearance adjuster 3 comprises adjusts piece 31, locating piece 32 and connecting link 33, this adjustment piece 31 has threaded hole 331, this threaded hole 331 cooperates with connecting link 33 threaded one ends, thereby make described adjustment piece 31 to slide up and down along connecting link 33, these connecting link 33 other ends are fastened in the locating piece 32 rotationally, promptly can relatively rotate between this locating piece 32 and the connecting link 33, but the displacement of connecting link 33 length directions does not take place, i.e. the displacement of vertical direction between connecting link 33 and the locating piece 32; As shown in Figure 2, in the present embodiment, this adjustment piece 31 is fixedly linked with turning axle 11 two ends of photosensitive drums 1, and the turning axle 21 of locating piece 32 and magnetic roller 2 is fixedly linked; Certainly adjust piece 31, locating piece 32 and magnetic roller 2, connection between the photosensitive drums 1 also can be changed, promptly this adjustment piece 31 also can be fixedly linked with turning axle 21 two ends of magnetic roller 2,32 turning axle 11 two ends with photosensitive drums 1 of this locating piece this moment are fixedly linked, like this, owing to can not take place along the displacement of connecting link 33 directions between connecting link 33 and the locating piece 32, can slide up and down along connecting link 33 and adjust piece 31, adjust the turning axle 11 that piece 31 and locating piece 32 are separately fixed at photosensitive drums 1 and magnetic roller 2 simultaneously, on 21, so just can realize adjusting by the bar 33 that is rotatably connected to distance between photosensitive drums 1 and the magnetic roller 2.
Rotatable engagement connection is this area means commonly used between this connecting link 33 and the locating piece 32, as a kind of embodiment wherein, the end of this connecting link 33 is provided with the bulge loop structure of protruding along the bar circumference, and locating piece 32 has a pilot hole, this pilot hole inside has annular buckle, this annular snap fastener is flexible, when mounted, this bulge loop structure is through pushing and the annular buckle of packing into, should replace the bulge loop structure by the annular buckle this moment, makes this connecting link 33 displacement of connecting link 33 directions to take place with respect to locating piece 32, and only can relatively rotate, certainly also have a lot of structures in the prior art, get final product so long as realize rotatable engaging.
Take place directly to contact for fear of between photosensitive drums 1 and the magnetic roller 2, and damage photosensitive drums 1 or magnetic roller 2, this clearance adjuster 3 also comprises gap limit device 4, this gap limit device 4 limits the minor increment on photosensitive drums 1 surface and magnetic roller 2 surfaces, this minor increment must be greater than zero, embodiment as this gap limit device 4, this gap limit device 4 can be for being set in the spacing ring 41 on magnetic roller 2 or the photosensitive drums 1, owing to will discharge and recharge continually between photosensitive drums 1 and the magnetic roller 2, preferably spacing ring 41 being provided with left magnetic roller 2 or photosensitive drums 1 two ends is provided with, embodiment shown in Figure 2 represent for spacing ring 41 is provided with on the left magnetic roller 2, this spacing ring 41 further preferably is set to two, and spacing effect can both be played simultaneously in two ends like this.
As another embodiment of this gap limit device 4, the boss (in figure do not look out) of this gap limit device on locating piece 32 or adjustment piece 31 inboards, being provided with.These locating piece 32 inboards are meant with respect to adjusting piece 31 1 sides, the thickness of this boss depends on the length of the gap limit device 4 that needs are provided with on the one hand, also depend on the length of adjusting piece 31 and locating piece 32 itself on the other hand, this boss can be set to be removably connected, also can or adjust piece 31 with described locating piece 32 is wholely set, again or directly locating piece 32 or the length of adjusting piece 31 are set to, make locating piece 32 and adjust gap between the piece 31 less than the minor increment between photosensitive drums 1 and the magnetic roller 2, so no matter how distance is adjusted between locating piece 32 and the adjustment piece 31, can both avoid coming in contact between photosensitive drums 1 and the magnetic roller 2; Again or the connecting link of adjusting between piece 31 and the locating piece 32 33 be provided with projection (not looking out among the figure), thereby the moving range of piece 31 is adjusted in restriction, comes in contact thereby limit between this photosensitive drums 1 and the magnetic roller 2.
Because the adjusting of screw thread is generally fine adjustment, so this clearance adjuster 3 can also comprise coarse adjustment unit 34, be illustrated in figure 3 as the structural representation that the utility model comprises the embodiment of coarse adjustment unit 34, this coarse adjustment unit 34 comprises coupling shaft 341 and elastic component 342, this coupling shaft 341 connects photosensitive drums housing 12 and magnetic roller housing 22, this coupling shaft 341 is parallel to photosensitive drums axis 11 and magnetic roll axis 21, and these elastic component 342 two ends are resisted against respectively on photosensitive drums housing 12 and the magnetic roller housing 22.This photosensitive drums housing 12 is fixedly linked with photosensitive drums 1, and magnetic roller housing 22 is fixedly linked with magnetic roller 2, this elastic component 342 make photosensitive drums 1 and magnetic roller 2 mutually against, thereby can utilize elastic force to come the distance between photosensitive drums 1 and the magnetic roller 2 is carried out coarse adjustment.
The course of work of the present utility model and principle of work are, when toner cartridge is made, at first the distance between photosensitive drums 1 and the magnetic roller 2 is adjusted to Position Approximate by coarse adjustment unit 34, and finely tune by screw thread, thereby make the distance between photosensitive drums 1 and the magnetic roller 2 just be standard value, it is normal use value, because photosensitive drums 1 needs charging and discharging repeatedly, when the number of times of charging and discharge reaches a certain amount of, photosensitive drums 1 will obviously occur wearing out, thereby causes copy light, at this moment finely tunes by exchanging monoblock, specifically be that the distance of adjusting between piece 31 and the locating piece 32 is turned down, and then turned distance between photosensitive drums 1 and the magnetic roller 2 down, according to Coulomb law: F=K (Q1*Q2)/(R*R), distance diminishes, thereby can increase the induction force between photosensitive drums 1 electric charge and magnetic roller 2 electric charges, and then guarantee the sharpness of copy.Can reuse this moment, after it works a period of time again copy thin out again after, can further regulate gap again, from and enter the work of next gap, go round and begin again, till this gap is clearance limit, so just the effectiveness of photosensitive drums 1 can be made full use of, thereby can reduce consumer's use cost greatly.
The foregoing description and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.
Claims (7)
1, a kind of clearance adjuster that is installed between photosensitive drums and the magnetic roller, it is characterized in that, comprise and adjust piece, locating piece and connecting link, this adjustment piece has threaded hole, this threaded hole cooperates with the connecting link threaded one end, this connecting link other end is fastened in the locating piece in rotating mode, and this adjustment piece and locating piece are separately fixed at photosensitive drums rotating shaft terminal and magnetic roller rotating shaft terminal, and maybe this adjustment piece and locating piece are separately fixed at magnetic roller rotating shaft terminal and photosensitive drums rotating shaft terminal.
2, a kind of clearance adjuster that is installed between photosensitive drums and the magnetic roller as claimed in claim 1 is characterized in that, this clearance adjuster also comprises the gap limit device that limits minimum spacing between photosensitive drums and the magnetic roller.
3, a kind of clearance adjuster that is installed between photosensitive drums and the magnetic roller as claimed in claim 2 is characterized in that, this gap limit device is the spacing ring on sheathed left magnetic roller or the photosensitive drums.
4, a kind of clearance adjuster that is installed between photosensitive drums and the magnetic roller as claimed in claim 3 is characterized in that, this spacing ring is two that left magnetic roller or photosensitive drums two ends are provided with.
5, a kind of clearance adjuster that is installed between photosensitive drums and the magnetic roller as claimed in claim 2 is characterized in that, the boss of this gap limit device for being provided with on locating piece or adjustment piece inboard.
6, a kind of clearance adjuster that is installed between photosensitive drums and the magnetic roller as claimed in claim 2 is characterized in that, the projection of this gap stop for being provided with on the connecting link of adjusting between piece and the locating piece.
7, as each described a kind of clearance adjuster that is installed between photosensitive drums and the magnetic roller of claim 1-6, it is characterized in that, this clearance adjuster also comprises the coarse adjustment unit, this coarse adjustment unit comprises coupling shaft and elastic component, this coupling shaft connects photosensitive drums housing and magnetic roller housing, this coupling shaft is parallel to photosensitive drums axis and magnetic roll axis, and these elastic component two ends are resisted against respectively on photosensitive drums housing and the magnetic roller housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201392029U CN201425699Y (en) | 2009-06-22 | 2009-06-22 | Gap adjuster mounted between photosensitive drum and magnetic roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201392029U CN201425699Y (en) | 2009-06-22 | 2009-06-22 | Gap adjuster mounted between photosensitive drum and magnetic roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425699Y true CN201425699Y (en) | 2010-03-17 |
Family
ID=42025153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201392029U Expired - Fee Related CN201425699Y (en) | 2009-06-22 | 2009-06-22 | Gap adjuster mounted between photosensitive drum and magnetic roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425699Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100924A (en) * | 2018-10-11 | 2018-12-28 | 东莞市合鼎盛自动化设备有限公司 | A kind of printer DS and LPH value adjust equipment |
| CN111157825A (en) * | 2020-01-08 | 2020-05-15 | 深圳市大隆科技有限公司 | Corona discharge detection method and device for electrical performance of functional component in electronic imaging system |
-
2009
- 2009-06-22 CN CN2009201392029U patent/CN201425699Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100924A (en) * | 2018-10-11 | 2018-12-28 | 东莞市合鼎盛自动化设备有限公司 | A kind of printer DS and LPH value adjust equipment |
| CN109100924B (en) * | 2018-10-11 | 2023-09-01 | 东莞市合鼎盛自动化设备有限公司 | Printer DS and LPH value adjusting equipment |
| CN111157825A (en) * | 2020-01-08 | 2020-05-15 | 深圳市大隆科技有限公司 | Corona discharge detection method and device for electrical performance of functional component in electronic imaging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100317 Termination date: 20120622 |