CN109901803B - Additional printing processing method for micro printer and computer readable storage medium - Google Patents

Abstract

The invention discloses an additional printing processing method for a micro printer and a computer-readable storage medium, comprising the following steps: S1, specifying and reading a BMP picture to be additionally printed; S2, dividing a dot matrix; S3, filling an instruction header; S4, splicing and generating file; S5, call the additional print interface. The invention has convenient operation, high efficiency and good flexibility, and effectively simplifies the pursuit of content in BMP format.

Description

Micro-printer additional print processing method and computer-readable storage medium

technical field

The invention relates to an additional printing processing method and a computer-readable storage medium of a micro-printer, belonging to the technical field of micro-printers.

Background technique

With the development of big data-related technologies, more and more cases of consumer information collection and processing have emerged. Among them, the data collection and processing scheme of micro-receipt printers is currently the most widely used. The data processing process of a micro-printer can be divided into two parts according to the transmission direction of the information flow:

In the acquisition part, the external device uploads the printer-side data to the local or server and processes it.

In the chasing part, the local software or server will download the content that needs to be additionally printed to the micro-printer through the external device, and execute the printing.

Among them, for the collection and processing scheme in which the additional print content is in BMP format (two-dimensional code, merchant logo, character painting, etc.), the common follow-up steps for such schemes are known in the industry (as shown in Figure 1) :

Step 1. Obtain in advance the model of the micro-printer connected to the external device and the BMP picture that needs to be additionally printed;

Step 2. Use the micro-printer of the specific model to print and collect the content that needs to be additionally printed;

Step 3. Send the data files collected in step 2 to the external device through the server or local supporting software when the chase is needed.

Step 4. The external device downloads the data to the micro-printer and performs additional printing.

Its defects are:

The efficiency is low. Every time the content of the chase is changed, the printing and collection operations need to be performed before the official printing task, which is relatively cumbersome and will affect the normal billing efficiency in some scenarios of actual business activities;

The flexibility is poor, the content of additional printing can only use the configuration set last time by the printer, and the layout information such as font and ink dot density cannot be changed, which cannot meet some customization requirements.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides an additional printing processing method and a computer-readable storage medium for a micro-printer, which are convenient in operation, high in efficiency, and good in flexibility, and effectively simplify the pursuit of content in BMP format.

The technical solution for solving the above problem is: a method for additionally printing a micro-printer, which includes the following steps:

S1. Specify and read the BMP picture to be chased;

S2, divide the lattice;

S3, fill the command header;

S4, splicing to generate a file;

S5, calling the additional print interface.

Further, the specific method for realizing S1 is to manually import the monochrome BMP picture to be chased and read in the supporting software or the preset options of the server interface.

Or, in the preset options of the supporting software or server interface, the user specifies the source string data of the QR code, generates the QR code, saves it as a monochrome BMP image, and reads it.

Further, the specific method for realizing S2 is to calculate the dot matrix width according to the acquired width and height byte parameters of the BMP picture after filling in four bytes. With the default value of the algorithm as the lattice height, the read BMP pixels are divided into several complete lattice segments and one non-full-length lattice segment;

Or, according to the acquired BMP picture width and height byte parameters, calculate the dot matrix width after four-byte filling, directly take the height of the original picture as the dot matrix height, and store the read BMP pixels as a dot matrix segment .

Further, the specific method for realizing S3 is that the user selects the connected model in the preset printer brand in the software or server interface implanted with this algorithm, and then selects the typesetting parameters such as printing point density, indentation distance, and paper feeding length; the algorithm is based on The printer model calls the corresponding preset command system to generate the print function-related command header, and then modifies the typesetting function-related command header according to the incoming parameters;

Alternatively, the algorithm generates various command headers using the recorded command system and typesetting parameters used in the previous print.

Further, the specific method for implementing S4 is to create a blank file, fill the printer parameter setting command header to the beginning of the file, then fill in each print-related command header and dot matrix data in turn, and finally fill in the print, paper, and reset command headers.

Further, the specific method for implementing S5 is to call the supporting software or the server chase-printing interface, send the generated printer instruction file to the micro-printer through the external device, and execute the chase-printing operation.

A computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a main control module, implements the steps of any one of the above-mentioned methods.

The advantages of the present invention are: the operation is convenient, when additional printing is required, the BMP picture can be automatically downloaded to the micro-printer by the relevant interface of the server or local supporting software for additional printing, and the normal commercial billing plan does not need to be interrupted when the additional printing content is changed ;

The layout is personalized. The present invention reserves parameter interfaces such as printing font setting, ink dot density, paper feeding distance, indentation length, etc. The user can customize the typesetting style of the content to be typed, and at the same time, it will not affect the subsequent normal billing format. Retain the original bill layout information while highlighting the content of the chase;

Function integration, the present invention integrates the function code of the two-dimensional code generated and saved as a BMP monochrome image, the user only needs to specify the source character information of the two-dimensional code to automatically generate the two-dimensional code image and send it to the relevant interface, which further simplifies the User action.

The present invention will be described in further detail below with reference to the accompanying drawings.

Description of drawings

1 is a schematic diagram of a method for additionally printing a printer in the prior art;

Fig. 2 is the principle diagram of the additional printing processing method of the printer of the present invention;

Fig. 3 is the schematic flow chart of the present invention;

FIG. 4 is a specific operation flow chart of the present invention.

Detailed ways

In order to deepen the understanding of the present invention, the present invention will be described in further detail below with reference to the embodiments and the accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

As shown in Figure 2-4, the additional print processing method of the micro printer includes the following steps:

S1. Specify and read the BMP picture to be chased.

Specifically: in the preset options of the supporting software or the server interface, the user manually imports the monochrome BMP picture to be chased and reads it.

Or, in the preset options of the supporting software or server interface, the user specifies the source string data of the QR code, generates the QR code, saves it as a monochrome BMP image, and reads it.

S2, divide the lattice.

Specifically: According to the acquired BMP picture width and height byte parameters, the dot matrix width is calculated after four-byte padding. With the default value of the algorithm as the lattice height, the read BMP pixels are divided into several complete lattice segments and one non-full-length lattice segment.

Or, according to the obtained BMP picture width and height byte parameters, the dot matrix width is calculated after four-byte padding. Directly take the height of the original image as the lattice height, and store the read BMP pixels as a lattice segment.

S3. Fill the instruction header.

Specifically: the user selects the connected model in the preset printer brand in the software or server interface implanted with this algorithm, and then selects the typesetting parameters such as printing point density, indentation distance, and paper feeding length. The algorithm calls the corresponding preset command system according to the printer model, generates the command header related to the printing function, and then modifies the command header related to the typesetting function according to the incoming parameters.

Alternatively, the algorithm generates various command headers using the recorded command system and typesetting parameters used in the previous print.

S4, splicing to generate a file.

Specifically: create a blank file, fill the printer parameter setting command header to the beginning of the file, then fill in the print-related command headers and dot matrix data in turn, and finally fill in the print, paper, and reset command headers.

S5, calling the additional print interface.

Specifically: calling the supporting software or the server chasing printing interface, sending the generated printer instruction file to the micro-printer through the external device, and executing the chasing printing operation.

Example 1: Users directly import BMP pictures:

According to the algorithm preset or the type of the micro-printer command system returned after the collection operation is completed, the command code segment for the start of the chase file, the print function and the end of the file is generated.

The default value of this algorithm is high, the number of horizontal bytes of the source BMP picture is width, the pixels after inversion processing are divided into several lattices, and the width and height parameters of each lattice are filled in the corresponding print function command code segment.

Fill the corresponding command into the initial command code segment according to the typesetting parameters selected by the user.

Create an instruction file, splicing each command code segment and the corresponding dot matrix, and fill it into the instruction file.

Call the supporting software or the chase interface of the server, download the instruction file to the micro-printer and perform additional printing operations.

Example 2: Use the QR code generation function to import BMP pictures:

Generate a QR code from a user-specified string.

Save the generated QR code as a BMP monochrome image.

Read the generated BMP file to obtain pixel data.

Jump to the micro-printer command system type that is preset according to the algorithm or returned after the collection operation, and generate the start, print function and end command code segment of the chase file.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (6)

1. The method for additionally printing the micro printer is characterized by comprising the following steps of:

s1, appointing and reading a BMP picture to be chased;

s2, dividing the lattice, specifically: calculating to obtain the dot matrix width after four-byte completion according to the width and height byte parameters of the acquired BMP picture, and dividing the read BMP pixel points into dot matrix sections by taking an algorithm default value or the height of the original picture as the dot matrix height;

s3, filling the command header, specifically: selecting the model of the connected printer and the typesetting parameters; calling a corresponding preset instruction system according to the printer model to generate a printing function related instruction head, and modifying the typesetting function related instruction head according to the input parameters;

or, using the recorded instruction system and typesetting parameters for the previous single printing to generate various instruction headers;

s4, splicing to generate a file, which specifically comprises the following steps: creating a blank file, filling a printer parameter setting instruction head to the beginning of the file, then sequentially filling all printing related instruction heads and dot matrix data, and finally filling a printing, paper cutting and command resetting head;

and S5, calling an additional printing interface.

2. The additional printing processing method of the micro printer according to claim 1, wherein the specific method for implementing S1 is that in the preset options of the matching software or the server interface, the user manually imports and reads the monochrome BMP picture to be chased;

or in the matched software or the preset options of the server interface, the user designates the two-dimensional code source character string data, generates the two-dimensional code, stores the two-dimensional code as the monochrome BMP picture and reads the monochrome BMP picture.

3. The method of claim 1, wherein the step of implementing S2 is to calculate the dot matrix width by four-byte completion according to the width-height byte parameter of the BMP picture; dividing read BMP pixel points into a plurality of complete lattice sections and a non-full-length lattice section by taking an algorithm default value as the height of the lattice;

or, according to the acquired BMP picture width and height byte parameters, calculating to obtain the dot matrix width after four-byte completion, and directly taking the height of the original picture as the dot matrix height to store the read BMP pixel points as a dot matrix section.

4. The method for additional printing processing of a micro printer as claimed in claim 1, wherein the specific method for implementing S3 is to select the connected model from the software embedded with the algorithm or the printer brand preset on the server interface, and then select the layout parameters such as the density of the printing dots, the setback distance, the paper feeding length, etc.

5. The method for additional printing processing of a micro printer according to claim 1, wherein the specific method for implementing S5 is to call a companion software or a server tracing interface, send the generated printer command file to the micro printer through an external device, and execute the tracing operation.

6. A computer-readable storage medium on which a computer program is stored, the computer program being characterized by implementing the steps of the additional print processing method for a micro printer according to any one of claims 1 to 5 when executed by a main control module.

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