JP2003283718A - Method for processing drawn image in terminal emulator for image forming apparatus, program for allowing computer to execute the method, and image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily transplant a terminal display application to an image forming apparatus without the need for modifying the inside of the terminal display application capable of naturally displaying various images on an operation panel of the image forming apparatus. <P>SOLUTION: A reception FIFO queue 140 receives and stores data of a standard output of a terminal display application 130, outputs the received data in the received order, applies variable-length block comparison to a variable- length control code included in the received data, updates a stream position when recognizing a corresponding code, and instructs an image drawing processing section 114 in a prescribed timing to set an image drawing timing to a display section of the operation panel 160 depending on the state of the received data in the reception FIFO queue. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal display application in which an operation panel of an image forming apparatus which provides a user service for image forming processing such as copying, printer, scanner or facsimile has a drawing processing and an event processing function. The present invention relates to a drawing processing method in a terminal emulator for an image forming apparatus to be transplanted, a program for causing a computer to execute the method, and an image forming apparatus capable of executing these.

[0002]

2. Description of the Related Art Conventionally, an image forming apparatus having any one of a printer function, a copy function, a facsimile function, and a scanner function has been generally known. Further, in recent years, an image forming apparatus (hereinafter, referred to as a “multifunction device”) in which the functions of each device such as a printer, a copier, a facsimile, and a scanner are housed in one housing is known. This multi-function peripheral is provided with a display unit, a printing unit, an imaging unit, and the like in one housing, and three types of software corresponding to a printer, a copier, and a facsimile device are provided, respectively, and by switching these software,
The apparatus is operated as a printer, a copier, a scanner or a facsimile machine.

As an operation panel in such a conventional image forming apparatus, there are provided operation keys for performing an operation and a small display for performing an operation display and an error display, or an operation display on a screen. There is a touch panel type that displays an operation key on the display panel and can be operated by directly touching the operation key while displaying an error display.

[0004]

However, such a conventional image forming apparatus does not have a terminal corresponding to a keyboard or a display such as a workstation or a personal computer, and therefore, for example, image forming is not possible. Even if a general-purpose terminal display application such as a Web browser is ported in an attempt to draw and display data such as a browsing screen using the display section of the operation panel of the device, standard input / output cannot be supported, and the operation panel is displayed as it is. The screen could not be displayed on the department. Of course, the terminal display application can be drawn and displayed by making a large change in the application so as to match the ported image forming apparatus, but changing the inside of the application requires time, labor and cost. There was a problem.

Further, in the conventional multi-function peripheral, software corresponding to a printer, a copier, a scanner, and a facsimile machine is separately provided, so that it takes a lot of time to develop each software. Therefore, the applicant has hardware resources used for image forming processing such as a display unit, a printing unit, and an imaging unit, and has an application that performs processing unique to each user service such as a printer, copy, or facsimile. When a plurality of the applications are installed and the user services are provided by intervening between these applications and the hardware resources, management of hardware resources commonly required by at least two of the applications, execution control, and image forming processing Invented an image forming apparatus (multi-function peripheral) having a platform composed of various control services for performing the above. According to this multi-function peripheral, at least two of the applications have a platform for performing management of hardware resources, execution control, and image forming processing commonly required by the applications, thereby improving the efficiency of software development. Therefore, it is possible to improve the productivity of the entire device.

As described above, in the new multifunction device invented by the applicant, the application and the control service are provided separately, so that after the multifunction device is shipped, the user or a third party, which is a third party, can make a new application. Has been developed and can be installed in a multifunction machine.
However, the same applies when installing a new application in this multi-function peripheral. If the multi-function peripheral does not have a terminal that supports the standard input / output of the application, it cannot be installed as it is and changed inside the application. Needed to be added. In particular, in the case of multi-function peripherals, at least the applications corresponding to the printer, copy, scanner, and facsimile must be developed separately, so it takes a lot of time to develop each software, and a general-purpose terminal display application is added. When attempting porting, there is a problem in that changes have to be made inside the application, the development period is further extended, and the software development efficiency is reduced.

[0007] Further, since it would have been good if a still image such as operation information and error display could be displayed on the display portion of the operation panel provided in a general image forming apparatus or a multi-function peripheral, it was possible to use OCS (operation panel control service). A method of calling a function to a function library and drawing it was adopted. However, in this method, O
Since the processing performed with CS is slow, if you try to display an image with changes such as scrolling the screen, the drawing speed will not catch up with the display, and the screen will flicker and the display screen will be unnatural. there were.

The present invention has been made in view of the above,
Image forming apparatus terminal capable of easily porting a terminal display application that can naturally display various images that have changed using the operation panel of the image forming apparatus without making a large change inside the application An object is to obtain a drawing processing method in an emulator, a program that causes a computer to execute the method, and an image forming apparatus.

[0009]

In order to achieve the above object, the invention according to claim 1 comprises an application having a hardware resource used in an image forming process and performing a user service related to the image forming process. A drawing processing method in a terminal emulator for an image forming apparatus that operates on an image forming apparatus capable of mounting a terminal display application, wherein received data from a standard output of the terminal display application is temporarily retained in a memory, A data holding processing step of outputting data in the order of reception,
At a data processing step of processing the output data into drawing information for the terminal display application, and at a predetermined timing according to the state of the received data in the memory,
A drawing processing step of collectively drawing the drawing information processed for the terminal display application on the display unit is included.

According to the first aspect of the invention, as a drawing processing method of the terminal emulator for the image forming apparatus which operates on the image forming apparatus capable of mounting the terminal display application, the reception from the standard output of the terminal display application is performed. Data holding processing step of temporarily holding the data in the memory and outputting the data in the order of reception, data processing processing step of processing the output data into drawing information for the terminal display application, and status of the received data in the memory It includes a drawing processing step of collectively drawing the drawing information processed for the terminal display application at a predetermined timing according to the above, so that the processed drawing information is not drawn each time, but drawn. Processing speed of drawing information because information is drawn to some extent and drawn at a predetermined timing No later than the screen flicker is small,
A natural display can be performed.

According to the second aspect of the present invention, the hardware resources used in the image forming process, the process of the application for performing the process unique to the user service related to the image forming process, the application and the hardware. Of a control service that intervenes between hardware resources and performs acquisition request, management, execution control, and image forming processing of the hardware resources commonly required by at least two applications when providing the user service. A drawing processing method in a terminal emulator for an image forming apparatus, which includes a process and an operation panel for inputting operation and outputting drawing information, and which can be mounted with a terminal display application. Received data from standard output of A data holding processing step of outputting the data in the held temporarily in memory, the order in which they were received,
At a data processing step of processing the output data into drawing information for the terminal display application, and at a predetermined timing according to the state of the received data in the memory,
A drawing processing step of collectively drawing the drawing information processed for the terminal display application on the display unit of the operation panel.

According to the second aspect of the present invention, the received data from the standard output of the terminal display application is used as the drawing processing method of the terminal emulator for the image forming apparatus which operates on the multi-function peripheral capable of mounting the terminal display application. Is temporarily stored in the memory and outputs the data in the order in which they are received, the data processing step that processes the output data into drawing information for the terminal display application, and the state of the received data in the memory. Since the drawing processing step for collectively drawing the drawing information processed for the terminal display application at the predetermined timing according to the drawing processing step is included, the processed drawing information is not drawn each time, but the drawing information is drawn. The processing speed of the drawing information is slow because it is drawn to some extent at a predetermined timing. Even flickering of the screen is small, it is possible to perform a natural display.

The invention according to claim 3 is the drawing processing method in the terminal emulator for an image forming apparatus according to claim 1 or 2, wherein the drawing processing step is performed in accordance with a state of received data in the memory. The drawing information should be drawn on the display unit when the received data in the memory is empty and / or when the received data is not received in the memory for a certain period of time as a predetermined timing. Is characterized by.

According to the third aspect of the invention, the received data in the memory has become empty or the received data is fixed in the memory at a predetermined timing according to the state of the received data in the memory in the drawing processing step. If at least one of the conditions of not receiving time is met,
Since the drawing information is drawn on the display unit, the processed drawing information is collected to some extent and drawn at each predetermined timing, so that natural display with little screen flicker can be performed.

The invention according to claim 4 is the drawing processing method in the terminal emulator for an image forming apparatus according to any one of claims 1 to 3, wherein the drawing processing step draws on a display unit. It is characterized in that line data whose display content is changed is used as drawing information for redrawing.

According to the fourth aspect of the present invention, since the line data whose display content has been changed is used as the drawing information to be drawn on the display unit of the drawing processing step, the drawing is performed again efficiently and quickly. Since it is possible to perform various drawing processes, it is possible to perform natural display with less flicker on the screen.

According to a fifth aspect of the present invention, in the drawing processing method in the terminal emulator for an image forming apparatus according to any one of the first to fourth aspects, following the data holding processing step, output data is output. Parses
It is characterized by further including a syntax analysis processing step for calling an appropriate display processing according to a control code included in the output data.

According to the invention of claim 5, the output data is parsed in the syntax analysis processing step following the data holding processing step, and an appropriate display processing is called according to the control code included in the output data. Therefore, the received data from the standard output of the terminal display application can be appropriately displayed according to the control code.

According to a sixth aspect of the present invention, in the drawing processing method in the terminal emulator for an image forming apparatus according to the fifth aspect, the data holding processing step is an undefined length block of the control code in the received data. And the stream position is updated according to the length of the control code.

According to the sixth aspect of the present invention, in the data holding processing step, blocks of undefined length of the control code in the received data are compared, and the stream position is updated according to the length of the control code. , The received data composed of control codes of indefinite length can be easily parsed in the parse processing step.

Further, the invention according to claim 7 is a program for causing a computer to execute the method according to any one of claims 1 to 6, so that any one of the operations can be performed by the computer. it can.

Further, the invention according to claim 8 is the hardware resource used in the image forming process, an application for performing a user service related to the image forming process,
An image forming apparatus, comprising: a terminal emulator that emulates standard input / output to / from an operation panel at an application level; and a terminal display application that displays a terminal via the terminal emulator can be installed. Data holding means for temporarily holding the data received from the output in the memory and outputting the data in the order received, and processing the output data into drawing information for the terminal display application, and receiving data in the memory And a drawing processing unit that collectively draws the processed drawing information on the display unit of the operation panel at a predetermined timing according to the above state.

According to the invention of claim 8, there is provided an image forming apparatus capable of mounting a terminal display application for displaying a terminal via a terminal emulator, wherein the data holding means receives from the standard output of the terminal display application. The data is temporarily held in the memory, the data is output in the order in which it is received, the output data is processed by the drawing processing means into drawing information for the terminal display application, and a predetermined data is stored according to the state of the received data in the memory. Since the processed drawing information is collectively drawn on the display unit of the operation panel at the timing, the processed drawing information is not drawn each time, but the drawing information is collectively drawn to some extent at a predetermined timing. Even if the processing speed of drawing information is slow, there is little flicker on the screen and a natural display can be performed. .

The invention according to claim 9 is the hardware resource used in the image forming process, an application for performing a process unique to a user service related to the image forming process, the application and the hardware resource. And a control service for performing acquisition request, management, execution control, and image forming processing of the hardware resources commonly required by at least two of the applications when providing the user service. Image formation that includes an operation panel that performs input and drawing information output, and a terminal emulator that emulates standard input / output to the operation panel at the application level, and that can be equipped with a terminal display application that displays a terminal via the terminal emulator. And a data holding unit for temporarily holding the data received from the standard output of the terminal display application in the memory and outputting the data in the order of reception, and the drawing data for the output data for the terminal display application. And a drawing processing means for collectively drawing the processed drawing information on the display unit of the operation panel at a predetermined timing according to the state of the received data in the memory. .

According to the ninth aspect of the present invention, there is provided a multi-function peripheral in which a terminal display application for displaying a terminal via a terminal emulator can be installed, and data received from the standard output of the terminal display application by the data holding means. Is temporarily stored in the memory, the data is output in the order of reception, the output data is processed by the drawing processing means into the drawing information for the terminal display application, and the predetermined data corresponding to the state of the received data in the memory is processed. Since the processed drawing information is drawn together on the display of the operation panel at the timing, the processed drawing information is not drawn each time, but the drawing information is drawn together to some extent. Even if it is slow, there is little flicker on the screen and a natural display can be performed.

According to the tenth aspect of the present invention, in the image forming apparatus according to the eighth or ninth aspect, the data holding means sets the memory as a predetermined timing according to the state of the received data in the memory. When at least one of the case where the received data in the inside becomes empty and the case where the received data is not received in the memory for a certain time is satisfied, a drawing instruction signal is output to the drawing processing means, and the drawing processing means When the drawing instruction signal is received, the drawing information processed for the terminal display application is drawn on the display unit of the operation panel.

According to the tenth aspect of the present invention, when the received data in the memory becomes empty and the received data in the memory is set as a predetermined timing according to the state of the received data in the memory in the data holding means. When at least one of the conditions for not receiving the message for a certain period of time is satisfied, a drawing instruction signal is output to the drawing processing means, and the drawing information processed by the drawing processing means for the terminal display application is displayed on the display unit of the operation panel. Since the drawn information is drawn on the display unit, the processed drawing information is drawn to the display unit together in a certain amount, so that natural display with less flicker on the screen can be performed.

The invention according to claim 11 is the image forming apparatus according to any one of claims 8 to 10, wherein the drawing processing means processes the drawing information processed for the terminal display application. When drawing on the display part of the operation panel, it is characterized by redrawing using the row data whose display content has been changed.

According to the invention of claim 11, when the drawing processing means draws the drawing information processed for the terminal display application on the display part of the operation panel, the line data whose display content is changed is used. Since the drawing is performed again, efficient and quick drawing processing can be performed, and natural display with less screen flicker can be performed.

According to the twelfth aspect of the present invention, in the image forming apparatus according to any one of the eighth to eleventh aspects, the data holding unit parses the output data in a subsequent stage and outputs the output data. It is characterized by further comprising a parsing means for calling an appropriate display process in accordance with the control code included in.

According to the twelfth aspect of the present invention, a syntax analysis unit is provided after the data holding unit, and the output data is syntax-parsed to call an appropriate display process according to the control code included in the output data. Therefore, the received data from the standard output of the terminal display application can be appropriately displayed and processed according to the control code.

According to a thirteenth aspect of the present invention, in the image forming apparatus according to the twelfth aspect, the data holding means compares the unfixed length blocks of the control code in the received data to determine the length of the control code. It is characterized in that the stream position is updated according to the length.

According to the thirteenth aspect of the present invention, the data holding means compares the blocks of the control code of the unfixed length in the received data and updates the stream position according to the length of the control code. The received data composed of the long control code can be easily parsed in the parse processing step.

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a drawing processing method in a terminal emulator for an image forming apparatus, a program for causing a computer to execute the method, and an image forming apparatus will be described below with reference to the accompanying drawings. The details will be described.

(Embodiment 1) (Structure of Image Forming Apparatus) FIG. 1 is a block diagram showing a functional structure of an image forming apparatus (hereinafter referred to as a "multi-function peripheral") which is an embodiment of the present invention. . As shown in FIG. 1, the multifunction peripheral 100 includes a monochrome line printer (B & W LP) 101.
And a color line printer (Color LP) 102, and hardware resources 10 such as a scanner, a facsimile, a hard disk, a memory, and a network interface.
And a software group 110 including a platform 120 and an application 130.
It has and.

The platform 120 manages a control service that interprets a processing request from the application 130 to generate a hardware resource acquisition request and one or more hardware resources, and arbitrates the acquisition request from the control service. It has a system resource manager (SRM) 123 and a general-purpose OS 121.

The control service is formed by a plurality of service modules, and includes an SCS (system control service) 122, an ECS (engine control service) 124, an MCS (memory control service) 125, an OCS (operation panel control service) 126, and an FCS ( It is composed of a fax control service) 127, an NCS (network control service) 128, and the like. In addition,
The platform 120 has an application program interface (API) that enables a processing request from the application 130 to be received by a predefined function.

The general-purpose OS 121 is UNIX (registered trademark)
Is a general-purpose operating system, and executes each software of the platform 120 and the application 130 as processes in parallel.

The process of SRM123 is SCS122.
It also controls the system and manages resources. The process of the SRM 123 includes an engine such as a scanner unit and a printer unit, a memory, an HDD file, a host I / O (Centro I / F, a network I / F, an I / F).
(EEE1394 I / F, RS232C I / F, etc.)
It arbitrates and controls execution according to the request from the upper layer that uses the hardware resource of.

Specifically, the SRM 123 determines whether the requested hardware resource is available (whether it is not used by another request), and if it is available, the requested hardware resource is available. Tell upper layers that resources are available. Further, the SRM 123 performs hardware resource utilization scheduling in response to a request from the upper layer, and directly executes the request content (for example, paper conveyance and image forming operation by the printer engine, memory reservation, file generation, etc.). .

The process of SCS122 is application management,
It controls the operation unit, system screen display, LED display, resource management, interrupt application control, etc.

The process of the ECS 124 includes a monochrome line printer (B & W LP) 101 and a color line printer (Colo).
r LP) 102, scanner, facsimile, and other hardware resource 103 engines.

The process of the MCS 125 acquires and releases an image memory, uses a hard disk device (HDD), compresses and decompresses image data, and the like.

The FCS 127 process includes facsimile transmission / reception using the PSTN / ISDN network from each application layer of the system controller, and BKM (backup SRA).
Registration of various facsimile data managed in M) /
Quotation, fax reading, fax reception printing,
Provides an API for performing fusion transmission / reception.

The NCS 128 process is a process for providing a service that can be commonly used for applications that require network I / O, and distributes data received from the network side by each protocol to each application, It mediates when data is sent from the application to the network side.

The OCS 126 process is a process for controlling an operation panel (operation panel), which will be described later, which is a means for transmitting information between the operator (user) and the main body control, and a key is pressed from the display section of the operation panel (not shown). The key event function is acquired as a key event and the key event function corresponding to the acquired key is transmitted to the SCS 122. When the terminal display application 113 of the application 130 makes a request to the OCS 126, a drawing function for drawing and outputting various images and other functions for controlling the operation panel are registered in advance on the display unit of the operation panel. O described later
It has a CS function library. This OCS function library is implemented by being linked to each module of the application 130 and the control service. Note that all of the OCS 126 may be configured to operate as a process, or all of the OCS 126 may be configured as an OCS function library.

The application 130 is a page description language (PDL), PCL and Postscript (PS).
A printer application 111 which is an application for a printer having a printer, a copy application 112 which is an application for copying, a terminal display application (for example, a general-purpose Web browser) 113 which is an application for terminal display, and a facsimile application. Fax application 115, scanner application 116 that is a scanner application, and net file application 11 that is a network file application
7 and a process inspection application 118 which is a process inspection application.

The terminal display application 113 is the same as in the first embodiment.
This is an example of a general-purpose application to be ported to the multi-function peripheral 100 or a developed application, and is implemented via the terminal emulator 114 of the present invention provided at the application level on the API. Although this terminal display application 113 is not an essential requirement of the present invention, it can be installed without modification inside the application by emulation by the terminal emulator 114 described later. That is, a copying machine, a printer, a facsimile machine, or a multifunction machine 100 having the functions of them.
Does not have terminals corresponding to keyboards and displays, so it does not work even if you port a general-purpose terminal display application that is premised on those terminals (standard input / output). However, due to the emulation function of the terminal emulator 114, This is because the standard input / output of the terminal display application 113 is converted (redirected) by the terminal emulator 114 into data that can be handled by the operation panel of the ported multifunction peripheral.

(Structure of Terminal Emulator) FIG.
FIG. 3 is a block diagram showing a functional configuration and a data flow of the terminal emulator for the image forming apparatus of FIG. The terminal emulator 114 shown in FIG. 2 includes a reception FIFO queue 140 that is a characteristic component of the present invention that processes received data of standard output from a terminal display application (general-purpose Web browser, etc.) 113, and a syntax analysis unit. 141, terminal function processing unit 14
2. Text memory 143, drawing processing unit 144, OCS
A function library 145 and a function calling unit 146 are provided. In addition, the terminal emulator 114 issues an event message when an input operation is performed on a button or keyboard displayed on the input section of the operation panel 160, and converts this into a standard input of a mouse event or a key event, An event analysis unit 147 for notifying the terminal display application (general-purpose Web browser, etc.) 113,
A mouse input conversion unit 148, a key operation input conversion unit 149,
And a transmission FIFO queue 150 and the like.

First, in the first embodiment, the standard output related to the text information of the terminal display application 113 installed in the image forming apparatus is emulated by the terminal emulator 114 and drawn and displayed on the display unit of the operation panel 160. The flow up to and each component will be described.

(Reception FIFO Queue) The reception FIFO queue 140 is a FIFO (first-in first-out) memory which receives and stores the standard output reception data from the terminal display application 113 and outputs the reception data in the order of reception. Further, the reception FIFO queue 140 has a function of comparing an indefinite length block with respect to an indefinite length control code included in the received data, and updating the stream position when the control code is recognized as a corresponding control code. . This is because if the syntax analysis unit 141 in the next stage attempts to directly analyze the received stream from the terminal display application 113, the received data contains a control code of indefinite length, so that it can be easily analyzed as it is. Because you can't. Thus, the reception FIF of the present invention
The O-queue 140 buffers the standard output reception data (data including the control code) from the terminal display application 113, compares the undefined length blocks of the control code, and updates the stream position, so that the next stage The syntactic analysis unit 141 can easily perform syntactic analysis according to the length of the control code. Here, the reception FIFO
As an example of the function group of the reception stream object of the queue 140, character string comparison (IsCmpString), character comparison (I
sCmpChar), character evaluation acquisition (IsGetChar), character acquisition (G
etChar), numerical value acquisition (GetNum), stream position change (SetOffset), etc. are used.

Further, the reception FIFO queue 140 has a function of instructing a drawing processing section 144, which will be described later, to the display section of the operation panel 160 about drawing timing. That is, as shown in FIG. 2, the reception FIFO queue 140 sends the drawing instruction signal 1 to the drawing processing unit 144.
When 54 (broken line arrow) is transmitted, the drawing processing unit 144
It is characterized in that the drawing information processed for the terminal display application is collectively drawn on the display unit of the operation panel 160 at the timing. Currently, as a drawing method to be displayed on the operation panel of the image forming apparatus, a function is called to the OCS function library to generate drawing information. However, since the drawing information generation (processing) speed is slow. Although it is good to display still images such as operation information and error displays, when the screen is scrolled or an image with changes is displayed, the screen has to be an unnatural display screen such as flicker.

Therefore, in the first embodiment, the generated drawing information is not drawn each time in order to prevent an unnatural display screen when scrolling the screen or displaying an image with changes. When the drawing information processed for the terminal display application is accumulated to some extent, the display unit of the operation panel 160 is instructed to perform drawing collectively. In the first embodiment, the drawing timing is set to a predetermined timing according to the state of the reception data in the reception FIFO queue 140.

FIG. 3 is a flow chart for explaining a timing operation in which the drawing processing section performs the drawing processing on the display section. Specifically, as the timing at which the reception FIFO queue 140 transmits the drawing instruction signal 154 to the drawing processing unit 144, the reception FIFO from the terminal display application 113 is received.
When the standard output is no longer output (interrupted) to the O queue 140, or the reception FIFO queue 140
The control code inside is empty (standard output is no longer output from the terminal display application 113, and the reception FIFO queue 140
All the control codes inside are output to the syntax analysis unit 141)
You can think about the time. In this case, since the processing is performed using the condition of, as shown in FIG.
It is judged whether or not there is received data in the queue 140, that is, whether or not the received data is received (step S9).
0) If the received data does not come in, it is further determined in step S91 whether the received data remains in the reception FIFO queue 140, and if either of step S90 and step S91 is YES. Returning to step S90, the drawing instruction signal 154 is not transmitted. Further, both step S90 and step S91 are N
In the case of O, it means that the inside of the reception FIFO queue 140 has become empty, and therefore the processing shifts to the step S92, and the reception F
A drawing instruction signal 154 is transmitted from the IFO queue 140 to the drawing processing unit 144. The drawing processing unit 144 collectively draws the drawing information generated by the processing by the drawing processing unit 144 in advance at that timing and draws the drawing information on the display unit of the operation panel 160 (step S93). in this way,
Since the drawing information is collectively drawn at each predetermined timing, it is possible to suppress the flickering of the screen and the unnaturalness of the display.

(Syntax Analysis Unit) Next, the syntax analysis unit 141
Is a syntactic analysis unit that is arranged in the latter stage of the reception FIFO queue 140 described above, analyzes the received data from the standard output of the terminal display application 113, and calls an appropriate process according to the control code. Also called parser). The syntax analysis process here determines whether the control code included in the standard output reception data is a terminal control code or an extended control code (ESC code), and if it is a terminal control code, the terminal function processing unit described below. The process of 142 is called, and if it is the extended control code, the process of the function calling unit 146 described in the second embodiment is called.
In this way, the syntax analysis unit 141 performs syntax analysis of the standard output received data, and the processing is divided into two types of display processing according to the control code included in the received data. Various screens can be displayed on the department. In particular, in the display processing in the function calling unit 146 described later, since it is possible to perform the soft keyboard processing and the image pasting processing which cannot be processed only by the terminal function processing unit 142 described below, the drawing display function of the operation panel 160 is further improved. It can be multi-functional.

(Terminal Function Processing Unit) The terminal function processing unit 142 shown in FIG. 2 is also called a termcap processing unit, and is a control code and text information included in the standard output received data from the terminal display application 113. (Character code) is used to add an attribute (drawing attribute) relating to drawing based on the control code to the text information. This attribute includes distinction between key input and mouse input, coordinate position, underline information, character attribute information (corresponding to color designation information), or input form information such as single-click conversion to double-click. Text memory 143 in the next stage with the attribute added to the code
Stored in. In addition, the terminal function processing unit 142 has a function of setting screen control information according to the specifications of the terminal. The screen control information includes information for adjusting the terminal specifications such as the number of lines, the number of columns, availability of backspace, and information for screen control such as screen deletion, cursor movement, and underline. The text information for screen display stored in the text memory 143 at the next stage can be controlled.

(Text memory) Text memory 143
Is composed of a text RAM or the like, and can store text information in a state in which a drawing attribute for screen display is added and perform basic screen control.

FIG. 4 is a diagram showing a state in which the character code to which the drawing attribute is added is stored in the text memory 143. As shown in FIG. 4, the operation panel 16
The display area of 0 is composed of 16 columns × 79 rows, and a character code (char ch) and an attribute (int attr) are added to each character, and a text memory (text RA
M) 143 includes a character code, a line (row) and a column (row) indicating the display position of the character, and a check bit (* check) for checking whether or not the display content is changed in units of lines.
Etc. are stored. Therefore, when the display content is changed, the changed line can be easily identified only by checking the presence or absence of the check bit, so that only the data of the changed line can be efficiently rewritten.

(Drawing processing unit) Next, the drawing processing unit 1 of FIG.
Reference numeral 44 is for processing the text information stored in the text memory 143 for the terminal display application 113 and performing drawing processing on the display unit of the operation panel 160.
When performing the drawing process, the drawing processing unit 144 registers the drawing function for drawing an image such as a button or a character string in the OCS.
Drawing information is generated by calling a drawing function to the function library 145.
Temporarily held in 5. And, as mentioned above,
Each time the drawing processing unit 144 receives the drawing instruction signal 154 from the reception FIFO queue 140, the drawing information processed and held in the OCS function library 145 is collectively drawn on the display unit of the operation panel 160. Here, since the application of the Web browser is used as the terminal display application 113, it is necessary to operate the screen such as the hyperlink and the FORM input displayed on the browsing screen. In the first embodiment, an LCD screen capable of touch panel input is adopted in the display unit of the operation panel 160 of the multifunction peripheral 100. However, since the LCD screen does not have a mechanism for acquiring coordinates of touch panel input, touch panel input is performed. It is necessary to display in advance the necessary parts (hyperlinks and FORM input parts) in the form of buttons.

FIG. 5 is a diagram showing an example of a browsing screen when the terminal display application is executed on the terminal emulator. As shown in FIG. 5, in the case of the hyperlink image 151, the drawing processing unit 144 generates a button in which characters are underlined in blue (not displayed in color in the figure) and the FOR button is displayed.
In the case of the M input image 152, a red (non-color display) reverse character button can be generated, and in the case of the inline image 153, a green (non-color display) reverse character button can be generated. However, even if such a button is generated and a screen operation is performed from the button, the terminal display application 1 does not change as it is.
The operation contents cannot be notified to the 13 side. Therefore,
As will be described later, a button is displayed for a specific character string, and when this button is operated, the input is converted into a double click of the mouse and the terminal display application 11
It employs a mechanism to notify 3rd party.

Next, FIG. 6 is a flow chart for explaining the operation up to displaying on the display section of the operation panel in response to a terminal display request from the terminal display application. As shown in FIG. 6, when a line display request (wd_putline) is issued from the terminal display application 113 (step S100), the line to be displayed is deleted (step S102), and the character string including the character attribute is sequentially arranged from the first character. A check is performed (step S104), and when the character string including the character attribute is changed compared with the previous character (step S106), the character attribute check (attr) is performed in step S108.

The character attribute check is set here (character attribute information) so that the character color (color designation information) is changed to the following specifications for display. That is, the hyperlink is displayed as a button in which blue characters are underlined, the inline image is displayed as a green inverted character button, and normal characters are displayed as black characters.

As a result of checking the character attribute in step S108, if the character attribute is black, as shown in step S110, a character string is displayed at a predetermined (x, y) coordinate position (x is a column position, y is a row position). Display in format.

As a result of the character attribute check in step S108, in the case of blue, as shown in step S112, a character string is displayed in a button format at a predetermined (x, y) coordinate position, and display position information is stored. At the same time, it is registered as a touch code to be notified when the button is pressed.

Next, as a result of the character attribute check in step S108, in the case of green, as shown in step S114, the character string is displayed in a reverse character button format at a predetermined (x, y) coordinate position, and the display position is changed. The information is stored and registered as a touch code for notifying when the button is pressed.

Then, a function is called in the OCS function library on the basis of the result of checking these character attributes and displayed on the LCD screen of the operation panel (step S116). Then, in step S118, it is determined whether or not the end of the character string including the character attribute has been investigated, and if the end has not been investigated, the process returns to step S104 and the above processing is repeated. Further, even when the character attribute is not changed as compared with the character one character before in step S106, it is determined in step S118 similarly to the above. Step S1
If the end of the character string is examined in 18, the process ends. In this way, the drawing processing unit 144 of the terminal emulator 114 draws and displays the screen assumed by the terminal display application 113 on the display unit of the operation panel 160, and at least a part of the display is displayed in the button format. As a result, it is possible to obtain a display screen in which hyperlinks and the like can be used as in the browsing screen.

As described above, according to the first embodiment, even in an image forming apparatus such as a multi-functional peripheral, a general-purpose terminal display application corresponding to the terminal function is mounted via the terminal emulator, It can be easily ported with almost no changes inside the application. Further, in the first embodiment, the reception FIFO is provided in the terminal emulator 114.
By arranging the O queue 140, the received data of standard input / output from the terminal display application 113 is buffered, the undefined length block of the control code included in the received data is compared, and the stream position is updated. It is possible to easily perform the syntax analysis according to the length of the control code in the analysis unit 141. Further, by looking at the storage state of the reception data in the reception FIFO queue 140, the drawing information generated is displayed every time the reception data (control code) becomes empty or the reception data (control code) is no longer input. Since the images are collectively drawn on the display unit of the operation panel 160, it is possible to suppress the flickering of the screen and the unnaturalness of the display.

(Second Embodiment) In the second embodiment, when the control code included in the received data of the standard output is the extended control code by the syntax analysis section 141, the process in the function calling section 146 is called. Be done.

(Function Calling Section) The function calling section 146 displays a soft keyboard on the display section of the operation panel 160, pastes an image, etc. when the received data contains an extended control code (ESC code). It can be carried out. Here, the soft keyboard is a keyboard in which a keyboard is displayed on the LCD screen of the operation panel 160 and the same key input operation as that of the hardware keyboard can be performed using a touch panel or the like.

The soft keyboard control by the function calling unit 146 can easily display the soft keyboard on the display unit of the operation panel 160 by using the terminal control code, and the input from the displayed soft keyboard is possible. Terminal display application 11 using as standard input
3 can be notified. The display operation of the soft keyboard and the key input operation from the displayed soft keyboard will be described below with reference to FIGS. 2 and 7 to 10.

FIG. 7 is a diagram showing an example of a control code format output from the terminal display application 113 as standard output for displaying the soft keyboard, and FIG. 8 is displayed on the display unit of the operation panel 160. FIG. 9 is a diagram showing a display example of a soft keyboard, FIG. 9 is a flowchart explaining a standard output operation for displaying the soft keyboard, and FIG. 10 shows an operation of converting an input from the soft keyboard into a standard input. It is a flowchart explaining.

(Soft keyboard processing) First, in order to display the soft keyboard, as shown in FIG. 7, a control code is output from the terminal display application 113 of FIG. 2 as a standard output (step S140 of FIG. 9). . This control code starts from the designated code of the function calling unit 146 that calls the function, as shown in (a) to (g) of FIG.
It consists of seven parts up to the input area termination character code.

Using the control code of this soft keyboard, the function calling unit 146 sends the OCS function library 145.
Is converted to a soft keyboard request function (step S142 in FIG. 9) by
A soft keyboard is displayed on the LCD screen of the operation panel 160 (step S144 in FIG. 9). This is because the control code of the soft keyboard is the control code for executing the soft keyboard request function (SysSoftOpen).

The operation panel 160 also includes
A soft keyboard is displayed as shown in FIG. 8, and a touch panel is used on the panel surface. Therefore, the operator can perform the key input simply by looking at the soft keyboard on the display unit of the operation panel 160 and touching the panel portion at the key position to be input (step S150 in FIG. 10).

If there is a key input, the key input determination is performed in step S152, and if it is determined that a button other than the cancel button or the OK button is pressed, step S150.
Return to. Further, if it is determined in step S152 that the OK button 160a of the soft keyboard in FIG. 8 is pressed, the input character string is converted into key input by the key operation input conversion unit 149 in FIG. 2 (step S154), and the soft keyboard Return code 0x0a is added to the end of the data input from.

If it is determined in step S152 that the cancel button 160b of the soft keyboard shown in FIG. 8 is pressed, the input becomes invalid and 0x03 corresponding to the Control-C code is notified (step S158).

The key input converted in step S154 and the notification of Control-C (0x03) in step S158 become standard input of the terminal display application 113 via the transmission FIFO queue 150 in FIG. 2 (step S156). ).
That is, the data input from the soft keyboard is
This means that the terminal display application 113 has been redirected as the standard input.

(Image pasting process) Next, a copying machine, a printer, a facsimile machine, or a conventional copying machine, or
An image forming apparatus such as a multi-function peripheral does not have an image window capable of displaying an image (such as a display section of an operation panel). Therefore, in the third embodiment, an image pasting process for displaying an image image can be performed as one of the above-described extended control code processes.

FIG. 11 shows an ES for displaying an image.
FIG. 13 is a diagram showing an example of a C code format, and FIG. 12 is a diagram showing an example of a GIF file for image display.
FIG. 3 is a diagram illustrating an example of a program for displaying the GIF file of FIG. 12 on the screen, and FIG. 14 is an example of an image display displayed on the display unit of the operation panel 160 by executing the program of FIG. FIG.

First, in order to display a desired image at a predetermined position on the display screen of the operation panel 160, as shown in FIG.
The ESC code shown in 1 is output from the terminal display application 113 of FIG. 2 as a standard output. As shown in (a) to (e) of FIG. 11, the ESC code is composed of five parts starting from the designated code of the function calling unit 146 that calls the function and ending with the termination character code.

Next, as a GIF file, ab in FIG.
The program for displaying c.gif (FIG. 13) uses the ESC code of FIG. 11 for instructing the image display to display the abc.gif image of FIG. 12 on the operation panel 160.
The image display position and the image file are designated as shown in FIG. 13 so that the image is displayed at the coordinates (x, y) = (50, 50) on the display section. Further, the program in FIG. 13 means that the program ends when the Q character is received from the standard input. In FIG. 13, the image display uses the icon registration function to artificially display the image window. Since it has been realized, it indicates that the image window and the image registration must be discarded when the image display is terminated.

As described above, by executing the program shown in FIG. 13, the image of the GIF file as shown in FIG. 12 is pasted at a predetermined position on the display portion of the operation panel 160 as shown in FIG. Can be displayed.

As described above, when various images displayed on the display unit of the operation panel 160 are input from the touch panel or the like, the events are converted into standard input via the terminal emulator 114. , Is input to the terminal display application 113. This will be briefly described with reference to FIG. 2. For example, the operation panel 160 has a display unit that employs a touch panel that also serves as an input unit for inputting coordinate values when the panel surface is touched. An event message indicating that the button or key is pressed when the underline or button, or a soft keyboard as described below, is displayed at the specified position of the, and the coordinate values corresponding to those button positions or key positions are input. Can be generated.
That is, when the OCS 126 shown in FIG. 2 obtains a key event message from the input unit of the operation panel 160, it sends the event function corresponding to the obtained key to the SC.
Send to the process of S122. And SCS122
In the process (1), the event function received from the OCS 126 is transmitted to the event analysis unit 147 of the terminal emulator 114. The same applies to mouse events.

The event analysis unit 147 analyzes whether the input event function is a key input or a mouse input by a received event, and in the case of a key input, the event is sent to the key operation input conversion unit 149, and in the case of a mouse input, the event. The event is sent to the mouse input conversion unit 148.

The mouse input conversion unit 148 converts the mouse event distributed by the event analysis unit 147 into the standard input of the terminal display application 113, and the key operation input conversion unit 149 is distributed by the event analysis unit 147. The key event is converted into the standard input of the terminal display application 113, and the transmission FIFO queue 150 is converted.
Is sent to the terminal display application 113 via.

As described above, according to the second embodiment, in addition to the effects of the first embodiment, the received data of the standard output from the terminal display application 113 is transmitted via the reception FIFO queue 140 to the syntax analysis unit 141. The parsing of the control code is performed by the above, and an appropriate drawing process corresponding to the extended control code can be called and processed. Therefore, the soft keyboard process or image that cannot be processed by the terminal function processing unit 142 described in the first embodiment. Paste processing can be performed.

(Third Embodiment) Next, in the third embodiment, a general-purpose terminal display application is ported to an image forming apparatus such as a multi-function peripheral to draw and display a browsing screen or the like on the display unit of the operation panel. In this case, the following method is used to enable porting with almost no change to the terminal display application.

(Porting form of terminal display application) FIG.
It is a figure when the application corresponding to a terminal function is ported to the apparatus which does not have a terminal device, (a) is a figure when an application content is changed, (b) is a figure when a terminal emulator is interposed. When porting an application that supports terminal functions to a device to which a terminal device (keyboard or display) is connected, it can be ported without changing the application. However, as in the present embodiment, a terminal function-compatible application is a device (copy machine,
If you try to port it to a printer, a facsimile machine, or a multi-function peripheral, etc., the only input / output destination of data is the display part or the input part of the operation panel, and even if you port the app corresponding to the terminal function, it will not work. Therefore, as shown in FIG. 15A, the terminal function compatible application 1
API to access the terminal device inside 73
It is necessary to change the application itself so as to substitute for the terminal device using 176 (application change part 173
a).

However, in the third embodiment, in order to save the trouble of changing the inside of the application when porting the application, as shown in FIG. 15B, the terminal emulator 175 is replaced with the terminal function corresponding application 173 and the API 176. The standard input / output conversion process (emulation) is performed so that the standard input / output of the terminal function compatible application 173 is compatible with even if the standard input / output is ported to a multi-function peripheral having no keyboard or display. There is. As a result, even the terminal function compatible application 173 can be ported to an image forming apparatus or the like with almost no change inside the application.

(Method of adding GUI function) FIG.
Is a diagram in the case of porting a terminal function compatible application to a device without a terminal device and further adding a GUI function,
(A) is a diagram in which a GUI function is added to the application, and (b) is a diagram in which a GUI function is added to the terminal emulator.
The terminal function compatible application is an interface for performing text operations (CUI: character user interface), but many functions such as button operation, image display and touch panel are installed as extended functions in addition to text display. ing. Therefore, when changing to an application compatible with a GUI (graphic user interface) using such various functions, the API is directly operated for the application to add a user interface (GUI) for graphics. There is a need.
Therefore, as an additional form, for example, as shown in FIG.
GUI17 by adding the part which operates 6 directly
3b is added, and as shown in FIG. 16 (b),
There are two possible methods of adding the GUI 175a corresponding to the application corresponding to the terminal function in the terminal emulator 175. The addition method of FIG. 16A requires portability because it is necessary to grasp the operation inside the application corresponding to the terminal function and make a change and also to grasp the operation of the API 176. On the other hand, the addition method of FIG. 16B has an advantage that porting can be easily performed without the need to change the terminal function compatible application 173.

Therefore, in the third embodiment, when a general-purpose application corresponding to the terminal function is ported, the application is changed to a GUI-compatible application. A specific method of adding a GUI function in this case will be described with reference to FIG.

In FIG. 2, a characteristic configuration when a GUI function is added is a CU corresponding to an individual application.
It is provided with a dynamic graphic conversion library 180 for changing I to GUI. This graphic conversion library 180 is used by the terminal display application 113 and A
It is interposed between PI (not shown) and GUI for GUI
It has the function of changing to I.

Further, in the graphic conversion library 180 shown in FIG.
A display screen management unit 181 that manages a display screen on the CS function library 145 is provided. This display screen management unit 1
Reference numeral 81 is for converting the standard input to the terminal display application 113 into stream data and notifying it by changing the operation command of the terminal display application 113 into a button, and further, for example, a browser screen displayed by the terminal display application 113. It also manages the handles of child windows.

The graphic conversion library 180 of FIG.
The drawing processing unit 144 therein processes the text information managed by the text memory 143 for the terminal display application and draws it on the LCD screen of the operation panel 160. Since the function of the drawing processing unit 144 has been described in the first embodiment, the description thereof is omitted here.

Further, the key operation input conversion unit 149 in the graphic conversion library 180 of FIG. 2 generates an object for managing the display layout of the LCD screen of the operation panel 160, which has been described in the second embodiment. The description is omitted here.

Further, the mouse input conversion unit 148 in the graphic conversion library 180 of FIG. 2 converts the touch input on the LCD screen of the operation panel 160 into the mouse input, which has been described in the second embodiment. The description is omitted here.

As described above, according to the third embodiment, when the application is ported, the terminal emulator 175 is set to the terminal function compatible application 173 and the API 176.
By interposing between
Since the standard input / output of 73 can be converted (emulated), it can be easily ported without changing inside the application.

Further, according to the third embodiment, the application corresponding to the terminal function is the interface (CUI) for performing the text operation, but the button operation, the image display, the touch panel, etc. are extended functions other than the text display. Since many functions are installed, it is possible to add GUI in the terminal function compatible application (Fig. 16 (b)).
(Refer), it can be easily ported without changing the inside of the application, and a GUI function can be added.

In the above-described first to third embodiments, the example in which the multi-function peripheral is used as the device for mounting the terminal display application has been described, but the present invention is not necessarily limited to the multi-function peripheral, and the copying machine is not limited thereto. The present invention can also be applied to a single image forming apparatus having an operation panel such as a printer, a facsimile machine, or a scanner, and the same advantageous effects as described above can be obtained.

[0100]

As described above, according to the first aspect of the present invention, the processed drawing information is not drawn each time, but the drawing information is collectively drawn to some extent at a predetermined timing. Even if the processing speed of information is slow, there is little flicker on the screen, and a natural display can be performed.

According to the second aspect of the invention, the drawing information is not drawn each time even in the case of a multi-function peripheral, but rather the drawing information is drawn to some extent at a predetermined timing. Even if the processing speed is slow, there is little flicker on the screen, and a natural display can be performed.

According to the third aspect of the present invention, the processed drawing information is collected to some extent and drawn at each predetermined timing, so that natural display with little screen flicker can be performed.

According to the fourth aspect of the invention, efficient and quick drawing processing can be performed, and natural display with less screen flicker can be performed.

Further, according to the invention of claim 5, the received data from the standard output of the terminal display application can be appropriately displayed and processed according to the control code.

According to the invention of claim 6, the received data composed of the control code of indefinite length can be easily parsed in the parse processing step.

According to the invention of claim 7, it is possible to cause a computer to execute the operation of any one of claims 1 to 6.

According to the eighth aspect of the present invention, the processed drawing information is not drawn each time, but the drawing information is collectively drawn to some extent at a predetermined timing, so that the processing speed of the drawing information is slow. Even if there is little flicker on the screen, a natural display can be performed.

Further, according to the invention of claim 9, even in the multi-function peripheral, the drawn drawing information is not drawn each time, but the drawing information is drawn collectively to some extent.
Even if the drawing information processing speed is slow, it is possible to perform natural display with little flickering on the screen.

Further, according to the invention of claim 10,
Since the processed drawing information is collectively drawn to the display unit to some extent, it is possible to perform natural display with little flicker on the screen.

Further, according to the invention of claim 11,
Efficient and quick drawing processing can be performed, flicker on the screen is reduced, and natural display can be performed.

Further, according to the invention of claim 12,
The received data from the standard output of the terminal display application can be appropriately displayed and processed according to the control code.

Further, according to the invention of claim 13,
It is possible to easily parse the received data composed of the control code of indefinite length in the syntax analysis processing step.

[Brief description of drawings]

FIG. 1 is a block diagram showing a functional configuration of an image forming apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a functional configuration and a data flow of the terminal emulator for the image forming apparatus in FIG.

FIG. 3 is a flowchart illustrating a timing operation in which a drawing processing unit performs a drawing process on a display unit.

FIG. 4 is a diagram showing a state in which a character code to which an attribute is added is stored in a text memory.

FIG. 5 is a diagram showing an example of a browsing screen when a terminal display application is executed on a terminal emulator.

FIG. 6 is a flowchart illustrating an operation of displaying on the operation panel in response to a terminal display request from the terminal display application.

FIG. 7 is a diagram showing an example of a control code format output as a standard output from a terminal display application for displaying a soft keyboard.

FIG. 8 is a diagram showing a display example of a soft keyboard displayed on an operation panel.

FIG. 9 is a flowchart illustrating a standard output operation for displaying a soft keyboard.

FIG. 10 is a flowchart illustrating an operation of converting an input from a soft keyboard into standard input.

FIG. 11 is a diagram showing an example of an ESC code format when displaying an image.

FIG. 12 is a diagram showing an example of a GIF file for image display.

13 is a diagram illustrating an example of a program for displaying the GIF file of FIG. 12 on a screen.

FIG. 14 is a diagram showing an image display example displayed on an operation panel by executing the program of FIG.

15A and 15B are diagrams showing a case in which an application compatible with a terminal function is ported to a device without a terminal device, in which FIG. 15A is a view when the content of the application is changed, and FIG. 15B is a view when a terminal emulator is interposed. Is.

FIG. 16 is a diagram showing a case where an application supporting terminal functions is ported to a device that does not have a terminal device and a GUI function is added, and FIG.
(B) is a diagram in which a GUI function is added in the terminal emulator.

[Explanation of symbols]

100 MFP 101 monochrome line printer (B & W LP) 102 Color line printer (Color LP) 103 Other hardware resources 110 software group 111 Printer app 112 Copy App 113 Terminal display app 114 terminal emulator 115 fax apps 116 Scanner App 117 Net File App 118 Process inspection application 120 platform 121 General-purpose OS 122 SCS 123 SRM 124 ECS 125 MCS 126 OCS 127 FCS 128 NCS 130 applications 140 Receive FIFO queue 141 Parser 142 Terminal Function Processing Unit 143 text memory 144 Drawing processing unit 145 OCS function library 146 Function call part 147 Event Analysis Department 148 Mouse Input Converter 149 Key operation input conversion unit 150 transmit FIFO queue 154 Drawing instruction signal 160 Operation panel 180 Graphic conversion library 181 Display screen management unit

Claims (13)

[Claims] 1. An image forming apparatus having hardware resources used in image forming processing, comprising an application for performing a user service for image forming processing, and operating on an image forming apparatus capable of mounting a terminal display application. A drawing processing method in a terminal emulator for use, wherein the received data from the standard output of the terminal display application is temporarily held in a memory, and a data holding processing step of outputting the data in the order of reception is performed; Data processing step of processing into drawing information for the terminal display application, and drawing information processed for the terminal display application are collectively drawn on the display unit at a predetermined timing according to the state of the received data in the memory. An image forming apparatus characterized by including a drawing processing step, Drawing processing method in use terminal emulator. 2. A hardware resource used in an image forming process, a process of an application that performs a process unique to a user service related to the image forming process, and an intervening process between the application and the hardware resource. When providing the user service, a process of a control service that performs acquisition request, management, execution control, and image forming processing of the hardware resources commonly required by at least two applications, and operation input and drawing information output A drawing processing method in a terminal emulator for an image forming apparatus which operates on an image forming apparatus capable of mounting a terminal display application, the method including: Holding in memory and receiving A data holding processing step of outputting data in a predetermined order, a data processing processing step of processing the output data into drawing information for the terminal display application, and at a predetermined timing according to the state of the received data in the memory, A drawing processing step of collectively drawing drawing information processed for the terminal display application on the display unit of the operation panel, and a drawing processing method in a terminal emulator for an image forming apparatus. 3. The drawing processing step has a predetermined timing according to a state of received data in the memory,
The drawing information is drawn on the display unit when at least one of the condition that the received data in the memory is empty and the condition that the received data is not received in the memory for a certain time is satisfied. The drawing processing method in the terminal emulator for an image forming apparatus according to Item 1 or 2. 4. The drawing processing step redraws using line data whose display content has been changed as drawing information to be drawn on the display unit. A drawing processing method in the terminal emulator for an image forming apparatus described. 5. Following the data retention processing step,
5. The method further comprises a parsing processing step for parsing the output data and calling an appropriate display processing according to a control code included in the output data. A drawing processing method in the terminal emulator for an image forming apparatus according to. 6. The data holding processing step according to claim 5, wherein the block of indefinite length of the control code in the received data is compared and the stream position is updated according to the length of the control code. Processing method in a terminal emulator for an image forming apparatus of the above. 7. A program for causing a computer to execute the method according to any one of claims 1 to 6. 8. A terminal including a hardware resource used in image forming processing, an application for performing a user service related to the image forming processing, and a terminal emulator for emulating standard input / output to / from an operation panel at an application level. An image forming apparatus capable of mounting a terminal display application for displaying a terminal via an emulator, wherein data received from the standard output of the terminal display application is temporarily stored in a memory, and the data is output in the order of reception. And a data holding unit for processing the output data into drawing information for the terminal display application, and collectively processing the processed drawing information at a predetermined timing according to the state of the received data in the memory. Draw on the display An image forming apparatus comprising: the image processing means. 9. A hardware resource used in an image forming process, an application for performing a process unique to a user service related to the image forming process, and the user interposed between the application and the hardware resource. When providing services, a control service that performs acquisition request, management, execution control, and image forming processing of the hardware resources commonly required by at least two applications, and an operation panel that performs operation input and drawing information output And a terminal emulator that emulates standard input / output to / from an operation panel at an application level, and an image forming apparatus capable of mounting a terminal display application that displays a terminal via the terminal emulator. Data holding means for temporarily holding the data received from the standard output of the application in the memory and outputting the data in the received order; and processing the output data into drawing information for the terminal display application and storing the data in the memory. The image forming apparatus further comprises: drawing processing means for collectively drawing the processed drawing information on the display unit of the operation panel at a predetermined timing according to the state of the received data. 10. The data holding means sets a predetermined timing according to a state of received data in the memory,
A drawing instruction signal is output to the drawing processing means when the received data in the memory becomes empty and at least one of the cases where the received data is not received in the memory for a certain period of time is satisfied, and the drawing is performed. 10. The image forming apparatus according to claim 8, wherein the processing unit draws the drawing information processed for the terminal display application on the display unit of the operation panel when receiving the drawing instruction signal. 11. The drawing processing means, when drawing the drawing information processed for the terminal display application on the display section of the operation panel, redraws using the line data whose display content has been changed. The image forming apparatus according to claim 8, wherein the image forming apparatus is an image forming apparatus. 12. The data holding means further comprises a syntax analysis means at a subsequent stage of the syntax analysis of the output data and calling an appropriate display process according to a control code included in the output data. The image forming apparatus according to claim 8. 13. The data holding means compares the indefinite length blocks of the control code in the received data, and updates the stream position in accordance with the length of the control code. Image forming apparatus.