42 results about "Virtual printer" patented technology

The invention relates to the technical field of data transmission security, in particular to a file security transmission system and method based on a virtual printer. The method comprises the following steps: acquiring a key constraint parameter set, and generating a preselected key pool according to the key constraint parameter set; acquiring virtual printing task information, analyzing the virtual printing task information, and generating a document data block set; based on the preselected key pool, performing encryption-write separated transmission on each data block in the document data block set to generate local encryption cache information; and determining a decryption key set according to the local encryption cache information and the preselected key pool, performing decryption-reading separated transmission on each data block in the local encryption cache information according to the decryption key set, and generating and outputting virtual printing content. According to the method and the device, the whole-process encryption and separated processing of the data are realized in the printing data transmission process, and the security and confidentiality of the document content are effectively guaranteed.

The invention belongs to the technical field of computer printing, and provides a cross-platform hybrid printing method and system based on a PDF virtual printer, and the method comprises the steps: creating a target PDF virtual printer in a printing client; the printing client obtains a printing task of a user and an initial printing file, and selects a target PDF virtual printer corresponding to a target client; the printing client generates a printing file from the initial printing file according to the printing task, the format of the printing file is converted through the target PDF virtual machine, and a PDF printing intermediate file is obtained and sent to the target client; the target client receives the PDF printing intermediate file and performs printing examination and approval, and if the examination and approval are passed, the PDF printing intermediate file is processed and sent to a physical printer for printing output; otherwise, printing is terminated. According to the invention, through standardization of the PDF format, the problem of driving compatibility among different operating systems is avoided.

A cloud print server manages a printing apparatus and device attributes of the printing apparatus, a device type included in the device attribute having information indicating a type of a printing apparatus. The cloud print server displays a list of printing apparatuses managed by the cloud print server while not displaying a specific type of printing apparatus or hanging a display mode of the specific type of printing apparatus and accept selection of the printing apparatus list displayed by an administrator. The cloud print server associates the selected printing apparatus to a virtual printer, stores a print job submit to the virtual printer in one or more memory in association with the virtual printer and transmits the print job stored in association with the virtual printer to the associated printing apparatus according to an instruction from a user.

A computer-readable storage medium stores computer-readable instructions supporting a general-purpose print program incorporated in an operating system of an information processing device. The instructions, when executed by a computer of the information processing device, cause the information processing device to obtain specific information to identify a selected printing device, obtain capability information indicating capabilities of the selected printing device, determine, in response to receiving a processing request from the general-purpose print program, whether the selected printing device is a virtual printer of a server on a network, based on the specific information, display a first print setting screen configured to accept print settings based on the capability information when the selected printing device is not the virtual printer, and display a second print setting screen configured to accept print settings based on common capabilities of printing devices connectable with the server when the selected printing device is the virtual printer.

The present disclosure provides a virtual printer program product, a print control apparatus, and a printing method, and provides a structure for performing printing implemented via a print server using a general-purpose printer driver. A virtual printer program according to one embodiment of the present disclosure causes a computer to execute a first communication process, a second communication process, and a printing process. In the first communication process, the general-purpose printer driver (16) is disguised as a printer and communicates with the general-purpose printer driver (16). In the second communication process, communication with the print server (20) is performed. In the printing process, the print job acquired from the general-purpose printer driver (16) in the first communication process is transmitted to the print server (20) in the second communication process, and a printer connected to the print server (20) via a network performs printing.

The present invention makes it possible to register a virtual printing device and perform initial settings, etc., in advance, even in a state where an actual printing device is not connected, and execute a printing operation later when the actual printing device is connected.　A printer application 170 causes the following steps to be executed: when a printer 200 is not yet connected to a terminal device 100, a step S30 for causing a CUPS 160 to register the printer application 170 as a virtual printer corresponding to the printer 200, by responding to a search for the printer 200 by the CUPS 160, and a step S60 for outputting capability information of the printer 200 in response to a request for the capability information from the CUPS 160; and after the printer 200 is connected to the terminal device 100, a step S120 for acquiring print data from the CUPS 160 corresponding to the output capability information, and a step S170 for transmitting print data obtained by converting the acquired print data to the connected printer 200.

This invention provides a printing device, a control method, and a program that, when creating a virtual printer, prevents situations where the user cannot obtain the desired print result by setting predetermined capability information if the virtual printer is not associated with a printing device. [Solution] A first server system provides a first cloud print service 104 that provides print data to a printer, and registers the first cloud print service as a destination printer with respect to a second server system that provides a second cloud print service 105, and obtains print data from the second server system that has registered the first cloud print service as a destination printer using IPP (Internet Printing Protocol) operations, and provides print data based on the obtained print data to the printer 107.

To provide an information processing program and an information processing apparatus, even in a state where an actual printer is not connected, which beforehand allows the register of a virtual printer and the execution of initial setting or the like, and allows a printing operation to execute when the actual printer is connected after that.SOLUTION: When a printer 200 is not yet connected to a terminal device 100, a printer application 170 allows a processor 110 of the terminal device 100 to execute: a step S30 in which the printer application 170 is registered for a CUPS160 as a virtual printer corresponding to the printer 200 by responding to the search of the printer 200 by the CUPS160; and a step S60 in which the capability information of the printer 200 is outputted for the request of capability information from the CUPS160, and after the connection of the printer 200 to the terminal device 100, allows the same to execute: a step S120 of acquiring printing data from the CUPS160 corresponding to the outputted capability information; and a step S170 of sending printing data obtained by converting the acquired printing data toward the connected printer 200.SELECTED DRAWING: Figure 1

The invention relates to the field of relay protection device constant value checking, and provides a transformer substation relay protection device constant value automatic checking system which comprises a constant value data acquisition unit, a constant value automatic checking unit and a report output unit. The constant value data acquisition unit is used for connecting virtual printing equipment with a relay protection device through a serial interface, generating a numerical value document of digital operation by adopting a virtual printer, and transmitting the generated data to the constant value automatic checking unit; an automatic constant value checking unit extracts key data of the actual measured value based on the character string similarity and automatically compares the key data with a reference constant value; the report output unit checks the data and then automatically generates a report and stores the report; the method improves the checking efficiency and accuracy of the constant value of the transformer substation relay protection device, reduces the cost, and is of great significance to the safe and stable operation of a power transmission line.

The invention discloses a nuclear power monitoring printing method, system and equipment based on a virtual printer, and relates to the technical field of data processing.The method comprises the steps that dynamic change information in a nuclear power monitoring interface is captured in real time based on the real-time screen capture and event-driven technology, and multi-stage processing is conducted on the dynamic change information in combination with an annular buffer architecture, so that the dynamic change information is obtained; obtaining nuclear power monitoring display page information in a preset template format; calling nuclear power monitoring display page information to be printed, and performing static and dynamic file format generation and encryption processing; classifying and storing the target printing files according to a preset rule, and generating and storing index information; performing authority authentication on the access user and displaying the index information after the authority authentication is passed; and retrieving the corresponding target printing file according to the selection of the access user on the index information, and allowing the target printing file to be used after decryption. Dynamic information of the monitoring interface can be captured in real time, diversified output is supported, data safety is ensured, and operation is easy and convenient.

The present invention enables print setting for each user when executing printing via a virtual printer. A printer application 170 executes: a step S240 of acquiring a PPD file for managing a print setting range for each user, in which range print setting in a printer 200 can be performed; a step S250 of transmitting an attribute for specifying the print setting range of a user using a terminal device 100 to a CUPS 160 on the basis of the acquired PPD file; a step S430 of acquiring, from the CUPS 160, print data of a print setting suitable for the print setting range corresponding to the user identified by the attribute; and a step S480 of performing control so that print data based on the print data acquired in the step S430 is transmitted to the printer 200.

A cloud print system comprising a first cloud print server and a second cloud print server; wherein the first cloud print server is configured to manage a second virtual printer of the second cloud print server in association with a first virtual printer of the first cloud print server, store a print job submitted to the first virtual printer in one or more first memory devices in association with the first virtual printer, and transmit the print job stored in association with the first virtual printer to the second virtual printer according to an instruction from a user.

According to an aspect of the present disclosure, there is provided a non-transitory computer-readable storage medium storing a virtual printer program, the virtual printer program causing a computer to execute first communication processing, second communication processing, and printing processing. The first communication processing is processing of pretending a printer for a general-purpose printer driver and communicating with the general-purpose printer driver. In the second communication processing, communication is performed with a print server. In the printing processing, a print job acquired from the general-purpose printer driver in the first communication processing is transmitted to the print server: in the second communication processing to cause a printer connected to the print server via a network to perform printing.

An information processing apparatus includes a processor configured to: acquire apparatus identification information of an image forming apparatus located within a predetermined distance from the information processing apparatus; and transmit to a predetermined destination for a printing service the apparatus identification information that has been acquired and positional information indicating a position of the information processing apparatus after associating the positional information with the apparatus identification information. The image forming apparatus is controlled as a virtual printer corresponding to the image forming apparatus by a server for the printing service, and the server is connected to the image forming apparatus by using a network.

To prevent incorrect setting of paper size based on capability information transmitted from a virtual printer to an OS.SOLUTION: A printer application 170 is configured to execute a step S120 to acquire tray information, paper status information, and tray paper setting information related to a paper tray provided in a printer 200 and a printing paper stored in the paper tray; a step 205; a step S 220; steps S140 and S150 to generate attributes suited to a paper feed environment of the printer 200 according to the tray information, the paper status information, and the tray paper setting information; and a step S160 to output the generated attribute to a CUPS 160.SELECTED DRAWING: Figure 8

Even if an actual printing device is not connected, a virtual printing device can be registered in advance to execute initial setting and the like, and a printing operation can be executed when the actual printing device is connected later. When the printer (200) is not yet connected to the terminal device (100), the printer application (170) executes: a step (S30) in which the printer application (170) is registered in the CUPS (160) as a virtual printer corresponding to the printer (200) by responding to a search for the printer (200) by the CUPS (160); and a step S60 for outputting the capability information of the printer (200) in response to a request for the capability information from the CUPS (160), and after the printer (200) is connected to the terminal device (100), the printer application (170) executes: a step S120 for acquiring print data from the CUPS (160) corresponding to the output capability information; and a step (S170) in which print data obtained by converting the acquired print data is transmitted to the connected printer (200).

This invention relates to a method, apparatus, device, and medium for acquiring electronic documents based on virtual printing, and pertains to the field of digital data information processing technology. The method includes: a client obtaining graphic and textual output content from a business system via a virtual printer; matching this content with a recognition template; marking textual content within the variable domain range recognized by the recognition template when a match is successful; performing OCR recognition on non-textual content and caching the result as variable content; correcting the recognition result according to the recognition template; organizing the variable content into hierarchical data nodes according to the recognition template; querying a local data dictionary to translate the corresponding variable content into corresponding data codes; converting the graphic and textual output content into a layout document; using the data nodes and data codes as indexes or data attachment fragments of the layout document; extracting information from the marked structured content and / or data codes according to the recognition template as metadata for the layout document; and generating an output electronic document.

The invention provides a printing method and device and a storage medium, and is applied to the technical field of computers, the method comprises the steps that a printing request triggered based on triggering information of a terminal is obtained, and the printing request comprises printer type information; determining a target virtual printer from at least one virtual printer according to the printing request, wherein the target virtual printer corresponds to the printer type information; converting a to-be-printed file into to-be-printed information in a target format by using the target virtual printer; and sending the to-be-printed information to a terminal by using a virtual port, wherein the terminal is connected with a target physical printer corresponding to the printer type information.

The present invention prevents erroneous setting of paper size based on capability information transmitted from a virtual printer to an OS. A printer application (170) is configured to execute the following steps: a step (S120), a step (S205), and a step (S220) of acquiring tray information, paper state information, and tray paper setting information relating to a paper tray provided in a printer (200) and paper to be printed stored in the paper tray; a step (S140) and a step (S150) for generating an attribute suitable for the paper feeding environment of the printer (200) on the basis of the tray information, the paper state information, and the tray paper setting information; and a step (S160) for outputting the generated attribute to the CUPS (160).

To allow a user to perform unique print settings by a virtual printer corresponding to a desired printing device without performing processing according to the virtual printer.SOLUTION: A launcher 106 causes a processor 110 of a terminal device 100 to execute: a step S20 of outputting display data for causing a display unit 140 of the terminal device 100 to display a dialog box DB1 that allows selection of a plurality of printers 200 corresponding to a plurality of printer applications 170; a step S400 of accepting a selection operation for one printer 200 among the plurality of printers 200 in the displayed dialog box DB1; and a step S420 in which one printer application 170 among the plurality of printer applications 170 corresponding to the one printer 200 accepted in the step S400 performs processing for causing the display unit 140 of the terminal device 100 to display a print setting screen for the one printer 200 whose selection has been accepted.SELECTED DRAWING: Figure 14

An information processing device is configured to execute a management program and a print server program. The management program registers, in an operating system, a virtual printer compliant with a particular printer. The print program obtains print data generated by the operating system in a case where printing designating the registered virtual printer is instructed, converts the obtained print data to print data which is supported by the particular printer and not compliant with a general-use standard, and transmit the converted print data supported by the particular printer to the particular printer.

The invention discloses an electronic file collection method and device based on virtual printing, equipment and a medium, and relates to the technical field of digital data information processing. The method comprises the following steps: a client obtains image-text output content from a business system through a virtual printer; matching the image with an identification template; when the matching is successful, marking the text content in the variable domain range identified by the identification template; if the content is not the text content, performing OCR (Optical Character Recognition) and caching a result as a variable content; the recognition result is corrected according to the recognition template; organizing the variable content into data nodes with a hierarchical structure according to the recognition template; querying a local data dictionary to translate the corresponding variable content into a corresponding data code; converting the image-text output content into a format document; taking the data node and the data code as an index or a data attachment fragment of the format document; extracting information from the marked structured contents and / or data codes according to the identification template to serve as metadata of the format document; and generating an output electronic file.

A non-transitory computer-readable storage medium stores an application program which causes an information processing apparatus to perform a control method. The information processing apparatus has printing software. The control method includes receiving an image processing setting, storing data to which image processing corresponding to the image processing setting is applied into a predetermined storage area of the information processing apparatus in response to acceptance of an instruction to perform processing in a state where a virtual printer for which data is set to be generated using the printing software is selected, and transmitting the data to which the image processing corresponding to the image processing setting is applied to a physical printer for which data is set to be generated using the printing software in response to acceptance of an instruction to perform processing in a state where the physical printer is selected as a printing destination.

The invention discloses a printer sharing method and device between a cloud desktop and a terminal, equipment and a storage medium, and relates to the field of printing. When a target driver corresponding to a target real printer does not exist in the cloud desktop and the target driver exists in the terminal, a target virtual driver is installed in the cloud desktop, and a target virtual printer is constructed; the target printing task is rendered based on the target virtual printer and the target virtual driver, so that the terminal calls the target driver according to a rendering result to enable the target real printer to perform printing; and when the terminal does not have the target driver and the cloud desktop has the target driver, redirecting the target real printer to the cloud desktop, so that the cloud desktop can call the target real printer to realize a printing function, installing a target virtual driver in the terminal, and constructing a target virtual printer. And the target printing task is rendered based on the target virtual printer and the target virtual driver, so that the cloud desktop calls the target driver according to the rendering result to enable the target real printer to perform printing, and normal use of the printing function is ensured.

The present invention enables a user to execute a unique print setting based on a virtual printer corresponding to a desired printing device without performing a process corresponding to the virtual printer. An initiator (106) causes a processor (110) of a terminal device (100) to execute: a step (S20) for outputting display data for causing a display unit (140) of the terminal device (100) to display a dialog box (DB1) capable of selecting a plurality of printers (200) corresponding to a plurality of printer applications (170); a step S400 in which a selection operation of one printer (200) among the plurality of printers (200) is accepted in the displayed dialog box (DB1); and a step S420 of performing a process for causing one printer application (170) corresponding to the one printer (200) accepted in the step S400 among the plurality of printer applications (170) to display, on a display unit (140) of the terminal device (100), a print setting screen of the one printer (200) for which the selection has been accepted.

The invention provides a virtual printer adding method and device, equipment, a storage medium and a program product, the method is applied to terminal equipment, the terminal equipment comprises a display interface, and the method comprises the steps that in response to a virtual printer adding instruction triggered by a user, a configuration list of newly-added virtual printers is displayed in the display interface; in response to a configuration information setting instruction triggered by a user, setting the configuration information in the configuration list; and in response to a virtual printer adding instruction triggered by the user, adding the newly added virtual printer to the terminal equipment. Compared with the prior art, the user does not need to carry out a tedious operation process, the process is simple, and the user experience is improved to a certain extent.

The present invention discloses a printing control method, device and system, and relates to the field of printing technology. The method comprises: a virtual printer acquires printing data, and sends the printing data to a raster image processor; the raster image processor performs color correction and gridding processing on the printing data, and sends the processed printing data to a printing control module; the printing control module controls the printer nozzle to print according to the processed printing data. The virtual printer of the present invention can directly acquire the content of the above-mentioned file to be printed; the raster image processor can ensure the color and accuracy of the output file through color correction and screening processing, and the printer finally used is not limited to desktop office printers, but can also be large-format photo machines, inkjet printers and flatbed machines, etc., to meet the needs of large-format output.

The present invention prevents erroneous setting of a paper size based on capability information transmitted from a virtual printer to an OS.　A printer application 170 is configured to execute: a step S120, step S205, and step S220 for acquiring tray information, paper status information, and tray paper setting information related to a paper tray provided to a printer 200 and related to printing paper that is stored in said paper tray; a step S140 and step S150 for generating, in accordance with the tray information, the paper status information, and the tray paper setting information, attributes suited to the paper feeding environment of the printer 200; and a step S160 for outputting the generated attributes to a CUPS 160.

To provide technology that enables effective use of virtual printers by linking the OS's standard printing function with support programs. [Solution] The auxiliary program 42 instructs the OS 21 to create a printer queue 22b for the virtual printer associated with the auxiliary program 42, and can identify, for example, an unsupported device 2 as a device corresponding to the virtual printer. Furthermore, when the virtual printer is selected and an instruction to display the detailed settings screen is given, and processing is requested from the general-purpose printing program 41, the auxiliary program 42 displays a detailed settings screen based on the capabilities of the identified unsupported device 2 to the user IF 13. When a print instruction is given with the virtual printer selected, and processing is requested from the general-purpose printing program 41, the auxiliary program 42 acquires image data indicating the image to be printed, and sends a print job containing print data based on the acquired image data to the identified unsupported device 2.

To provide an information processing program, an information processing method, and an information processing device that can improve usability.SOLUTION: In a PC for executing functions such as an operating system (OS), application, and print server by reading and executing a prescribed program, a print server 5 is provided with: a search unit 80 for searching for a printer on a network; a priority acquisition unit 81 for acquiring, from a detected printer, functions available to the printer; a determination unit 82 for determining, based on the printer's functions, whether or not to create a virtual printer, which is a destination for print jobs sent from the OS to the printer; and a virtual printer creation unit 83 for creating a virtual printer for the printer for which a virtual printer is determined to be created at the determination unit 82.SELECTED DRAWING: Figure 15