CN112506017A - Photosensitive drum surface charge erasing structure - Google Patents
Photosensitive drum surface charge erasing structure Download PDFInfo
- Publication number
- CN112506017A CN112506017A CN202011412006.1A CN202011412006A CN112506017A CN 112506017 A CN112506017 A CN 112506017A CN 202011412006 A CN202011412006 A CN 202011412006A CN 112506017 A CN112506017 A CN 112506017A
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- CN
- China
- Prior art keywords
- light
- strip
- light guide
- guide strip
- plane
- 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.)
- Pending
Links
- 230000007935 neutral effect Effects 0.000 claims abstract description 6
- 235000009537 plain noodles Nutrition 0.000 claims description 15
- 206010070834 Sensitisation Diseases 0.000 claims description 10
- 230000008313 sensitization Effects 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 4
- 238000007648 laser printing Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 238000009434 installation Methods 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002834 transmittance Methods 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
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/06—Eliminating residual charges from a reusable imaging member
- G03G21/08—Eliminating residual charges from a reusable imaging member using optical radiation
Landscapes
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Abstract
The invention relates to the technical field of laser printing, in particular to an erasing structure of surface charges of a photosensitive drum for a laser printer, which comprises a cylindrical light guide strip, wherein one end of the light guide strip is provided with a light inlet surface, one side of the light guide strip is provided with a planar reflecting surface, the other side of the light guide strip is a light outlet surface opposite to the reflecting surface, the reflecting surface is provided with a plurality of grooves, a light source is emitted into the light guide strip from the light inlet surface, is reflected by the grooves on the reflecting surface and is emitted from the light outlet surface to erase residual charges on the surface of the photosensitive drum, so that the surface of the photosensitive drum is neutral.
Description
Technical Field
The invention relates to the technical field of laser printing, in particular to an erasing structure of surface charges of a photosensitive drum for a laser printer.
Background
The laser phototypesetting technology of the laser printer which is out of date at the end of the 80 s is popular in the middle of the 90 s. It is a print output device that combines laser scanning technology with electrophotographic technology. The basic working principle is that the binary data information transmitted from computer is converted into video signal by video controller, then the video signal is converted into laser driving signal by video interface/control system, then the laser scanning system generates laser beam with character information, finally the electronic photographic system makes the laser beam image and transfer it onto paper. Compared with other printing equipment, the laser printer has the advantages of high printing speed, high imaging quality and the like.
The structure of the existing laser printer is mostly assembled by the following components: the device comprises a photosensitive drum, a cleaning rubber scraper, an erasing mechanism, a main corona, a writing mechanism, a developing assembly, a transmission corona assembly, a feeding guide assembly and a discharging guide assembly, wherein the erasing mechanism is used for removing residual charges on the photosensitive drum to enable the surface of the photosensitive drum to be neutral.
However, most of the erasing mechanisms on the market are long-strip cylinders, the light source of the erasing mechanism generally adopts light emitting diodes, the light emitted by the light emitting diodes is point light, and the area and distance of the point light can be very limited, so when the light emitting diodes are used for erasing residual charges, enough illumination range can be provided by using a plurality of light emitting diodes, and the use of a plurality of light emitting diodes not only increases the cost of the charge removal structure, but also occupies a lot of space. The erasing effect on the residual charges is general and cannot meet the market demand.
Disclosure of Invention
In order to overcome the technical defects, the invention aims to provide the charge erasing structure on the surface of the photosensitive drum, which has the advantages of simple structure, convenience in installation and use, uniform illumination, strong reflection effect and good charge removing effect and can meet the market demand.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a structure is erased to sensitization drum surface charge, includes cylindrical leaded light strip, the one end of leaded light strip is equipped with into plain noodles, one side of leaded light strip is equipped with the plane formula plane of reflection, the opposite side of leaded light strip is the play plain noodles relative with the plane of reflection, be equipped with a plurality of recesses on the plane of reflection, the light source is followed the income plain noodles jets into in the leaded light strip, the warp in the plane of reflection a plurality of the recess reflects and follows the play plain noodles jets out and erases the surperficial residual charge of sensitization drum, makes sensitization drum surface be neutral.
Furthermore, the grooves are pyramid-shaped grooves with the same volume and size.
Furthermore, the other end of the light guide strip is provided with a positioning lug for fixing.
Furthermore, still be fixed on the leaded light strip and be equipped with the several and be used for the installation lug.
Furthermore, a plurality of installation convex ribs corresponding to the installation convex blocks are fixedly arranged on the light guide strip.
Furthermore, the light emitting surface is an arc-shaped light emitting surface.
Further, the light guide strip is an organic glass type light guide strip.
In conclusion, the invention has the advantages that: it includes cylindrical leaded light strip, the one end of leaded light strip is equipped with into the plain noodles, one side of leaded light strip is equipped with planar plane of reflection, the opposite side of leaded light strip is the play plain noodles relative with the plane of reflection, be equipped with a plurality of recesses on the plane of reflection, the light source jets into the leaded light strip from the income plain noodles in, reflect and jet out from the play plain noodles through a plurality of recesses on the plane of reflection and erase the surperficial residual electric charge of sensitization drum, it is neutral to make the sensitization drum surface, a plurality of recesses are arranged at light propagation direction interval respectively, thereby it is even to reach the light-emitting distribution on play plain noodles, and the angle in a plurality of recesses is unanimous, the mold processing preparation of being convenient for, the steam generator is simple in structure, installation convenient to use.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the groove of the present invention;
FIG. 3 is a diagram illustrating the light-emitting effect of the light-emitting surface according to the present invention;
FIG. 4 is a comparison table of light conductivity data of the embodiment of the present invention and the prior art;
the light guide module comprises a light guide strip 1, a light guide strip 2, a reflecting surface 3, a groove 31, a triangle 32, a first side line 33, a second side line 34, a third side line 4, an installation lug 5, a positioning lug 6, an installation convex rib 7, a light incident surface 8 and a light emergent surface.
Detailed Description
The invention will be further described with reference to the accompanying drawings and the detailed description:
example (b):
as shown in fig. 1, fig. 2 and fig. 3, a structure is erased to sensitization drum surface charge, including cylindrical light guide strip 1, the one end of light guide strip 1 is equipped with into plain noodles 7, one side of light guide strip 1 is equipped with planar plane of reflection 2, the opposite side of light guide strip 1 is for going out plain noodles 8 relative with plane of reflection 2, be equipped with a plurality of recesses 3 on the plane of reflection 2, the light source is followed it jets into to go into plain noodles 7 in the light guide strip 1, the warp it is a plurality of on the plane of reflection 2 recess 3 reflects and follows it jets out the residual charge on sensitization drum surface and erases, makes sensitization drum surface be neutral. A plurality of grooves are respectively arranged at intervals in the light propagation direction, so that the effect of uniform light emission distribution of the light emitting surface is achieved, and the erasing effect on residual charges on the surface of the photosensitive drum is improved.
The grooves 3 are pyramid-shaped grooves with the same volume and size. The two sides of the pyramid-shaped groove 3 are triangles 31 with the same size, each triangle 31 is composed of a first side line 32, a second side line 33 and a third side line 34, wherein an included angle a1 is formed between the first side line 32 and the second side line 33, the angle range of a1 is 40-50 degrees, an included angle b2 is formed between the first side line 32 and the third side line 34, the angle range of b2 is 45-55 degrees, an included angle c1 is formed between the second side line 33 and the third side line 34, the angle range of c1 is 75-95 degrees, and the angles in the grooves are consistent, so that the processing and the manufacturing of a die are facilitated, and the manufacturing cost is saved.
And a positioning lug 5 for fixing is arranged at the other end of the light guide strip 1. The structure is convenient to install and fix.
Wherein, still be fixed on the leaded light strip 1 and be equipped with the installation lug 4 that the several is used for the installation. The structure is convenient to install and fix.
The light guide strip 1 is also fixedly provided with a plurality of mounting convex ribs 6 corresponding to the mounting convex blocks 4. The structure is convenient to install and fix.
The light emitting surface 8 is an arc-shaped light emitting surface. The light emitting from the light emitting surface 8 is uniformly distributed, and the erasing effect on the residual charges on the surface of the photosensitive drum is improved.
Wherein, leaded light strip 1 is organic glass formula leaded light strip. The light guide strip 1 is made of organic glass, so that the light transmittance is improved, and the residual charges on the surface of the photosensitive drum can be erased conveniently.
As shown in FIG. 4, the light guide performance of the prior art, i.e. the non-groove erasing mechanism, is compared with that of the present embodiment, and it can be seen from the comparison data that the technical scheme is provided with a plurality of pyramid-shaped grooves 3 on the light guide strip 1, the light guide performance is stronger, and the stronger the light guide performance is, the better the erasing effect of the residual charges on the surface of the photosensitive drum is.
In conclusion, the LED lamp has the advantages of simple structure, convenience in installation and use, uniform illumination, strong reflection effect and good charge removal effect, and can meet market requirements.
Various other changes and modifications to the above embodiments and concepts will become apparent to those skilled in the art, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (7)
1. A photosensitive drum surface charge erasing structure is characterized in that: including cylindrical leaded light strip (1), the one end of leaded light strip (1) is equipped with income plain noodles (7), one side of leaded light strip (1) is equipped with plane formula plane of reflection (2), the opposite side of leaded light strip (1) is for going out plain noodles (8) relative with plane of reflection (2), be equipped with a plurality of recesses (3) on plane of reflection (2), the light source is followed income in leaded light strip (1), warp a plurality of on plane of reflection (2) recess (3) are reflected and are followed it jets out and erases the remaining charge on sensitization drum surface to go out plain noodles (8), makes the sensitization drum surface be neutral.
2. The structure of claim 1, wherein: the grooves (3) are pyramid-shaped grooves with the same volume and size.
3. The structure of claim 1, wherein: the other end of the light guide strip (1) is provided with a positioning bump (5) for fixing.
4. A photosensitive drum surface charge erasure structure according to claim 3, wherein: the light guide strip (1) is also fixedly provided with a plurality of mounting lugs (4) for mounting.
5. The structure of claim 4, wherein: the light guide strip (1) is further fixedly provided with a plurality of mounting convex ribs (6) corresponding to the mounting convex blocks (4).
6. The structure of claim 1, wherein: the light emitting surface (8) is an arc-shaped light emitting surface.
7. The structure of claim 1, wherein: the light guide strip (1) is an organic glass type light guide strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011412006.1A CN112506017A (en) | 2020-12-04 | 2020-12-04 | Photosensitive drum surface charge erasing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011412006.1A CN112506017A (en) | 2020-12-04 | 2020-12-04 | Photosensitive drum surface charge erasing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112506017A true CN112506017A (en) | 2021-03-16 |
Family
ID=74970367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011412006.1A Pending CN112506017A (en) | 2020-12-04 | 2020-12-04 | Photosensitive drum surface charge erasing structure |
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| Country | Link |
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| CN (1) | CN112506017A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1360234A (en) * | 2000-12-21 | 2002-07-24 | 佳能株式会社 | Image forming device and processing cassette mounted on same removably |
| CN1488966A (en) * | 2002-08-07 | 2004-04-14 | ���ǵ�����ʽ���� | Light-guide and imaging apparatus using same |
| CN1752871A (en) * | 2004-09-22 | 2006-03-29 | 夏普株式会社 | Optical discharge apparatus and image forming apparatus containing the same |
| CN105388727A (en) * | 2014-08-28 | 2016-03-09 | 京瓷办公信息系统株式会社 | image forming apparatus |
| CN105404123A (en) * | 2014-09-10 | 2016-03-16 | 佳能株式会社 | Processing cartridge |
| CN107315333A (en) * | 2016-04-27 | 2017-11-03 | 京瓷办公信息系统株式会社 | Neutralizer and image processing system |
| CN107422622A (en) * | 2016-05-24 | 2017-12-01 | 京瓷办公信息系统株式会社 | Electric charge removal device and the image processing system for possessing electric charge removal device |
-
2020
- 2020-12-04 CN CN202011412006.1A patent/CN112506017A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1360234A (en) * | 2000-12-21 | 2002-07-24 | 佳能株式会社 | Image forming device and processing cassette mounted on same removably |
| CN1488966A (en) * | 2002-08-07 | 2004-04-14 | ���ǵ�����ʽ���� | Light-guide and imaging apparatus using same |
| CN1752871A (en) * | 2004-09-22 | 2006-03-29 | 夏普株式会社 | Optical discharge apparatus and image forming apparatus containing the same |
| CN105388727A (en) * | 2014-08-28 | 2016-03-09 | 京瓷办公信息系统株式会社 | image forming apparatus |
| CN105404123A (en) * | 2014-09-10 | 2016-03-16 | 佳能株式会社 | Processing cartridge |
| CN107315333A (en) * | 2016-04-27 | 2017-11-03 | 京瓷办公信息系统株式会社 | Neutralizer and image processing system |
| CN111061134A (en) * | 2016-04-27 | 2020-04-24 | 京瓷办公信息系统株式会社 | Static eliminator and image forming apparatus |
| CN107422622A (en) * | 2016-05-24 | 2017-12-01 | 京瓷办公信息系统株式会社 | Electric charge removal device and the image processing system for possessing electric charge removal device |
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Application publication date: 20210316 |