CN102073238A - Image forming device and method - Google Patents
Image forming device and method Download PDFInfo
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- CN102073238A CN102073238A CN 201110000450 CN201110000450A CN102073238A CN 102073238 A CN102073238 A CN 102073238A CN 201110000450 CN201110000450 CN 201110000450 CN 201110000450 A CN201110000450 A CN 201110000450A CN 102073238 A CN102073238 A CN 102073238A
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Abstract
The invention provides an image forming device and an image forming method. The image forming method comprises the following steps of: starting a laser scanning unit; after the laser scanning unit is started for preset time, starting a main motor; driving a photosensitive drum to rotate by using the main motor, illuminating the photosensitive drum by using the laser scanning unit, and forming a static latent image on the exposure surface of the photosensitive drum; transferring carbon powder to the static latent image, and developing to form a carbon powder image; and transferring a carbon powder image to a recording medium to form an image. By the image forming device and the image forming method, the main motor is started after the laser scanning unit is started, the problem of carbon powder waste is solved, the exposure area on the surface of the photosensitive drum is reduced, and the waste of the carbon powder is reduced.
Description
Technical field
The present invention relates to definition technique, particularly a kind of image processing system and method.
Background technology
Printer, duplicating machine and all-in-one multifunctional machine etc. all belong to image processing system, and it can print, and printing promptly is for example to form image on the paper at recording medium, and the process of printing also is the process of image forming.Image processing system adopts image forming method to form image on paper in the prior art.
The image forming method of prior art is at first to need laser scan unit (LSU) and main motor are started.This laser scan unit can expose to photosensitive drums according to its picture signal that receives, and forms electrostatic latent image on photosensitive drums; Main motor can drive photosensitive drums and rotate by being connected with photosensitive drums as gear trains such as gear or belts.Photosensitive drums can irradiation when rotating at laser scan unit under exposure form electrostatic latent image at outside surface, carbon dust attaches to formation carbon dust image on this electrostatic latent image during in order to follow-up developments.Wherein, laser scan unit in the said method and main motor start simultaneously.
But, said method is found it in actual use, and there are the following problems: laser scan unit is by automated power control (APC), and it needs the regular hour from starting to stablize, during this period of time, laser instrument remains on open mode always, reaches could begin imaging after stable; At this moment, laser scan unit can expose on photosensitive drums according to the view data that receives and form electrostatic latent image.And if laser scan unit and main motor start simultaneously, then main motor will drive the photosensitive drums rotation simultaneously, laser scan unit still can expose on photosensitive drums before stable and form image, but, because this moment, laser scan unit did not also receive picture signal, then its sub-image that forms on photosensitive drums is not the predetermined image that will print, if carbon dust is transferred on this sub-image of photosensitive drums from developing chamber, can also will cause the waste of carbon dust cleaning waste powder hopper through the unit that is cleaned after the transfer printing.
Summary of the invention
The purpose of this invention is to provide a kind of image processing system and method, solve the problem of carbon dust waste, to reduce the waste of carbon dust.
The invention provides a kind of image forming method, comprising:
Start laser scan unit;
After described laser scan unit starts Preset Time, start main motor;
Described main driven by motor photosensitive drums rotation, described laser scan unit shines the described photosensitive drums after the charging, forms electrostatic latent image on the exposed of described photosensitive drums;
Carbon dust develops and form the carbon dust image to described electrostatic latent image; And described carbon dust image is transferred on the recording medium, form image.
Aforesaid image forming method, after described laser scan unit started Preset Time, boosting voltage started.
Aforesaid image forming method, described boosting voltage comprises: charging voltage, developing voltage and transfer voltage.
Aforesaid image forming method, described Preset Time are smaller or equal to 5 seconds.
The invention provides a kind of image processing system, comprising:
Photosensitive drums;
Charhing unit is used for filling the surface of described photosensitive drums with even predetermined potential;
Laser scan unit is used for to described photosensitive drums exposure to form electrostatic latent image;
Developing cell is used for carbon dust is developed to the electrostatic latent image of described photosensitive drums to form the carbon dust image;
Transfer printing unit is used for described carbon dust image is transferred to recording medium;
Main motor is used to drive described photosensitive drums, charhing unit, developing cell and transfer printing unit;
Master control board, be connected with main motor with described laser scan unit respectively;
Described master control board comprises:
The scan control module is used to control described laser scan unit and starts;
Motor control module is used for controlling described main electric motor starting after described laser scan unit starts Preset Time.
Aforesaid image processing system, described master control board also comprises: voltage control module, be used for after described laser scan unit starts Preset Time, the control boosting voltage starts.
Aforesaid image processing system, described boosting voltage comprises: put on the charging voltage of described charhing unit, the transfer voltage that puts on the developing voltage of described developing cell and put on described transfer printing unit.
Aforesaid image processing system, described Preset Time are smaller or equal to 5 seconds.
Image processing system of the present invention and method by started laser scan unit earlier before main electric motor starting, have solved the problem of carbon dust waste, have reduced the exposure area of photosensitive drum surface, have reduced the waste of carbon dust.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the principle schematic of image forming method embodiment of the present invention;
Fig. 2 is the schematic flow sheet of image forming method embodiment of the present invention;
Fig. 3 is the preheating sequential chart among the image forming method embodiment of the present invention;
Fig. 4 is the printing sequential chart among the image forming method embodiment of the present invention;
Fig. 5 is the structural representation of the master control board among the image processing system embodiment of the present invention.
Description of reference numerals:
The 1-image processing system; The 2-handle box; The 3-photosensitive drums;
The 4-charhing unit; The 5-developer roll; The 6-powder feeding roller;
7-powder delivery cutter; The 8-transfer printing unit; The 9-image forming apparatus;
10-master's motor; The 11-puddle support; The 12-laser scan unit;
The 13-paper feed roller; 14-powder storehouse; The 15-warm-up mill;
The 16-pressure roll; 17-scan control module; The 18-motor control module;
The 19-voltage control module; 20-main control module.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope of protection of the invention.
Main technical schemes of the present invention is, laser scan unit of the prior art and main motor are started simultaneously, changes to laser scan unit and starts before main motor, thereby avoid reaching carbon dust wasting phenomenon before stable at laser scan unit.
Below by the drawings and specific embodiments, technical scheme of the present invention is described in further detail.
Embodiment one
Fig. 1 is the principle schematic of image forming method embodiment of the present invention, and Fig. 2 is the schematic flow sheet of image forming method embodiment of the present invention, wherein, and can be shown in Fig. 1 for being used to carry out the image processing system of present embodiment image forming method.As depicted in figs. 1 and 2, this method can may further comprise the steps:
At first start laser scan unit 12, promptly make laser scan unit 12 start prior to main motor 10.The described preheating that is mainly used in laser scan unit 12 prior to the time that starts.Wherein, main motor 10 and laser scan unit 12 can be controlled startup by the master control borad (not shown in FIG.) of image processing system.
Can be referring to Fig. 3 and Fig. 4, Fig. 3 is the preheating sequential chart among the image forming method embodiment of the present invention, Fig. 4 prints sequential chart among the image forming method embodiment of the present invention, by Fig. 3 and Fig. 4 as can be seen, laser scan unit 12 starts prior to main motor 10, the time of Qi Donging can be the preset time t shown in Fig. 3 in advance, and this preset time t is to be used for the time that laser scan unit 12 carries out automated power control, promptly restarts main motor behind laser scan unit 12 power stabilities.In this preset time t, laser scan unit 12 carries out preheating, reaches stable until laser scan unit 12.For example, this time t can be in 5 seconds, preferably in 3.5 seconds.
After laser scan unit 12 started preset time t, its power reached stable, and this is stable to refer to laser scan unit 12 and picture signal can be exposed.At this moment, start main motor 10.In addition, high pressure also can start simultaneously with main motor 10.This high pressure is boosting voltage, and boosting voltage can comprise: charging voltage, developing voltage and transfer voltage etc., and promptly after starting preset time t, restarts laser scan unit 12.
Owing to when printing, start laser scan unit 12 earlier, restart main motor 10, this method has following effect: because laser scan unit 12 is needing certain hour from starting to stablize, at this section in the period, laser scan unit 12 can expose to photosensitive drums 3, but because main motor 10 is not activated, photosensitive drums 3 is not just rotated yet, even exposure is also just linear exposure on photosensitive drums 3, can not form large-scale exposure image, reduced the exposure area of photosensitive drum surface, so reduced the waste of carbon dust.
In addition, if high pressure also starts after laser scan unit 12, promptly make charging voltage, developing voltage and transfer voltage all after laser scan unit 12 startup preset time t reach power stability, restart, can further prevent cleaning unit in the image processing system the carbon powder cleaning on the photosensitive drums to waste powder hopper, reduce the waste of carbon dust to the full extent.
Under the drive of main motor 10, photosensitive drums in the handle box 23 is rotated with predetermined direction, and for example the photosensitive drums in the present embodiment 3 is carried out the clockwise direction rotation.In rotary course, the outside surface of photosensitive drums 3 is recharged unit 4 and fills with predetermined polarity voltage.Its charged outside surface was subjected to the exposure of laser scan unit 12 when photosensitive drums 3 was rotated, so form electrostatic latent image on the outside surface of exposure.
Carbon dust in 11 pairs of powder storehouses 14 of puddle support stirs, and 6 of powder feeding roller are delivered to carbon dust on the developer roll 5.Then, the carbon dust on the developer roll 5 is forming the thin carbon dust layer of one deck on developer roll 5 under the effect of powder delivery cutter 7.Under effect of electric field, thin carbon dust layer is transferred to above the electrostatic latent image on the photosensitive drums 3, becomes visible carbon dust image in the surface development of photosensitive drums 3.
The recording medium P (being paper, transparent film etc.) that opens that is loaded in the paper feeding box (not shown on the paper) supplies with to photosensitive drums 3 along the paper feed passage by the driving of paper feed roller 13.In the time of between recording medium P is by photosensitive drums 3 and transfer printing unit 8, the carbon dust image on the photosensitive drums 3 is transferred on the recording medium P.
Have recording medium P that transfer printing has a toner subsequently by between the warm-up mill 15 and pressure roll 16 of image forming apparatus 9, thus the carbon dust image by photographic fixing on recording medium P.Paper P after the last photographic fixing discharges from image processing system 1.
Wherein, in above-mentioned print procedure, finish one page paper but in off time that the next page paper does not also have to print, can close laser scan unit 12, transfer voltage changes the voltage that becomes with the carbon dust identical polar, can be used to clean the carbon dust that may be stained with on the transfer printing unit 8.Can be referring to Fig. 4, Fig. 4 is the printing sequential chart among the image forming method embodiment of the present invention.
The image forming method of present embodiment by started laser scan unit earlier before main electric motor starting, has solved the problem of carbon dust waste, has reduced the exposure area of photosensitive drum surface, has reduced the waste of carbon dust.
Embodiment two
Embodiments of the invention also provide a kind of image processing system, this device can comprise laser scan unit, main motor, master control board, transfer printing unit and handle box, described handle box comprises photosensitive drums, charhing unit, developing cell and powder storehouse, described powder stores carbon dust in the storehouse, and described master control board is connected with main motor with described laser scan unit respectively.
Wherein, the structure of described control panel can be referring to shown in Figure 5, and Fig. 5 is the structural representation of the master control board among the image processing system embodiment of the present invention.
This master control board can comprise main control module 20, scan control module 17 and motor control module 18.This scan control module 17 is used to control described laser scan unit and starts; Motor control module 18 is used to control described main electric motor starting; Main control module 20 is connected with motor control module with described scan control module respectively, is used for indicating described motor control module to start described main motor after described scan control module starts the laser scan unit Preset Time.
Consider that laser scan unit receives print command state difference before, be divided into directly print after the start preheating, preheating finish the back at interval very little a period of time receive print command and start after a very long time just receive print command, described Preset Time can be set to smaller or equal to 5 seconds, for example can be set to 3.5 seconds.
In the present embodiment, master control board can also comprise voltage control module 19, and this voltage control module 19 is used for after described laser scan unit starts Preset Time, and the control boosting voltage starts.For example, this boosting voltage can comprise the charging voltage that puts on described charhing unit, the transfer voltage that puts on the developing voltage of described developing cell and put on described transfer printing unit.
Concrete, for example, main control module 20 can comprise time control unit and indicating member.Wherein, the time control unit is connected with described scan control module 17, can be used for setting after scan control module 17 starts laser scan unit the Preset Time smaller or equal to 5 seconds; One end of indicating member is connected with the time control unit, and the other end connects motor control module 18 and voltage control module 19 respectively.Indicating member can instructed voltage control module 19 start boosting voltage.
Wherein, the structure of the image processing system of present embodiment can be specifically referring to shown in Fig. 1, and this image processing system can be used to carry out the image forming method of any embodiment of the present invention.
The image processing system of present embodiment by started laser scan unit earlier before main electric motor starting, has solved the problem of carbon dust waste, has reduced the exposure area of photosensitive drum surface, has reduced the waste of carbon dust.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. an image forming method is characterized in that, comprising:
Start laser scan unit;
After described laser scan unit starts Preset Time, start main motor;
Described main driven by motor photosensitive drums rotation, described laser scan unit shines the described photosensitive drums after the charging, forms electrostatic latent image on the exposed of described photosensitive drums;
Carbon dust develops and form the carbon dust image to described electrostatic latent image; And described carbon dust image is transferred on the recording medium, form image.
2. image forming method according to claim 1 is characterized in that, also comprises:
After described laser scan unit started Preset Time, boosting voltage started.
3. image forming method according to claim 2 is characterized in that, described boosting voltage comprises: charging voltage, developing voltage and transfer voltage.
4. according to the arbitrary described image forming method of claim 1-3, it is characterized in that described Preset Time is smaller or equal to 5 seconds.
5. an image processing system is characterized in that, comprising:
Photosensitive drums;
Charhing unit is used for filling the surface of described photosensitive drums with even predetermined potential;
Laser scan unit is used for to described photosensitive drums exposure to form electrostatic latent image;
Developing cell is used for carbon dust is developed to the electrostatic latent image of described photosensitive drums to form the carbon dust image;
Transfer printing unit is used for described carbon dust image is transferred to recording medium;
Main motor is used to drive described photosensitive drums, charhing unit, developing cell and transfer printing unit;
Master control board, be connected with main motor with described laser scan unit respectively;
Described master control board comprises:
The scan control module is used to control described laser scan unit and starts;
Motor control module is used to control described main electric motor starting;
The main control module is connected with motor control module with described scan control module respectively, is used for indicating described motor control module to start described main motor after described scan control module starts the laser scan unit Preset Time.
6. image processing system according to claim 5 is characterized in that, described master control board also comprises:
Voltage control module is connected with described main control module, is used for after described laser scan unit starts Preset Time, and the control boosting voltage starts.
7. image processing system according to claim 6 is characterized in that, described boosting voltage comprises: put on the charging voltage of described charhing unit, the transfer voltage that puts on the developing voltage of described developing cell and put on described transfer printing unit.
8. according to the arbitrary described image processing system of claim 5-7, it is characterized in that described Preset Time is smaller or equal to 5 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110000450 CN102073238A (en) | 2011-01-04 | 2011-01-04 | Image forming device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110000450 CN102073238A (en) | 2011-01-04 | 2011-01-04 | Image forming device and method |
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| CN102073238A true CN102073238A (en) | 2011-05-25 |
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| CN 201110000450 Pending CN102073238A (en) | 2011-01-04 | 2011-01-04 | Image forming device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166323A (en) * | 2014-08-22 | 2014-11-26 | 珠海天威飞马打印耗材有限公司 | Processing cartridge and development voltage control circuit and method thereof |
| CN110928154A (en) * | 2019-12-13 | 2020-03-27 | 上海旷沃科技有限公司 | Voltage-based selenium drum service life detection method |
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| CN1206128A (en) * | 1997-07-22 | 1999-01-27 | 三星电子株式会社 | Method of preventing back side of paper from contamination in electrophotography printer |
| CN1573614A (en) * | 2003-06-24 | 2005-02-02 | 村田机械株式会社 | Image forming device |
| CN201917778U (en) * | 2011-01-04 | 2011-08-03 | 珠海赛纳打印科技股份有限公司 | Image forming device |
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2011
- 2011-01-04 CN CN 201110000450 patent/CN102073238A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206128A (en) * | 1997-07-22 | 1999-01-27 | 三星电子株式会社 | Method of preventing back side of paper from contamination in electrophotography printer |
| CN1573614A (en) * | 2003-06-24 | 2005-02-02 | 村田机械株式会社 | Image forming device |
| CN201917778U (en) * | 2011-01-04 | 2011-08-03 | 珠海赛纳打印科技股份有限公司 | Image forming device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166323A (en) * | 2014-08-22 | 2014-11-26 | 珠海天威飞马打印耗材有限公司 | Processing cartridge and development voltage control circuit and method thereof |
| CN104166323B (en) * | 2014-08-22 | 2018-04-10 | 珠海天威飞马打印耗材有限公司 | Handle box and its developing voltage control circuit, developing voltage control method |
| CN110928154A (en) * | 2019-12-13 | 2020-03-27 | 上海旷沃科技有限公司 | Voltage-based selenium drum service life detection method |
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Application publication date: 20110525 |