CN107256134A - It is virtually method and apparatus, the POS terminal of computer printer by POS terminal - Google Patents
It is virtually method and apparatus, the POS terminal of computer printer by POS terminal Download PDFInfo
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- CN107256134A CN107256134A CN201710278727.XA CN201710278727A CN107256134A CN 107256134 A CN107256134 A CN 107256134A CN 201710278727 A CN201710278727 A CN 201710278727A CN 107256134 A CN107256134 A CN 107256134A
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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
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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
- G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
- G06F3/1224—Client or server resources management
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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
- G06F3/1278—Dedicated interfaces to print systems specifically adapted to adopt a particular infrastructure
- G06F3/128—Direct printing, e.g. sending document file, using memory stick, printing from a camera
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G5/00—Receipt-giving machines
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Software Systems (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Record Information Processing For Printing (AREA)
Abstract
The present invention relates to a kind of method and apparatus, POS terminal by POS terminal virtually for computer printer.Methods described is included by the first printing driving receiving printing orders, and obtains the first data to be printed according to the print command, and the first printing driving is used to provide type of printer for POS terminal printer；Driven by the described first printing and call printing servo programe that the described first data to be printed are converted to the second data to be printed for meeting POS terminal；Described second data to be printed are sent to the printer of POS terminal, so that the printer of the POS terminal is printed to the described second data to be printed.Improve the utilization rate of POS printers.
Description
Technical field
The present invention relates to computer application field, more particularly to a kind of is virtually computer printer by POS terminal
Method and apparatus, POS terminal.
Background technology
Current POS has been widely used in various payment occasions, as one of mainstream electronic channel of disbursement.
The effect of the printer of current POS terminal is only to print required consumption certificate after merchandising, to printer
For belong to that equipment is vacant, be far from reaching the printing amount allowed in printer apparatus lifetime specification, utilization rate is low.
The content of the invention
Based on this, it is necessary to for POS printer utilization rates it is low the problem of there is provided one kind by POS terminal virtually for calculate
Method and apparatus, the POS terminal of machine printer, can improve the utilization rate of POS terminal.
A kind of is virtually the method for computer printer by POS terminal, is comprised the following steps：
Receiving printing orders are driven by the first printing, and the first data to be printed, institute are obtained according to the print command
The first printing is stated to drive for providing type of printer for POS terminal printer；
Call printing servo programe to be converted to the described first data to be printed by the described first printing driving and meet POS
Second data to be printed of terminal；
Described second data to be printed are sent to the printer of POS terminal, so that the printer of the POS terminal is to institute
The second data to be printed are stated to be printed.
In one of the embodiments, methods described also includes：
By the first of acquisition the data storage to be printed under specified file directory path；
Printing servo programe is called to be read from the specified file directory path by the described first printing driving described
First data to be printed, and the described first data to be printed are converted to the second data to be printed for meeting POS terminal.
In one of the embodiments, it is described that printing servo programe is called by described first by the described first printing driving
Data to be printed, which are converted to, to be met the second data to be printed of POS terminal and includes：
Printing servo programe is called by the described first data conversion monochrome bitmap to be printed by the described first printing driving
Data, and the monochrome bitmap data are converted into dot matrix array data, the dot matrix array data meets POS ends to be described
Second data to be printed at end.
In one of the embodiments, the step of the printer that the described second data to be printed are sent to POS terminal
Suddenly include：
Described second data to be printed are sent to the print agent program of POS terminal, and pass through the print agent journey
Described second data to be printed are transferred to the printer of the POS terminal by sequence.
A kind of is virtually the method for computer printer by POS terminal, including：
The second of POS terminal wait to beat by the print agent program of POS terminal meeting of receiving that printing servo programe sends
Printing evidence, and the described second data to be printed are sent to the printer of the POS terminal；Wherein, the described second number to be printed
The first printing is driven what the first data conversion to be printed obtained was obtained according to for the printing servo programe；
Second data to be printed are printed by the printer of the POS terminal.
In one of the embodiments, the print agent program by POS terminal receives printing servo programe and sent
The data to be printed for meeting POS terminal the step of include：
The dot matrix array data that printing servo programe is sent, the dot matrix are received by the print agent program of POS terminal
Described first printing is driven the first data to be printed obtained to be converted to monochrome bit by array data for the printing servo programe
After diagram data, then obtained by the monochrome bitmap data are changed.
A kind of is virtually the device of computer printer by POS terminal, including：
Printing drive module, for providing type of printer for POS terminal printer, receiving printing orders, and according to institute
State print command and obtain the first data to be printed；
Print servo programe module, for the described first data to be printed are converted to meet the second of POS terminal wait beat
Printing evidence, the described second data to be printed is sent to the printer of POS terminal, so that the printer of the POS terminals is to institute
The second data to be printed are stated to be printed.
In one of the embodiments, the printing drive module is additionally operable to exist the first of acquisition the data storage to be printed
Under specified file directory path, and the printing servo programe module is called to read institute from the specified file directory path
The first data to be printed are stated, and the described first data to be printed are converted to the second data to be printed for meeting POS terminal.
In one of the embodiments, the printing drive module is additionally operable to call the printing servo programe module by institute
The first data conversion monochrome bitmap data to be printed are stated, and the monochrome bitmap data are converted into dot matrix array data, institute
It is second data to be printed for meeting POS terminal to state dot matrix array data.
In one of the embodiments, the printing servo programe module is additionally operable to send the described second data to be printed
To the print agent program of POS terminal, and by the print agent program the described second data to be printed are transferred to described
The printer of POS terminal.
A kind of POS terminal, including：
Print agent program module, for receiving the second number to be printed for meeting POS terminal that printing servo programe is sent
According to, and the described second data to be printed are sent to the printer of the POS terminal；Wherein, the described second data to be printed are
First printing is driven what the first data conversion to be printed obtained was obtained by the printing servo programe；
Print module, for printing the described second data to be printed.
In one of the embodiments, the print agent program is additionally operable to receive the dot matrix number that printing servo programe is sent
Described first printing is driven the first number to be printed obtained by group data, the dot matrix array data for the printing servo programe
According to being converted to after monochrome bitmap data, then obtained by the monochrome bitmap data are changed.
Above-mentioned is virtually method and apparatus, the POS terminal of printer by POS terminal, and the is obtained by the first printing driving
One data to be printed, call printing servo programe that the first data to be printed are converted to the second number to be printed for meeting POS terminals
According to the printer that the second data to be printed are sent into POS terminal is printed, and improves the utilization rate of POS printers.
Brief description of the drawings
Fig. 1 is the application scenarios schematic diagram for the method in one embodiment being virtually computer printer by POS terminal；
Fig. 2 is the flow chart for the method in one embodiment being virtually computer printer by POS terminal；
Fig. 3 is the printing flow chart of Windows operating system in one embodiment；
Fig. 4 A are the workflow diagram of print.er port monitor in one embodiment；
Fig. 4 B are figure example schematic diagram in one embodiment；
Fig. 5 is the POS terminal flow chart for the method in one embodiment being virtually computer printer by POS terminal；
Fig. 6 is that print data is transferred to the workflow diagram that POS terminal 120 is printed by one embodiment Computer 110；
Fig. 7 is the structured flowchart that POS terminal is virtually Windows print apparatus in one embodiment；
Fig. 8 is the structured flowchart for the device in one embodiment being virtually computer printer by POS terminal；
The workflow diagram that it is virtually computer printer device by POS terminal that Fig. 9 is in one embodiment.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the application scenarios schematic diagram for the method in one embodiment being virtually computer printer by POS terminal.Such as
Shown in Fig. 1, the application scenarios include computer 110 and POS terminal 120.Computer 110 can be by wired with POS terminal 120
Or communication enters row data communication.Windows operating system, (SuSE) Linux OS etc. can be installed on computer 110.
Wired mode can be the connection communications such as serial ports, USB cable, Ethernet.Communication can be the modes such as WIFI.Computer
110 can drive receiving printing orders by the first printing, and obtain the first data to be printed, described the according to the print command
One printing driving is used to provide type of printer for POS terminal printer, and printing servo is called by the described first printing driving
Program is converted to the described first data to be printed the second data to be printed for meeting POS terminal, by the described second number to be printed
According to the printer for being sent to POS terminal, so that the printer of the POS terminal 120 is beaten the described second data to be printed
Print.
Fig. 2 is the flow chart for the method in one embodiment being virtually computer printer by POS terminal.As shown in Fig. 2
A kind of is virtually the method for computer printer by POS terminal, is described with computer angle, including step 202 is to step 206.
Wherein：
Step 202, receiving printing orders are driven by the first printing, and it is to be printed according to print command acquisition first
Data, the first printing driving is used to provide type of printer for POS terminal printer.
Specifically, computer can receive the print command that user triggers by the first printing driving of installation, and according to this
Print command obtains the first data to be printed.First data to be printed can be word forms, PDF formatted datas, picture format
Data, TXT formatted datas etc..
Step 204, printing servo programe is called by the described first data conversion to be printed by the described first printing driving
For the second data to be printed for meeting POS terminal.
Specifically, printing servo programe refers to meet treating for POS terminal for data to be printed in computer to be converted to
The application program of print data.First printing is driven through function call printing servo programe.
Step 206, the described second data to be printed are sent to the printer of POS terminal, so that the POS terminals
Printer is printed to the described second data to be printed.
Specifically, the second data to be printed are sent to POS terminal by the printing servo programe of computer by rendezvous protocol
Printer printed.The rendezvous protocol refers to meet the agreement for entering row data communication between computer and POS terminal.
Above-mentioned is virtually the method for printer by POS terminal, obtains the first data to be printed by the first printing driving, adjusts
First data to be printed are converted to the second data to be printed for meeting POS terminal with printing servo programe, it is to be printed by second
The printer that data are sent to POS terminal is printed, and improves the utilization rate of POS printers.
In one embodiment, it is above-mentioned virtually also to include POS terminal for the method for computer printer：By the of acquisition
One data storage to be printed is under specified file directory path.
Specifically, user is needed before calling the first printing to drive, and configures system relevant parameter, and specify a file
Directory path, for storing the first data to be printed.For example in Windows systems, path can be set to by user：
HKEY_CURRENT_USER SOFTWARE ImagePrinter, for store the first data to be printed.In addition, can also pass through
First printing driving is installed to be automatically performed the configuration of system relevant parameter.The configuration system relevant parameter, refer to table 1.
Table 1
In one embodiment, it is above-mentioned virtually also to include POS terminal for the method for computer printer：Pass through described
One printing driving calls printing servo programe to read the described first data to be printed from the specified file directory path, and will
First data to be printed are converted to the second data to be printed for meeting POS terminal.
Specifically, the first printing driving obtains print command, and the described first data to be printed then are converted into bitmap number
According to and store it under specified file directory path.Then, the first printing driving calls printing servo programe to obtain described refer to
Determine the bitmap data in file directory path, and the described first data to be printed are converted to meet the second of POS terminal and wait to beat
Printing evidence.
Fig. 3 is the printing flow chart of Windows operating system in one embodiment.Windows print drivers are based on
Increase income (GNU License) ImagePrinter exploitation, belong to windows platform virtual printer driving classification, also
It is to say, ImagePriter is a kind of developing instrument for being used to realize virtual printer driving, the effect in printing flow is
A port monitor, and the realization of port drivers is provided.Port drivers are the first printing driving.Such as Fig. 3 institutes
Show, the printing flow of windows operating systems includes：
Step 302, print application is started.
Specifically, print application creates a device context and is drawing an object thereon, then calls GDI
Corresponding function interface is corresponding to this device context in (Graphics Device Interface GDIs)
Printer sends a print request.It is one equipment operating environment of configuration to create a device context.GDI is Windows
The GDI of offer, it is a core component of Windows systems, is the heart of Windows graphing capabilitys, it
The information that major function is responsible between Windows systems and mapping program is exchanged.All graph and image processings and font
Handle, in all realization and GDI such as color management function.
Step 304, device context is created.
Specifically, GDI function calls corresponding printed drivers handles print request.
Step 306, GDI GDI calls corresponding printed driver.
Specifically, print driver creates a print job, and calls GDI functions to pass through printing interface DLL (DLL
For interface document) and printing curve DLL result is returned into GDI.
Step 308, GDI functions call print spooling system.
Wherein, the print spooling technology of Windows operating system is primarily referred to as when host-processor is passed to external equipment
When sending data, in order to reduce take host-processor time (because the speed of port is typically well below the speed of processor) and
Using it is a kind of additional storage (being usually hard disk) is used as the buffer storage of port, specific transmission work by
Backstage is come a kind of technology for handling.
Step described above, is the intrinsic flow of printer driver developing Windows.I.e. if on Windows platforms
Printed driver is developed, then needs to realize above step.
Step 310, print spooling system calls language monitor.Language monitor is mainly used in the double of back printer
To communication, the state of monitor printer obtains and handles some events.
Specifically, printing off line calls print request processor so as to beating that print job is sent into application program specifies
On print machine.Then, print job is sent to local printing supplier by print request processor, if the type of print job is
Indirect printing, then print job is just stored on disk by local printing supplier with the form of original spool file,
And later printing fragment is constantly attached in spool file, until application call, EndDoc functions are terminated
Untill one print job.Above step 302 can repeatedly, for producing a complete spool text to step 310
Part.Following local printing supplier starts a background thread, and printing main thread is according to printing VSE/POWER resource
Monitoring situation, select one it is optimal at the time of trigger the resolving of spool file.Now, printing main thread will be called
StartDocPort functions start a thread in print processor to start to parse work.Printer processor thread dispatching
ReadPrinter is to activate local printing supplier to read the print spooling file of the generation from disk.Meanwhile, beat
Print processor also have invoked WritePrinter functions to activate the language monitor of printing machine operation so that data are passed through into thing
Reason port is sent on corresponding printer.
Step 312, language monitor calls port monitor.
Specifically, print language monitor calls the function of port monitor to send data to printer.Port-monitoring
Device controls the communication between printer and physical port.Its effect is to be transmitted to port device or receive number from port device
According to (some port monitors only have transmitting function).General, operating system can provide port monitor to support some types
Port (LPT, COMN etc.) used for printer, at this moment avoid the need for developer and the port monitor of oneself be provided.But
If the port type of printer is not given tacit consent in operating system in the port type list supported, developer is needed to write certainly
Oneself print.er port monitor is simultaneously installed with printed driver.Wherein, ImagePrinter is in printing flow
Effect is a port monitor, while providing the realization of port drivers.
Fig. 4 A are the workflow diagram of print.er port monitor in Fig. 3.In realization in port monitor, by configuring
WriteFile, realizes the function that bitmap data is write under specific file directory path.As shown in Figure 4 A, print.er port is supervised
The workflow of visual organ includes：
Step 404, open printing port.
Specifically, print spooling 402 first has to call the OpenPort functions of port monitor, the main work(of the function
It can be opening a port and return to a handle for identifying the port.In the subsequent calls of spool, the handle using as
The input parameter of other processing functions is used.Handle is the basis of whole Windows programmings.One handle refers to one used
The long numerical value of unique 4 bytes of integer value, i.e., one (being 8 bytes in 64 programs), comes different right in identification application
As with it is similar in different examples, such as, a window, button, icon, scroll bar, output equipment, control or file
Deng.
Step 406, print job is started.
Specifically, after a port is opened, print spooling then calls StartDocPort functions to start one
Individual print job.StartPort functions are mainly by calling Windows API (Application Programming
Interface application programming interfaces) provide CreateFile functions come set up one and kernel port driving between
Data link.
Step 408, judge still to write data to printing is machine-readable.
Specifically, after data link is set up, print spooling can carry out bidirectional operation as needed, one kind be to
Printer writes data, and print spooling first calls the WritePort functions of port monitor and then can repeatedly adjusted in this case
The WriteFile functions provided with Windows API send data to be driven to kernel port.In the described first printing driving
In, by configurable write inbound port 410, and call WriteFile functions, to specified file path catalogue under write bitmap number
According to.Another be to printing machine-readable data, now print spooling first call the ReadPort functions of port monitor then
The ReadFile functions for recalling Windows API offers drive reading hardware information from kernel port.
Step 412, data are transmitted.
Specifically, write to printer after data, print spooling can call GetPrinterDataFromPort letters
Number, the main function of the function is by calling the DeviceloControl functions that Windows API are provided to be beaten come final realize
Print the data transfer between driver and the driving of kernel port.
Step 414, printing flow is completed.
Specifically, after above operation is completed, print spooling calls EndDocPort functions to terminate a printing work
Industry.The main function of the function is Shen in the data link and StartDocPort functions for discharge the foundation of CreateFile functions
All system resources please.
Step 416, judge whether also have operation to be printed in print queue.
Specifically, after a print job is completed as procedure described above, print spooling is checked and this port
Check that having other files or not needs printing in connected print queue.If so, then program is returned to
StartDocPort functions repeat said process, if not provided, print spooling just closes this port.
Step 418, close port.
Specifically, the ClosePort functions of port monitor are used for close port.It is being to put that the main function of the function, which is,
All system resources applied in OpenPort functions.
In one embodiment, it is described to call printing servo programe to wait to beat described first by the described first printing driving
The second data to be printed that printing meets POS terminal according to being converted to include：Printing servo is called by the described first printing driving
Program is converted to dot matrix array by the described first data conversion monochrome bitmap data to be printed, and by the monochrome bitmap data
Data, the dot matrix array data is second data to be printed for meeting POS terminal.
Specifically, called by the described first printing driving after printing servo programe, printing servo programe will specify text
The first data to be printed are obtained under part directory path.Judge whether the first data to be printed are monochrome bitmap data simultaneously, if
First data to be printed are polyenergetic bitmap data, are first converted to bitmap data after monochrome bitmap data, then by monochrome bit
Diagram data is converted to dot matrix array data, and the dot matrix array data is second data to be printed for meeting POS terminal.Its
In, the dot matrix array data includes initial character, the byte number and graph data of each row figure.Wherein：
Initial character [1Byte], the line number for representing figure.
Byte number [2Byte, high byte is preceding], the graph data [width of a line of the first row figure of the first row figure
For 384 points].
The byte number [2Byte, high byte is preceding] of second row figure.The like.The third line, fourth line etc..
Wherein, there are data (stain) on 1 expression position, 0 represents no data (white point) on the position, for example：
As shown in Figure 4 B, the pixel of figure is 98*44 pixels
Array after conversion is：
The first character section 0x2C of dot matrix array is that the line number (namely height) of expression image is 44.That is 0X2C is ten
Senary, is converted to the decimal system for 44, i.e. 44 rows.By that analogy.
In one embodiment, it is described to wrap the step of described second data to be printed are sent into the printer of POS terminal
Include：Described second data to be printed are sent to the print agent program of POS terminal, and by the print agent program by institute
State the printer that the second data to be printed are transferred to the POS terminal.
Specifically, printing servo programe is converted to monochrome bitmap data after dot matrix array data, by arranging communication association
View is sent to POS terminal.Arrange communications protocol and use LRC (Longitudinal Redundancy Check lonitudinal redundances schools
Test) authentication mechanism.In dot matrix array data after servo programe is transferred to the print agent program of POS terminal, it can carry out first
LRC is verified, it is ensured that the accuracy and integrality of dot matrix array data, if dot matrix array data is wrong, the printing generation of POS terminal
Reason program will return to an error code and give printing servo programe；Printing servo programe will resend dot matrix array data to
The print agent program of POS terminal；Correct complete data are transferred to the printing of the POS terminal by last print agent program
Machine, completes print out task.Wherein, the agreement communications protocol includes data head, data length, data content, LRC checkings, sound
Should wrap, response bag data head, response bag data content, LRC checking etc..Specifically, when sending array data, data are first sent
Head, retransmits data content, and the definition of data head form refer to table 2.
Table 2
Wherein, bebinning character represents the opening flag of data, and data header information includes：The length of packet, device type
The index information of information, the type of packet, and order, the initialization for transmitting data.Wherein, data content form is determined
Justice refer to table 3.
Table 3
Data packet length is the length of the whole data in addition to beginning character, and when receiving terminal is received, data are received first
Packet length, then receives remaining data again.Type of data packet and command index include parsing form, and computation scheme is really counted
According to content, the information such as data radical.LRC is data check, for the XOR value of other data in addition to bebinning character, it is ensured that data
Accuracy.The specific form of data content is as follows, if parameter is integer, refer to using 4 byte representations (high position is preceding)
Table 4.
Table 4
| Parameter 1 | Parameter 2 | Parameter 2 | 。。。 | Parameter n |
In data successful print or after data transmission procedure is finished, POS terminal will return information watched to printing
Program is taken, its definition for returning to response bag refer to table 5.
Table 5
Wherein bebinning character represents the opening flag of data, and data header information includes：The length of packet, device type letter
The index information of breath, the type of packet, and order, the initialization for transmitting data, data content form definition please be joined
According to table 6.
Table 6
Packet each several part implication is identical with above-mentioned packet implication, and data content has more an error code, if wrong
Code (ErrorCode) is LRC check errors by mistake, or response bag check errors itself, then PC ends resend a number
According to bag.Error code is defined as follows：
Above-mentioned the step of described second data to be printed are sent into the printer of POS terminal, communications protocol is tested using LRC
Card mechanism, it is ensured that the integrality and correctness of dot matrix array data, allows needed for POS printers accurately print user
The data wanted.
Fig. 5 is the flow chart for the POS terminal method in another embodiment being virtually computer printer by POS terminal.Such as
Shown in Fig. 5, it is virtually the method for computer printer by POS terminal, is described with POS terminal angle, including step 502 and step
504.Wherein：
Step 502, POS terminals are met by what the print agent program of POS terminal received that printing servo programe sends
Second data to be printed, and the described second data to be printed are sent to the printer of the POS terminal；Wherein, described second
First printing is driven what the first data conversion to be printed obtained was obtained by data to be printed for the printing servo programe.
Step 504, second data to be printed are printed by the printer of the POS terminal.
In one embodiment, the print agent program by POS terminal receives the symbol that printing servo programe is sent
The step of data to be printed for closing POS terminal, includes：
The dot matrix array data that printing servo programe is sent, the dot matrix are received by the print agent program of POS terminal
Described first printing is driven the first data to be printed obtained to be converted to monochrome bit by array data for the printing servo programe
After diagram data, then obtained by the monochrome bitmap data are changed.
By above step, the data that print data is converted to suitable printer printing are completed, and ensure that data
Complete and correctness, successfully by POS printers virtually be computer printer, improve the utilization rate of POS printers.
In an example, the described second data to be printed are sent to by the print agent program by POS terminal
The step of POS terminal printer, includes：
The print agent program by POS terminal receive printing servo programe send meet treating for POS terminal
After print data, the verification to the second data to be printed is carried out, correct the second complete data to be printed are then sent to POS
Terminal printer is printed.
Specifically, the print agent program monitoring FPDP of POS terminal, when POS terminal print agent program monitoring is to beating
After the dot matrix array data that print servo programe is sent, POS terminal print agent program can be second to dot matrix array data first
Data to be printed carry out LRC checkings, judge whether dot matrix array data is correct and complete, if correctly, described second is waited to beat
Printing comes out the second data-printing to be printed according to POS terminal printer is sent to, and then sending one to computer terminal has printed
Into return value, and complete print out task.If the second data to be printed are incorrect or imperfect, POS terminal print agent journey
Sequence can send an error code to computer terminal, and computer terminal printing servo programe will resend the second data to be printed
To POS ends print agent program, it is transferred to POS terminal printer until the second data to be printed are correct complete and completes printing
Task.
It is above-mentioned from POS terminal describe be virtually by POS terminal computer printer method, by rendezvous protocol by second
Data to be printed are sent to POS terminal, and the mode that most data-printing comes out at last, it is ensured that the accuracy and integrality of data,
User is set to print correct data by POS terminal printer.
Fig. 6 is that print data is transferred to the workflow diagram that POS terminal 120 is printed by one embodiment Computer 110.
As shown in fig. 6, being provided with the first printing driving and printing servo programe on computer 110.Printing is installed in POS terminal 120
Agent and printer.Described with computer angle, print data is transferred to POS terminal 120 and printed by computer 110
Process include：
Step 602, printing driving selection instruction is received, and obtains the first printing driving.
Specifically, printing driving selection instruction can select POS terminal printer type institute to receive user at printing interface
The instruction of generation.Selection instruction is driven to obtain the first printing driving according to the printing.First printing driving can be whole suitable for POS
Hold the driver of printer.
Step 604, the first data to be printed are sent under specified file directory path by the first printing driving, and search tune
With printing servo programe.
Specifically, first printing driving by the first data conversion to be printed into bitmap data, and by bitmap data send to
Under the file directory path specified, and call printing servo programe.
Step 606, the first data to be printed are converted to dot matrix array data, dot matrix array number by the printing servo programe
Sent according to the as second data to be printed, and by the second data to be printed to the print agent module of POS terminal, the printing end is beaten
Print proxy module is the program that POS terminal is used for receiving computer terminal.
Specifically, the first data to be printed that computer terminal printing servo programe will be obtained under specified file directory path,
Whether the bitmap data for then judging the first data to be printed is monochrome bitmap data, is then converted to monochrome bitmap data a little
Battle array array, dot matrix array is the described second data to be printed, then sends the second data to be printed to POS by rendezvous protocol
The print agent module at end.According to the POS terminal print agent program by monitoring PORT COM, obtain described in changed and treated
Print data, and call POS printers；According to the POS printers, the data to be printed are printed.
Fig. 7 is the structured flowchart for the device in one embodiment being virtually computer printer by POS terminal.Such as Fig. 7 institutes
Show, a kind of is virtually the device of computer printer by POS terminal, is described with computer angle, including printing drive module 702
With printing servo programe module 704.Wherein：
Printing drive module 702 is used to provide type of printer for POS terminal printer, receiving printing orders, and according to
The print command obtains the first data to be printed.
Printing servo programe module 704, which is used to be converted to the described first data to be printed, to be met the second of POS terminal and treats
Print data, the described second data to be printed is sent to the printer of POS terminal, so that the printer pair of the POS terminal
Second data to be printed are printed.
In one embodiment, the printing drive module is additionally operable to specifying the first of acquisition the data storage to be printed
Under file directory path, and the printing servo programe module is called to read described the from the specified file directory path
One data to be printed, and the described first data to be printed are converted to the second data to be printed for meeting POS terminal.
In one of the embodiments, the printing drive module is additionally operable to call the printing servo programe module by institute
The first data conversion monochrome bitmap data to be printed are stated, and the monochrome bitmap data are converted into dot matrix array data, institute
It is second data to be printed for meeting POS terminal to state dot matrix array data.
In one of the embodiments, the printing servo programe module is additionally operable to send the described second data to be printed
To the print agent program of POS terminal, and by the print agent program the described second data to be printed are transferred to described
The printer of POS terminal.
Fig. 8 is the internal structure block diagram of POS terminal in one embodiment.As shown in figure 8, a kind of POS terminal includes printing
Broker module 802 and print module 804.Wherein：
Print agent program module 802 is used to receiving that printing servo programe to send meets the second to be printed of POS terminal
Data, and the described second data to be printed are sent to the printer of the POS terminal；Wherein, the described second data to be printed
The first printing is driven what the first data conversion to be printed obtained was obtained for the printing servo programe.
Print module 804 is used to print the described second data to be printed.
In one embodiment, the print agent program is additionally operable to receive the dot matrix array number that printing servo programe is sent
According to the described first printing is driven the first data to be printed obtained to turn by the dot matrix array data for the printing servo programe
It is changed to after monochrome bitmap data, then obtained by the monochrome bitmap data are changed.
Referring to Fig. 9, Fig. 9 is the workflow diagram that POS terminal is virtually computer printer system in an embodiment, should
System can include：
Printing drive module 902, for selecting POS printers printing driving and obtaining user's print command, will wait to beat
Printing evidence is sent under specified file directory path, and printing servo programe is called in lookup.
Servo programe module 904 is printed, for obtaining data to be printed, and judges whether data to be printed are monochrome bitmap
Data, if not monochrome bitmap data, convert thereof into after monochrome bitmap data, monochrome bitmap data are converted into dot matrix number
Group data, and data are sent to POS terminal device by rendezvous protocol.
Whether just print agent module 906, receive the data that printing servo programe module is sent, and judge data
Really, completely., will be again to computer terminal printing servo programe request dot matrix array data, then by dot matrix if data are wrong
Array data is sent to print module.
Print module 908, receives dot matrix array data, and dot matrix array data is printed, and completes print out task, and
Feed back print result.
Above-mentioned is virtually the method for printer by POS terminal, and by the printing procedure merging with computer terminal, user need not
Do extra work just can print simple document using POS printers.And can be supported between computer terminal and POS
A variety of on-link mode (OLM)s, it is not limited to traditional parallel port cable on-link mode (OLM), computer terminal can use serial ports, USB cable, with
The too mode such as net, WiFi links POS printers and carrys out printed document, improves the utilization rate of POS printers.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a non-volatile computer and can be read
In storage medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage is situated between
Matter can be magnetic disc, CD, read-only memory (Read-Only Memory, ROM) etc..
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (12)
1. a kind of is virtually the method for computer printer by POS terminal, it is characterised in that comprised the following steps：
Receiving printing orders are driven by the first printing, and the first data to be printed, described the are obtained according to the print command
One printing driving is used to provide type of printer for POS terminal printer；
Call printing servo programe to be converted to the described first data to be printed by the described first printing driving and meet POS terminal
The second data to be printed；
Described second data to be printed are sent to the printer of POS terminal, so that the printer of the POS terminal is to described
Two data to be printed are printed.
2. according to the method described in claim 1, it is characterised in that methods described also includes：
By the first of acquisition the data storage to be printed under specified file directory path；
Printing servo programe is called to read described first from the specified file directory path by the described first printing driving
Data to be printed, and the described first data to be printed are converted to the second data to be printed for meeting POS terminal.
3. according to the method described in claim 1, it is characterised in that described that printing servo is called by the described first printing driving
Program, which is converted to the described first data to be printed, to be met the second data to be printed of POS terminal and includes：
Printing servo programe is called by the described first data conversion monochrome bitmap data to be printed by the described first printing driving,
And the monochrome bitmap data are converted into dot matrix array data, the dot matrix array data meets POS terminal to be described
Second data to be printed.
4. according to the method described in claim 1, it is characterised in that described that described second data to be printed are sent to POS ends
The step of printer at end, includes：
Described second data to be printed are sent to the print agent program of POS terminal, and will by the print agent program
Second data to be printed are transferred to the printer of the POS terminal.
5. a kind of is virtually the method for computer printer by POS terminal, it is characterised in that including：
The second number to be printed for meeting POS terminal that printing servo programe is sent is received by the print agent program of POS terminal
According to, and the described second data to be printed are sent to the printer of the POS terminal；Wherein, the described second data to be printed are
First printing is driven what the first data conversion to be printed obtained was obtained by the printing servo programe；
Second data to be printed are printed by the printer of the POS terminal.
6. method according to claim 5, it is characterised in that the print agent program by POS terminal is received and beaten
What print servo programe was sent includes the step of meeting the data to be printed of POS terminal：
The dot matrix array data that printing servo programe is sent, the dot matrix array are received by the print agent program of POS terminal
Described first printing is driven the first data to be printed obtained to be converted to monochrome bitmap number by data for the printing servo programe
According to rear, then obtained by the monochrome bitmap data are changed.
7. a kind of is virtually the device of computer printer by POS terminal, it is characterised in that including：
Printing drive module, for providing type of printer for POS terminal printer, receiving printing orders, and beaten according to described
Print instruction obtains the first data to be printed；
Servo programe module is printed, the second number to be printed of POS terminal is met for the described first data to be printed to be converted to
According to the described second data to be printed being sent to the printer of POS terminal, so that the printer of the POS terminal is to described
Two data to be printed are printed.
8. device according to claim 7, it is characterised in that the printing drive module is additionally operable to treat the first of acquisition
Print data is stored under specified file directory path, and calls the printing servo programe module from the specified file mesh
Record reads the described first data to be printed in path, and the described first data to be printed are converted to meet the second of POS terminal
Data to be printed.
9. device according to claim 7, it is characterised in that the printing drive module is additionally operable to call the printing to watch
Program module is taken to be converted to a little by the described first data conversion monochrome bitmap data to be printed, and by the monochrome bitmap data
Battle array array data, the dot matrix array data is second data to be printed for meeting POS terminal.
10. device according to claim 7, it is characterised in that the printing servo programe module is additionally operable to described
Two data to be printed are sent to the print agent program of POS terminal, and wait by the print agent program to beat described second
Printing is according to the printer for being transferred to the POS terminal.
11. a kind of POS terminal, it is characterised in that including：
Print agent program module, for receiving the second data to be printed for meeting POS terminal that printing servo programe is sent, and
Described second data to be printed are sent to the printer of the POS terminal；Wherein, the described second data to be printed are beaten to be described
First printing is driven what the first data conversion to be printed obtained was obtained by print servo programe；
Print module, for printing the described second data to be printed.
12. POS terminal according to claim 11, it is characterised in that the print agent program is additionally operable to receive printing
The dot matrix array data that servo programe is sent, the dot matrix array data drives the described first printing for the printing servo programe
Dynamic the first data to be printed obtained are converted to after monochrome bitmap data, then obtained by the monochrome bitmap data are changed
's.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710278727.XA CN107256134B (en) | 2017-04-25 | 2017-04-25 | Method and device for virtualizing POS terminal as computer printer and POS terminal |
| PCT/CN2017/102215 WO2018196262A1 (en) | 2017-04-25 | 2017-09-19 | Method for virtualizing pos terminal into computer printer, computer, pos terminal, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710278727.XA CN107256134B (en) | 2017-04-25 | 2017-04-25 | Method and device for virtualizing POS terminal as computer printer and POS terminal |
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| CN107256134A true CN107256134A (en) | 2017-10-17 |
| CN107256134B CN107256134B (en) | 2020-01-21 |
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| CN201710278727.XA Active CN107256134B (en) | 2017-04-25 | 2017-04-25 | Method and device for virtualizing POS terminal as computer printer and POS terminal |
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| WO (1) | WO2018196262A1 (en) |
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| CN112035074A (en) * | 2019-06-04 | 2020-12-04 | 中兴通讯股份有限公司 | Printing implementation method, device and system and storage medium |
| CN112486429A (en) * | 2020-11-26 | 2021-03-12 | 四川长虹电器股份有限公司 | Method for automatically configuring printer by terminal |
| CN112925487A (en) * | 2021-02-05 | 2021-06-08 | 北京互金新融科技有限公司 | Printing method and device of target content, storage medium and electronic device |
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Also Published As
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| CN107256134B (en) | 2020-01-21 |
| WO2018196262A1 (en) | 2018-11-01 |
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