CN114296807A - Automatic printer installation and identification method based on USB communication and computer medium - Google Patents
Automatic printer installation and identification method based on USB communication and computer medium Download PDFInfo
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Abstract
The invention belongs to the technical field of printing equipment, and particularly discloses an automatic printer installation and identification method based on USB communication and a computer medium. The core idea of the technical scheme is that the printer monitor is created to detect the connection state of the equipment and install the driver, so that the automatic installation and identification of the printer driver are realized.
Description
Technical Field
The invention belongs to the technical field of printing equipment, and relates to a printer automatic installation and identification method based on USB communication and a computer medium.
Background
With the increasing expansion of the demand of the internet of things identification technology, the identification printer industry rises rapidly and forms a market environment with intense competition gradually. As an important component of the field of identification technology, label printers are responsible for the printout of identification information, such as: information carriers such as two-dimensional codes, bar codes, RFID, pictures, characters and the like. The label printer is internally provided with rich peripheral interfaces which can be interconnected and communicated with a computer or mobile equipment, and a user can control printing through application programs such as editing software, a webpage, a mobile phone APP and the like.
At present, most customers are still used to control printers by using computers based on Windows operating system: the user connects the printer to the computer through the USB data line, installs the corresponding driver, and realizes the control access of the application program to the printer.
However, with the popularization of label printers, the usage scenarios of users become more and more complex, and until now, the usage scenarios of users for label printer drivers are roughly divided into three categories: the first type is a single device operation mode-a user requires only one fixed drive to be installed to control one printer; the second type is a multi-device operation mode, namely after a user requires to install a drive, the drive can detect the access of a new printer and automatically install the new drive, so that one-to-one mapping correlation between the drive and the printer is established; the third type is a fixed driver quantity mode, in which a user requires that drivers can be installed remotely, the drivers can detect the access of a new printer and install the drivers automatically, the name of each driver can be customized, and when the number of the drivers reaches an upper limit value, the drivers are not established for the newly accessed printer any more, but the new printer is allowed to be bound with the existing drivers.
At present, most of label printer manufacturers of domestic brands do not have the capability of developing label printer drivers, the U.S. seagull technology is the largest label printer driver provider in China, and research shows that printer driver installation technologies provided by seaeurope all require manual participation of users, for example: the installation process requires the user to select the product model, connect the USB data line, select the communication interface mode, and the like. Because the installation program needs manual participation, the requirement of remote automatic batch installation cannot be met, and when a new printer is connected, a new copy is automatically created, the application system cannot automatically identify the new copy, and the name of the new copy needs to be manually modified so as to realize the binding of the printer and the application system. The parameters of the printer attributes of the newly created copy are default values, which results in the user needing to manually reset the relevant printer attribute parameters; when a user changes new equipment for many times, the printer system has a plurality of zombie driving copies; when a printer is replaced, it is not possible to bind a new device to an existing printer driver.
In order to meet the requirements of application scenes, the invention provides an automatic printer installation driving and identifying method based on USB communication.
Disclosure of Invention
The invention aims to provide a printer automatic installation and identification method based on USB communication and a computer medium, which realize automatic installation and identification of a printer.
In order to achieve the purpose, the basic scheme of the invention is as follows: a printer automatic installation and identification method based on USB communication comprises the following steps:
setting a configuration file in an installation package, and acquiring specific requirements of a user, wherein the specific requirements are printer installation and identification in a single-equipment mode or printer installation and identification in a multi-equipment mode;
running an installation program by using the installation package, registering a maintenance service program and installing a printer monitor;
detecting the connection state of the printer and loading a driver by using a printer monitor;
when the printer is connected to the computer, the printer monitor will be dispatched by the Windows operating system, the service program of the printer monitor will get the dispatch of the Windows system, and the service program will read the configuration information, understand the customer's requirement and execute the corresponding installation operation.
The working principle and the beneficial effects of the basic scheme are as follows: the installation package program is utilized to know detailed requirements of clients, the printer monitor is created to detect the connection state of equipment and install the driver, the one-to-one mapping problem of the driver and the printer and the dynamic binding problem of the new printer and the driver are achieved, manual participation is not needed in the installation process, and the use is facilitated.
Further, the method of installing the printer monitor is as follows:
calling an API function to obtain a system directory, and copying a monitor service file in a drive file to the directory;
creating a printer monitor, and using a monitor service file as a service program;
acquiring a system drive directory, and copying a drive file into the system drive directory;
and adding a printer driver, wherein the configuration file of the printer driver is a copy file in the system driver directory, and the printer driver is bound with the printer monitor.
Subsequent operations are facilitated by creating a printer monitor to ascertain device connection status and install drivers.
Further, the user requires the printer installation and identification method to operate in the single device mode:
when the printer monitor detects a first newly accessed printer, copying a monitor file in the drive file to a system directory, and carrying out user-defined naming;
calling an API function to register the API function as a printer monitor, calling the API function to create a custom port, and binding the printer monitor with the port;
calling an API function and creating a printer driver;
and the installation monitor registers the USB equipment instance path of the printer under the registry path corresponding to the printer icon.
The printer icon is responsible for receiving a printing task of a user, the task is processed by a printer driver under the assistance of an operating system, and finally the task is handed over to a printer monitor for processing through a port and other ways, and the printer monitor is responsible for communicating with the printer to complete printing output.
Further, when a user executes a print task, after serial scheduling, the monitor service file is executed, a USB device instance path corresponding to the printer driver icon is found from the registry, and an API function is called to create a USB device handle, and communication is initiated to the corresponding printer.
The user sends the print task to the printer driver icon, and finally hands over the print task to the printer monitor after the operation flow, and the printer monitor extracts the USB device path corresponding to the printer icon from the registry, so as to establish connection with the printer.
Further, when the user changes the printer, the printer monitor acquires the USB device instance path of the new printer and updates the registration information of the driver icon, so that the driver icon initiates communication to the new printer when the user prints a task.
Each printer has unique fixed identity attribute, and when a user changes the printer, the equipment can automatically identify a new printer, so that the use is facilitated.
Further, the user requests the printer installation and identification method to operate in the multi-device mode:
when the printer monitor detects a first newly accessed printer, a corresponding driving icon is established for the printer monitor in a single equipment mode;
and when a second newly-entered printer is detected, a corresponding driving icon is created for the printer in a single-equipment mode, the driving icons run independently, and a one-to-one mapping relation is established through the corresponding USB equipment instance paths in the registry in the registration information.
Each printer shares one printer driver and has a port, a monitor and a printer driver icon which are independent of each other, so that a plurality of printers are automatically and correspondingly identified, and different printing requirements are met.
Further, when a user requires to operate in a fixed drive number mode, the configuration file provides an upper limit of the number of drives to be installed and names of corresponding drive icons;
when the printer monitor detects a first newly-accessed printer, installing corresponding printer icons in a single-equipment mode, and repeating the steps until the number of the installed drive icons reaches an upper limit value;
if a new printer is accessed, the printer monitor adopts a process communication technology to establish a connection with a maintenance service program, and the maintenance service program pops up a man-machine interaction interface to enable a user to select a printer icon to be bound with the new printer;
after the user clicks 'binding', the printer monitor updates the USB device instance path in the registry, updates the mapping relation between the driving icon and the printer, and meets the dynamic binding requirement of the client for replacing the printer.
According to the operation mode of user's demand, the automatic binding of changing the printer, easy operation, convenient to use.
Further, the configuration file contains the application scene type of the user, the number of printer driver icons to be installed, and the respective custom names.
The configuration file provides the required information, which is convenient for subsequent operation.
The present invention also provides a computer medium having stored thereon instructions for performing the method of the present invention.
The computer medium can execute the automatic printer installation and identification method, and the computer medium can be installed on various devices to operate, so that the automatic printer installation and identification of the devices are facilitated, and the use is convenient.
Drawings
FIG. 1 is a schematic structural diagram of an automatic printer installation and identification method based on USB communication according to the present invention;
FIG. 2 is a schematic structural diagram of a single device operating mode of the automatic printer installation and identification method based on USB communication according to the present invention;
FIG. 3 is a schematic structural diagram of a multi-device operating mode of the automatic printer installation and identification method based on USB communication according to the present invention;
fig. 4 is a schematic structural diagram of a fixed drive number mode of the automatic printer installation and identification method based on USB communication according to the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In order to make up for the defects of the prior art and meet the application requirements, the invention needs to solve the following technical problems:
solving the problem of how to make Windows create a unique USB device instance path for a printer;
solving the problem of how the installation program knows the detailed requirements of the client;
solving the problem of no need of manual participation in the installation process;
solving the problem of how to detect the connection state of the equipment;
solving the problem of how to implement one-to-one mapping of the driver and the printer;
solve how to implement the dynamic binding problem of new printer and driver.
The creation process of a printer driver requires four steps:
a monitor (monitor), an add print port (port), a printer driver (driver), and a printer device (printer) are created for the printer.
The printer device (printer) is referred to as a printer icon for convenience of the following description, because it can be viewed as a "device and printer" on the "control panel" and is presented in the form of a printer icon.
The printer driver and port can click on any printer icon, then click on the print service attribute, and view it in the "port" and "driver" in the pop-up dialog.
The user sends the print task to the printer icon, and the printer icon controls the printer to print information through the printer driver, the port and finally the monitor.
As shown in FIG. 1, the invention discloses a printer automatic installation and identification method based on USB communication, comprising the following steps:
first, the present invention solves the problem of one-to-one mapping between printer driver icons and printers, and requires that each printer has a unique fixed identity attribute in the Windows system. Therefore, the printer is required to report its own USB VID, PID, and SN (USB vendor number, product number, and device serial number) during USB enumeration, and Windows will automatically create a unique USB device instance path for it.
In order to establish an event notification relationship between a printer and a printing service (Print spooller) of a Windows system, the printer also needs to define itself as a USB printing support category, and reports the USB printing support category as a partial content of a USB descriptor during enumeration (in mathematics and computer science theory, enumeration of one set is a program listing all members of a finite sequence set, or a count of a specific type of object). Therefore, after the Printer is connected, the "USB Printer" option can be viewed through the "universal serial bus" in the "device manager", and the USB device instance path can be viewed through the attribute information of the option.
And setting a configuration file in the installation package, and acquiring the specific requirements of the user to meet the complex use scene of the user, wherein the specific requirements are printer installation and identification in a single-equipment mode or printer installation and identification in a multi-equipment mode. The installation package includes an installer (executable), an uninstaller, a configuration file, related drivers, and a maintenance service. The configuration file comprises the application scene type of the user, the number of printer driver icons to be installed and respective custom names.
The installation package is utilized to run an installation program, a maintenance service program is registered and a printer monitor is installed, and the maintenance service program is responsible for receiving notification messages from the printer monitor and popping up a human-computer interaction interface for user operation;
detecting the connection state of the printer and loading a driver by using a printer monitor;
when the printer is connected to an application device (i.e., a computer), the printer monitor is scheduled by the Windows operating system, and the function LcmEnumPorts in the service program of the printer monitor is executed, the service program reads the configuration information and knows the customer requirements, and in the function, the corresponding installation operation is executed.
In a preferred embodiment of the present invention, a method of installing a printer monitor includes:
calling an API (Application Programming Interface) function GetSystemDirectory to acquire a system directory, and copying a monitor service file (such as testmonitor. dll) in a drive file to the directory, wherein the monitor service file is a dynamic library file;
calling an API function AddMonitor, creating a printer monitor, taking a monitor service file testMonitor.dll as a service program, and realizing the method by taking the testMonitor.dll as a configuration parameter of the AddMonitor; the printer MONITOR is a structure body of MONITOR _ INFO _2 calling a custom name created by the API function AddMonitor, the name is regarded as a MONITOR name by the operating system, and its attribute is a member variable value in the MONITOR _ INFO _2 structure body;
the installation program further calls an API function GetPriterDrivereal to obtain a system drive directory and copies the drive file into the system drive directory;
and the installation program calls the API function AddPrintedriver and adds a printer driver, wherein the configuration file of the printer driver is a copy file in the system driver directory, and the printer driver is bound with the printer monitor. To this end, the installer has completed the installation task, handing over the functionality of ascertaining the connection status of the printer and loading the driver to the printer monitor. When the printer is connected to the computer, the printer monitor will be scheduled by the operating system, the function (LcmEnumPorts) in the service program of the installation monitor will be executed, the installation monitor will read the configuration information and know the customer's requirement, and in the function, the corresponding installation operation is executed.
In a preferred embodiment of the present invention, as shown in fig. 2, a user requests a printer installation and identification method operating in a single device mode:
when the printer monitor detects a first newly-accessed printer, copying a monitor file in the drive file to a system directory, and carrying out custom naming (such as testmonitor 0.dll);
calling an API function to register the API function as a printer monitor, calling the API function XcvData to create a custom port (for example: test port 0), binding the printer monitor with the port, and realizing by opening a handle of the monitor and transmitting the handle to the XcvData;
calling an API function AddPrintedriver to create a printer driver;
calling an API function AddPrinter to create a printer icon, referred to in the industry as adding printer equipment, and presenting the result to a user in the form of the printer icon, so that the created result of AddPrinter is referred to as the printer icon in order to distinguish from the actual printer equipment;
and the installation monitor registers the USB equipment instance path of the printer under the registry path corresponding to the printer icon.
When a user executes a print task, after serial scheduling, the monitor service file testmonitor0.dll is executed, a USB device instance path corresponding to a printer driver icon is searched from the registry, an API function CreateFile is called to create a USB device handle, and communication is initiated to a corresponding printer. When a user replaces the printer, the printer monitor acquires the USB device instance path of the new printer and updates the registration information of the drive icon, so that the drive icon initiates communication to the new printer when the user prints a task.
In a preferred embodiment of the present invention, as shown in fig. 3, a user requests a printer installation and identification method operating in a multi-device mode:
when the printer monitor detects a first newly accessed printer, a corresponding driving icon is established for the printer monitor in a single equipment mode; basis for determination of new printer: determining whether a USB device instance path of the printer already exists under a registration path of a printer icon;
and when a second newly-entered printer is detected, corresponding driving icons are created for the newly-entered printer in a single-equipment mode, the driving icons run independently, and a one-to-one mapping relation is established through corresponding USB equipment instance paths in the registry.
As shown in fig. 4, when a user requests to operate in the fixed drive number mode, the configuration file provides an upper limit of the number of drives to be installed and names of corresponding drive icons;
when the printer monitor detects a first newly-accessed printer, installing corresponding printer icons in a single-equipment mode, and repeating the steps until the number of the installed drive icons reaches an upper limit value;
if a new printer is accessed, the printer monitor adopts a process communication technology to establish a connection with a maintenance service program, and the maintenance service program pops up a man-machine interaction interface to enable a user to select a printer icon to be bound with the new printer; process communication technologies such as WeChat and nailing are two independent processes, if one now wants to implement one function: clicking a button on the WeChat causes the staple to flutter, which requires the WeChat and staple to communicate with each other, which is called process communication. The process communication of the embodiment is that the service file of the print monitor is communicated with the maintenance program, the maintenance program pops up a human-computer interface, and the user operation is allowed, so that the one-to-one binding mapping between the existing printer driver and the currently connected printer device is realized;
after the user clicks 'binding', the printer monitor updates the USB device instance path in the registry, updates the mapping relation between the driving icon and the printer, and meets the dynamic binding requirement of the client for replacing the printer.
The present invention also provides a computer medium having stored thereon instructions for performing the method of the present invention. The computer medium can execute the automatic printer installation and identification method, and the computer medium can be installed on various devices to operate, so that the automatic printer installation and identification of the devices are facilitated, and the use is convenient.
The installation program of the scheme is compatible with three user use scenes, the installation program finds out the connection state of the equipment and installs the driver by establishing the printer monitor, the USB descriptor of the printer comprises the serial number of the USB equipment and the USB printing support class code, and each printer shares one printer driver and has a port, a monitor and a printer driver icon which are independent respectively.
The printer monitor in the invention can be replaced by creating a Windows service or application program, and if the printer is not defined as USB printing support but contains a USB serial number descriptor, the device connection state can be detected by adopting a mode of polling the Windows service or application program. The monitor of one printer can replace the printer monitor of the invention, and the register information storage mode of the invention is replaced by modifying the configuration file and the like, so as to establish the one-to-one mapping relation between the printer driver icon and the printer.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A printer automatic installation and identification method based on USB communication is characterized by comprising the following steps:
setting a configuration file in an installation package, and acquiring specific requirements of a user, wherein the specific requirements are printer installation and identification in a single-equipment mode or printer installation and identification in a multi-equipment mode;
running an installation program by using the installation package, registering a maintenance service program and installing a printer monitor;
detecting the connection state of the printer and loading a driver by using a printer monitor;
when the printer is connected to the computer, the printer monitor will be dispatched by the Windows operating system, the service program of the printer monitor will get the dispatch of the Windows system, and the service program will read the configuration information, understand the customer's requirement and execute the corresponding installation operation.
2. The automatic printer installation and recognition method based on USB communication according to claim 1, wherein the method of installing the printer monitor is as follows:
calling an API function to obtain a system directory, and copying a monitor service file in a drive file to the directory;
creating a printer monitor, and using a monitor service file as a service program;
acquiring a system drive directory, and copying a drive file into the system drive directory;
and adding a printer driver, wherein the configuration file of the printer driver is a copy file under the system driver directory, and binding the printer driver to the printer monitor.
3. The automatic printer installation and recognition method based on USB communication according to claim 1, wherein the user requests the printer installation and recognition method operating in single device mode:
when the printer monitor detects a first newly accessed printer, copying a monitor file in the drive file to a system directory, and carrying out user-defined naming;
calling an API function to register the API function as a printer monitor, calling the API function to create a custom port, and binding the printer monitor with the port;
calling an API function and creating a printer icon;
the installation monitor registers the USB device instance path of the printer under the registry path of the printer icon.
4. The automatic printer installation and identification method based on USB communication of claim 3, wherein when a user executes a print job, through a series of scheduling, a monitor service file is executed, the service file searches a USB device instance path corresponding to the printer driver icon from the registry, and calls an API function to create a USB device handle to initiate communication to the corresponding printer.
5. The automatic printer installation and identification method based on USB communication of claim 3, wherein when the user changes the printer, the printer monitor will acquire the USB device instance path of the new printer and update the registration information of the driver icon, so as to ensure that the driver icon initiates communication to the new printer when the user prints the job.
6. The automatic printer installation and recognition method based on USB communication according to claim 1, wherein the user requests the printer installation and recognition method operating in multi-device mode to:
when the printer monitor detects a first newly accessed printer, a corresponding driving icon is established for the printer monitor in a single equipment mode;
and when a second newly-entered printer is detected, corresponding driving icons are created for the newly-entered printer in a single-equipment mode, the driving icons run independently, and a one-to-one mapping relation is established through corresponding USB equipment instance paths in the registry.
7. The automatic printer installation and identification method based on USB communication of claim 6, wherein when a user requests to operate in a fixed drive number mode, the configuration file provides an upper limit of the number of drives to be installed and the names of corresponding drive icons;
when the printer monitor detects a first newly-accessed printer, installing corresponding printer icons in a single-equipment mode, and repeating the steps until the number of the installed drive icons reaches an upper limit value;
if a new printer is accessed, the printer monitor adopts a process communication technology to establish a connection with a maintenance service program, and the maintenance service program pops up a man-machine interaction interface to enable a user to select a printer icon to be bound with the new printer;
after the user clicks 'binding', the printer monitor updates the USB device instance path in the registry, updates the mapping relation between the driving icon and the printer, and meets the dynamic binding requirement of the client for replacing the printer.
8. The automatic printer installation and recognition method based on USB communication of claim 1, wherein the configuration file contains the type of application scenario of the user, the number of printer driver icons to be installed, and the respective custom names.
9. A computer medium having stored thereon instructions for performing the method of any one of claims 1-8.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6184998B1 (en) * | 1997-09-15 | 2001-02-06 | Canon Kabushiki Kaisha | Adding printing to the windows registry |
| CN1577242A (en) * | 2003-06-30 | 2005-02-09 | 微软公司 | System and method for automatic configuration |
| US10091380B1 (en) * | 2017-06-02 | 2018-10-02 | Xerox Corporation | Systems and methods of implementing universal print drivers in a windows print architecture |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6184998B1 (en) * | 1997-09-15 | 2001-02-06 | Canon Kabushiki Kaisha | Adding printing to the windows registry |
| CN1577242A (en) * | 2003-06-30 | 2005-02-09 | 微软公司 | System and method for automatic configuration |
| US10091380B1 (en) * | 2017-06-02 | 2018-10-02 | Xerox Corporation | Systems and methods of implementing universal print drivers in a windows print architecture |
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