CN206270660U - A kind of color laser printing imaging system - Google Patents

Abstract

The utility model discloses a kind of color laser printing imaging system, it is characterised in that：Including photosensitive drums, the photosensitive drums include the conductive, transparent pipe that can be rotated, conductive, transparent tube outer surface is covered with one layer of optical coating, and conductive, transparent pipe passes through wired earth, laser generator, it is provided with four, it is distributed the conductive, transparent pipe inner and outer, the Laser emission angle of each laser generator is different, and the laser can be through conductive, transparent pipe scanning optical coating so as to expose sweep test to form electrostatic latent image, cleaning doctor, for cleaning remaining carbon dust in photosensitive drums, toner cartridge, it is provided with four and around photosensitive drums arrangement, a kind of carbon dust of the corresponding color of each toner cartridge treatment is simultaneously forwarded to through on the electrostatic latent image after corresponding laser generator scan exposure.

Description

A kind of color laser printing imaging system

Technical field

The utility model is related to a kind of color laser printer, particularly a kind of color laser printing imaging system.

Background technology

The image-forming principle of color laser printer is all to utilize laser scanning with monochrome laser printer as being, Charge latent image is formed on toner cartridge, ink powder is then adsorbed, then ink powder is transferred on printing paper, only monochrome laser printer There is a kind of powdered black ink, and color laser printer will use four kinds of ink powders of color.

A kind of structure of color laser printer for comparing main flow at present is：Assembled with toner cartridge including four toner cartridges and four The photosensitive drums of one, four toner cartridges are equipped with four kinds of colors based on CMYK colour systems and form a line, each toner cartridge respective handling one Plant color and by photosensitive drums exposure imaging, photosensitive drums lower section is the transfer printing adhesive tape of chromatography, it is photosensitive after a kind of each color for the treatment of Drum is then transferred to carry out chromatography on transfer printing adhesive tape, is then transferred on printing paper again, heated set, then cleans toner cartridge and enters again The treatment of the next circulation of row；The printer of said structure brother company to be used, and the structure is frequently necessary to repeatedly printing Chromatography correction is carried out on transfer printing adhesive tape afterwards, the structural volume is big.

And another primary structure is：Including four toner cartridges and a larger photosensitive drums, four are based on equipped with four kinds The toner cartridge of the color of CMYK colour systems is vertically arranged in the side of photosensitive drums, and a kind of color of each toner cartridge treatment is simultaneously exposed by photosensitive drums Photodevelopment, photosensitive drums lower section is the transfer printing adhesive tape of chromatography, and photosensitive drums are then transferred on transfer printing adhesive tape after a kind of each color for the treatment of Chromatography is carried out, is then transferred on printing paper again, heated set, then clean toner cartridge carries out the treatment of next circulation again, The printer of said structure Hewlett-Packard to be used, and the structural volume is slightly smaller.

But said structure haves the shortcomings that print speed is slow:One because every time printing be required for four kinds of colors point Other places are managed and are transferred, thus have dragged slowly print speed;Two is that printer needs to re-start chromatography school again after repeatedly printing Thus print speed is slower, just, thus regarding to the issue above the present inventor devises a kind of new color laser printing imaging system System.

The content of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of color laser printing imaging device, Ke Yi great The big print speed for improving color laser printer.

The utility model solves the technical scheme that its technical problem used：

A kind of color laser printing imaging system, it is characterised in that：Including

Photosensitive drums, the photosensitive drums include the conductive, transparent pipe that can be rotated, and conductive, transparent tube outer surface is covered with optical coating, And conductive, transparent pipe is by wired earth,

Laser generator, is provided with four, including first laser generator, second laser generator, the 3rd laser generator With the 4th laser generator, first laser generator outside the conductive, transparent pipe, send out by second laser generator, the 3rd laser Raw device and the 4th laser generator are located in the conductive, transparent pipe, and the Laser emission angle of each laser generator is different, and The laser of first laser generator transmitting can directly scan optical coating, second laser generator, the 3rd laser generator and The laser of the 4th laser generator transmitting can scan optical coating through conductive, transparent pipe,

Cleaning doctor, for cleaning remaining carbon dust in photosensitive drums,

Toner cartridge, is provided with four and around photosensitive drums arrangement, including the first toner cartridge, the second toner cartridge, the 3rd toner cartridge and the 4th selenium Drum, the first toner cartridge will can be transferred to after first laser generator scan exposure in photosensitive drums after the treatment of the carbon dust of respective color On the electrostatic latent image that surface is formed；The electrostatic latent image turns to the next position and carries out through second laser generator again with photosensitive drums Rescan exposes, and the second toner cartridge can will be transferred to the electrostatic after being exposed through rescan after the treatment of the carbon dust of respective color On sub-image；The electrostatic latent image is rotated further by carrying out third time scanning exposure through the 3rd laser generator again to the next position with photosensitive drums Light, the 3rd toner cartridge will can be transferred to through on the electrostatic latent image after three scan exposures after the treatment of the carbon dust of respective color；This is quiet Electric sub-image continuation turns to the next position with photosensitive drums carries out the 4th scan exposure, the 4th selenium through the 4th laser generator again Drum will can be transferred to through on the electrostatic latent image after four scan exposures after the treatment of the carbon dust of respective color；

Charging structure, for photosensitive drum charging..

The conductive, transparent pipe by lucite hybrid conductive agent be made.

The conductive, transparent pipe includes the electrically conductive transparent coating that transparent pipe and transparent outer tube layer are covered with.

The toner cartridge includes developer roll, powder cabin and the doctor blade for controlling carbon dust thickness.

The beneficial effects of the utility model are：When this imaging system is mainly rotated by photosensitive drums, make to be located at as needed First laser generator outside conductive, transparent pipe and the second laser generator in conductive, transparent pipe, the 3rd laser generator The laser launched with one or more in the 4th laser generator exposes successively in same position scan exposure each time Afterwards, exposed portion can adsorb the carbon dust of a certain color of its corresponding toner cartridge treatment, so as to directly realize set in photosensitive drums Color, is directly transferred on printing paper again after the completion of chromatography, thus not only streamlining, and without all of every kind of face during chromatography Color is intended to be transferred to respectively on transfer printing adhesive tape and could complete；It also avoid by transfer printing adhesive tape chromatography it is multiple after error can occur and The problem of correction is needed, so as to substantially reduce the time needed for chromatography, print speed is drastically increased.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is structural representation of the invention.

Specific embodiment

Reference picture 1, the invention discloses a kind of color laser printing imaging system, including photosensitive drums, the photosensitive drums include Conductive, transparent pipe 1 as axis rotation, the outer surface of conductive, transparent pipe 1 is covered with one layer of optical coating 2, and conductive, transparent pipe 1 is logical Cross wire 4 to be grounded, be provided with four laser generators 5, including first laser generator, second inside and outside the conductive, transparent pipe 1 altogether Laser generator, the 3rd laser generator and the 4th laser generator, first laser generator are located at outside the conductive, transparent pipe, Second laser generator, the 3rd laser generator and the 4th laser generator are located in the conductive, transparent pipe, laser generator 5 Do not rotated with conductive, transparent pipe 1 and the Laser emission angle of each laser generator 5 is different, and the laser can be through conductive saturating The scanning optical coating 2 of bright pipe 1 surround so as to expose sweep test to form electrostatic latent image, around photosensitive drums and is placed with four selenium Drum, each toner cartridge one laser generator 5 of correspondence, i.e., can adsorb corresponding selenium through the part after the scan exposure of laser generator 5 Carbon dust on drum, in photosensitive drums rotation process each time, not necessarily four laser generators 5 and its corresponding toner cartridge will works Make, but according to pattern color the need for, by programme-control any one or several laser generators 5 and its corresponding toner cartridge work Make, so as to mix the color of needs on the electrostatic latent image of photosensitive drums, i.e., the work of chromatography is done directly in photosensitive drums, so After be transferred on printing paper 6, remaining carbon dust is cleaned by cleaning doctor 10 in photosensitive drums, prepares subsequent cycle, certainly this knot The laser generator of structure can also make the light source of optical coating exposure, such as LED diodes using other.

In this example, toner cartridge includes developer roll 7, powder cabin 8 and and for controlling the doctor blade 9 of carbon dust thickness, and carbon dust Negative electrical charge can be taken when being scratched, said structure is that conventional structure is thus specifically unknown to be stated.

The operation principle summary of the present apparatus：Such as need to use four kinds of colors during a chromatography for the figure of circle Mixing, then charging structure, i.e. charging roller 11 fill the electricity about in -600V, i.e. photosensitive drum surface band with to photosensitive drums first Negative electrical charge, then the laser of the transmitting of first laser generator 51 some strength be directly radiated at one scanned on optical coating 2 Exposure intensity that is circular and ensureing the border circular areas is 10%, and in the process, the part that optical coating 2 is shone turns into conductor It is connected with ground wire by conductive, transparent pipe 1, partial negative charge flows away, so that the region voltage value also reduces by 10% or so, as It is 540, forms the electrostatic latent image area of -540V, then photosensitive drums is turned to during with the first 511 corresponding position of toner cartridge, the first selenium Negatively charged colored carbon dust is pulled to electrostatic latent image area by pressure difference on drum 511, and photosensitive drums are rotated further makes the border circular areas The position of the laser irradiation that second laser generator 52 is launched is gone to, the laser light that second laser generator 52 is launched is led 1 pair of border circular areas of electric transparent pipe carry out second exposure, and exposure intensity is 10%, and another partial negative charge flows away, region electricity Pressure value reduces by 10% or so, as 480 again, and the electrostatic latent image area voltage is -480V, and photosensitive drums are turned to and the after re-expose During two 512 corresponding positions of toner cartridge, negatively charged colored carbon dust is pulled to electrostatic latent image by pressure difference on the second toner cartridge 512 Area, similarly, colored carbon dust negatively charged on negatively charged colored carbon dust and the 4th toner cartridge 514 all can on the 3rd toner cartridge 513 The electrostatic latent image area exposed successively through the 3rd laser generator 53 and the 4th laser generator 54 is sequentially adsorbed in, so that four kinds Color mixes in electrostatic latent image area, so as to complete chromatography, is finally transferred on printing paper 6.

Developer roll 7 in said structure in toner cartridge is preferably contactless structure with photosensitive drums, also optional contact certainly The development structure of formula, but the development structure of contact has some defects：During contact, developer roll 7 easily will sense The carbon dust of upper other colors of light drum takes back the powder cabin of oneself, so as to cause colour mixture；And electrostatic is easily caused during contact The figure that the carbon dust of sub-image area absorption is formed is rubbed flower.

In said process, control chip can need the color of allotment come four laser generators of any control according to pattern One or more work in 5, so that corresponding toner cartridge can also work, so as to extract the color of needs, and control chip can Control to be exposed the exposure intensity in region to control each laser generator 5 to launch the intensity of laser, so as to control electrostatic to dive As the pressure difference between carbon dust in area and toner cartridge, so as to control the amount of the carbon dust of a certain color of the absorption in electrostatic latent image area.

In the present invention, conductive, transparent pipe 1 can be made up of two kinds of structures：A kind of structure is led by mixing in machine glass Electric agent is made, and lucite is methymethacrylate, so not only can guarantee that the translucency of conductive, transparent pipe 1 but also can have conduction Property；Another structure is that the electrically conductive transparent coating being covered with by transparent pipe and transparent outer tube layer is composited, and transparent pipe can be used Common glass or transparent with machine material, conductive function realizes that electrically conductive transparent coating is by electrically conductive transparent coating It is indium tin oxide, said structure is provided to guarantee to make what the laser generator 5 inside conductive, transparent pipe 1 sent Laser light and optical coating 2 is exposed, again can optical coating 2 exposure after guide exposure negative electrical charge formed electrostatic latent image.

A kind of color laser printing imaging system for being provided the utility model embodiment above, has carried out detailed Jie Continue, specific case used herein is set forth to principle of the present utility model and implementation method, above example is said It is bright to be only intended to help and understand method of the present utility model and its core concept；Simultaneously for those of ordinary skill in the art, According to thought of the present utility model, will change in specific embodiments and applications, in sum, this explanation Book content should not be construed as to limitation of the present utility model.

Claims (4)

1. a kind of color laser printing imaging system, it is characterised in that：Including

Photosensitive drums, the photosensitive drums include the conductive, transparent pipe that can be rotated, and conductive, transparent tube outer surface is covered with optical coating, and leads Electric transparent pipe passes through wired earth,

Laser generator, is provided with four, including first laser generator, second laser generator, the 3rd laser generator and Four laser generators, first laser generator is located at outside the conductive, transparent pipe, second laser generator, the 3rd laser generator It is located in the conductive, transparent pipe with the 4th laser generator, the Laser emission angle of each laser generator is different, and first The laser of laser generator transmitting can directly scan optical coating, second laser generator, the 3rd laser generator and the 4th The laser of laser generator transmitting can scan optical coating through conductive, transparent pipe,

Cleaning doctor, for cleaning remaining carbon dust in photosensitive drums,

Toner cartridge, is provided with four and around photosensitive drums arrangement, including the first toner cartridge, the second toner cartridge, the 3rd toner cartridge and the 4th toner cartridge, First toner cartridge will can be transferred to after first laser generator scan exposure in photosensitive drums table after the treatment of the carbon dust of respective color On the electrostatic latent image that face is formed；The electrostatic latent image turns to the next position and carries out second through second laser generator again with photosensitive drums Secondary scan exposure, the second toner cartridge can dive the electrostatic being transferred to after being exposed through rescan after the treatment of the carbon dust of respective color As upper；The electrostatic latent image is rotated further by carrying out third time scan exposure through the 3rd laser generator again to the next position with photosensitive drums, 3rd toner cartridge will can be transferred to through on the electrostatic latent image after three scan exposures after the treatment of the carbon dust of respective color；The electrostatic is dived The 4th scan exposure, the 4th toner cartridge energy are carried out as continuation turns to the next position with photosensitive drums through the 4th laser generator again It is transferred to through on the electrostatic latent image after four scan exposures after enough carbon dust treatment by respective color；

Charging structure, for photosensitive drum charging.

2. a kind of color laser printing imaging system according to claim 1, it is characterised in that：The conductive, transparent pipe is Hybrid conductive agent is made in lucite.

3. a kind of color laser printing imaging system according to claim 1, it is characterised in that：The conductive, transparent pipe bag Include the electrically conductive transparent coating that transparent pipe and transparent outer tube layer are covered with.

4. a kind of color laser printing imaging system according to claim 1, it is characterised in that：The toner cartridge includes development Roller, powder cabin and the doctor blade for controlling carbon dust thickness.