CN101063750B - Optical-scanning apparatus and image forming apparatus - Google Patents
Optical-scanning apparatus and image forming apparatus Download PDFInfo
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- CN101063750B CN101063750B CN2007101047537A CN200710104753A CN101063750B CN 101063750 B CN101063750 B CN 101063750B CN 2007101047537 A CN2007101047537 A CN 2007101047537A CN 200710104753 A CN200710104753 A CN 200710104753A CN 101063750 B CN101063750 B CN 101063750B
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Abstract
The present invention provides an optical-scanning apparatus and an image forming apparatus. In the optical-scanning apparatus, a luminous flux from a light source is deflected with a polygon mirror 32, and is focused as a light spot on a photoconductive photoreceptor 15 with a scanning and focusing optical system fitted on an optical housing 40 and scans the photoreceptor. A trap member 50 having an integrated structure of a plurality of sheet members including a highly charged electrostatic trap filter 51 which traps fine particles or the like is arranged in the optical housing 40. In another embodiment, the highly charged electrostatic trap filter 51 for trapping fine particles or the like is contained in a bag-shapped member made by the sheet material with air permeability and arranged in the optical housing 40. The invention provides an optical-scanning apparatus and image forming apparatus capbele of reducing the dirtiness of the multiaspect mirror greatly due to the turbulent flow.
Description
Technical field
The image processing system that the present invention relates to light scanning apparatus and use this light scanning apparatus, more particularly, described light scanning apparatus is by the feasible beam deflection from light source of light deflector, by being installed in the scanned imagery optical system on the optical housing (housing),, having on the photoreceptor of photoconductivity photoreceptor is scanned as the luminous point light harvesting.
Background technology
In recent years, use image processing systems such as the laser printer of light scanning apparatus of above-mentioned pattern or digital copier, for people known.In this image processing system, light scanning apparatus for example uses flat shape as shown in Figure 15 to be the polygonal mirror 100 of regular hexagon.This polygonal mirror 100 is towards the revolution of counterclockwise shown in the arrow, and because of the air negative pressure phenomenon turbulent flow takes place this moment.Because of this turbulent flow, the gyratory directions of polygonal mirror 100 is an A portion at each bight rear side relatively, and airborne dust in the light scanning apparatus or particulate etc. knock polygonal mirror 100 surfaces.Because above-mentioned phenomenon, above-mentioned A portion soon will be contaminated.If polygonal mirror 100 surface is contaminated, can causes the reflectivity of polygonal mirror 100 low, or make deterioration in image quality.
Patent documentation 1: No. 3652238 communiques of Jap.P.
Patent documentation 2: Japanese kokai publication hei 11-218710 communique
Eliminate or alleviate dirty dirty being difficult to of above-mentioned polygonal mirror with simple structure, so, in patent documentation 1, disclose with lower device: do not use the A portion of each reflecting surface of easy pollution, and be to use the dirty dirty B portion that is difficult for adhering to carry out synchronous detection, with the time shutter of control main scanning direction.
In patent documentation 2, disclose the polygonal mirror electricity that disappears, prevented its dirty dirty device.
But, in patent documentation 1,,, need cleaning or change polygonal mirror if cause deterioration in image quality thus if long-term the use can not avoid the polygonal mirror dirt dirty.In patent documentation 2, be not to remove the such positive correspondence of dirty dirty reason, but be difficult for adhering to dirty dirty, therefore, for the dirty particle weight of dirt for a long time, or turbulent flow cause dirty dirty, abundant correspondence, along with long-time running, it is dirty to be difficult to prevent to adhere to dirt.
Summary of the invention
The present invention puts forward for solving the existing problem of above-mentioned prior art.The invention provides and a kind ofly can reduce the polygonal mirror that causes because of turbulent flow dirty dirty light scanning apparatus and image processing system significantly.
To achieve these goals, the present invention proposes following scheme:
(1) a kind of light scanning apparatus, make from the beam deflection of light source, above-mentioned light beam to be had on the photoreceptor of photoconductivity as the luminous point light harvesting by light deflector by being installed in the scanned imagery optical system on the optical housing, photoreceptor is scanned, it is characterized in that:
Set the capture parts in described optical housing, described capture parts have and will comprise the incorporate structure of plural sheet component of the highly charged Electrostatic Absorption filter that is used for trap particles etc.
(2) in the light scanning apparatus of (1), it is characterized in that:
Described capture parts are to make described highly charged Electrostatic Absorption filter and have dispersing of aeration and prevent the incorporate structure of sheet.
(3) a kind of light scanning apparatus, make from the beam deflection of light source, above-mentioned light beam to be had on the photoreceptor of photoconductivity as the luminous point light harvesting by light deflector by being installed in the scanned imagery optical system on the optical housing, photoreceptor is scanned, it is characterized in that:
Set the capture parts in described optical housing, described capture parts have and will comprise the superimposed structure of plural sheet component of the highly charged Electrostatic Absorption filter that is used for trap particles etc.
(4) in the light scanning apparatus of (3), it is characterized in that:
Described capture parts are to make described highly charged Electrostatic Absorption filter and have a structure that dispersing of aeration prevents that sheet is superimposed.
(5) in the light scanning apparatus of (2) or (4), it is characterized in that:
Prevent that with described dispersing sheet from covering the two sides of the described highly charged Electrostatic Absorption filter of described capture parts.
(6) in the light scanning apparatus of (5), it is characterized in that:
In described capture parts, cover described highly charged Electrostatic Absorption filter described disperse prevent sheet around local the connection.
(7) in the light scanning apparatus of (5), it is characterized in that:
In described capture parts, described the dispersing that covers described highly charged Electrostatic Absorption filter prevents that full week of sheet from connecting.
(8) in (2), (4) in the light scanning apparatus of (5) each record, is characterized in that:
Described dispersing prevents that sheet from being the Electrostatic Absorption filter, and it is littler than described highly charged Electrostatic Absorption filter carried charge.
(9), in the light scanning apparatus of each record of (4)-(8), it is characterized in that in (2):
Described dispersing prevents that sheet from being the grid mesh part that possesses porous matter.
(10), in the light scanning apparatus of each record of (4)-(9), it is characterized in that in (2):
In the described one side that prevents sheet of dispersing the enhancing net is set.
(11) in the light scanning apparatus of (10), it is characterized in that:
Described dispersing prevents that sheet from disposing the face of described enhancing net, be set to towards easily because of gravity, and air-flow, vibration waits disperses to the machine inboard.
(12) a kind of light scanning apparatus, make from the beam deflection of light source, above-mentioned light beam to be had on the photoreceptor of photoconductivity as the luminous point light harvesting by light deflector by being installed in the scanned imagery optical system on the optical housing, photoreceptor is scanned, it is characterized in that:
Cover roughly whole of the Electrostatic Absorption filter be used for trap particles etc. with sheet component, be configured in the described optical housing with aeration.
(13) in the light scanning apparatus of (12), it is characterized in that:
Described Electrostatic Absorption filter is accommodated in the bag shape components interior of being made by the sheet material with aeration.
(14) in the light scanning apparatus of (12) or (13), it is characterized in that:
Described Electrostatic Absorption filter is the highly charged Electrostatic Absorption filter with short chain shape fiber component.
(15) in the light scanning apparatus of (13), it is characterized in that:
Described bag shape parts are made by the sheet material that man-made fiber constitutes.
(16) in the light scanning apparatus of (13), it is characterized in that:
Described bag shape parts are made by the sheet material that natural fiber constitutes.
(17) in (13), (15) in the light scanning apparatus of (16) each record, is characterized in that:
From the described Electrostatic Absorption filter of the distolateral insertion of opening of described bag shape parts, in the distolateral folding part that is provided with of this opening, by folding this folding part, closed described open end.
(18) in the light scanning apparatus of each record of (12)-(17), it is characterized in that:
The described bag shape adhering components of taking in described Electrostatic Absorption filter is configured in the described optical housing near the casing the polygonal mirror.
(19) in the light scanning apparatus of each record of (12)-(17), it is characterized in that:
The described bag shape adhering components of taking in described Electrostatic Absorption filter is configured near the covering polygonal mirror in the described optical housing.
(20) in the light scanning apparatus of each record of (12)-(17), it is characterized in that:
The described bag shape parts of taking in described Electrostatic Absorption filter are arranged on the jut, so that the face that is oppositely arranged produces the space.
(21) in the light scanning apparatus of each record of (12)-(17), it is characterized in that:
The described bag shape parts of taking in described Electrostatic Absorption filter are arranged on the holding components, so that capping produces the space relatively.
(22) a kind of image processing system is characterized in that:
Be provided with (1)-light scanning apparatus of (21) each record.
According to light scanning apparatus of the present invention and image processing system, become the dust or the particulate of the dirty dirty reason of polygonal mirror by capture, can prevent reliably that the polygonal mirror dirt is dirty, simultaneously, can suppress evils because of using highly charged Electrostatic Absorption filter to cause.
Description of drawings
Fig. 1 represents to be suitable for the skeleton diagram of image processing system of the present invention.
Fig. 2 represents the amplification key diagram of the image read-out of this image processing system.
Fig. 3 presentation video forms the stereographic map of the laser beam flying device of device.
Fig. 4 A is the front key diagram that expression capture parts of the present invention constitute.
Fig. 4 B is the stereographic map that expression capture parts of the present invention constitute.
Fig. 5 is the plane key diagram of expression capture parts one example of the present invention.
Fig. 6 A is the cross-sectional illustration figure of expression another example of capture parts of the present invention, and Fig. 6 B is the plane key diagram of expression another example of capture parts of the present invention.
Fig. 7 A is the cross-sectional illustration figure of the another example of expression capture parts of the present invention, and Fig. 7 B is the plane key diagram of the another example of expression capture parts of the present invention.
Fig. 8 is the open cross-sectional illustration figure that captures parts opening portion state of expression.
Fig. 9 is that the cross-sectional illustration figure that captures parts opening portion state is closed in expression.
Figure 10 is the plane key diagram of expression capture component configuration example of the present invention.
Figure 11 is the cross-sectional illustration figure of another configuration example of expression capture parts of the present invention.
Figure 12 is the key diagram that example is set of expression capture parts of the present invention.
Figure 13 be the expression capture parts of the present invention another be provided with the example key diagram.
Figure 14 is the plane key diagram of the another example of expression capture parts of the present invention.
Figure 15 is used to illustrate the key diagram of light scanning apparatus problem points in the past.
Embodiment
Describe the digital camera that the embodiment of the invention relates to reference to the accompanying drawings in detail.In following examples, though to inscape, kind, combination, shape, configuration waits and has done various qualifications relatively,, these only exemplify, and the present invention is not limited thereto.
Fig. 1 represents that the laser printer inside as image processing system that the present invention relates to constitutes diagrammatic illustration figure.
Digital copier shown in Figure 1 is by reading device 1, and printing portion 2 and automatic manuscript-transporting device 3 that the laser beam flying device is housed constitute.Automatic manuscript-transporting device 3 many transports institute's mounting original copy, is arranged on the original copy glass plate 4, after duplicating finishes, discharges the original copy on the original copy glass plate 4.
Fig. 2 represents the amplification key diagram of the image read-out 1 of this image processing system.Image read-out 1 comprises the 1st vehicle frame A and the 2nd vehicle frame B.Described the 1st vehicle frame A is equipped with the light source that is made of illuminating lamp 5 and catoptron 6, and the 1st reflective mirror 7, and described the 2nd vehicle frame B is equipped with the 2nd reflective mirror 8 and the 3rd reflective mirror 9.When reading original copy, described the 1st vehicle frame A moves back and forth with certain speed, described the 2nd vehicle frame B along with described the 1st vehicle frame A moves back and forth, carries out optical scanning to the original copy on the original copy glass plate 4 with 1/2nd speed of the 1st vehicle frame A, throws light on by the original copy on illuminating lamp 5 and 6 pairs of original copy glass plates 4 of catoptron, its reflected light picture is by the 1st reflective mirror 7, the 2nd reflective mirror 8, the 3 reflective mirrors 9, color filter 10, through lens 11, be imaged on the ccd sensor 12.The reflected light of the original copy of 12 pairs of imagings of ccd sensor looks like to carry out light-to-current inversion, and the output analog picture signal reads original copy.And after reading images finished, the 1st vehicle frame A and the 2nd vehicle frame B moved to original position.Also can use to be respectively equipped with R (red), G (green), the three-way CCD of the color filter of B (indigo plant) reads colored original as ccd sensor.Symbol 14 expressions are used to cool off the fan in the image read-out 1.
Analog picture signal from ccd sensor 12 passes through analog-to-digital converter, is transformed into data image signal, imposes various Flame Image Process (gray scale is handled for double quantification, many-valuedization, becomes doubly and handles editing and processing etc.) at image processing board 13.
In printing portion 2, as the photoconductor drum 15 of picture mounting body when duplicating action, be subjected to drive division to drive revolution, after making that by charging device 16 its uniform surface is charged, the data image signal that imposes Flame Image Process at above-mentioned image processing board 13 is sent to semiconductor drive plate (not diagram), according to above-mentioned data image signal image exposure is carried out by the laser beam flying device 17 as light scanning apparatus, form electrostatic latent image.Then, develop by the electrostatic latent image on 18 pairs of photoconductor drums 15 of developing apparatus.
Among paper feed 23-25, select a paper feed, supply with transfer paper from this paper feed, be sent to registration roller 26, send above-mentioned transfer paper synchronously, will be formed on video picture transfer printing on the photoconductor drum 15 on transfer paper by transfer device 20 by registration roller 26 and photoconductor drum 15 epigraphs.Then, transfer paper is separated with photoconductor drum 15, transport, after fixing device 28 photographic fixing, be discharged on the dish 29 as copy by conveyer 27 by tripping device 21.By the photoconductor drum 15 after the cleaning device 22 cleaning transfer papers separation, remove residual toner.
Laser beam flying device 17 is provided with semiconductor laser unit 30 as shown in Figure 3 on optical housing 40, cylindrical lens 31, and polygonal mirror 32, f θ lens 34, catoptron 35 and dustproof glass 36 etc., optical housing 40 top mounting covers 41 form roughly closed structure.
In laser beam flying device 17, semiconductor laser in semiconductor laser unit 30 gives off laser beam, this laser beam is transformed to parallel beam by the collimation lens in the semiconductor laser unit 30, by being located at the slit on the semiconductor laser unit 30, is shaped as the light beam of definite shape.This light beam is compressed at sub scanning direction by cylindrical lens 31, incides on the polygonal mirror 32.Polygonal mirror 32 is regular polygon, is driven by polygonal mirror motor 33 and turns round with certain speed towards certain orientation.The speed of gyration of polygonal mirror 32 is by the speed of gyration of photoconductor drum 15, and the face number of the writing density of laser beam flying device 17 and polygonal mirror 32 determines.Incide of the reflecting surface deflection of the laser beam of polygonal mirror 32 from cylindrical lens 31, incide f θ lens 34 because of polygonal mirror.34 pairs on f θ lens carry out conversion from the certain scan light of polygonal mirror 32 angular velocity, make at photoconductor drum 15 with uniform velocity scanning,, are imaged on the photoconductor drum 15 by catoptron 35 and dustproof glass 36 from the laser beam of f θ lens 34.In addition, f θ lens 34 also have the crooked correcting function of face.Laser beam by f θ lens 34 reflects at image-region external cause synchronous detection reflective mirror 37, guiding synchronization detecting sensor 38.And,, obtain becoming the synchronizing signal of the initial baseline of main scanning direction according to the detection of synchronization detecting sensor 38 output.
In laser beam flying device 17, a plurality of optical elements are housed, because of adhering in the air particulate etc., its optical property can be significantly low.Especially on the polygonal mirror 32 of high speed rotary, easily adhere to the airborne particulate that is included in the optical unit, its gyratory directions has the tendency of adhering to, not only damage the reflectivity of reflective mirror, and, change at the main scanning direction reflectivity, cause that sometimes concentration is irregular on the image.
By the Electrostatic Absorption filtration members is set near polygonal mirror 32, capture the dust or the particulate that become dirty dirty reason, can alleviate the problems referred to above.Described Electrostatic Absorption filtration members is formed by fibrous member, by making more short chain shape of this fibrous member, can make it highly charged, improves dust collecting performance.But, if high-efficiency dust collecting, use high Electrostatic Absorption filtration members, then because of air-flow, gravity, reasons such as vibration, the fibrous member that constitutes this filtration members possibility height that comes off.Fibrous member comes off, and disperses, and is attached to last occasions such as lens, becomes the major reason of in the light scanning apparatus image being brought deterioration.
So the present invention proposes following technical measures.
Fig. 4 A is the capture parts 50 of expression the present invention one example, and among the figure, symbol 51 expressions are used for the highly charged Electrostatic Absorption filter of trap particles etc., and these captures parts 50 have the feasible incorporate structure of plural sheet component that comprises described filter 51.Specifically, have dispersing of aeration by two and prevent the described highly charged Electrostatic Absorption filter 51 of sheet 52,53 clampings, like this, above-mentioned dispersing prevents that sheet 52,53 from can prevent because of air-flow, gravity, reasons such as vibration cause that the fibrous member of highly charged Electrostatic Absorption filter 51 disperses.
Fig. 4 B is the capture parts 50 of expression the present invention another example, and the highly charged Electrostatic Absorption filter 51 that these capture parts 50 will be used for trap particles etc. is accommodated in bag shape parts 52.The bag shape parts 52 of this example are to make of the such chemical fiber non-woven fabric of polypropylene, but the present invention is not limited thereto, bag shape parts 52 materials also can be used for example other chemical fiber non-woven fabrics such as tygon or viscose rayon, perhaps also can use and for example be used for for example paper of the thick natural material of the such mesh of tea bag, cotton, silk etc.Importantly, select the rugosity of expression bag shape parts 52 width of meshs, do not make the fibre shedding of highly charged Electrostatic Absorption filter 51 in light scanning apparatus, and can be by the particulate as the capture object.
On bag shape parts 52, form the opening portion, the Electrostatic Absorption filter 51 of packing into highly charged from this opening portion, after this, closed above-mentioned opening portion constitutes capture parts 50.
Below with reference to Fig. 5,6A, 6B, 7A, 7B illustrates the different examples that are suitable for capture parts 50 of the present invention.
The capture parts 50 of Gou Chenging can be installed in the optical housing 40 by framework 60 like this, and this charge and discharge operations that captures parts 50 is good, compares with later installation framework, and is with low cost.
Above-mentioned dispersing prevents that sheet 52,53 has aeration, if can prevent the tablet that the fibrous member of inboard highly charged Electrostatic Absorption filter 51 disperses, can use appropriate ones, be preferably, use the good sieve aperture shape parts of aeration to prevent the material of sheet 52,53 as above-mentioned dispersing.Can select the Electrostatic Absorption filter to prevent sheet 52,53 as above-mentioned dispersing, this occasion is selected than the low person of inboard highly charged Electrostatic Absorption filter 51 chargeding performances.Usually, the fiber that the Electrostatic Absorption filter that chargeding performance is high constitutes it mostly is the short chain shape, external force is had easily come off, and falls the tendency of dispersing.In contrast, the fiber of the Electrostatic Absorption filter of the few type of carried charge be not the short chain shape, is difficult for dispersing, and therefore, fully has conduct and disperses and prevent the function of sheet.And, although be inferior to highly charged Electrostatic Absorption filter 51, also have the function that particulate in the air is caught in absorption.
For the capture parts 50 shown in Fig. 4 B, generally adopt the bonding method of paste, but the present invention is not limited thereto as closed bag shape parts 52 opening portions, also can adopt for example bookbinding, the method for miscellaneous part is used in clampings etc.This method of closing causes that cost rises no matter what occasion all needs operation.
So, as shown in Figure 8, do not use links such as paste or binder, can be with the closed opening portion of simple operation.
Fig. 8 is the open cross-sectional illustration figure that captures parts opening portion state of expression.Bag shape parts 52 as shown in Figure 8 use and for example are used for the thick paper making of the such mesh of tea bag, and the diagram top forms opening portion 53, is used to insert Electrostatic Absorption filter 51.Be provided with the return portion 54 with continuous width at these opening portion 53 1 ends, the both sides of described return portion 54 are fixed on bag sidepiece of shape parts 52.Therefore, when the capture parts 50 of Fig. 8 were reversed, return portion 54 became a bag shape.
Then, behind the insertion Electrostatic Absorption filter 51,, cover opening portion 53 with this return portion 54 because making such as this bag shape parts 52 usefulness flexible paper are easy to folding described return portion 54, can closed this opening portion 53 (with reference to Fig. 9).Therefore,, also can seal opening portion 53, can prevent from Electrostatic Absorption filter 51 fiber that comes off even do not use links such as paste or binder.Change Electrostatic Absorption filter 51 occasions, can open the return portion 54 of end once more, it is also simple to change operation.
The following describes and capture parts 50 and in optical housing 40, place and method to set up be set.
Common and the fan of Electrostatic Absorption filter, scraper plate etc. are used in combination, trap debris, particulate etc.In this example, do not use fan, scraper plate etc., cause air-flow by polygonal mirror 32 revolutions, few by the air capacity that captures parts, still, capture parts 50 and use highly charged Electrostatic Absorption filter 51, therefore, even do not use fan, scraper plate etc. also can capture the particulate in the optical housing 40.Therefore, be positioned at optical housing 40,, can both expect the micro particle catching effect no matter be arranged on which position if capture parts 50.
And,, will capture parts 50 and be arranged near the polygonal mirror 32 in order more effectively to prevent the dirty dirty of polygonal mirror 32.Especially, as shown in figure 10, be arranged on reflecting surface subtend with polygonal mirror 32 if will capture parts 50, then the air-flow that produces of polygonal mirror 32 revolutions is directly run into capture parts 50, trap particles effectively.
As shown in figure 11, also can be configured in polygonal mirror 32 tops, can obtain good capture effect, can prevent that polygonal mirror 32 is dirty dirty capturing parts 50.
Be confined space roughly in the optical housing 40, capture parts 50, can both produce effect, but, be preferably, will capture parts 50 and be arranged near the polygonal mirror 32 in order more effectively to prevent the dirty dirty of polygonal mirror 32 regardless of therein where.At Fig. 4 B, Fig. 8, embodiment illustrated in fig. 9 in, highly charged Electrostatic Absorption filter 51 structures are taken in employing in bag shape parts 52, therefore, and as shown in figure 12, can will capture the suitable place that parts 50 are bonded in the casing 41 of optical housing 40 by bag shape parts 52, be provided with.Owing to can be provided with by bonding bag shape parts 52 and capture parts 50, therefore, also can be arranged on the lid 42 of the optical housing 40 that is used to cover casing 41.
The capture area that highly charged Electrostatic Absorption filter 51 in the capture parts 50 contacts with air is big more, and effect is good more.Therefore, as shown in figure 12, if the one side side of bonding bag shape parts 52, then the face of the bonding side of Electrostatic Absorption filter 51 and casing 41 or cover between 42 the bonding plane and can not form the space can reduce arresting efficiency to a certain extent.
So, in the embodiment of Figure 13, at the casing 41 of optical housing 40 and/or cover support 43,44 is set on 42, being provided with therein and capturing parts 50, restriction captures parts 50 and moves.And, on this support 43,44, being respectively equipped with projection 45, mounting trap portion spare 50 on this projection 45 forms the space capturing parts 50 and be provided with between the face.Like this, the highly charged Electrostatic Absorption filter 51 that captures in the parts 50 increases with the air contact area, more effectively trap particles.
Example shown in Figure 14 is at the example that prevents to be provided on the sheet 52,53 to strengthen the mesh members 55 of itself as dispersing of Electrostatic Absorption filter.Mesh members 55 prevents that sheet 52,53 from forming as one with dispersing, and strengthens described dispersing and prevents sheet 52,53, has inhibition and comes off because of external force, falls the function of dispersing.Therefore, dispersing prevents that sheet 52,53 has and is difficult for falling from the emaciated face that is provided with mesh members 55, falls, the function of the fibrous member that constitutes sheet of dispersing.Like this, can improve the processing of filter, can increase the selection face that prevents the material that sheet uses as dispersing, improve design freedom.
The mesh members 55 that prevents sheet 52,53 of dispersing shown in Figure 14 is located on the one side of this sheet, and the face that mesh members 55 is set is subject to gravity for forming the parts that capture parts, air-flow, influence such as vibration and the side of dispersing are in this example, be made as the face of sheet 53 downsides, can obtain good result.
Above with reference to description of drawings embodiments of the invention, but the present invention is not limited to the foregoing description.Can do all changes in the technology of the present invention thought range, they all belong to protection scope of the present invention.
Claims (22)
1. light scanning apparatus, make from the beam deflection of light source, above-mentioned light beam to be had on the photoreceptor of photoconductivity as the luminous point light harvesting by light deflector by being installed in the scanned imagery optical system on the optical housing, photoreceptor is scanned, it is characterized in that:
Light scanning apparatus comprises:
Above the polygonal mirror in described optical housing and the position relative with described polygonal mirror is provided with the space with the wall of described optical housing and is bearing in the framework of described optical housing by pin; And
Set and be used to capture the capture parts of dust, particulate on described framework, described capture parts have and will comprise the incorporate structure of plural sheet component of the highly charged Electrostatic Absorption filter that is used for trap particles.
2. according to the light scanning apparatus of record in the claim 1, it is characterized in that:
Described capture parts are to make described highly charged Electrostatic Absorption filter and have dispersing of aeration and prevent the incorporate structure of sheet.
3. light scanning apparatus, make from the beam deflection of light source, above-mentioned light beam to be had on the photoreceptor of photoconductivity as the luminous point light harvesting by light deflector by being installed in the scanned imagery optical system on the optical housing, photoreceptor is scanned, it is characterized in that:
Light scanning apparatus comprises:
Above the polygonal mirror in described optical housing and the position relative with described polygonal mirror is provided with the space with the wall of described optical housing and is bearing in the framework of described optical housing by pin; And
Set and be used to capture the capture parts of dust, particulate on described framework, described capture parts have and will comprise the superimposed structure of plural sheet component of the highly charged Electrostatic Absorption filter that is used for trap particles.
4. according to the light scanning apparatus of record in the claim 3, it is characterized in that:
Described capture parts are to make described highly charged Electrostatic Absorption filter and have a structure that dispersing of aeration prevents that sheet is superimposed.
5. according to the light scanning apparatus of claim 2 or 4 records, it is characterized in that:
Prevent that with described dispersing sheet from covering the two sides of the described highly charged Electrostatic Absorption filter of described capture parts.
6. according to the light scanning apparatus of claim 5 record, it is characterized in that:
In described capture parts, cover described highly charged Electrostatic Absorption filter described disperse prevent sheet around local the connection.
7. according to the light scanning apparatus of claim 5 record, it is characterized in that:
In described capture parts, described the dispersing that covers described highly charged Electrostatic Absorption filter prevents that full week of sheet from connecting.
8. according to claim 2, the light scanning apparatus of 4 each records is characterized in that:
Described dispersing prevents that sheet from being the Electrostatic Absorption filter, and it is littler than described highly charged Electrostatic Absorption filter carried charge.
9. according to claim 2, the light scanning apparatus of 4 each records is characterized in that:
Described dispersing prevents that sheet from being the grid mesh part that possesses porous matter.
10. according to claim 2, the light scanning apparatus of 4 each records is characterized in that:
In the described one side that prevents sheet of dispersing the enhancing net is set.
11. the light scanning apparatus according to claim 10 record is characterized in that:
Described dispersing prevents that sheet from disposing the face of described enhancing net, is set to towards easily dispersing to the machine inboard because of gravity, air-flow, vibration.
12. light scanning apparatus, make from the beam deflection of light source, above-mentioned light beam to be had on the photoreceptor of photoconductivity as the luminous point light harvesting by light deflector by being installed in the scanned imagery optical system on the optical housing, photoreceptor is scanned, it is characterized in that:
Set the capture parts in described optical housing, described capture parts have and will comprise the incorporate structure of plural sheet component of the highly charged Electrostatic Absorption filter that is used for trap particles;
Described capture parts are to make described highly charged Electrostatic Absorption filter and have dispersing of aeration and prevent the incorporate structure of sheet;
On the lid (42) of optical housing (40), holding components (43,44) is set, is provided with therein and captures parts (50);
Described holding components (43,44) is provided in the top of polygonal mirror (32) in described lid (42), and with the position of polygonal mirror (32) subtend;
Bag shape parts are arranged on the described holding components, so that capping produces the space relatively;
On described holding components (43,44), be respectively equipped with projection (45), go up mounting trap portion spare (50), form the space between the face to being provided with of holding components at capture parts (50) and capture parts (50) in this projection (45).
13. the light scanning apparatus according to record in the claim 12 is characterized in that:
Described Electrostatic Absorption filter is accommodated in the bag shape components interior of being made by the sheet material with aeration.
14. the light scanning apparatus according to claim 12 or 13 records is characterized in that:
Described Electrostatic Absorption filter is the highly charged Electrostatic Absorption filter with short chain shape fiber component.
15. the light scanning apparatus according to record in the claim 13 is characterized in that:
Described bag shape parts are made by the sheet material that man-made fiber constitutes.
16. the light scanning apparatus according to record in the claim 13 is characterized in that:
Described bag shape parts are made by the sheet material that natural fiber constitutes.
17. according to claim 13, the light scanning apparatus of 15,16 each records is characterized in that:
From the described Electrostatic Absorption filter of the distolateral insertion of opening of described bag shape parts, in the distolateral folding part that is provided with of this opening, by folding this folding part, closed described open end.
18. according to claim 12, the light scanning apparatus of 13,15,16 each records is characterized in that:
The described bag shape adhering components of taking in described Electrostatic Absorption filter is configured in the described optical housing near the casing the polygonal mirror.
19. according to claim 12, the light scanning apparatus of 13,15,16 each records is characterized in that:
The described bag shape adhering components of taking in described Electrostatic Absorption filter is configured near the covering polygonal mirror in the described optical housing.
20. according to claim 12, the light scanning apparatus of 13,15,16 each records is characterized in that:
The described bag shape parts of taking in described Electrostatic Absorption filter are arranged on the jut, so that the face that is oppositely arranged produces the space.
21. according to claim 12, the light scanning apparatus of 13,15,16 each records is characterized in that:
The described bag shape parts of taking in described Electrostatic Absorption filter are arranged on the holding components, so that capping produces the space relatively.
22. an image processing system is characterized in that:
Be provided with the light scanning apparatus of each record among the claim 1-21.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006123525A JP4881650B2 (en) | 2006-04-27 | 2006-04-27 | Optical scanning apparatus and image forming apparatus |
| JP2006123524 | 2006-04-27 | ||
| JP2006-123525 | 2006-04-27 | ||
| JP2006123525 | 2006-04-27 | ||
| JP2006123524A JP5145651B2 (en) | 2006-04-27 | 2006-04-27 | Optical scanning apparatus and image forming apparatus |
| JP2006-123524 | 2006-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101063750A CN101063750A (en) | 2007-10-31 |
| CN101063750B true CN101063750B (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101047537A Expired - Fee Related CN101063750B (en) | 2006-04-27 | 2007-04-26 | Optical-scanning apparatus and image forming apparatus |
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| Country | Link |
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| JP (1) | JP5145651B2 (en) |
| CN (1) | CN101063750B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6339491B1 (en) * | 1998-12-09 | 2002-01-15 | Fuji Photo Film Co., Ltd. | Dustproof structure of optical box |
| CN1231718C (en) * | 2002-12-23 | 2005-12-14 | 三星电子株式会社 | Air purifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61153157A (en) * | 1984-12-26 | 1986-07-11 | Sharp Corp | Filter for ventilation port of copying machine |
| JPH0515697A (en) * | 1991-07-16 | 1993-01-26 | Toshiba Corp | Dryer for washing clothes |
| JP3293239B2 (en) * | 1993-05-13 | 2002-06-17 | 富士ゼロックス株式会社 | Dust collection filter for image forming equipment |
| JPH0716411A (en) * | 1993-06-30 | 1995-01-20 | Kureha Chem Ind Co Ltd | Composite filter |
| JPH0862528A (en) * | 1994-08-25 | 1996-03-08 | Canon Inc | Optical scanner |
| JPH0980347A (en) * | 1995-09-12 | 1997-03-28 | Canon Inc | Optical deflecting device |
| JPH11188228A (en) * | 1997-12-26 | 1999-07-13 | Toshio Ikeda | Air-cleaning filter |
| JPH11218710A (en) * | 1998-02-04 | 1999-08-10 | Canon Inc | Scanning optical device |
| JPH11264949A (en) * | 1998-03-16 | 1999-09-28 | Canon Inc | Optical deflector |
| JPH11281909A (en) * | 1998-03-31 | 1999-10-15 | Sankyo Seiki Mfg Co Ltd | Optical scanner |
| JPH11300138A (en) * | 1998-04-17 | 1999-11-02 | Kawai Musical Instr Mfg Co Ltd | Purifying filter and air purifier |
| JP2002210383A (en) * | 2001-01-22 | 2002-07-30 | Toyo Commun Equip Co Ltd | Electrostatic filter |
| JP4744830B2 (en) * | 2004-09-09 | 2011-08-10 | 株式会社パウレック | filter |
| JP4830278B2 (en) * | 2004-09-10 | 2011-12-07 | カシオ計算機株式会社 | Fuel cell system and fuel container for power generation |
| JP4669780B2 (en) * | 2005-12-16 | 2011-04-13 | 株式会社リコー | Optical scanning apparatus and image forming apparatus |
-
2006
- 2006-04-27 JP JP2006123524A patent/JP5145651B2/en not_active Expired - Fee Related
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2007
- 2007-04-26 CN CN2007101047537A patent/CN101063750B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6339491B1 (en) * | 1998-12-09 | 2002-01-15 | Fuji Photo Film Co., Ltd. | Dustproof structure of optical box |
| CN1231718C (en) * | 2002-12-23 | 2005-12-14 | 三星电子株式会社 | Air purifier |
Non-Patent Citations (2)
| Title |
|---|
| JP平11-183836A 1999.07.09 |
| JP平11-281909A 1999.10.15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5145651B2 (en) | 2013-02-20 |
| CN101063750A (en) | 2007-10-31 |
| JP2007293201A (en) | 2007-11-08 |
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