CN114571871A - Printing method and printer - Google Patents
Printing method and printer Download PDFInfo
- Publication number
- CN114571871A CN114571871A CN202210195490.XA CN202210195490A CN114571871A CN 114571871 A CN114571871 A CN 114571871A CN 202210195490 A CN202210195490 A CN 202210195490A CN 114571871 A CN114571871 A CN 114571871A
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- China
- Prior art keywords
- improved
- printing
- line
- printing method
- blurring
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/47—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light
- B41J2/471—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1202—Dedicated interfaces to print systems specifically adapted to achieve a particular effect
- G06F3/1203—Improving or facilitating administration, e.g. print management
- G06F3/1208—Improving or facilitating administration, e.g. print management resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview
Abstract
The invention relates to a printing method, aiming at a determined line to be improved, carrying out blurring treatment on lower pixel points in the line to be improved, and further reducing the carbon powder concentration of blurring treatment pixel points in the line to be improved when the line to be improved is printed during printing work. The printing method of the invention enables the printer to properly reduce the density of the carbon powder in the process of printing the lines to be improved, thereby improving the problem of fine line burrs caused by the fact that the carbon powder can not be completely adsorbed by paper due to the over-high printing speed in the printing working process. The invention also relates to a printer comprising a processor and a memory communicatively coupled to the processor, the memory having instructions stored therein that are executed by the processor to implement a printing method as previously described. According to the printer, the burr problem of the printed image is improved, so that the image printing effect is better.
Description
Technical Field
The invention relates to the technical field of printers, in particular to a printing method and a printer applying the printing method.
Background
When the laser printer works, the quality of a printed image can be guaranteed only by needing proper toner concentration and proper fixing temperature. However, when the laser printer is used for printing, especially when the printing is just started, the local toner concentration is too high during imaging, and the toner cannot reach the temperature for stable fixation and is sufficiently melted, so that the toner cannot be completely adsorbed by paper, and a burr phenomenon is generated. This phenomenon is concentrated on the first few pages of printing, and gradually disappears as the temperature of the printer rises as the number of printed pages increases.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a printing method capable of reducing the dispersion of carbon powder on paper and solving the problem of burr in printed image, aiming at the above prior art.
A second technical problem to be solved by the present invention is to provide a printer capable of improving a printing effect and reducing a probability of occurrence of burrs in a printed image, in view of the above-mentioned prior art.
The technical scheme adopted by the invention for solving the first problem is as follows: a method of printing, characterized by: aiming at the determined line to be improved, blurring the lower pixel point in the line to be improved, and further reducing the carbon powder concentration of the blurring pixel point part in the line to be improved when the line to be improved is printed during printing work.
In order to ensure that the quality of the printed image is not influenced by blurring, blurring of at least the lowermost pixel point in the line to be improved is not performed during blurring.
In order to perform blurring processing more specifically and achieve the maximum burr improvement effect with the least workload, the print image data in the set burr improvement range is screened and processed according to the set pixel condition and the RGB value condition, and then lines to be improved in the print image data are obtained.
Preferably, the method for determining the line to be improved is as follows:
s1, initializing a burr improvement range, and initializing an RGB value condition and a pixel condition corresponding to a line to be improved;
s2, acquiring a printing image corresponding to the current printing task;
s3, screening out image data to be processed which are located in the burr improvement range and meet the RGB value condition in the printed image;
and S4, performing matrix mapping on the image data to be processed, screening out the image data meeting the set pixel condition, and further acquiring the lines to be improved.
Preferably, after blurring the line to be improved, inverse matrix calculation is performed, and then the image data to be printed is obtained for printing.
Preferably, the RGB value condition is: r, G, B are all less than 10; the pixel conditions are: a line having a length greater than 240 pixels and a width greater than 4 pixels.
The technical scheme adopted by the invention for solving the second problem is as follows: a printer comprising a processor and a memory communicatively coupled to the processor, the memory having instructions stored therein, wherein: the instructions are executed by a processor to implement a printing method as previously described.
Compared with the prior art, the invention has the advantages that: according to the printing method, before the image is printed, image data optimization is carried out on the line to be improved, which is easy to generate line burrs, in the image, namely blurring treatment is carried out on the lower portion of the line to be improved, so that the density of carbon powder is properly reduced in the process of printing the line to be improved by the printer, and the problem of fine line burrs caused by the fact that the carbon powder cannot be completely adsorbed by paper due to the fact that the printing speed is too high in the printing working process is solved.
The printer using the printing method improves the burr problem of the printed image, so that the image printing effect is better.
Drawings
Fig. 1 is a schematic diagram of a burr improvement range in an embodiment of the present invention.
Fig. 2 is a schematic diagram of a line to be improved selected for the game of fig. 1 in the embodiment of the present invention.
Fig. 3 is a comparison diagram of line images to be improved before and after blurring processing in the embodiment of the present invention.
Fig. 4 is a comparison between an image printed without using the printing method and an image printed using the printing method in the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
When a laser printer carries out a printing task, particularly when a cold machine starts to carry out printing work, burrs exist in a printed image easily, and the quality of the printed image is affected. The areas where burrs occur are summarized based on the situation after the printer is used, for example, the areas where burrs easily occur in one printing task can be known through a printing test of the printer before the product is delivered from a factory. Of course, the region where the burr is likely to occur when one print job is performed may be determined by some image processing algorithm.
In this embodiment, the area in the print job that is prone to burrs is determined by a method of print testing and observation in the development stage. In the present embodiment, it is specifically found that in the case of cold start of the laser printer, a problem of burrs easily occurs in the middle of the paper in the left-right direction on which the first three pages of contents are printed, and as shown in fig. 1, the ratio of the width of the burr region in the left-right direction is approximately 1/2 of the print region.
In addition, in the area where the burr is likely to occur, the lower portion of the elongated line is generally likely to have the burr. In this case, a print job is performed by the following printing method.
As shown in fig. 1, the printing method in the present embodiment is: aiming at the determined line to be improved, the line to be improved refers to a line image which is easy to have an image burr problem, the lower pixel point in the line to be improved is subjected to blurring processing, a specific blurring processing algorithm can be processed by adopting an image blurring algorithm in the prior art, and accordingly the RGB value of the pixel point in the line to be improved after blurring processing is increased (namely, the color is lightened). So when printing the work, when printing and treating to improve the lines, can reduce and treat the carbon powder concentration of blurring processing pixel part in improving the lines, because the carbon powder concentration reduces, even under the image device in the printer does not reach the photographic fixing temperature condition of settlement, also can guarantee that the carbon powder of low concentration is fully adsorbed by the paper, improves the burr problem, improves the quality of printing the image. The number of rows of pixel points for blurring processing can be specifically determined as required, and for example, the number of rows of specific pixel points which can achieve the balance relation of deburring and clear image display can be determined through testing.
However, when blurring the lower part of the line, in order to ensure that the quality of the printed image is not affected by blurring processing, the integrity of the boundary of the printed line is ensured, and the phenomenon that the optimized image may generate straight line jagging due to blurring processing is avoided. The number of rows of pixel points which are not subjected to blurring in the lower edge of the line to be improved is specifically determined according to needs, and one row or two rows of pixel points at the lowest edge of the line to be improved are usually reserved without performing blurring processing. Therefore, the blurring part in the line to be improved is clamped between the pixel point parts which are not subjected to blurring in the vertical direction.
The pixel image after line enlargement for 1 pound width is shown in fig. 3, wherein the left side is the image of the line to be improved before blurring, and the right side is the image of the line to be improved after blurring.
Fig. 4 is a comparison between an image printed without using the printing method of the present invention and an image printed with using the printing method of the present invention, in which (a) is an image printed without using the printing method of the present invention, and (b) is an image printed with using the printing method of the present invention, it can be seen that there are many burrs under the elongated lines in (a), and the burr under the elongated lines in (b) is visibly improved.
In order to perform blurring more specifically and achieve the maximum burr improvement effect with the least workload, the print image data within the set burr improvement range is screened and processed according to the set pixel condition and the RGB value condition, and then the lines to be improved in the print image data are obtained.
In this embodiment, a method of determining a line to be improved is as follows.
S1, a burr improvement range is initialized, and as described above, the burr improvement range determined in the present embodiment is the central region in the left-right direction in the first three pages of content.
Initializing the RGB value condition and the pixel condition corresponding to the line to be improved. The RGB value condition refers to a color data value corresponding to a situation where the ink density is high and the burr is likely to occur, and for a laser printer, the RGB value condition generally refers to a gray scale value, and when a black image is printed, the ink density is high and the burr is likely to occur, so in this embodiment, the RGB value condition is: r, G, B are all less than 10. The pixel condition refers to an image that is prone to the problem of burr first, and in this embodiment, the pixel condition is: a line having a length greater than 240 pixels and a width greater than 4 pixels.
And S2, acquiring the printing image corresponding to the current printing task.
And S3, screening out the image data to be processed which is in the burr improvement range and meets the RGB value condition in the printing image. In this embodiment, the black image content in the middle region in the left-right direction of the first three pages of print content is selected. The screening method can be carried out by adopting the existing image screening algorithm.
S4, performing matrix mapping on the image data to be processed, and screening out image data satisfying the set pixel condition, that is, screening out black lines with a length greater than 240 pixels and a width greater than 4 pixels, and using the black lines as lines to be improved, as shown in fig. 2. The specific screening method can adopt the existing image processing method for screening.
And after the lines to be improved are screened out, performing the blurring treatment on the lines to be improved, performing inverse matrix calculation on the lines to be improved after the blurring treatment is performed on the lines to be improved, and further acquiring image data to be printed for printing.
According to the printing method, before the image is printed, image data optimization is carried out on the line to be improved, which is easy to generate line burrs, in the image, namely blurring treatment is carried out on the lower portion of the line to be improved, so that the density of carbon powder is properly reduced in the process of printing the line to be improved by the printer, and the problem of fine line burrs caused by the fact that the carbon powder cannot be completely adsorbed by paper due to the fact that the printing speed is too high in the printing working process is solved.
The invention also relates to a printer comprising a processor and a memory communicatively connected to the processor, the memory having stored therein instructions executable by the processor to implement a printing method as described above. The printer using the printing method improves the burr problem of the printed image, and enables the image printing effect to be better.
Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.
Claims (7)
1. A method of printing, characterized by: aiming at the determined line to be improved, blurring the lower pixel point in the line to be improved, and further reducing the carbon powder concentration of the blurring pixel point part in the line to be improved when the line to be improved is printed during printing work.
2. The printing method according to claim 1, wherein: when the blurring processing is carried out, the blurring processing of at least the lowermost pixel point in the line to be improved is not carried out.
3. The printing method according to claim 1 or 2, characterized in that: and screening and processing the printing image data in the set burr improvement range according to the set pixel condition and RGB value condition, and further acquiring lines to be improved in the printing image data.
4. A printing method according to claim 3, characterized in that: the method for determining the line to be improved comprises the following steps:
s1, initializing a burr improvement range, and initializing an RGB value condition and a pixel condition corresponding to a line to be improved;
s2, acquiring a printing image corresponding to the current printing task;
s3, screening out image data to be processed which are located in the burr improvement range and meet the RGB value condition in the printed image;
and S4, performing matrix mapping on the image data to be processed, screening out the image data meeting the set pixel condition, and further acquiring the lines to be improved.
5. The printing method according to claim 4, wherein: and after blurring the lines to be improved, performing inverse matrix calculation to further obtain image data to be printed so as to perform printing work.
6. The printing method according to claim 4, wherein: the RGB value conditions are as follows: r, G, B are all less than 10; the pixel conditions are: a line having a length greater than 240 pixels and a width greater than 4 pixels.
7. A printer comprising a processor and a memory communicatively coupled to the processor, the memory having instructions stored therein, wherein: the instructions being executable by a processor to implement a printing method as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210195490.XA CN114571871B (en) | 2022-03-01 | 2022-03-01 | Printing method and printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210195490.XA CN114571871B (en) | 2022-03-01 | 2022-03-01 | Printing method and printer |
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| Publication Number | Publication Date |
|---|---|
| CN114571871A true CN114571871A (en) | 2022-06-03 |
| CN114571871B CN114571871B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210195490.XA Active CN114571871B (en) | 2022-03-01 | 2022-03-01 | Printing method and printer |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2068528A1 (en) * | 1989-11-13 | 1991-05-14 | John Mark Gilbert | Non-gray scale anti-aliasing method for laser printers |
| JPH08149243A (en) * | 1994-11-24 | 1996-06-07 | Alps Electric Co Ltd | Print image forming method |
| JPH08183171A (en) * | 1994-12-28 | 1996-07-16 | Canon Inc | Printer |
| CN1617055A (en) * | 2003-11-13 | 2005-05-18 | 三星电子株式会社 | Print density setting method for image-forming apparatuses |
| JP2007290171A (en) * | 2006-04-21 | 2007-11-08 | Seiko Epson Corp | Method for evaluating improvement of printing quality of image, and apparatus and program for evaluating improvement of printing quality of image |
| CN102053517A (en) * | 2010-11-01 | 2011-05-11 | 广州市科密化学有限公司 | Method for preparing one-component electropositive color toner used for color laser printer |
| CN102211476A (en) * | 2010-03-23 | 2011-10-12 | 兄弟工业株式会社 | Image processing apparatus |
| CN202404359U (en) * | 2011-12-20 | 2012-08-29 | 杭州科威数码技术有限公司 | Magnetic roller for selenium drum |
| CN202826742U (en) * | 2012-08-21 | 2013-03-27 | 史立新 | Film image printing device |
| CN105103529A (en) * | 2013-01-29 | 2015-11-25 | 惠普发展公司，有限责任合伙企业 | Printer and method of processing an image to be printed |
| CN106896685A (en) * | 2015-12-17 | 2017-06-27 | 德阳九鼎智远知识产权运营有限公司 | One kind is new to preheat toner cartridge |
| CN107852445A (en) * | 2015-07-30 | 2018-03-27 | 京瓷办公信息系统株式会社 | Image processing apparatus |
| CN214027833U (en) * | 2020-11-20 | 2021-08-24 | 湖北鑫京北数码科技有限公司 | Environment-friendly treatment device for printer ink powder |
-
2022
- 2022-03-01 CN CN202210195490.XA patent/CN114571871B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2068528A1 (en) * | 1989-11-13 | 1991-05-14 | John Mark Gilbert | Non-gray scale anti-aliasing method for laser printers |
| JPH08149243A (en) * | 1994-11-24 | 1996-06-07 | Alps Electric Co Ltd | Print image forming method |
| JPH08183171A (en) * | 1994-12-28 | 1996-07-16 | Canon Inc | Printer |
| CN1617055A (en) * | 2003-11-13 | 2005-05-18 | 三星电子株式会社 | Print density setting method for image-forming apparatuses |
| JP2007290171A (en) * | 2006-04-21 | 2007-11-08 | Seiko Epson Corp | Method for evaluating improvement of printing quality of image, and apparatus and program for evaluating improvement of printing quality of image |
| CN102211476A (en) * | 2010-03-23 | 2011-10-12 | 兄弟工业株式会社 | Image processing apparatus |
| CN102053517A (en) * | 2010-11-01 | 2011-05-11 | 广州市科密化学有限公司 | Method for preparing one-component electropositive color toner used for color laser printer |
| CN202404359U (en) * | 2011-12-20 | 2012-08-29 | 杭州科威数码技术有限公司 | Magnetic roller for selenium drum |
| CN202826742U (en) * | 2012-08-21 | 2013-03-27 | 史立新 | Film image printing device |
| CN105103529A (en) * | 2013-01-29 | 2015-11-25 | 惠普发展公司，有限责任合伙企业 | Printer and method of processing an image to be printed |
| CN107852445A (en) * | 2015-07-30 | 2018-03-27 | 京瓷办公信息系统株式会社 | Image processing apparatus |
| CN106896685A (en) * | 2015-12-17 | 2017-06-27 | 德阳九鼎智远知识产权运营有限公司 | One kind is new to preheat toner cartridge |
| CN214027833U (en) * | 2020-11-20 | 2021-08-24 | 湖北鑫京北数码科技有限公司 | Environment-friendly treatment device for printer ink powder |
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| CN114571871B (en) | 2023-05-23 |
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