CN106681673B - A kind of thermal printer gray level printing method - Google Patents
A kind of thermal printer gray level printing method Download PDFInfo
- Publication number
- CN106681673B CN106681673B CN201611191020.7A CN201611191020A CN106681673B CN 106681673 B CN106681673 B CN 106681673B CN 201611191020 A CN201611191020 A CN 201611191020A CN 106681673 B CN106681673 B CN 106681673B
- Authority
- CN
- China
- Prior art keywords
- data
- grades
- image
- byte
- thermal printer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- G06F3/1205—Improving or facilitating administration, e.g. print management resulting in increased flexibility in print job configuration, e.g. job settings, print requirements, job tickets
-
- 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
- G06F3/1211—Improving printing performance
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Electronic Switches (AREA)
Abstract
The present invention provides a kind of thermal printer gray level printing method, the method are as follows: image is pre-processed by host computer, image is switched into thermal printer and needs grey scale image data, thermal printing generator terminal carries out the gradation data of host computer a line to be converted into multirow binary map, and multirow binary map is then printed gray level image in a row by control heating levels and thermal printer motor paper feeding speed.The present invention improves thermal printer flexibility, and it is difficult to solve the parsing of gray scale picture by reasonable data processing compression algorithm and printer double buffers.
Description
Technical field
The present invention relates to printer technology field more particularly to a kind of thermal printer gray level printing methods.
Background technique
Printer is exactly by certain form of expression by the idea in the minds of people (comprising text, image, shape nothing but
Deng) machine that is showed with specific medium.For example, thermal printer is exactly the figure and text that people are thought to expression
Word is presented by heat-sensitive paper and is occurred.
Bill printer can be divided into temperature-sensitive, thermal transfer, stylus printer according to printing type.
Thermal printer working principle is that semiconductor heating element is equipped on print head, and print head heats and contacts temperature-sensitive
The pattern of needs can be printed after printing paper, principle is similar with heat-sensitive type facsimile machine.Image is by heating, in temperature-sensitive
In the film of paper generate chemical reaction and generate.This thermal printer chemical reaction carries out at a certain temperature.It is high
Temperature can accelerate this chemical reaction.When temperature is lower than 60 DEG C, paper is needed by considerably long, and even up to several years time could
Become dark；And when temperature is 200 DEG C, this reflection can be completed in several microseconds.So to make thermal-sensitive printer printing
Figure and text out just must satisfy two conditions, heat-sensitive paper and high temperature.Thermal printer on current market can only print two
Value figure, that is to say, that either most black or white, printing picture effect is poor, not flexible.
A kind of " the gray-scale Control device of thermal printer " is disclosed in the prior art, sees Publication No.: CN201619297U,
Publication date are as follows: the Chinese patent of 2010-11-03 discloses a kind of gray-scale Control device of thermal printer, with thermal printing head
Piece is connected, and the gray-scale Control device is to realize the gray-scale Control to thermal printing head piece；The gray-scale Control device includes micro- place
Manage unit, and FPGA/CPLD unit；Heating time of the microprocessing unit to control print data；The FPGA/CPLD
Unit is connected with microprocessing unit, accurately to carry out print time control and timing control.The utility model in combination with
The operation advantage of microprocessing unit and the fast reaction of FPGA/CPLD unit and precise time control advantage, realize multistage ash
Print control is spent, hardware and software cost is saved.The technical solution and present patent application that the utility model uses be not identical.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of thermal printer gray level printing method, improves temperature-sensitive
Printer flexibility solves the parsing of gray scale picture by reasonable data processing compression algorithm and printer double buffers
It is difficult.
The present invention is implemented as follows: a kind of thermal printer gray level printing method, the method are as follows: pass through host computer pair
Image is pre-processed, and image is switched to thermal printer and needs grey scale image data, and thermal printing generator terminal is by host computer
The gradation data of a line carries out being converted into multirow binary map, then passes through control heating levels and thermal printer motor paper feed speed
Multirow binary map is printed gray level image in a row by degree.
Further, the method is further specifically: host computer is responsible for reading 256 grades of gray level images progress data pressures
256 grades of gray level images are divided into the grey scale image data of thermal printer needs by contracting；The printer side provides instruction solution
Analysis task and print out task；Instruction parsing task, which is realized, receives the director data that host computer issues, and carries out data parsing and be put into
Buffer area；Thermal printing generator terminal carries out the gradation data of host computer a line to be converted into multirow binary map；The print out task will
The data of deposit buffer area are printed, and control motor and control heating time and grade for multirow two-value according to buffered data
Figure prints gray level image in a row.
Further, the buffer area is double buffering, the number when first buffering area is idle, after instructing dissection process
According to being put into first buffering area, when first buffering area is not idle, if second buffering area is idle, will be put into second buffering area, if
Two buffer areas are not idle, then printer is printing buffer content, and next buffered data has had been prepared for, at this time
Instruction parsing task blocking；Print out task first prints first buffering area content, and first buffering area printing terminates can be by the first buffering
Area is set as idle state, then continues directly to printing second buffering area data, once and first buffering area idle instruction solution
Analysis task is run again, is prepared next data and is put into first buffering area, print out task has printed second buffering area, so not
Printing first buffering area content is directly carried out with waiting, unremitting printing can be recycled always；
Further, host computer is responsible for reading 256 grades of gray level images, and 256 grades of gray level images, which are divided into thermal printer, to be needed
The level Four greyscale image data wanted；Level Four greyscale image data indicates a picture point with 2 bit, and host computer reads 256 grades of gray scales
The size of image graphic, one gray scale point of a byte representation, value indicates tonal gradation 0x00 to 0xFF, due to only needing to be divided into
Level Four gray scale is needed 256 grades of progress quarterings, it is only necessary to which the front two for taking this byte is equivalent to divided by 64, by 4 words
Joint number evidence is merged into a byte；Therefore byte data indicates 4 pixels, and host computer sends out a byte 0x1B, and first
Pixel series indicates that number of greyscale levels 0, second pixel o'clock is indicated by the 5th, 4bit, number of greyscale levels by the 7th, 6bit
It is 1, second pixel o'clock is indicated by the 3rd, 2bit, number of greyscale levels 3, and second pixel o'clock is indicated by the 1st, 0bit, ash
Spending series is 4；
The 3 row bianry images for converting data in level Four greyscale image data, i.e., by the level Four gray scale diagram data of 2 bytes
3 byte two-value diagram datas are changed into be put into caching；
In level Four greyscale image data, use 1 indicates to want hot spot, and 0 indicates not hot spot, 3 byte binary map compositions one
The first row data are first loaded print head, then gate heating signal by 4 grades of grayscale images of row, and print head is heated in corresponding position,
Reach setting time after close heating gating signal, be then followed by load the second row two-value data, and so on load the third line
At this moment two-value data controls motor, just allows motor to cover a point row, so finally by after the completion of the printing of 3 row two-value datas
This point row just has corresponding gradation effect.
Further, the method: host computer is responsible for reading 256 grades of gray level images, and 256 grades of gray level images are divided into temperature-sensitive
Eight grades of greyscale image datas that printer needs；Eight grades of greyscale image datas indicate a pixel, host computer hair with 4 bit
A byte data is sent to indicate that 2 pixels, the 0bit and 4bit of each byte retain, host computer sends out a byte
0x0A, the 1st pixel series indicate that 4bit retains, number of greyscale levels 0 by the 7th, 6,5bit, and the 2nd pixel is by the
3,2,1bit indicate, number of greyscale levels 1；2nd pixel is by the 3rd, 2,1bit expression, number of greyscale levels 1；2nd picture
Vegetarian refreshments indicates that 0bit retains, number of greyscale levels 5 by the 3rd, 2,1bit；
The 7 row bianry images for converting data in eight grades of greyscale image datas, i.e., by eight grades of gray scale diagram datas of 4 bytes
7 byte two-value diagram datas are changed into be put into caching.
The present invention has the advantage that the present invention is based on traditional thermal printers to carry out function optimization, improves temperature-sensitive and beat
It is tired to solve the parsing of gray scale picture by reasonable data processing compression algorithm and printer double buffers for the clever activity of print
Difficulty, print data amount greatly bad transmission the problems such as, printing effect is substantially increased, so that print speed will not be by data volume shadow
It rings；Gray level printing can not only print portrait, logo, landscape etc., can also be printed in the industries class business such as bank bank card,
Certification of Second Generation etc..
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the method for the present invention structural schematic diagram.
Fig. 2 is the flow diagram that double buffering of the present invention handles data.
Fig. 3 is the schematic diagram of 3 row two-value data hot spots of the invention.
Fig. 4 is multiple row gradation effect schematic diagrames after printing in the present invention.
Specific embodiment
It please refers to shown in Fig. 1 to Fig. 2, a kind of thermal printer gray level printing method of the invention, in order to realize that gray scale is beaten
Print can control heating head to the energy of paper by control heating time and heating times, because image data amount is larger,
And mcu resource and data transmission bauds are limited, institute's host computer in need pre-processes image, and image is switched to heat
Quick printer needs tonal gradation, could improve print quality and print speed in this way.Printer side is by the ash of host computer a line
Degree is according to carrying out being converted into multirow binary map, then by control heating levels and thermal printer motor paper feed by this multirow two
Value figure prints gray level image in a row.
The method is further specifically: host computer is responsible for reading 256 grades of gray level images progress data compressions, by 256 grades
Gray level image is divided into the grey scale image data of thermal printer needs；The printer side provides instruction parsing task and beats
Print task；Instruction parsing task, which is realized, receives the director data that host computer issues, and carries out data parsing and be put into buffer area；Temperature-sensitive
Printer side carries out the gradation data of host computer a line to be converted into multirow binary map；The print out task is stored into buffer area
Data are printed, and are controlled motor and control heating time and grade according to buffered data and are printed multirow binary map in a row
Gray level image.
In order to improve printing effect, raising mcu utilization rate devises double buffers, and the buffer area is double buffering,
When first buffering area is idle, the data after instructing dissection process are put into first buffering area, when first buffering area is not idle, if
Second buffering area is idle, then will be put into second buffering area, if two buffer areas are not idle, printer is printing buffering
Content, and next buffered data has had been prepared for, the task blocking of instruction parsing at this time；Print out task first prints the first buffering
Area's content, first buffering area printing terminate that idle state can be set by first buffering area, and it is slow then to continue directly to printing second
Rush area's data, once and first buffering area idle instruction parsing task run again, preparing next data, to be put into first slow
It rushing in area, after print out task has printed second buffering area, first buffering area data are put into buffering by instruction parsing task already,
In this way without waiting for printing first buffering area content is directly carried out, unremitting printing can be recycled always in this way.
As shown in Figure 3 and Figure 4, below by taking level Four gray scale as an example:
Host computer is responsible for reading 256 grades of gray level images, and 256 grades of gray level images are divided into the level Four ash of thermal printer needs
Spend image data；Level Four greyscale image data indicates a picture point with 2 bit, and host computer reads 256 grades of grayscale image bmp pictures,
The size of one byte representation, one gray scale point, value indicates tonal gradation 0x00 to 0xFF, because only needing to be divided into 4 grades of gray scales,
It needs 256 grade of 4 equal part, so only needing to take the front two of this byte, is equivalent to divided by 64, it can be by 4 byte datas
It is merged into a byte.Therefore a byte data can indicate 4 pixels, as host computer sends out a byte 0x1B
(00011011), first pixel series is indicated by the 7th, 6bit, number of greyscale levels 0, second pixel o'clock by the 5th,
4bit indicates that number of greyscale levels 1, second pixel o'clock is indicated by the 3rd, 2bit, number of greyscale levels 3, second pixel point
It is indicated by the 1st, 0bit, number of greyscale levels 4；
Instruction parsing task, which is responsible for realizing receiving, reads the director data that issues of host computer, and carry out data parsing be put into it is slow
Rush area.The received instruction of host computer is handled first, by taking 4 grades of gradation datas as an example, first by data progression process, if it counts
According to for 0xE4 (11100100), 4 points are indicated, tonal gradation is respectively 3,2,1,0；
The 3 row bianry images for converting data in level Four greyscale image data, as (table 1 turns table 1 for two byte 0xE4 data
Change --- 4 grades of gray scales) shown in, by 4 grades of gray scale diagram datas (0xE4 0xE4) of 8 points (2 bytes), change into 3 bytes (3
Row) two-value diagram data (0xEE 0xCC 0x88) is put into caching,
Table 1
In level Four greyscale image data, use 1 indicates to want hot spot, and 0 indicates not hot spot, 3 byte binary map compositions one
The first row data are first loaded print head, then gate heating signal by 4 grades of grayscale images of row, and print head is heated in corresponding position,
Heating gating signal is closed after reaching setting time, is then followed by the second row two-value data of load, and so on, load the third line
Two-value data, (this hot spot is all black to 3 row two-value data hot spots, which is not with color lump as shown in Figure 3
Figure), finally by 3 row two-value datas printing after the completion of, at this moment control motor, motor just allowed to cover a point row, in this way this
A point row just has corresponding gradation effect.Substantially (black block is whole amplified multiple row effects in figure as shown in Figure 4
Gray scale picture when printing is not color lump figure).
In addition, the principle that eight grades of greyscale image datas are same: the method: host computer is responsible for reading 256 grades of grayscale images
256 grades of gray level images are divided into eight grades of greyscale image datas of thermal printer needs by picture；Eight grades of greyscale image datas are with 4
Bit indicates a pixel, and host computer, which sends byte data, indicates 2 pixels, the 0bit of each byte and the
4bit retains, if host computer sends out a byte 0x0A (00001010), the 1st pixel series is indicated by the 7th, 6,5bit, the
4bit retains, number of greyscale levels 0, and the 2nd pixel is indicated by the 3rd, 2,1bit, number of greyscale levels 1；2nd pixel
It is indicated by the 3rd, 2,1bit, number of greyscale levels 1；2nd pixel indicates that 0bit retains, gray scale by the 3rd, 2,1bit
Series is 5；
The 7 row bianry images for converting data in eight grades of greyscale image datas, i.e., by eight grades of gray scale diagram datas of 4 bytes
7 byte two-value diagram datas are changed into be put into caching.
Performance in the present invention according to printer can be 1 grade of gray scale, 2 grades of gray scales, 3 grades of gray scales, 4 grades of gray scales, 5 grades of ashes
Degree, 6 grades of gray scales, 7 grades of gray scales, 8 grades of gray scales, 9 grades of gray scales etc., the processing mode principle of those gray scales is similar, herein just not into
Row illustrates one by one.
In short, the present invention is based on traditional thermal printers to carry out function optimization, thermal printer flexibility is improved, is passed through
Reasonable data processing compression algorithm and printer double buffers solve gray scale picture parsing difficulty, and print data amount is big
The problems such as bad transmission, substantially increases printing effect, so that print speed will not be influenced by data volume.Gray level printing not only may be used
To print portrait, logo, landscape etc., bank card, Certification of Second Generation etc. can also be printed in the industries class business such as bank.
Although specific embodiments of the present invention have been described above, those familiar with the art should be managed
Solution, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, it is familiar with this
The technical staff in field should be covered of the invention according to modification and variation equivalent made by spirit of the invention
In scope of the claimed protection.
Claims (4)
1. a kind of thermal printer gray level printing method, it is characterised in that: the method are as follows: carried out by host computer to image pre-
Image is switched to grey scale image data required for thermal printer by processing, and thermal printing generator terminal is by the ash of host computer a line
Degree is according to carrying out being converted into multirow binary map, then by control heating levels and thermal printer motor paper feeding speed by multirow
Binary map prints gray level image in a row；
The method is further specifically: host computer is responsible for reading 256 grades of gray level images progress data compressions, by 256 grades of gray scales
Image is divided into grey scale image data required for thermal printer；The printer side provides instruction parsing task and printing
Task；Instruction parsing task, which is realized, receives the director data that host computer issues, and carries out data parsing and be put into buffer area；Temperature-sensitive is beaten
Print generator terminal carries out the gradation data of host computer a line to be converted into multirow binary map；The print out task is stored into the number of buffer area
According to being printed, motor and control heating time and grade is controlled according to buffered data, multirow binary map is printed into ash in a row
Spend image.
2. a kind of thermal printer gray level printing method according to claim 1, it is characterised in that: the buffer area is double
Buffer area, when first buffering area is idle, the data after instructing dissection process are put into first buffering area, when first buffering area not
Free time will be put into second buffering area if second buffering area is idle, if two buffer areas are not idle, printer is
Buffer content is printed, and next buffered data has had been prepared for, the task blocking of instruction parsing at this time；Print out task first prints
First buffering area content, first buffering area printing terminate that idle state can be set by first buffering area, then continue directly to beat
Print second buffering area data, once and first buffering area idle instruction parsing task run again, prepare next data and put
Enter in first buffering area, print out task has printed second buffering area, in this way without waiting for directly carrying out in printing first buffering area
Hold, unremitting printing can be recycled always.
3. a kind of thermal printer gray level printing method according to claim 1, it is characterised in that: the method: upper
Machine is responsible for reading 256 grades of gray level images, and 256 grades of gray level images are divided into the level Four greyscale image data of thermal printer needs；
Level Four greyscale image data indicates a picture point with 2 bit, and host computer reads 256 grades of gray level image pictures, a byte representation
One gray scale point, the size of value indicate that tonal gradation 0x00 to 0xFF is needed due to only needing to be divided into level Four gray scale by 256 grades
Carry out the quartering, it is only necessary to which the front two for taking this byte is equivalent to divided by 64,4 byte datas are merged into a byte；
Therefore a byte data indicates that 4 pixels, host computer send out a byte 0x1B, first pixel series is by the 7th, 6bit table
Show, number of greyscale levels 0, second pixel o'clock is indicated by the 5th, 4bit, number of greyscale levels 1, second pixel o'clock by the 3rd,
2bit indicates that number of greyscale levels 3, second pixel o'clock is indicated by the 1st, 0bit, number of greyscale levels 4；
The 3 row bianry images for converting data in level Four greyscale image data, i.e., change into the level Four gray scale diagram data of 2 bytes
3 byte two-value diagram datas are put into caching；
In level Four greyscale image data, use 1 indicates to want hot spot, and 0 indicates not hot spot, and 34 grades in a row of byte binary map group
The first row data are first loaded print head, then gate heating signal by grayscale image, and print head is heated in corresponding position, are reached
After setting time close heating gating signal, be then followed by load the second row two-value data, and so on load the third line two-value
Data, finally by 3 row two-value datas printing after the completion of, at this moment control motor, motor just allowed to cover a point row, in this way this
Point row just has corresponding gradation effect.
4. a kind of thermal printer gray level printing method according to claim 1, it is characterised in that: the method: upper
Machine is responsible for reading 256 grades of gray level images, and 256 grades of gray level images are divided into eight grades of greyscale image datas of thermal printer needs；
Eight grades of greyscale image datas indicate a pixel with 4 bit, and host computer, which sends a byte data, indicates 2 pixels, often
The 0bit and 4bit of a byte retain, and host computer sends out a byte 0x0A, and the 1st pixel series is by the 7th, 6,5bit table
Show, 4bit retains, number of greyscale levels 0, and the 2nd pixel is indicated by the 3rd, 2,1bit, number of greyscale levels 1；2nd picture
Vegetarian refreshments is by the 3rd, 2,1bit expression, number of greyscale levels 1；2nd pixel indicates that 0bit retains by the 3rd, 2,1bit,
Number of greyscale levels is 5；
The 7 row bianry images for converting data in eight grades of greyscale image datas, i.e., change into eight grades of gray scale diagram datas of 4 bytes
7 byte two-value diagram datas are put into caching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191020.7A CN106681673B (en) | 2016-12-21 | 2016-12-21 | A kind of thermal printer gray level printing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191020.7A CN106681673B (en) | 2016-12-21 | 2016-12-21 | A kind of thermal printer gray level printing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106681673A CN106681673A (en) | 2017-05-17 |
| CN106681673B true CN106681673B (en) | 2019-08-30 |
Family
ID=58869894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611191020.7A Active CN106681673B (en) | 2016-12-21 | 2016-12-21 | A kind of thermal printer gray level printing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106681673B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6874552B2 (en) * | 2017-06-14 | 2021-05-19 | セイコーエプソン株式会社 | Control information generation method, control information generation device, and thermal transfer device |
| CN107621929B (en) * | 2017-09-12 | 2023-07-14 | 珠海智汇网络设备有限公司 | Gray scale thermal printing method, thermal printer and readable storage medium |
| CN109605954B (en) * | 2018-12-29 | 2020-04-14 | 森大（深圳）技术有限公司 | Oneepass printing control method, device, equipment and medium |
| CN110861418B (en) * | 2019-11-14 | 2021-09-07 | 艾体威尔电子技术(北京)有限公司 | Method for printing color photo under single gray scale condition |
| CN112508762A (en) * | 2020-10-20 | 2021-03-16 | 珠海泽冠科技有限公司 | Method for realizing gray scale printing of low-voltage thermal sensitive sheet |
| CN112099740B (en) * | 2020-11-12 | 2021-03-16 | 虎丘影像（苏州）有限公司 | Image output method and device and image output equipment |
| CN113135043B (en) * | 2021-03-10 | 2022-06-24 | 厦门喵宝科技有限公司 | Watermark printing method of thermal printer, storage medium and thermal printing equipment |
| CN113535099B (en) * | 2021-05-08 | 2024-01-02 | 南京富士通电子信息科技股份有限公司 | Print head driving method and apparatus, storage medium, and electronic apparatus |
| CN114506159B (en) * | 2021-12-27 | 2023-05-16 | 珠海智汇网络设备有限公司 | Dual-color printing driving method, thermal printer, and computer-readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326403A (en) * | 1998-11-09 | 2001-12-12 | 西尔弗布鲁克研究有限公司 | Printer and methods of operation |
| CN1944052A (en) * | 2006-11-15 | 2007-04-11 | 深圳市润天智图像技术有限公司 | Multiple grey scale printing method |
| CN102205706A (en) * | 2010-03-15 | 2011-10-05 | 佳能株式会社 | Image processor, image processing method and image printing method |
| CN103192609A (en) * | 2012-01-10 | 2013-07-10 | 山东新北洋信息技术股份有限公司 | Thermal printer and control method of thermal printer |
-
2016
- 2016-12-21 CN CN201611191020.7A patent/CN106681673B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326403A (en) * | 1998-11-09 | 2001-12-12 | 西尔弗布鲁克研究有限公司 | Printer and methods of operation |
| CN1944052A (en) * | 2006-11-15 | 2007-04-11 | 深圳市润天智图像技术有限公司 | Multiple grey scale printing method |
| CN102205706A (en) * | 2010-03-15 | 2011-10-05 | 佳能株式会社 | Image processor, image processing method and image printing method |
| CN103192609A (en) * | 2012-01-10 | 2013-07-10 | 山东新北洋信息技术股份有限公司 | Thermal printer and control method of thermal printer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106681673A (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106681673B (en) | A kind of thermal printer gray level printing method | |
| JP4390287B2 (en) | Printing system, printing apparatus and control method thereof | |
| CN109150990A (en) | Take down notes sharing method, equipment and computer storage medium | |
| CN106313907A (en) | Thermal printer text printing method and thermal printer text printing system based on image conversion | |
| US7948494B2 (en) | Character rendering device, display device, and printer | |
| CN104065937B (en) | For the real time high-speed image pre-processing method of cmos image sensor | |
| CN100437460C (en) | Method and apparatus for viewing on a client data representing a document to be printed | |
| CN104375821B (en) | Message processing device, information processing method and processing equipment | |
| US8614817B2 (en) | Computer readable medium having print control program, print controller and computer executable method using the print control program | |
| CN105538939B (en) | A kind of watermark printing method and apparatus of thermal printer | |
| JP2015156204A (en) | Printer driver, printer driver print control method, printer driver print control program, and recording medium | |
| JPH11203101A (en) | Computer interface device and method for producing output data for stencil printer | |
| CN106598510A (en) | Method and device compatible with two print modes | |
| CN105745912B (en) | Image processing apparatus | |
| CN104776919A (en) | FPGA-based infrared focal planar array stripped inhomogeneous correction system and method | |
| KR100208696B1 (en) | Printer | |
| CN104394291B (en) | Endorsement scanner uni content input fixed point Method of printing based on integrating scanning and printing machine | |
| CN110861418B (en) | Method for printing color photo under single gray scale condition | |
| CN208538142U (en) | A kind of novel and multifunctional certification recognition integrated device | |
| JP2008060730A (en) | Image processor, image processing method, image processing program, and recording medium | |
| US7551298B2 (en) | Print control device with embedded engine simulation module and test method thereof | |
| CN112508762A (en) | Method for realizing gray scale printing of low-voltage thermal sensitive sheet | |
| JP2004098533A (en) | Image formation device | |
| KR20100060821A (en) | Print control method and apparatus of document | |
| JPH07323602A (en) | Printer and object drawing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |