CN1881005A - Laser scanning device - Google Patents
Laser scanning device Download PDFInfo
- Publication number
- CN1881005A CN1881005A CNA2006100925972A CN200610092597A CN1881005A CN 1881005 A CN1881005 A CN 1881005A CN A2006100925972 A CNA2006100925972 A CN A2006100925972A CN 200610092597 A CN200610092597 A CN 200610092597A CN 1881005 A CN1881005 A CN 1881005A
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- China
- Prior art keywords
- lid member
- laser scanning
- scanning device
- main body
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000428 dust Substances 0.000 claims abstract description 42
- 230000007423 decrease Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
- G03G21/1828—Prevention of damage or soiling, e.g. mechanical abrasion
- G03G21/1832—Shielding members, shutter, e.g. light, heat shielding, prevention of toner scattering
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/04—Arrangements for exposing and producing an image
- G03G2215/0402—Exposure devices
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1636—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the exposure unit
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Mechanical Optical Scanning Systems (AREA)
Abstract
A laser scanning device includes a device body, and a rotating polygonal mirror rotatably mounted in the device body and deflecting light projected from a light source. A cover member is mounted in the device body to cover the rotating polygonal mirror. The cover member has a slit for transmitting the light and an influent hole for letting external air flow in, and forms an air current rotating and descending at high speed around the rotating polygonal mirror. A dust collection member filters off dust included in the air flowing into the cover member through the influent hole by the air current generated in the cover member.
Description
Technical field
The present invention relates to a kind of laser scanning device at predetermined direction deflection incident light.
Background technology
Usually, the imaging device such as laser printer, duplicating machine, scanner and multifunctional equipment has laser scanning device.
In laser scanning device, from the light of light source projects by with the specular surface of the polygonal rotating mirror of high speed rotating in predetermined direction deflection.The light of deflection is by predetermined optical system and enter light-sensitive medium such as photosensitive drums.
Along with imaging device trends towards high speed performance, the rotational speed of polygonal rotating mirror increases.When with this polygonal rotating mirror of high speed rotating, the surrounding air that comprises the polygonal rotating mirror of inner dust has produced air-flow fast in the main body of laser scanning device.Therefore, the dust that is disperseed by air-flow can attach to specular surface.So when specular surface was contaminated, optical reflectance reduced, correspondingly worsened deflection optical.
Some laser scanning devices comprise that also the unit that is in the light prevents to make light by mistake be projected the outside during the maintenance of equipment or by this equipment of maloperation.Yet the conventional unit that is in the light has a plurality of parts, and such as elastic component, shutter and driving motor, the conventional unit that is in the light needs complicated structure and special-purpose drive source.
Therefore, exist preventing the demand of the contaminated laser scanning device of polygonal rotating mirror.
Summary of the invention
According to one exemplary embodiment of the present invention, the pollution of the polygonal rotating mirror that the subsidiary dust of the air-flow that a kind of laser scanning device produces in the time of can preventing by polygonal rotating mirror substantially causes.
Another aspect of the present invention provides a kind of air-flow that uses can prevent substantially automatically that light from by mistake being projected outside laser scanning device, and does not need special-purpose drive source.
According to one exemplary embodiment of the present invention, a kind of laser scanning device comprises: apparatus main body; Be installed in the apparatus main body rotatably and deflection from the polygonal rotating mirror of the light of light source projects.The lid member is installed in the apparatus main body to cover polygonal rotating mirror.The ostium that the lid member has the slit that is used for transmitted light and allows outer gas stream go into is used to form around the air-flow of described polygonal rotating mirror high speed rotating and decline.The control of dust member filters out the ostium that passes through that is caused by the air-flow that produces and flows into the dust that comprises in the air that covers in the member in the lid member.
The lid member have the shape of basic dome, in it without leave top increase to the lower part, be asymmetric in vertical direction.
The lid member is included in a plurality of connection ribs of its lower end, is used for being connected with the basal surface of apparatus main body.
The basal surface of apparatus main body comprises the circuit board of controlling and driving motor, and driving motor rotates this polygonal rotating mirror.
The lid member comprises: the first step part of covering the gap between the basal surface of member and apparatus main body being used to form of its lower end; And be used to form the second step part in the gap of covering between member and the circuit board.
The second step part is provided with corresponding to the bight of circuit board.
Ostium has the seat part that is used for holding along its periphery the control of dust member.
The control of dust member is a porous mass.
According to another one exemplary embodiment of the present invention, laser scanning device comprises: apparatus main body; Be installed in the apparatus main body rotatably and deflection from the polygonal rotating mirror of the light of light source projects.The lid member is installed in the apparatus main body to cover polygonal rotating mirror.The ostium that the lid member has the slit that is used for transmitted light and allows outer gas stream go into is used to form around the air-flow of described polygonal rotating mirror high speed rotating and decline.The unit that is in the light is operated by the air-flow that produces in the member at lid, opens and closes slit thus.
The unit that is in the light comprises baffle plate in the projected path that is arranged at light.Turning axle is connected to baffle plate and is hinged to by its two ends and covers member.
The lid member have the shape of basic dome, in it without leave top increase to the lower part, be asymmetric in vertical direction.
The lid member has a plurality of connection ribs in its lower end, is used for being connected with the basal surface of apparatus main body.
The basal surface of apparatus main body comprises the circuit board of controlling and driving motor, and driving motor rotates this polygonal rotating mirror.
The lid member comprises: the first step part of covering the gap between the basal surface of member and apparatus main body being used to form of its lower end.Second step partly forms the gap of covering between member and the circuit board.
The second step part is provided with corresponding to the bight of circuit board.
According to another one exemplary embodiment of the present invention, laser scanning device comprises: apparatus main body; Be installed in the apparatus main body rotatably and deflection from the polygonal rotating mirror of the light of light source projects.The lid member is installed in the apparatus main body to cover polygonal rotating mirror.The ostium that the lid member has the slit that is used for transmitted light and allows outer gas stream go into is used to form around the air-flow of described polygonal rotating mirror high speed rotating and decline.The unit that is in the light is operated by the air-flow that produces in the member at lid, opens and closes slit thus.The control of dust member filters out by ostium and flows into the dust that comprises in the air that covers in the member.
Ostium has the seat part that is used for holding along its periphery the control of dust member.
The control of dust member is a porous mass.
In conjunction with the accompanying drawing that discloses one exemplary embodiment of the present invention, from following detailed description, other purpose of the present invention, advantage and notable attribute will become obvious for those skilled in the art.
Description of drawings
With reference to the accompanying drawings, by describing one exemplary embodiment of the present invention in detail, above aspect of the present invention and other features will become more obvious, in the accompanying drawings:
Fig. 1 is the skeleton view according to the laser scanning device of one exemplary embodiment of the present invention;
Fig. 2 is the decomposition diagram of the laser scanning device of Fig. 1;
Fig. 3 is the end skeleton view of the lid member of Fig. 2;
Fig. 4 is the synoptic diagram according to the laser scanning device of one exemplary embodiment of the present invention;
Fig. 5 is the decomposition diagram according to the laser scanning device of another one exemplary embodiment of the present invention;
Fig. 6 is the end skeleton view of the lid member of Fig. 5 and the unit that is in the light;
Fig. 7 A and 7B are the synoptic diagram according to the laser scanning device of another one exemplary embodiment of the present invention; With
Fig. 8 is the decomposition diagram according to the laser scanning device of another one exemplary embodiment of the present invention.
Run through accompanying drawing, identical referenced drawings label will be understood indication components identical, feature and structure.
Embodiment
Hereinafter, will be described in detail with reference to the attached drawings one exemplary embodiment more of the present invention.
The content that is defined in the detailed description such as detailed structure and its element, is of the present invention with helping complete understanding.Therefore, obviously the present invention can carry out under the situation that does not have those contents that define.And, omitted known function and structure clear and succinct detailed description are provided.
With reference to Fig. 1 and 2, the laser scanning device of one exemplary embodiment comprises according to the present invention: apparatus main body 10; Be installed on the light source 20 in the apparatus main body 10; With the polygonal rotating mirror 30 of deflection from the light of light source 20 projections.Driving motor 40 these polygonal rotating mirrors 30 of rotation.Circuit board 50 controlling and driving motor 40.Lid member 60 covers polygonal rotating mirror 30, and has connected control of dust member 70.
Optical component, for example collimation lens (not shown) and cylindrical lens (not shown) sequentially are arranged between light source 20 and the polygonal rotating mirror 30.The light that collimation lens will throw is converted to directional light or converging light.The slit (not shown) is arranged at the light of the front of collimation lens with the restricted passage collimation lens.Cylindrical lens will focus on the specular surface of polygonal rotating mirror 30 by the light of collimation lens.Therefore, enter a side of polygonal rotating mirror 30 with essentially identical angle by the light of cylindrical lens.
Polygonal rotating mirror 30 comprises a plurality of specular surfaces 31 in its outside, with will be from the light deflection of light source 20 to predetermined target, for example photosensitive drums.Because polygonal rotating mirror 30 supports and high speed rotating by driving motor 40, polygonal rotating mirror 30 can change the position of specular surface with respect to incident light, deflection thus.
Further provide the optical component (not shown) that the light from polygonal rotating mirror 30 deflections is directed to predetermined target.More specifically, can provide f θ lens and catoptron to come the most at last to focus on the final goal from the light of polygonal rotating mirror 30 deflections.Because above optical component is generally used in the conventional laser scanning device, so omitted its detailed description here.
Ostium (influent hole) 62 is formed at the top board that covers member 60 and flows into to allow outside gas.One or more ostiums 62 can be formed at the top board that covers member 60 with circular or polygonal form.Preferably, a circular ostium 62 basically forms in the center of lid member 60, as illustrated in fig. 1 and 2.By the air-flow that the high speed rotating by polygonal rotating mirror 30 produces, member 60 is covered in 62 inflows thereby extraneous air passes through ostium.Because lid member 60 has the shape of basic dome, and ostium 62 is formed at the top board that cover member 60, flow into the air that covers in the member 60 in covering member 60 top and the lower part between have different flowing propertys, such as pressure, speed and direction.
In addition, in lid member 60, provide slit 63 with the light of transmission by polygonal rotating mirror 30 deflections.Slit 63 has predetermined width and has predetermined length at horizontal direction in vertical direction.Escape into the outside by ostium 62 leaked-in airs by slit 63, and therefore changed the flowing property (pressure, speed and direction) of the air-flow that in lid member 60, produces by polygonal rotating mirror 30.
As shown in Figure 3, a pair of first step part 64 and a second step part 65 are formed at the lower end of covering member 60.In the time will covering member 60 and be installed on apparatus main body 10, first step part 64 is arranged at the position corresponding to the bight 51 of circuit board 50.Therefore, first step part 64 prevents the bight 51 of circuit board 50 and the interference between the lid member 60, as shown in Figure 4.In addition, first clearance G 1 can be formed between first step part 64 and the bight 51.Second step part 65 is arranged at the position of covering board 50, makes second clearance G 2 can be formed between the lower end of circuit board 50 and lid member 60.
When lid member 60 is installed in the apparatus main body 10, clearance G 1 and G2 have been produced by first and second step parts 64 and 65.Therefore, the air-flow that produces in lid member 60 by the rotation of polygonal rotating mirror 30 is guided downward owing to the half-spherical construction of lid member 60.Then, the part air communication is crossed slit 63 and is overflowed, and the other parts air communication is crossed clearance G 1 and G2 overflows.
Control of dust member 70 filters out by ostium 62 and flows into the dust that comprises in the air that covers in the member 60.For this purpose, control of dust member 70 can be made of porous materials, and such as sponge or general air strainer, is used to filter out dust and air is therefrom passed through.Control of dust member 70 can be contained in simply among the seat part 62a that the periphery of longshore current hand-hole 62 forms and maybe can fix by cementing agent.Seat part 62a can comprise from the outstanding circular rib of the periphery of ostium 62.
As shown in Figure 4, in the laser scanning device according to one exemplary embodiment of the present invention, when polygonal rotating mirror 30 high speed rotating, extraneous air flows into by the ostium 62 that covers member 60.Because extraneous air filters by control of dust member 70, only there is the gas inflow of purification to cover member 60.Flow into the air that covers in the member 60 because the shape of the hemisphere of lid member 60 is directed to the lower part from top.Then, the part air escapes into the outside of covering member 60 by slit 63.The remainder air is directed into the lower part of covering member 60 and passes through clearance G 1 and the G2 discharge.As mentioned above, the air-flow in the lid member 60 does not always rest on a position because of the different flowing property (pressure, speed and direction) between top and the lower part.Therefore, though air-flow still comprises the fine dust that some are not filtered by control of dust member 70, fine dust is not easy to attach on the polygonal rotating mirror 30.
When the air by clearance G 1 and G2 discharge cap member 60 flows back to and repeat this circulation time by ostium 62, be included in that dust in air is most of to be filtered out by control of dust member 70.Therefore, can reduce dust floating in apparatus main body 10, prevent the pollution of optical component thus substantially.
With reference to figure 5 and 6, comprise according to the laser scanning device of another one exemplary embodiment of the present invention: apparatus main body 10; Be installed on the light source 20 in the apparatus main body 10; With the polygonal rotating mirror 30 of deflection from the light of light source 20 projections.Driving motor 40 these polygonal rotating mirrors 30 of rotation.Circuit board 50 controlling and driving motor 40.Lid member 60 covers the polygonal rotating mirror 30 and the unit 80 that is in the light.Because with employed identical reference marker indication components identical in last embodiment (Fig. 1 to 3), so no longer describe the structure and the operation of described element.
The unit 80 that is in the light pivots by the air-flow that produces when polygonal rotating mirror 30 high speed rotating, thus transmission or stop light by slit 63 projections.The unit 80 that is in the light comprises baffle plate 81 and turning axle 83.
Baffle plate 81 is pivotally installed in the projected path of light with transmission or stops the light that projects slit 63.Baffle plate 81 is preferably formed by thin member (for example film), pivots with the air-flow that produces by the high speed rotating by polygonal rotating mirror 30.
Turning axle 83 is connected to baffle plate 81.Turning axle 83 is hinged to the inside of covering member 60.The two ends 83a of turning axle 83 and 83b insert hinge groove 66a and the 66b that is formed at the both sides of covering member 60 respectively.
In the laser scanning device of above structure, shown in Fig. 7 A, when polygonal rotating mirror 30 high speed rotating, extraneous air flows into by ostium 62 and covers member 60.Because lid member 60 has the shape of basic hemisphere, so air is directed to the lower part from top and part is discharged by slit 63 and part is discharged to the outside of covering member 60 by clearance G 1 and G2.Discharge at a high speed in the air-flow of lid member 60 by slit 63 and to rotate up baffle plate 81, opened light path thus.Therefore, by slit 63 and predetermined optical system, and enter light-sensitive medium by the light of polygonal rotating mirror 30 deflections, such as photosensitive drums.
Simultaneously, shown in Fig. 7 B, when polygonal rotating mirror 30 stops the rotation, no longer produce air-flow in lid member 60, therefore the air that covers in the member 60 is not discharged to the outside by slit 63 yet.Therefore, the baffle plate 81 of the unit 80 that is in the light returns initial position by its deadweight, stops light path thus.Therefore, the light by polygonal rotating mirror 30 deflections can not pass through slit 63, can not enter light-sensitive medium, such as photosensitive drums.
Owing to be installed on the existence of covering the unit 80 that is in the light in the member 60 pivotally, can prevent substantially that light from by mistake being projected the outside.In addition, because the unit 80 that is in the light is pivoted by the air-flow that the high speed rotating by polygonal rotating mirror 30 produces, laser scanning device does not need to be exclusively used in the device of operating the unit 80 that is in the light.
With reference to figure 8, comprise according to the laser scanning device of another one exemplary embodiment of the present invention: apparatus main body 10; Be installed on the light source 20 in the apparatus main body 10; With the polygonal rotating mirror 30 of deflection from the light of light source 20 projections.Driving motor 40 these polygonal rotating mirrors 30 of rotation.Circuit board 50 controlling and driving motor 40.Lid member 60 covers this polygonal rotating mirror 30, this collecting unit of dust 70 and this unit 80 that is in the light.Because indicate components identical with employed identical reference marker in previous embodiment (Fig. 1 to 3 and Fig. 5 and 6), so no longer describe the structure and the operation of described element.
In the laser scanning device of above structure, the lid member 60 that polygonal rotating mirror 30 is had the shape of basic hemisphere covers, and makes polygonal rotating mirror 30 can fundamentally avoid the pollution of external dust.
When polygonal rotating mirror 30 high speed rotating, extraneous air flows into by the ostium 62 that covers member 60.Because extraneous air is filtered by control of dust member 70, only the gas that purifies flows into and covers member 60.Therefore, can reduce dust floating in the apparatus main body 10, prevent the pollution of optical component thus substantially.
The unit 80 that is in the light pivots by the air-flow that produces when polygonal rotating mirror 30 high speed rotating, make thus the light that projects slit 63 by or stop the light that projects slit 63.The unit 80 that is in the light comprises baffle plate 81 and turning axle 83.Owing to be installed on the existence of covering the unit 80 that is in the light in the member 60 pivotally, can prevent substantially that light from by mistake being projected the outside.In addition, because the unit 80 that is in the light pivots by the air-flow that the high speed rotating by polygonal rotating mirror 30 produces, so laser scanning device does not need to be exclusively used in the device of operating the unit 80 that is in the light.
As understanding from above description, the pollution of polygonal rotating mirror is covered member covering polygonal rotating mirror by use and is prevented substantially.
In addition,, and catch when the polygonal rotating mirror high speed rotating and to flow into the dust that comprises in the air that covers in the member, so can prevent the pollution of the polygonal rotating mirror that causes by dust substantially because the control of dust member is arranged in the ostium that is formed at the upper end of covering member.In addition, the optical component that can prevent from substantially to be installed in the apparatus main body is contaminated.And, can reduce the amount of dust.
In addition, be in the light the unit by and stopped the light that throws by the slit that cover member, and can prevent substantially that light from by mistake being projected the outside from device.
And, because the unit that is in the light rotates by the air-flow that the high speed rotating by polygonal rotating mirror produces, and not needing special-purpose drive unit, the structure of device can be simplified.
Though specifically show and described the present invention with reference to its one exemplary embodiment, yet one of ordinary skill in the art is appreciated that, do not breaking away under the situation of the spirit and scope of the present invention that define by claims, can make the different variations on form and the details.
Claims (20)
1, a kind of laser scanning device comprises:
Apparatus main body;
Polygonal rotating mirror, its be installed in the described apparatus main body rotatably and deflection from the light of light source projects;
The lid member, it is installed in the apparatus main body to cover described polygonal rotating mirror, and described lid member has slit that is used for transmitted light and the ostium that is used for air flow, and air-flow is around described polygonal rotating mirror high speed rotating and decline; And
The control of dust member, its be used for filtering since described air-flow cause pass through the dust that described ostium flows into described lid member.
2, according to the laser scanning device of claim 1, wherein
Described lid member has the shape of basic dome, in it without leave top increase to the lower part, described lid member is asymmetric in vertical direction.
3, according to the laser scanning device of claim 2, wherein
In the lower end of described lid member at least one connection rib is set, is used for being connected with the basal surface of described apparatus main body.
4, according to the laser scanning device of claim 3, wherein
Circuit board is connected to the basal surface of described apparatus main body, makes the driving motor of described polygonal rotating mirror rotation with control.
5, according to the laser scanning device of claim 4, wherein
First step part in described lid member lower end forms the gap between the basal surface of described lid member and described apparatus main body.
6, according to the laser scanning device of claim 5, wherein
Second step part in described lid member lower end forms the gap between described lid member and described circuit board.
7, according to the laser scanning device of claim 6, wherein
Described second step part is corresponding to the bight of described circuit board.
8, according to the laser scanning device of claim 1, wherein
The seat part of described ostium is held described control of dust member along the periphery of described seat part.
9, according to the laser scanning device of claim 1, wherein
Described control of dust member is made by porous mass.
10, a kind of laser scanning device comprises:
Apparatus main body;
Polygonal rotating mirror, its be installed in the described apparatus main body rotatably and deflection from the light of light source projects;
The lid member, it is installed in the apparatus main body to cover described polygonal rotating mirror, and described lid member has slit that is used for transmitted light and the ostium that is used for air flow, and air-flow is around described polygonal rotating mirror high speed rotating and decline; And
The unit that is in the light, it is operated by the air-flow that produces in described lid member, opens and closes described slit thus.
11, according to the laser scanning device of claim 10, the wherein said unit that is in the light comprises:
Be arranged at the baffle plate in the projected path of light; With
Turning axle, described turning axle are connected to described baffle plate and are hinged to described lid member at least one end of described turning axle.
12, according to the laser scanning device of claim 11, wherein
Described lid member has the shape of basic dome, in it without leave top increase to the lower part, described lid member is asymmetric in vertical direction.
13, according to the laser scanning device of claim 12, wherein
In the lower end of described lid member at least one connection rib is set, is used for being connected with the basal surface of described apparatus main body.
14, according to the laser scanning device of claim 13, wherein
Circuit board is connected to the basal surface of described apparatus main body, makes the driving motor of described polygonal rotating mirror rotation with control.
15, according to the laser scanning device of claim 14, wherein
First step part in described lid member lower end forms the gap between the basal surface of described lid member and described apparatus main body.
16, according to the laser scanning device of claim 15, wherein
Second step part in described lid member lower end forms the gap between described lid member and described circuit board.
17, according to the laser scanning device of claim 16, wherein
Described second step part is corresponding to the bight of described circuit board.
18, according to the laser scanning device of claim 10, wherein
The control of dust member filters by described ostium and flows into the dust that comprises in the air in the described lid member.
19, according to the laser scanning device of claim 18, wherein
The seat part of described ostium is held described control of dust member along the periphery of described seat part.
20, according to the laser scanning device of claim 18, wherein
Described control of dust member is made by porous mass.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050051822A KR100707275B1 (en) | 2005-06-16 | 2005-06-16 | A laser scanning apparatus |
| KR51822/05 | 2005-06-16 | ||
| KR75440/05 | 2005-08-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1881005A true CN1881005A (en) | 2006-12-20 |
| CN100501497C CN100501497C (en) | 2009-06-17 |
Family
ID=37519261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100925972A Expired - Fee Related CN100501497C (en) | 2005-06-16 | 2006-06-16 | Laser scanning device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100707275B1 (en) |
| CN (1) | CN100501497C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410726C (en) * | 2005-09-13 | 2008-08-13 | 佳能株式会社 | Optical scanning apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0572495A (en) * | 1991-09-17 | 1993-03-26 | Hitachi Ltd | Laser beam printer |
| JPH11183836A (en) | 1997-12-24 | 1999-07-09 | Canon Inc | Optical scanner |
| JPH11264949A (en) | 1998-03-16 | 1999-09-28 | Canon Inc | Optical deflector |
| JPH11264950A (en) | 1998-03-16 | 1999-09-28 | Canon Inc | Optical deflector |
-
2005
- 2005-06-16 KR KR1020050051822A patent/KR100707275B1/en active IP Right Grant
-
2006
- 2006-06-16 CN CNB2006100925972A patent/CN100501497C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410726C (en) * | 2005-09-13 | 2008-08-13 | 佳能株式会社 | Optical scanning apparatus |
| US8199391B2 (en) | 2005-09-13 | 2012-06-12 | Canon Kabushiki Kaisha | Optical scanning apparatus having an air path for airflow generated by a rotating mirror |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100707275B1 (en) | 2007-04-16 |
| CN100501497C (en) | 2009-06-17 |
| KR20060131396A (en) | 2006-12-20 |
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