CN215867505U - Selenium drum with light source device - Google Patents
Selenium drum with light source device Download PDFInfo
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- CN215867505U CN215867505U CN202121871531.XU CN202121871531U CN215867505U CN 215867505 U CN215867505 U CN 215867505U CN 202121871531 U CN202121871531 U CN 202121871531U CN 215867505 U CN215867505 U CN 215867505U
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- powder bin
- cartridge
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Abstract
The utility model discloses a selenium drum with a light source device, which relates to the technical field of printers, and is characterized in that an image to be printed is printed on a photosensitive drum by controlling the on-off of light spots on a light path plate, so that the simplification of a light source is realized; a cylindrical lens array or an optical fiber array corresponding to the point-to-point of the light control unit is arranged to solve the problem of light divergence and prevent the light from deviating from the initial emission point; simple structure, it is longe-lived, the light homogeneity that sends is good, and the decay nature is little, does not need the lens combination of high accuracy, reduces assembly cost and manufacturing cost, and the light source device volume reduces, makes the installation flexibility increase, not only can be used to on the integrative cartridge of drum powder, still can be used to on the cartridge of drum powder separation, and overall cost obtains effective control.
Description
Technical Field
The utility model relates to the technical field of printers, in particular to a selenium drum with a light source device, which is applied to a laser printer.
Background
Most laser printers in the market generally use a laser scanning unit with a combined lens as a light source, and irradiate light onto a photosensitive drum of a toner cartridge assembly at a corresponding position according to the irradiation requirement of the laser scanning unit. The surface precision, the curvature of each part of a curved surface, the light transmittance and the driving motor of the combined lens in the laser scanning unit structure have strict requirements, the number of components in the laser is large, the size is relatively large, the cost is high, the requirement on the relative position between the laser scanning unit and the selenium drum is high, and the installation is difficult.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of high cost, difficult installation, light divergence, deviation and the like of a laser source of a laser printer in the prior art, the utility model provides the selenium drum with the light source device.
The technical scheme adopted by the utility model for solving the technical problem is as follows: the device comprises a powder bin, a waste powder bin, a photosensitive drum, a developing roller and a charging roller, wherein a light source device is arranged between the powder bin and the waste powder bin, the light source device comprises a light source unit, a light control unit and a light guide body, the light source unit is connected between the outer wall of the powder bin and the outer wall of the waste powder bin, and the light control unit is connected with the light source unit; the light guide body is arranged on the light control unit and corresponds to the point-to-point of the light control unit so as to avoid light rays from diverging; the photosensitive drum is opposite to the light source unit and is positioned between the powder bin and the waste powder bin; the transfer roller is arranged below the photosensitive drum, and the printing paper passes through the space between the photosensitive drum and the transfer roller and is output between the upper fixing roller and the lower pressure roller which are arranged on one side of the waste powder bin.
Further, the light source unit is connected between the outer wall of the powder bin and the outer wall of the waste powder bin through a light source unit support.
Further, a toner powder scraper is arranged on the side wall of the toner hopper and is in contact with the developing roller; and a cleaning scraper is arranged on the side wall of the waste powder bin and is in contact with the charging roller.
Further, the light source unit includes: the light source is fixed on the light source support, the light source support is installed in the outer cover, the light control unit is installed on the outer cover and located on one side opposite to the light source, and the light source control panel is installed on the outer cover and connected with the light source.
Further, the light control unit comprises a light circuit board and a main control board which are connected.
Further, the light guide body is a cylindrical lens array or an optical fiber array.
Further, the lenticular lens array structure is: one or more rows of lenticular lenses are mounted on the light control unit at regular intervals.
Further, the optical fiber array structure is: one or more rows of optical fibers are installed at a fixed interval on the light control unit.
Furthermore, the light path board is composed of a plurality of light spots arranged in an array matrix, and receives the electric signal output by the main control board to execute the on-off of the light spots.
Has the advantages that: the image to be printed is printed on the photosensitive drum by controlling the on-off of the light spot on the light path plate, so that the light source is simplified; a cylindrical lens array or an optical fiber array corresponding to the point-to-point of the light control unit is arranged to solve the problem of light divergence and prevent the light from deviating from the initial emission point; simple structure, it is longe-lived, the light homogeneity that sends is good, and the decay nature is little, does not need the lens combination of high accuracy, reduces assembly cost and manufacturing cost, and the light source device volume reduces, makes the installation flexibility increase, not only can be used to on the integrative cartridge of drum powder, still can be used to on the cartridge of drum powder separation, and overall cost obtains effective control.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a light source device according to the present invention;
FIG. 3 is a schematic diagram showing the relative positions of the components of the light source device of the present invention;
FIG. 4 is a view showing the structure of the installation of the lenticular lens array of the present invention;
FIG. 5 is a block diagram of the fiber array installation of the present invention;
fig. 6 is a view showing a structure of mounting the light source unit and the housing according to the present invention.
Reference numerals: 1. the device comprises a photosensitive drum, 2, a light guide body, 3, a light control unit, 4, a light source, 5, an outer cover, 6, a light source bracket, 7, a light source control panel, 8, a powder bin, 9, a waste powder bin, 10, a developing roller, 11, a charging roller, 12, a transfer roller, 13, an upper fixing roller, 14, a lower pressure roller, 15, a light source unit support, 16, a toner scraping plate, 17 and a cleaning scraper.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used merely to distinguish one element from another, and are not to be construed as indicating or implying relative importance.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
A selenium drum with a light source device comprises a powder bin 8, a waste powder bin 9, a photosensitive drum 1, a developing roller 10 and a charging roller 11, wherein a toner powder scraper 16 is arranged on the side wall of the powder bin 8, and the toner powder scraper 16 is in contact with the developing roller 10; and a cleaning scraper 17 is arranged on the side wall of the waste powder bin 9, and the cleaning scraper 17 is in contact with the charging roller 11.
A light source device is connected between the powder bin 8 and the waste powder bin 9 through a light source unit support 15; the photosensitive drum 1 is arranged between the powder bin 8 and the waste powder bin 9; a transfer roller 12 is provided below the photosensitive drum 1, and the printing paper passes between the photosensitive drum 1 and the transfer roller 12 and is discharged between an upper fixing roller 13 and a lower pressure roller 14 provided on the waste toner hopper 9 side.
The light source device comprises a light source unit, a light control unit 3, a photosensitive drum 1 and a light guide body 2;
the light source unit is connected between the outer wall of the powder bin 8 and the outer wall of the waste powder bin 9 and is arranged opposite to the photosensitive drum 1;
the light control unit 3 comprises a light circuit board and a main control board which are connected;
the light source unit includes: a light source 4, a light source bracket 6, an outer cover 5 and a light source control panel 7,
the light path board is composed of a plurality of light spots arranged in an array matrix, receives the electric signal output by the main control board and executes the on-off of the light spots; the execution of the on-off of the light spot is completed by a driving circuit arranged on the light control unit 3;
the drive circuit includes: the circuit comprises a resistor R1, an optical path switch and a triode Q1, wherein one end of the resistor R1 is grounded, and the other end of the resistor R1 is connected with the optical path switch; one end of the light path switch is grounded, the other end of the light path switch is connected with the joint of the resistor R1 and the triode Q1, the first end of the triode Q1 is connected with the light source control board 7, the second end of the triode Q1 is grounded, and the third end of the triode Q1 is connected with the joint of the resistor R1 and the light path switch;
the light sources 4 are fixed on the light source bracket 6, the light source bracket 6 is arranged in the outer cover 5, the number of the light sources 4 is consistent with that of the light spots, and the light sources are arranged in parallel and correspondingly; preferably, the light source 4 is a linear light source, and can be light with a specific wavelength, various lights suitable for photosensitive materials, including but not limited to LCD, LED, laser, etc., which emits light in a normally-on state.
The light control unit 3 is arranged on the outer cover 5 and is positioned at one side opposite to the light source 4, and the light source control panel 7 is arranged on the outer cover 5 and is connected with the light source 4;
the light guide body 2 is connected with the light control unit 3 and corresponds to the point-to-point of the light path board.
Preferably, the light guide 2 is a lenticular lens array or an optical fiber array:
the lenticular lens array structure is: one or more rows of lenticular lenses are mounted on the light control unit 3 at regular intervals.
The optical fiber array structure is as follows: one or more rows of optical fibers are installed at a fixed interval on the light control unit 3.
The distance between the plurality of cylindrical lenses and the optical fiber is as follows: is determined by the resolution of the printer, the preferred value is 1/600 inches, known as 600 DPI. The pitch size is a certain series, and can be preferably set as a multiple of 1/600, and the pitch size is certain, so that the software program can control the pitch size more easily.
The models of the main control board and the light source control board 7 are not specifically limited in this embodiment, and the control boards with the functions of signal conversion, transmission and control can be selected according to the circumstances.
The light emitted by the light source 4 is in a normally open state, the light path board is composed of light spots arranged in an array matrix, and the light spots are in two states of on and off, wherein the light spots are bright when on, the light can pass through, and the light spots are dark when off, and the light is blocked. The cylindrical lens array or the optical fiber array corresponding to the point is arranged behind the light path plate, and the divergence of the light can be solved through the structure, so that the light is not deviated from the initial emission point. The CPU of the printer issues an instruction according to the printing content, the corresponding light spot is switched on and off, the image to be printed is printed on the photosensitive drum 1 by controlling the on and off of the light spot on the light path plate, the image printing is completed, and the light source is simplified.
When in work: the main control board receives the CPU instruction of the laser printer, changes the digital signal of the image to be printed into an electric signal and outputs the electric signal to the light circuit board of the light control unit 3, the corresponding light spot on the light circuit board is in a conducting state, the light passes through the conducting light spot, the rest light spots are kept in a disconnected state, the disconnected light spot is in a dark state, and the light is blocked at the disconnected light spot. The photo control unit 3 irradiates a digital signal of an image to be printed onto the photosensitive drum 1, and forms a photoelectric image in units of light spots on the photosensitive drum 1. According to the printing speed, the rotating speed of the photosensitive drum 1 is different, the longitudinal distance of the corresponding light spots is the digit of the speed, and by adopting a plurality of rows of light spots, the insufficiency of the light spots can be compensated, and the printing speed can be accelerated.
Preferably, the optical path board can adopt a split structure to correspond to printers with different sizes as required, and can also be made into a curved surface as required.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (9)
1. A selenium drum with a light source device comprises a powder bin (8), a waste powder bin (9), a photosensitive drum (1), a developing roller (10) and a charging roller (11), wherein the light source device is arranged between the powder bin (8) and the waste powder bin (9), and comprises a light source unit, a light control unit (3) and a light guide body (2), and the selenium drum is characterized in that the light source unit is connected between the outer wall of the powder bin (8) and the outer wall of the waste powder bin (9), and the light control unit (3) is connected with the light source unit; the light guide body (2) is arranged on the light control unit (3) and corresponds to the point-to-point of the light control unit (3) so as to avoid light divergence; the photosensitive drum (1) is arranged opposite to the light source unit and is positioned between the powder bin (8) and the waste powder bin (9); a transfer roller (12) is arranged below the photosensitive drum (1), and printing paper passes through between the photosensitive drum (1) and the transfer roller (12) and is output between an upper fixing roller (13) and a lower pressure roller (14) which are arranged on one side of the waste powder bin (9).
2. The cartridge with the light source device as claimed in claim 1, wherein the light source unit is connected between the outer wall of the powder bin (8) and the outer wall of the waste powder bin (9) through a light source unit support (15).
3. The cartridge with the light source device as claimed in claim 1, wherein a toner blade (16) is mounted on the side wall of the powder hopper (8), the toner blade (16) is in contact with the developing roller (10); and a cleaning scraper (17) is arranged on the side wall of the waste powder bin (9), and the cleaning scraper (17) is in contact with the charging roller (11).
4. The cartridge as claimed in claim 1, wherein the light source unit comprises: light source (4), light source support (6), dustcoat (5), light source control panel (7), light source (4) are fixed on light source support (6), light source support (6) install in dustcoat (5), light-operated unit (3) are installed on dustcoat (5) and are located the one side relative with light source (4), light source control panel (7) install in on dustcoat (5) and be connected with light source (4).
5. The cartridge with the light source device as claimed in claim 1, wherein the light control unit (3) comprises a light path board and a main control board connected with each other.
6. The cartridge with the light source device according to claim 5, wherein the light guide (2) is a lenticular lens array or an optical fiber array.
7. The cartridge as claimed in claim 6, wherein the lenticular lens array structure is: one or more rows of cylindrical lenses are arranged on the light control unit (3) according to a fixed interval.
8. The cartridge with a light source device as claimed in claim 6, wherein the optical fiber array structure is: one or more rows of optical fibers are installed on the light control unit (3) at a fixed interval.
9. The cartridge as claimed in claim 5, wherein the light path plate comprises a plurality of light spots arranged in a matrix array, and receives the electrical signal outputted from the main control panel to perform the switching of the light spots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121871531.XU CN215867505U (en) | 2021-08-11 | 2021-08-11 | Selenium drum with light source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121871531.XU CN215867505U (en) | 2021-08-11 | 2021-08-11 | Selenium drum with light source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215867505U true CN215867505U (en) | 2022-02-18 |
Family
ID=80327776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121871531.XU Active CN215867505U (en) | 2021-08-11 | 2021-08-11 | Selenium drum with light source device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215867505U (en) |
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2021
- 2021-08-11 CN CN202121871531.XU patent/CN215867505U/en active Active
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