WO2018064871A1 - Imaging device for color laser printer - Google Patents
Imaging device for color laser printer Download PDFInfo
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- WO2018064871A1 WO2018064871A1 PCT/CN2017/000605 CN2017000605W WO2018064871A1 WO 2018064871 A1 WO2018064871 A1 WO 2018064871A1 CN 2017000605 W CN2017000605 W CN 2017000605W WO 2018064871 A1 WO2018064871 A1 WO 2018064871A1
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- toner
- transparent tube
- laser
- toner cartridge
- photosensitive drum
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- 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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0105—Details of unit
- G03G15/011—Details of unit for exposing
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- 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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0142—Structure of complete machines
- G03G15/0178—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image
Definitions
- the present invention relates to a color laser printer, and more particularly to a color laser printing imaging apparatus.
- the imaging principle of a color laser printer is the same as that of a black-and-white laser printer. It uses laser scanning to form a charge latent image on the toner cartridge, then adsorbs the toner, and then transfers the toner to the printing paper, except that the black and white laser printer only has A black toner, and a color laser printer uses four colors of toner.
- a mainstream color laser printer has a structure including four toner cartridges and four photosensitive drums integrated with the toner cartridge.
- the four toner cartridges are equipped with four colors based on CMYK color and arranged in a row, and each toner cartridge is correspondingly arranged.
- Under the photosensitive drum is a transfer transfer tape. After each color is processed, the photosensitive drum is transferred to the transfer tape for color registration, and then transferred to the printing paper.
- the heating is fixed, and then the toner cartridge is cleaned and then processed for the next cycle; the above-mentioned structure of the Brothers printer is often used, and the structure often requires color correction on the transfer tape after multiple printings, and the structure is bulky.
- the other main structure consists of four toner cartridges and one large photosensitive drum.
- Four toner cartridges with four CMYK-based colors are arranged vertically on one side of the drum. Each cartridge handles one. The color is exposed and developed by the photosensitive drum, and the transfer tape is colored under the photosensitive drum. After each color is processed, the photosensitive drum is transferred to the transfer tape for color registration. Then, it is transferred to the printing paper, fixed by heating, and then the toner cartridge is cleaned and then processed for the next cycle.
- the above-mentioned structure of the HP printer is mostly used, and the structure is slightly smaller.
- the present invention provides a color laser printing imaging apparatus which can greatly improve the printing speed of a color laser printer.
- a photosensitive drum comprising a conductive transparent tube capable of rotating, the outer surface of the conductive transparent tube is coated with a light guide coating, and the conductive transparent tube is grounded through the wire.
- the toner cartridge is provided with four surrounding drums, including a first toner cartridge, a second toner cartridge, a third toner cartridge, and a fourth toner cartridge.
- the first toner cartridge can process the toner of the corresponding color and then transfer it to the first laser generator for scanning. After exposure, on the electrostatic latent image formed on the surface of the photosensitive drum; the electrostatic latent image is rotated to the next position with the photosensitive drum and then scanned by the second laser generator for the second time After exposure, the second toner cartridge can process the toner of the corresponding color and then transfer it to the electrostatic latent image after the second scanning exposure; the electrostatic latent image is rotated to the next position with the photosensitive drum and then subjected to the third laser generator.
- the third toner cartridge can process the toner of the corresponding color and transfer it to the electrostatic latent image after three scanning exposures; the electrostatic latent image continues to rotate to the next position with the photosensitive drum and then passes through the fourth laser generator. Performing the fourth scanning exposure, the fourth toner cartridge can process the toner of the corresponding color and transfer it to the electrostatic latent image after four scanning exposures;
- a charging structure for charging the photosensitive drum is
- the conductive transparent tube is made of a mixed conductive agent in an organic glass.
- the conductive transparent tube comprises a transparent tube and a transparent transparent coating coated on the outer layer of the transparent tube.
- the toner cartridge includes a developing roller, a powder magazine, and a doctor blade for controlling the thickness of the toner.
- the invention has the beneficial effects that: when the imaging device is mainly rotated by the photosensitive drum, the laser light emitted by one or more laser generators built in according to the need is scanned and exposed at the same position through the conductive transparent tube, and after each exposure, the exposure is performed. Part of it will absorb the toner of a certain color treated by its corresponding toner cartridge, so that the color registration can be directly performed on the photosensitive drum, and the color is directly transferred to the printing paper after the color registration is completed, so that not only the process is streamlined, but also all the colors are not used for the color registration.
- the color should be transferred to the transfer tape separately to complete; it also avoids the problem that the error will be corrected after the transfer tape is applied multiple times, which greatly shortens the time required for color registration and greatly improves the printing speed. .
- Figure 1 is a schematic view of the structure of the present invention.
- the present invention discloses a color laser printing image forming apparatus comprising a photosensitive drum comprising a conductive transparent tube 1 for rotation of a shaft, and an outer surface of the conductive transparent tube 1 is covered with a layer of light-guide coating 2, and
- the conductive transparent tube 1 is grounded through a wire 4, and the conductive transparent tube 1 is provided with four laser generators 5, the laser generator 5 does not rotate with the conductive transparent tube 1, and the laser emission angle of each laser generator 5 is different, and the The laser can scan the photoconductive coating 2 through the conductive transparent tube 1 to expose the scanning portion to form an electrostatic latent image, and four toner cartridges are arranged around the photosensitive drum, and each of the toner cartridges corresponds to a laser generator 5, that is, the laser generator 5 After scanning and exposing, the toner on the corresponding toner cartridge will be adsorbed.
- the laser generator of the structure can also adopt other light sources capable of exposing the photoconductive coating, such as LED diodes, etc.
- the toner cartridge includes a developing roller 7, a powder magazine 8, and a doctor blade 9 for controlling the thickness of the toner, and the toner is negatively charged when it is scraped, and the above structure is a conventional structure and thus is not Detailed.
- the charging structure is first, that is, the charging roller 11 is opposite to the photosensitive drum.
- Charging with about -600V, that is, the surface of the photosensitive drum is negatively charged, and then the first laser generator 51 emits a certain intensity of laser light through the conductive transparent tube 1 to scan a circular shape on the photoconductive coating 2 and to ensure the circle
- the exposure intensity of the shaped region is 10%.
- the portion of the light-guide coating 2 that is illuminated becomes a conductor connected to the ground line through the conductive transparent tube 1, and a part of the negative charge flows away, so that the voltage value in the region is also reduced by 10%.
- the photosensitive drum Left and right, that is, 540, forming an electrostatic latent image area of -540 V, and then the photosensitive drum is rotated to a position corresponding to the first toner cartridge 511, the negatively charged colored toner on the first toner cartridge 511 is pushed to the pressure difference
- the photosensitive drum continues to rotate to rotate the circular area to the position of the laser light emitted by the second laser generator 52 for the second exposure, the exposure intensity is 10%, and a part of the negative charge flows away, the area
- the voltage value is further reduced by about 10%, that is, 480, and the voltage of the electrostatic latent image area is -480 V.
- the negatively charged tape on the second toner cartridge 512 Color toner is pushed by the pressure difference
- the negatively charged colored toner on the third toner cartridge 513 and the negatively charged colored toner on the fourth toner cartridge 514 are sequentially adsorbed to the third laser generator 53 and
- the four laser generators 54 sequentially expose the electrostatic latent image areas, so that the four colors are mixed in the electrostatic latent image area, thereby completing the color registration, and finally transferring onto the printing paper 6.
- the developing roller 7 and the photosensitive drum in the toner cartridge in the above structure are preferably of a non-contact type structure, and of course, a contact type developing structure is also selectable, but the contact type developing structure has some drawbacks: in the process of contact, the developing roller 7 is easy to The toner of other colors on the drum is brought back to its own powder bin to cause color mixing; and the pattern formed by the toner adsorbed by the electrostatic latent image area is easily smeared during the contact process.
- the control chip can be arbitrarily controlled according to the color that the pattern needs to be adjusted.
- One or more of the four laser generators 5 operate so that the corresponding toner cartridges also operate to set the desired color, and the control chip can control the intensity of the laser light emitted by each of the laser generators 5 to control the exposed area.
- the exposure intensity thereby controlling the pressure difference between the electrostatic latent image area and the toner on the toner cartridge, thereby controlling the amount of toner of a certain color adsorbed on the electrostatic latent image area.
- the conductive transparent tube 1 can be made of two structures: one structure is made by mixing a conductive agent in the machine glass, and the organic glass is methyl methacrylate, so that the transparent transparent tube 1 can be ensured.
- the light can be electrically conductive; the other structure is formed by a transparent transparent coating coated with a transparent tube and a transparent tube, and the transparent tube can be made of ordinary glass or transparent organic material, and has a conductive function.
- the conductive transparent coating is made of indium tin oxide, and the above structure is for ensuring that the laser light emitted from the laser generator 5 inside the conductive transparent tube 1 can be transmitted to the light guide coating 2 Exposure, after exposure of the photoconductive coating 2, leads to the negative charge of the exposure to form an electrostatic latent image.
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- General Physics & Mathematics (AREA)
- Color Electrophotography (AREA)
Abstract
An imaging device for a color laser printer, characterized by comprising: a photosensitive drum which comprises a rotatable conductive transparent tube (1), the conductive transparent tube (1) being coated, at the outer surface, with a layer of light-guiding coating (2), and the conductive transparent tube (1) being grounded by means of a wire (4); four laser generators (5), being located in the conductive transparent tube (1), the laser emission angle of each laser generator (5) being different, and the laser being able to scan, by means of penetrating the conductive transparent tube (1), the light-guiding coating (2), and expose the scanned portion to form an electrostatic latent image; a cleaning scraper (10), being used to clean residual toner on the photosensitive drum; and four toner cartridges, being arranged around the photosensitive drum, each toner cartridge processing one corresponding color toner and transporting same to the electrostatic latent image that is scanned and exposed by the corresponding laser generator (5).
Description
本发明涉及一种彩色激光打印机，特别是一种彩色激光打印成像装置。The present invention relates to a color laser printer, and more particularly to a color laser printing imaging apparatus.
彩色激光打印机的成像原理和黑白激光打印机是一样的，都是利用激光扫描，在硒鼓上形成电荷潜影，然后吸附墨粉，再将墨粉转印到打印纸上，只不过黑白激光打印机只有一种黑色墨粉，而彩色激光打印机要使用四种颜色的墨粉。The imaging principle of a color laser printer is the same as that of a black-and-white laser printer. It uses laser scanning to form a charge latent image on the toner cartridge, then adsorbs the toner, and then transfers the toner to the printing paper, except that the black and white laser printer only has A black toner, and a color laser printer uses four colors of toner.
目前比较主流的彩色激光打印机的一种结构为：包括四个硒鼓及四个与硒鼓装配一体的感光鼓，四个硒鼓装有四种基于CMYK色系的颜色且排成一列，每个硒鼓相应处理一种颜色并通过感光鼓曝光显影，感光鼓下方为套色的转印胶带，每个处理一种颜色后感光鼓再转移到转印胶带上进行套色，然后再转印到打印纸上，经加热固着，然后清洁硒鼓再进行下一个循环的处理；上述结构兄弟公司的打印机多在采用，该结构经常需要在多次打印后转印胶带上进行套色校正，该结构体积大。At present, a mainstream color laser printer has a structure including four toner cartridges and four photosensitive drums integrated with the toner cartridge. The four toner cartridges are equipped with four colors based on CMYK color and arranged in a row, and each toner cartridge is correspondingly arranged. Handle a color and develop it through the photosensitive drum. Under the photosensitive drum is a transfer transfer tape. After each color is processed, the photosensitive drum is transferred to the transfer tape for color registration, and then transferred to the printing paper. The heating is fixed, and then the toner cartridge is cleaned and then processed for the next cycle; the above-mentioned structure of the Brothers printer is often used, and the structure often requires color correction on the transfer tape after multiple printings, and the structure is bulky.
而另一种主要结构为：包括四个硒鼓及一个较大的感光鼓，四个装有四种基于CMYK色系的颜色的硒鼓竖直排列在感光鼓的一侧，每个硒鼓处理一种颜色并通过感光鼓曝光显影，感光鼓下方为套色的转印胶带，每个处理一种颜色后感光鼓再转移到转印胶带上进行套色，
然后再转印到打印纸上，经加热固着，然后清洁硒鼓再进行下一个循环的处理，上述结构惠普公司的打印机多在采用，该结构体积稍小。The other main structure consists of four toner cartridges and one large photosensitive drum. Four toner cartridges with four CMYK-based colors are arranged vertically on one side of the drum. Each cartridge handles one. The color is exposed and developed by the photosensitive drum, and the transfer tape is colored under the photosensitive drum. After each color is processed, the photosensitive drum is transferred to the transfer tape for color registration.
Then, it is transferred to the printing paper, fixed by heating, and then the toner cartridge is cleaned and then processed for the next cycle. The above-mentioned structure of the HP printer is mostly used, and the structure is slightly smaller.
但是上述结构均存在打印速度慢的缺点：一是因为每次打印都需要四种颜色的分别处理及转印，因而拖慢了打印速度；二是在多次打印后，打印机又需要重新进行套色校正，因而打印速度更慢，因而针对上述问题本发明人设计了一种新的彩色打光打印成像装置.However, the above structures all have the disadvantages of slow printing speed: first, because each printing requires four colors of separate processing and transfer, thus slowing down the printing speed; second, after multiple printings, the printer needs to re-color the printing. Correction, and thus printing speed is slower, so the inventor designed a new color lighting printing imaging device for the above problems.
发明内容Summary of the invention
为了克服现有技术的不足，本发明提供一种彩色激光打印成像装置，可以大大提高彩色激光打印机的打印速度。In order to overcome the deficiencies of the prior art, the present invention provides a color laser printing imaging apparatus which can greatly improve the printing speed of a color laser printer.
本发明解决其技术问题所采用的技术方案是：The technical solution adopted by the present invention to solve the technical problem thereof is:
一种彩色激光打印成像装置，其特征在于：包括A color laser printing imaging device characterized by comprising
感光鼓，该感光鼓包括能够转动的导电透明管，导电透明管外表面覆有光导涂层，且导电透明管通过导线接地，a photosensitive drum comprising a conductive transparent tube capable of rotating, the outer surface of the conductive transparent tube is coated with a light guide coating, and the conductive transparent tube is grounded through the wire.
激光发生器，设有四个，包括第一激光发生器、第二激光发生器、第三激光发生器和第四激光发生器，位于所述导电透明管内，每个激光发生器的激光发射角度不同，且该激光能够透过导电透明管扫描光导涂层，a laser generator, comprising four, comprising a first laser generator, a second laser generator, a third laser generator and a fourth laser generator, located in the conductive transparent tube, the laser emission angle of each laser generator Different, and the laser can scan the photoconductive coating through the conductive transparent tube.
清洁刮刀，用于清洁感光鼓上残余碳粉，a cleaning blade for cleaning residual toner on the drum
硒鼓，设有四个且环绕感光鼓排布，包括第一硒鼓、第二硒鼓、第三硒鼓和第四硒鼓，第一硒鼓能够将相应颜色的碳粉处理后转送到第一激光发生器扫描曝光后在感光鼓表面形成的静电潜像上；该静电潜像随感光鼓转动到下一位置再经第二激光发生器进行第二次扫描
曝光，第二硒鼓能够将相应颜色的碳粉处理后转送到经二次扫描曝光后的静电潜像上；该静电潜像随感光鼓再转动到下一位置再经第三激光发生器进行第三次扫描曝光，第三硒鼓能够将相应颜色的碳粉处理后转送到经三次扫描曝光后的静电潜像上；该静电潜像继续随感光鼓转动到下一位置再经第四激光发生器进行第四次扫描曝光，第四硒鼓能够将相应颜色的碳粉处理后转送到经四次扫描曝光后的静电潜像上；The toner cartridge is provided with four surrounding drums, including a first toner cartridge, a second toner cartridge, a third toner cartridge, and a fourth toner cartridge. The first toner cartridge can process the toner of the corresponding color and then transfer it to the first laser generator for scanning. After exposure, on the electrostatic latent image formed on the surface of the photosensitive drum; the electrostatic latent image is rotated to the next position with the photosensitive drum and then scanned by the second laser generator for the second time
After exposure, the second toner cartridge can process the toner of the corresponding color and then transfer it to the electrostatic latent image after the second scanning exposure; the electrostatic latent image is rotated to the next position with the photosensitive drum and then subjected to the third laser generator. After three scanning exposures, the third toner cartridge can process the toner of the corresponding color and transfer it to the electrostatic latent image after three scanning exposures; the electrostatic latent image continues to rotate to the next position with the photosensitive drum and then passes through the fourth laser generator. Performing the fourth scanning exposure, the fourth toner cartridge can process the toner of the corresponding color and transfer it to the electrostatic latent image after four scanning exposures;
充电结构，用于给感光鼓充电。A charging structure for charging the photosensitive drum.
所述导电透明管为有机玻璃内混合导电剂制成。The conductive transparent tube is made of a mixed conductive agent in an organic glass.
所述导电透明管包括透明管及透明管外层覆有有的导电透明涂层。The conductive transparent tube comprises a transparent tube and a transparent transparent coating coated on the outer layer of the transparent tube.
所述硒鼓包括显影辊、粉仓及用于控制碳粉厚度的刮粉刀。The toner cartridge includes a developing roller, a powder magazine, and a doctor blade for controlling the thickness of the toner.
本发明的有益效果是：本成像装置主要通过感光鼓转动时，根据需要内置的一个或多个激光发生器发射的激光透过导电透明管先后在同一位置扫描曝光，在每一次曝光后，曝光部分会吸附与其相应的硒鼓处理的某一颜色的碳粉，从而直接在感光鼓上实现套色，套色完成后直接再转印到打印纸上，因而不仅流程精简，而且套色时不用所有的每种颜色均要分别转印到转印胶带上才能完成；也避免了通过转印胶带套色多次后会发生误差而需要校正的问题，从而大大缩短了套色所需的时间，极大地提高了打印速度。The invention has the beneficial effects that: when the imaging device is mainly rotated by the photosensitive drum, the laser light emitted by one or more laser generators built in according to the need is scanned and exposed at the same position through the conductive transparent tube, and after each exposure, the exposure is performed. Part of it will absorb the toner of a certain color treated by its corresponding toner cartridge, so that the color registration can be directly performed on the photosensitive drum, and the color is directly transferred to the printing paper after the color registration is completed, so that not only the process is streamlined, but also all the colors are not used for the color registration. The color should be transferred to the transfer tape separately to complete; it also avoids the problem that the error will be corrected after the transfer tape is applied multiple times, which greatly shortens the time required for color registration and greatly improves the printing speed. .
下面结合附图和实施例对本发明进一步说明。
The invention will now be further described with reference to the drawings and embodiments.
图1是本发明的结构示意图。Figure 1 is a schematic view of the structure of the present invention.
参照图1，本发明公开了一种彩色激光打印成像装置，包括感光鼓，该感光鼓包括用作轴心转动的导电透明管1，导电透明管1外表面覆有一层光导涂层2，且导电透明管1通过导线4接地，所述导电透明管1内设有四个激光发生器5，激光发生器5不随导电透明管1转动且每个激光发生器5的激光发射角度不同，且该激光能够透过导电透明管1扫描光导涂层2从而将扫描部分曝光形成静电潜像，感光鼓周围环绕排布有四个硒鼓，每个硒鼓对应一个激光发生器5，即经该激光发生器5扫描曝光后的部分会吸附相应硒鼓上的碳粉，在每一次感光鼓转动过程中，不一定四个激光发生器5及其对应的硒鼓都要工作，而是根据图案颜色的需要，由程序控制任意一个或几个激光发生器5及其对应的硒鼓工作，从而在感光鼓的静电潜像上调配出需要的颜色，即在感光鼓上直接完成套色的工作，然后转印到打印纸6上，感光鼓上残余的碳粉通过清洁刮刀10清洁，准备下一循环，当然本结构的激光发生器也可采用其它能够使光导涂层曝光的光源，如LED二级管等。Referring to Figure 1, the present invention discloses a color laser printing image forming apparatus comprising a photosensitive drum comprising a conductive transparent tube 1 for rotation of a shaft, and an outer surface of the conductive transparent tube 1 is covered with a layer of light-guide coating 2, and The conductive transparent tube 1 is grounded through a wire 4, and the conductive transparent tube 1 is provided with four laser generators 5, the laser generator 5 does not rotate with the conductive transparent tube 1, and the laser emission angle of each laser generator 5 is different, and the The laser can scan the photoconductive coating 2 through the conductive transparent tube 1 to expose the scanning portion to form an electrostatic latent image, and four toner cartridges are arranged around the photosensitive drum, and each of the toner cartridges corresponds to a laser generator 5, that is, the laser generator 5 After scanning and exposing, the toner on the corresponding toner cartridge will be adsorbed. During each rotation of the photosensitive drum, not necessarily four laser generators 5 and their corresponding toner cartridges will work, but according to the color of the pattern, The program controls any one or several laser generators 5 and their corresponding toner cartridges to work, thereby adjusting the required color on the electrostatic latent image of the photosensitive drum, that is, directly performing color registration on the photosensitive drum Working, then transferring onto the printing paper 6, the residual toner on the photosensitive drum is cleaned by the cleaning blade 10, ready for the next cycle, of course, the laser generator of the structure can also adopt other light sources capable of exposing the photoconductive coating, such as LED diodes, etc.
本实例中，硒鼓包括显影辊7、粉仓8及及用于控制碳粉厚度的刮粉刀9，并且碳粉在被刮擦的时候会带上负电荷，上述结构是常规结构因而具体不详述。In the present example, the toner cartridge includes a developing roller 7, a powder magazine 8, and a doctor blade 9 for controlling the thickness of the toner, and the toner is negatively charged when it is scraped, and the above structure is a conventional structure and thus is not Detailed.
本装置的工作原理简述：比如在一个圆形的图形的套色过程中需要用到四种颜色的混合，那么首先充电结构，即充电辊11对感光鼓
充上大约在-600V的电，即感光鼓表面带负电荷，然后第一激光发生器51发射一定强度的激光透过导电透明管1在光导涂层2上扫描出一个圆形并保证该圆形区域的曝光强度为10％，在此过程中，光导涂层2被照到的部分成为导体通过导电透明管1与接地线连接，部分负电荷流走，从而该区域电压值也降低10％左右，即为为540，形成-540V的静电潜像区，然后感光鼓转动到与第一硒鼓511对应的位置时，第一硒鼓511上带负电荷的带色碳粉通过压差被推到静电潜像区，感光鼓继续转动使该圆形区域转到第二激光发生器52所发射的激光照射的位置进行第二次曝光，曝光强度为10％，再一部分负电荷流走，该区域电压值再降低10％左右，即为480，该静电潜像区电压为-480V，二次曝光后感光鼓转动到与第二硒鼓512对应的位置时，第二硒鼓512上带负电荷的带色碳粉通过压差被推到静电潜像区，同理，第三硒鼓513上带负电荷的带色碳粉和第四硒鼓514上带负电荷的带色碳粉都会被顺序吸附于经第三激光发生器53和第四激光发生器54依次曝光的静电潜像区，从而四种颜色在静电潜像区混合，从而完成套色，最后转印到打印纸6上。Brief description of the working principle of the device: for example, in the process of color registration of a circular pattern, a mixture of four colors is required, then the charging structure is first, that is, the charging roller 11 is opposite to the photosensitive drum.
Charging with about -600V, that is, the surface of the photosensitive drum is negatively charged, and then the first laser generator 51 emits a certain intensity of laser light through the conductive transparent tube 1 to scan a circular shape on the photoconductive coating 2 and to ensure the circle The exposure intensity of the shaped region is 10%. During this process, the portion of the light-guide coating 2 that is illuminated becomes a conductor connected to the ground line through the conductive transparent tube 1, and a part of the negative charge flows away, so that the voltage value in the region is also reduced by 10%. Left and right, that is, 540, forming an electrostatic latent image area of -540 V, and then the photosensitive drum is rotated to a position corresponding to the first toner cartridge 511, the negatively charged colored toner on the first toner cartridge 511 is pushed to the pressure difference In the electrostatic latent image area, the photosensitive drum continues to rotate to rotate the circular area to the position of the laser light emitted by the second laser generator 52 for the second exposure, the exposure intensity is 10%, and a part of the negative charge flows away, the area The voltage value is further reduced by about 10%, that is, 480, and the voltage of the electrostatic latent image area is -480 V. When the photosensitive drum is rotated to a position corresponding to the second toner cartridge 512 after the double exposure, the negatively charged tape on the second toner cartridge 512 Color toner is pushed by the pressure difference To the electrostatic latent image area, similarly, the negatively charged colored toner on the third toner cartridge 513 and the negatively charged colored toner on the fourth toner cartridge 514 are sequentially adsorbed to the third laser generator 53 and The four laser generators 54 sequentially expose the electrostatic latent image areas, so that the four colors are mixed in the electrostatic latent image area, thereby completing the color registration, and finally transferring onto the printing paper 6.
上述结构中硒鼓中的显影辊7与感光鼓优选是非接触式的结构，当然也可选接触式的显影结构，但是接触式的显影结构具有一些缺陷：在接触的过程中，显影辊7容易将感光鼓上其它颜色的碳粉带回自己的粉仓，从而造成混色；而且在接触的过程中易造成静电潜像区吸附的碳粉形成的图形被蹭花。The developing roller 7 and the photosensitive drum in the toner cartridge in the above structure are preferably of a non-contact type structure, and of course, a contact type developing structure is also selectable, but the contact type developing structure has some drawbacks: in the process of contact, the developing roller 7 is easy to The toner of other colors on the drum is brought back to its own powder bin to cause color mixing; and the pattern formed by the toner adsorbed by the electrostatic latent image area is easily smeared during the contact process.
上述过程中，控制芯片可以根据图案需要调配的颜色来任意控制
四个激光发生器5中的一个或多个工作，从而相应的硒鼓也会工作，从而套出需要的颜色，而且控制芯片可以控制每一激光发生器5发射激光的强度，来控制被曝光区域的曝光强度，从而控制静电潜像区与硒鼓上碳粉间的压差，从而控制吸附在静电潜像区上的某一种颜色的碳粉的量。In the above process, the control chip can be arbitrarily controlled according to the color that the pattern needs to be adjusted.
One or more of the four laser generators 5 operate so that the corresponding toner cartridges also operate to set the desired color, and the control chip can control the intensity of the laser light emitted by each of the laser generators 5 to control the exposed area. The exposure intensity, thereby controlling the pressure difference between the electrostatic latent image area and the toner on the toner cartridge, thereby controlling the amount of toner of a certain color adsorbed on the electrostatic latent image area.
在本发明中，导电透明管1可以为两种结构制成：一种结构是通过机玻璃内混合导电剂制成，有机玻璃为甲基丙烯酸甲脂，这样既能保证导电透明管1的透光性又能具有导电性；另一种结构是通过透明管及透明管外层覆有有的导电透明涂层复合而成，透明管可采用普通的玻璃或是透明的有机材料，导电的功能通过导电透明涂层来实现，导电透明涂层为为铟锡氧化物，上述结构都是为了既能保证能够使导电透明管1内部的激光发生器5发出的激光透过而对光导涂层2曝光，又能在光导涂层2曝光后导走曝光的负电荷形成静电潜像。In the present invention, the conductive transparent tube 1 can be made of two structures: one structure is made by mixing a conductive agent in the machine glass, and the organic glass is methyl methacrylate, so that the transparent transparent tube 1 can be ensured. The light can be electrically conductive; the other structure is formed by a transparent transparent coating coated with a transparent tube and a transparent tube, and the transparent tube can be made of ordinary glass or transparent organic material, and has a conductive function. The conductive transparent coating is made of indium tin oxide, and the above structure is for ensuring that the laser light emitted from the laser generator 5 inside the conductive transparent tube 1 can be transmitted to the light guide coating 2 Exposure, after exposure of the photoconductive coating 2, leads to the negative charge of the exposure to form an electrostatic latent image.
以上对本发明实施例所提供的一种彩色激光打印成像装置，进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。
The color laser printing imaging device provided by the embodiment of the present invention is described in detail. The principle and the embodiment of the present invention are described in the following. The description of the above embodiment is only used to help understand the present invention. The method of the invention and its core idea; at the same time, for the person of ordinary skill in the art, according to the idea of the present invention, there are some changes in the specific embodiment and the scope of application. In summary, the content of the specification should not be understood. To limit the invention.
Claims (4)
- 一种彩色激光打印成像装置，其特征在于：包括A color laser printing imaging device characterized by comprising感光鼓，该感光鼓包括能够转动的导电透明管，导电透明管外表面覆有光导涂层，且导电透明管通过导线接地，a photosensitive drum comprising a conductive transparent tube capable of rotating, the outer surface of the conductive transparent tube is coated with a light guide coating, and the conductive transparent tube is grounded through the wire.激光发生器，设有四个，包括第一激光发生器、第二激光发生器、第三激光发生器和第四激光发生器，位于所述导电透明管内，每个激光发生器的激光发射角度不同，且该激光能够透过导电透明管扫描光导涂层，a laser generator, comprising four, comprising a first laser generator, a second laser generator, a third laser generator and a fourth laser generator, located in the conductive transparent tube, the laser emission angle of each laser generator Different, and the laser can scan the photoconductive coating through the conductive transparent tube.清洁刮刀，用于清洁感光鼓上残余碳粉，a cleaning blade for cleaning residual toner on the drum硒鼓，设有四个且环绕感光鼓排布，包括第一硒鼓、第二硒鼓、第三硒鼓和第四硒鼓，第一硒鼓能够将相应颜色的碳粉处理后转送到第一激光发生器扫描曝光后在感光鼓表面形成的静电潜像上；该静电潜像随感光鼓转动到下一位置再经第二激光发生器进行第二次扫描曝光，第二硒鼓能够将相应颜色的碳粉处理后转送到经二次扫描曝光后的静电潜像上；该静电潜像随感光鼓再转动到下一位置再经第三激光发生器进行第三次扫描曝光，第三硒鼓能够将相应颜色的碳粉处理后转送到经三次扫描曝光后的静电潜像上；该静电潜像继续随感光鼓转动到下一位置再经第四激光发生器进行第四次扫描曝光，第四硒鼓能够将相应颜色的碳粉处理后转送到经四次扫描曝光后的静电潜像上；The toner cartridge is provided with four surrounding drums, including a first toner cartridge, a second toner cartridge, a third toner cartridge, and a fourth toner cartridge. The first toner cartridge can process the toner of the corresponding color and then transfer it to the first laser generator for scanning. After exposure, the electrostatic latent image formed on the surface of the photosensitive drum; the electrostatic latent image is rotated to the next position with the photosensitive drum and then subjected to the second scanning exposure by the second laser generator, and the second toner cartridge can process the toner of the corresponding color After being transferred to the electrostatic latent image after the second scanning exposure; the electrostatic latent image is rotated to the next position with the photosensitive drum and then subjected to the third scanning exposure by the third laser generator, and the third toner cartridge can be correspondingly colored. After the toner is processed, it is transferred to the electrostatic latent image after three scanning exposures; the electrostatic latent image continues to rotate to the next position with the photosensitive drum, and then the fourth scanning exposure is performed by the fourth laser generator, and the fourth toner cartridge can be correspondingly The color toner is processed and transferred to the electrostatic latent image after four scanning exposures;充电结构，用于给感光鼓充电。A charging structure for charging the photosensitive drum.
- 根据权利要求1所述的一种彩色激光打印成像装置，其特征在于： 所述导电透明管为有机玻璃内混合导电剂制成。A color laser printing image forming apparatus according to claim 1, wherein: The conductive transparent tube is made of a mixed conductive agent in an organic glass.
- 根据权利要求1所述的一种彩色激光打印成像装置，其特征在于：所述导电透明管包括透明管及透明管外层覆有有的导电透明涂层。A color laser printing image forming apparatus according to claim 1, wherein said conductive transparent tube comprises a transparent tube and a transparent transparent coating coated on the outer layer of the transparent tube.
- 根据权利要求1所述的一种彩色激光打印成像装置，其特征在于：所述硒鼓包括显影辊、粉仓及用于控制碳粉厚度的刮粉刀。 A color laser printing image forming apparatus according to claim 1, wherein said toner cartridge comprises a developing roller, a powder magazine, and a doctor blade for controlling the thickness of the toner.
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