JPH1134439A - Printer device - Google Patents

Abstract

(57) [Summary] The present invention relates to a printer device, and when emulation data different from the emulation mode set in the device is input, the data is discarded without printing, eliminating dust printing, and The user or the like can be notified that the emulation is different. A reception data analysis unit (9) for analyzing input data and extracting print format data and print data, and a paper size / paper feed for determining whether or not the print format data includes paper size / feed port designation information. An emulation judging unit (print format creating unit 12) and an emulation judging unit 1 for judging that the emulation is different if there is no paper size / paper inlet designation information based on the judgment result
0, and a data discarding unit 13 for discarding print data without printing it when the emulation is judged to be different by the emulation judging means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer which is connected to a host computer and prints print data transferred from the host computer based on a command issued by the host computer.

In recent years, with the spread of printer apparatuses, it has been demanded that a plurality of emulation modes can be set and that printout can be performed in a print mode of each company. However, in reality, it is difficult to realize the above-mentioned request, and waste such as dust printing when the emulation mode is different has occurred. Therefore, improvement in this point has been demanded.

[0003]

2. Description of the Related Art A conventional example will be described below. §1: Description of Conventional Example 1—See FIG. 5 FIG. 5 is an explanatory diagram of Conventional Example 1. Hereinafter, an example of a conventional printer will be described with reference to FIG. In this example, a plurality of personal computers (hereinafter, referred to as "PCs") 2-1 and 2-2 are used as host computers,
This is a system in which one printer device 1 is connected to these personal computers 2-1 and 2-2.

The printer 1 includes an operation panel 5, a received data analysis unit 9, a print data creation unit 11, a print format creation unit 12, a printer mechanism unit 14, and the like. The operation panel 5 includes a display panel (for example, a liquid crystal display panel) 6.
, An emulation switching unit 7 and a key operation unit 3.

[0005] The operation panel 5 is a panel for the operator to operate. The key operation unit 3 is a panel for the operator to perform key operations.
Is for the operator to set the emulation mode. The display panel 6 displays various types of information.

The received data analysis unit 9 analyzes the data transferred from the personal computer 2-1 or 2-2 to extract print format data and print data, transfers the print format data to the print format creation unit 12, and prints the print format data and print data. The data is for controlling the transfer to the print data creation unit 11 and the like.

The print format creating section 12 creates a print format based on the print format data transferred from the received data analyzing section 9 and transfers the print format to the print data creating section 11. The print data creation unit 11 processes the print data transferred from the reception data analysis unit 9 based on the print format transferred from the print format creation unit 12, and creates print data that matches the format to be actually printed. Things. The printer mechanism unit 14 prints the print data transferred from the print data creation unit 11 on a print sheet and outputs the print data.

[0008] The printer having the above configuration operates as follows. When starting printing, the personal computer 2-1 or 2-2
Issues a command to the printer device 1 and transfers print format data, print data, and the like. In the printer device 1, the reception data analysis unit 9 analyzes the data transferred from the personal computer 2-1 or 2-2. Then, the print format data and the print data are extracted by the analysis, the print format data is transferred to the print format creating unit 12, and the print data is
Transfer to 1.

The print format creation unit 12 creates a print format based on the print format data transferred from the received data analysis unit 9 and transfers the print format to the print data creation unit 11. Thereafter, the print data creation unit 11 processes the print data transferred from the reception data analysis unit 9 based on the print format transferred from the print format creation unit 12, and creates print data that matches the print format. Thereafter, the created print data is transferred to the printer mechanism 14, and the printer mechanism 14 prints the print data on print paper and outputs the print data.

In the printer 1, the emulation mode can be set by switching operation of the emulation switching section 7. After setting the emulation mode,
Printing processing is performed according to the emulation mode set in the printer device 1. However, even when print data of an emulation different from the set emulation mode is transferred from the personal computer 2-1 or 2-2, printing is performed and wasteful paper is output as dust printing.

That is, since the emulation determination is not performed in the printer 1, all data input to the printer 1 is printed even if the emulation is different. For this reason, dust printing as described above has been performed. Therefore, conventionally, proposals for improving the above-described dust printing have been made. Less than,
Such a proposal will be described.

§2: Description of Conventional Example 2 The outline of the invention described in JP-A-6-64252 (hereinafter referred to as “Conventional Example 2”) is as follows. Conventionally,
The selection of the emulation program is usually made directly by the operator on the operation panel. However, if the operator performs an erroneous operation when selecting the emulation program, the page printer may run away. In such a case, no countermeasure has been taken as an operation error of the operator.

Therefore, when such a runaway occurs, tens of sheets of paper are wasted depending on print information. According to the present invention, in a printer capable of printing in the emulation mode, runaway of the printer due to the above-described setting error is prevented, and resetting of printing is facilitated.

For this reason, in a printing apparatus capable of printing in an emulation mode enabling selective connection to various computer systems in addition to the native mode, means for storing or setting an emulation program is provided. Means for receiving print information from the selected computer system, means for printing the print information according to the emulation program, and means for determining whether the print information conforms to the printing environment set by the emulation program, , The printing is stopped, and the print information received so far is discarded.

§3: Description of Conventional Example 3 The outline of the invention described in JP-A-4-310065 (hereinafter referred to as “Conventional Example 3”) is as follows. In a conventional image forming apparatus, for example, image information from an external device such as an image scanner is received, and the received image information is stored in a temporary storage unit such as a page memory. When making a change, the emulation is changed after erasing the image information stored in the temporary storage means to return it to the state at the time of shipment from the manufacturer (factory default).

For this reason, if the image information erased after the emulation is changed becomes necessary, it is necessary to send the image to the image forming apparatus again, which consumes extra labor and time. I had to. Therefore, in the present invention, it is possible to improve the efficiency of image information processing accompanying the change of the initial value setting according to the intended use.

Therefore, the image forming apparatus is provided with storage means for storing image information to be used for image formation, and is provided with an initial setting function according to the intended use, and for erasing the image information stored in the storage means. Or a selection unit for selecting storage maintenance, and, based on a result of the selection by the selection unit, after erasing the image information stored in the storage unit, or changing the initial setting while maintaining the storage state of the image information. And control means for executing

§4: Description of Conventional Example 4 The outline of the invention described in Japanese Patent Application Laid-Open No. 5-104829 (hereinafter referred to as “Conventional Example 4”) is as follows.

According to the present invention, when there is a possibility that a more appropriate emulation other than the emulation finally selected in the apparatus may exist, a warning is displayed to that effect. For this reason, the nonvolatile memory of the printer control device stores an emulation check table for determining whether or not emulation other than the emulation provided in the printer control device is appropriate.

If the data for printing is determined in this table and it is determined that the emulation other than the emulation provided in the apparatus is optimal, a predetermined warning is output to a control panel or the like. Has become.

§5: Description of Conventional Example 5 The outline of the invention described in JP-A-5-53739 (hereinafter, referred to as "Conventional Example 5") is as follows.

The present invention prevents erroneous printing which occurs between emulations for which automatic determination is difficult, and enables automatic switching of emulation without fail even when a command having the same format exists between different emulations. It was done.

Therefore, according to the present invention, a sub-module is provided on the program ROM to determine which emulation data from the host computer complies with, and the emulation to be automatically selected is stored in the emulation list in the RAM by the determination. Set as If an emulation combination that cannot be automatically selected is set, a warning is displayed on the display of the operation panel device, indicating that the setting is incorrect.
Enables the emulation set later, and excludes the emulation that was previously set from automatic selection among combinations that cannot be selected automatically.
That is.

[0024]

The above-mentioned prior art has the following problems. (1): In the first conventional example, if the emulation mode is set in the printer device by operating the emulation switching unit, printing is performed in a format corresponding to the set emulation mode. However, since emulation determination is not performed in the printer device, even when print data of an emulation different from the set emulation mode is transferred from a personal computer, printing is performed, and wasteful paper is output as dust printing. I was

As described above, when the emulation mode is set in the printer device, other emulation modes are set.
The print data input in the mode became dust print, and wasteful paper was output. Also, when only the print data was input, all the data was printed, resulting in dust printing.

(2): In the conventional example 2, an illegal command is used to discard data, and even in the same emulation mode, data without a paper size designation from a higher-level device is printed as dust. .

(3) In the third conventional example, when printing data with different emulations, the image information of the current mode is stored in the storage means. Therefore, it is difficult to prevent print data having different emulations from being printed as dust on print data input in real time. Printing cannot be eliminated.

(4): In the conventional example 4, when the emulation other than the emulation provided in the apparatus is determined to be optimal, a predetermined warning is output to a control panel or the like. However, even in this example, dust printing for print data having different emulations cannot be eliminated.

(5) In the conventional example 5, erroneous printing that occurs between emulations that are difficult to automatically discriminate is prevented, and automatic switching of emulation is performed even when there is a command in the same format between different emulations. Can definitely be done. However, even in this example, dust printing when only print data is input cannot be eliminated.

The present invention solves such a conventional problem, and determines whether emulation is different by determining the presence / absence of paper size / paper feed port designation information, and as a result, the emulation is set in the apparatus. When emulation data different from the emulation mode is input, the data is discarded without printing, eliminating dust printing and enabling users and the like to be notified that the emulation is different. I do.

[0031]

FIG. 1 is a diagram illustrating the principle of the present invention. The present invention is configured as follows to achieve the above object. (1): reception data analysis means (reception data analysis unit 9) for analyzing data transferred from the host device 2 and extracting print format data and print data from the data;
A paper size / paper supply port specification determining unit (a print format creation unit 12) for determining whether the print format data includes paper size / paper supply port specification information for specifying a paper size and a paper supply port. Emulation determination is performed based on the determination result of the paper size / paper supply port designation determination unit) and the paper size / paper supply port designation determination unit. If the paper size / paper supply port designation information does not exist, the emulation is different. Emulation judging unit (emulation judging unit 10), and a data discarding unit (data discarding unit 13) for discarding the print data without printing when the emulation judging unit determines that the emulation is different. I have.

(2): In the printer of the above (1),
A display means (display panel 6) and an alarm means (buzzer 15), wherein the emulation judging means, when judging that the emulation is different, causes the display means to display alarm information and the alarm means to sound an alarm sound. An alarm control means for sounding is provided.

(3): A procedure for analyzing the data transferred from the host device to the computer, extracting print format data and print data from the data, and specifying a paper size and a paper feed port in the print format data. To determine whether or not there is paper size / paper supply port designation information to perform the emulation determination based on the determination result. If the paper size / paper supply port designation information does not exist, the emulation is different. And a step of discarding the print data without printing when it is determined that the emulation is different in the determination.

(Operation) The operation of the present invention based on the above configuration will be described with reference to FIG. At the start of printing, a command is issued from the host device 2 to the printer device 1 to transfer print data. At this time, in the printer device 1, the received data analysis unit 9 analyzes the data received from the host device 2.

In this case, since the emulation mode is set in the printer 1 by the switching operation of the emulation switching unit 7, the reception data analysis unit 9
Analyzes the received data according to the set emulation mode. Then, if the received data is print format data, the data is transferred to the print format creation unit 12. If the received data is print data, the data is transferred to the emulation determination unit 10.

The print format creating section 12 creates a print format based on the transferred print format data. At this time, the paper size / paper feed port designation determining section of the print format creation section 12 determines whether or not there is paper size / paper feed port specification information in the set emulation mode. The information is notified to the emulation determination unit 10.

In this manner, the paper size / paper feed port designation determining section of the print format creating section 12 determines whether or not there is paper size / paper feed port designation information, and the information (result of designation information / No) emulation determination unit 10
Notify to If there is paper size / paper feed port designation information, the created print format is transferred to the print data creation unit 11.

Upon receiving the notification from the print format creation unit 12, the emulation determination unit 10 makes an emulation determination based on the contents. In this determination, if the content of the notification is “paper size / paper supply port designation information is present”, it is determined that the emulation mode is the same, and the content of the notification is “paper size / paper supply port designation information is absent”. If so, it is determined that the emulation mode is different.

When the emulation determination section 10 determines that the emulation mode is the same, the print data transferred from the reception data analysis section 9 is sent to the print data creation section 11 as it is. Then, the print data creation unit 11 creates print data in accordance with the transferred print format, and thereafter prints and outputs the data on paper in the printer mechanism unit.

On the other hand, if the paper size / paper feed port designation information does not exist, the emulation determination unit 10 determines that the emulation is different, and sends the print data transferred from the reception data analysis unit 9 to the print data creation unit 11. And sends it to the data discarding unit 13. Upon receiving the print data, the data discarding unit 13 discards the data.

At this time, the emulation determination unit 1
"0" sends alarm information to the display control unit 8 and the buzzer control unit 16, and notifies the display control unit 8 and the buzzer control unit 16 to perform display and alarm. Upon receiving the notification, the display control unit 8 creates alarm information, sends the alarm information to the display panel 6 on the operation panel 5, and causes the display panel 6 to display the alarm information. Further, the buzzer control unit 16 having received the notification sends a control signal to the buzzer 15 of the operation panel 5, and outputs the buzzer 1
5 sounds an alarm sound. Thus, the alarm information is notified to the operator and the like.

As described above, whether or not emulation is different is determined by determining the presence / absence of paper size / paper feed port designation information. If emulation data different from the emulation mode set in the device is input, the data is discarded without printing, eliminating dust printing, and emulating the user with an alarm display and alarm sound. Notify that they are different. This allows the user to recognize that the emulation is different.

[0043]

Embodiments of the present invention will be described below in detail with reference to the drawings. §1: Description of the configuration of the printer device ... see FIG. 2 FIG. 2 is a block diagram of the printer device. In this example, a plurality of personal computers (hereinafter, referred to as "PCs") 2-1, 2-2, 2-
3 is a system in which one printer device 1 is connected to these personal computers 2-1, 2-2, and 2-3.

The printer device 1 includes an operation panel 5, a display control unit 8, a buzzer control unit 16, a received data analysis unit 9, an emulation determination unit 10,
Print data creation unit 11 and print format creation unit 12
, A data discard unit 13, a printer mechanism unit 14, and the like. The operation panel 5 is provided with a display panel (for example, a liquid crystal display panel) 6, an emulation switching unit 7, a buzzer 15, and the like. The functions and the like of the respective units are as follows.

(1): The operation panel 5 is a panel for the operator to operate, and is provided, for example, in a part of the housing of the printer 1. (2): The display control section 8 controls the display panel 6 to display various information. For example, when an alarm notification is received from the emulation determination unit 10, alarm information is created and transferred to the display panel 6, and the alarm information is displayed on a display screen.

(3) The received data analysis unit 9 analyzes data transferred from the personal computer 2-1, 2-2, or 2-3, which is a higher-level device. Then, print format data and print data are taken out by the analysis,
The print format data is stored in the print format creation unit 12.
The print data is transferred to the emulation determination unit 10.

(4): The print format creation unit 12 creates a print format based on the print format data transferred from the received data analysis unit 9, and specifies a paper size and a paper feed port in the print format data. This is to determine whether or not there is paper size / paper feed port designation information for performing the determination, and notify the emulation determination unit 10 of information of the determination result.

In this case, it is determined whether or not there is paper size / paper supply port designation information suitable for the emulation mode set in the printer device 1. Even if the information has different emulation, it is determined that the information does not exist. That is, it is determined that there is no paper size / paper supply port designation information when there is no paper size / paper supply port designation information, and when there is information with different emulation even if the above information exists.

(5): The emulation determination unit 10 determines whether or not the emulation mode is different based on the notification of the determination result from the print format creation unit 12. In this case, the print format creation unit 12
If the content of the notification from is "paper size / paper supply port designation information is not present", it is determined that the emulation mode is different. Are determined to match.

(6): The print data creating section 11 creates print format print data in accordance with the print format created by the print format creating section 12. (7): The data discard unit 13 is the emulation determination unit 1
The print data is discarded in response to an instruction from 0.

(8) The printer mechanism section 14 is a mechanism section (printer mechanism section) for printing the print data transferred from the print data creating section 11 on paper. (9): The display panel 6 is composed of, for example, a liquid crystal display panel, and displays various information under the control of the display control unit 8.

(10) The emulation switching section 7 is for setting the emulation mode of the printer by a switching operation of the operator (for example, a switch).

(11) The buzzer 15 sounds an alarm sound. (12): The buzzer control section 16 controls the buzzer 15. §2: Description of the operation of the printer device—see FIG. 2 Hereinafter, the operation of the printer device will be described with reference to FIG. In this example, a plurality of personal computers 2-1, 2-2, 2
One of the personal computers (hereinafter referred to as “upper device”) issues a command to the printer device 1 to perform printing. When performing the printing, the operator operates the emulation switching unit 7 of the printer 1 to set the emulation mode in the printer 1. Thereafter, the printer 1 performs processing in the set emulation mode.

At the start of printing, the host device issues a command for causing the printer device 1 to perform printing, and transfers print data following this command. Then, the printer device 1 prints the print data according to the command. The command issued by the higher-level device includes print format data. The print format data includes a paper size specification (for example, paper size = A4) and a paper supply port specification (for example, There is each piece of designation information of “paper mouth = # 1). The paper size specification information and the paper supply port specification information are specified by a method according to a specific emulation set in the host device.
Therefore, when the emulation mode is different, the method (designation information) for specifying the paper size and the paper feed port is different.

As described above, at the start of printing, a command is issued from the host device to the printer device 1 and the print data is transferred. At this time, in the printer device 1, the received data analysis unit 9 analyzes the data transferred from the upper device.
In this case, the reception data analysis unit 9 analyzes the reception data according to the emulation mode set in the printer 1. If the received data is print format data, the print format data is transferred to the print format creation unit 12. If the received data is print data, the print data is transferred to the emulation determination unit 10.

The print format creating section 12 creates a print format based on the transferred print format data. At this time, the print format creation unit 12
Determines whether or not there is paper size / paper feed port designation information in the emulation mode set in the printer device 1 and determines the information of the determination result in the emulation determination unit 1.
Notify 0.

In this case, since the paper size / paper feed port designation information (designation method) differs for each emulation,
Even if the paper size / paper supply port designation information is present, if the paper size / paper supply port designation information is different from the emulation mode set in the printer 1, the paper size / paper supply port designation information Is determined not to exist.

As described above, the print format creation unit 12 determines whether or not there is paper size / paper feed port designation information, and notifies the emulation determination unit 10 of the result information (with / without designation information). . If there is paper size / paper feed port designation information, the created print format is sent to the print data creation unit 11.

Upon receiving the notification from the print format creation unit 12, the emulation determination unit 10 determines whether the emulation mode is different from the content of the notification. For example, if the content of the notification is “paper size / paper feed port designation information exists”, it is determined that the emulation mode matches, and the print data received from the received data analysis unit 9 is directly sent to the print data creation unit 11. Forward. Then, the print data creation unit 11 creates print data in accordance with the print format, and transfers the created print data to the printer mechanism unit 14. Upon receiving the print data, the printer mechanism unit 14 prints the print data on paper and outputs the print data.

On the other hand, if the content of the notification is "no paper size / paper feed port designation information", the emulation determination unit 10 determines that the emulation mode is different. In this case, the emulation determination unit 10 transfers the print data received from the reception data analysis unit 9 to the data discard unit 13. Upon receiving the print data, the data discarding unit 13 discards the data. The emulation determination unit 10 includes the display control unit 8 and the buzzer control unit 1.
6 is notified of alarm information, and instructed to perform display and alarm.

The display control unit 8 having received the notification creates alarm information, sends the alarm information to the display panel 6 of the operation panel 5, and displays the alarm information on the display panel 6. In addition, the buzzer control unit 16 having received the notification sends a control signal to the buzzer 15 of the operation panel 5 and causes the buzzer 15 to sound an alarm sound. Thus, the alarm information is notified to the operator and the like.

§3: Explanation of Processing of Print Format Creation Unit Based on Flowchart--See FIG. 3 FIG. 3 is a flowchart of processing of the print format creation unit. Hereinafter, the processing of the print format creation unit will be described with reference to FIG. Note that S1 to S6 shown in FIG. 3 indicate each processing step.

When receiving the print format data from the received data analysis unit 9 (S1), the print format creation unit 12 creates a print format according to the specified information of the print format data (S2). At this time, the print format creation unit 12 determines whether there is paper size / paper feed port designation information according to the emulation mode set in the printer device 1 (S3). As a result, if there is the paper size / paper supply port designation information, the emulation determination unit 10 determines that the paper size / paper supply port designation exists.
Is notified (S4). Then, the created print format is sent to the print data creating unit 11 (S5), and the process is repeated from the process of S1 again.

However, in the process of S3, the paper size /
If it is determined that there is no paper feed port designation information, the paper size /
Emulation determination unit 1 determines that there is no paper feed port designation information
0 (S6), and the process is repeated again from the process of S1. In this case, the created print format is not sent to the print data creation unit 11.

§4: Description of Processing of Emulation Determination Unit Based on Flowchart—See FIG. 4 FIG. 4 is a processing flowchart of the emulation determination unit. Hereinafter, the processing of the emulation determination unit will be described with reference to FIG. Note that S11 to S17 shown in FIG. 4 indicate each processing step.

When the emulation determination unit 10 receives the notification from the print format creation unit 12 (S11),
From the content of the notification, it is determined whether the emulation mode is the same (S12). In this case, if the content of the notification is “paper size / paper feed port designation information exists”, it is determined that the emulation mode is the same, and the content of the notification is “paper size / paper feed port designation information is absent”. If so, it is determined that the emulation mode is different.

When the emulation mode is determined to be the same in the processing of S12, the emulation determination unit 10 waits for reception of print data from the reception data analysis unit 9 (S13). Is sent to the print data creation unit 11 as it is (S1
4) Repeatedly from the processing of S1.

However, if it is determined in step S12 that the emulation mode is different, the emulation determination unit 10 waits for reception of the print data from the reception data analysis unit 9, and when the print data is received, The print data is sent to the data discarding unit 13 (S16). Then, the print data is discarded by the data discarding unit 13.
That is, the print data without the paper size / paper feed port designation information is regarded as print data having different emulations, the print data is discarded, and no printing is performed.

At this time, the emulation determination unit 1
0 sends an alarm notification to the display control unit 8 and the buzzer control unit 16 and instructs display and warning (S17). Upon receiving the notification, the display control unit 8 creates alarm information indicating that an alarm condition has occurred, sends the alarm information to the display panel 6 of the operation panel 5, and causes the display panel 6 to display the alarm information. In addition, the buzzer control unit 16 having received the notification sends a control signal to the buzzer 15 of the operation panel 5 and causes the buzzer 15 to sound an alarm sound. Thus, the alarm information is notified to the operator and the like.

§5: Description of Recording Medium and Program The processes performed by the received data analysis unit 9, print format creation unit 12, emulation determination unit 10, and data discarding unit 13 of the printer 1 are performed by the CPU in the printer 1.
(Or MPU) executes the program to achieve the following.

The personal computer (a plurality of personal computers 2-1 and 2)
, 2-3), a hard disk device is provided, and a recording medium (hard disk) of the hard disk device stores a program for realizing the processing in the printer device 1 and other programs. Various data and the like are stored. When the above processing is performed, the program and data stored in the recording medium of the hard disk device are read out under the control of a CPU provided in the personal computer, and are transferred to the printer device 1. take in.

After that, the CPU (or MPU) in the printer device 1 executes the program stored in the memory,
The processing in the printer device 1 is performed by sequentially reading and executing necessary programs. The program stored in the recording medium of the hard disk device is recorded (stored) as follows.

A program (program data created by another device) stored in a flexible disk (floppy disk) is read by a flexible disk drive provided in a personal computer and stored in a recording medium (hard disk) of a hard disk device. .

: Magneto-optical disk or CD-ROM
The data stored in a recording medium such as the above is read by a drive device provided in the personal computer, and is stored in a recording medium (hard disk) of a hard disk device.

Data received from another device via a communication line such as a LAN is received by the personal computer, and the data is stored in a recording medium (hard disk) of a hard disk device.

§6: Other explanations (1): The printer described in the above embodiment is an example of a device capable of switching and setting an emulation mode. However, the present invention is not limited to such an example, and the emulation mode is not limited to such an example.・ Even if the device cannot be set to switch modes,
It can be implemented in the same manner as in the above example. That is, in the present invention, whether or not the emulation mode is the same is determined based on the presence or absence of the paper size / paper feed port designation information.
It is applicable to any printer device.

(2): The above-mentioned personal computer can be implemented even with one unit.

[0078]

As described above, the present invention has the following effects. (1): Emulation is performed by using the fact that the specified information for specifying the paper size and paper feed port is always transferred from the host device to the printer at the start of printing, and by determining the presence or absence of this specified information. -It is determined whether the mode is different. Therefore, based on the determination result of the presence / absence of the designation information, emulation and
It is possible to automatically determine whether the mode is the same or not, and discard print data in a different emulation mode so as not to print. As a result, the conventional dust printing can be eliminated, and the waste of paper can be prevented.

(2): If the host device forgets to specify the paper size and paper feed port and only print data is input to the printer, it is determined that the data has a different emulation mode, and the data is discarded. be able to. Therefore, dust printing as in the conventional example can be eliminated, and waste of paper can be prevented.

(3): Emulation to printer
When print data in different modes is input, alarm information is displayed and a user or the like can be notified by sounding of an alarm unit. Therefore, it is possible to make the user or the like surely recognize that the emulation mode is different.

In addition to the above effects, the following effects are provided corresponding to each claim. (4): In the first aspect, a reception data analysis means for analyzing data transferred from a higher-level device and extracting print format data and print data from the data, and including a paper size and a paper feed port in the print format data. The emulation determination is performed based on the determination results of the paper size / paper supply port designation determining means for determining whether there is paper size / paper supply port designation information for designation, and the paper size / paper supply port designation determination means. Emulation judging means for judging that emulation is different when there is no paper size / paper feed port designation information; and data discarding means for discarding print data without printing when the emulation judging means judges that emulation is different. It has.

Therefore, when print data of an emulation different from the emulation mode set in the printer device is input, the data is discarded without being printed.
It is possible to eliminate dust printing and prevent waste of paper.

(5): In claim 2, the display device and the alarm device are provided, and when the emulation is judged to be different, the emulation judgment device displays the alarm information on the display device and outputs the alarm sound by the alarm device. An alarm control means for sounding is provided. Therefore, it is possible to reliably notify the user or the like that the emulation mode is different.

(6) In the third aspect, the computer analyzes the data transferred from the higher-level device and extracts print format data and print data from the data. A procedure for determining whether or not there is paper size / paper supply port designation information for designating a paper supply port, and emulation determination based on the determination result. Records a program for executing a procedure for determining that the emulation is different, and a procedure for discarding the print data without printing when the emulation is determined to be different in the determination on a recording medium. .

Therefore, by executing the above-mentioned program, when emulation data different from the emulation mode set in the printer is input, the data is discarded without being printed, so that dust printing can be eliminated.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a block diagram of the printer device according to the embodiment.

FIG. 3 is a processing flowchart of a print format creation unit according to the embodiment.

FIG. 4 is a processing flowchart of an emulation determination unit in the embodiment.

FIG. 5 is an explanatory diagram of Conventional Example 1.

[Explanation of symbols]

 Reference Signs List 1 printer device 5 operation panel 6 display panel 7 emulation switching unit 8 display control unit 9 received data analysis unit 10 emulation determination unit 11 print data creation unit 12 print format creation unit 13 data discard unit 14 printer mechanism unit 15 buzzer 16 buzzer control unit

Claims (3)

[Claims] 1. An apparatus for analyzing data transferred from a host device,
Receiving data analysis means for extracting print format data and print data from the data; and determining whether or not the print format data has paper size / paper feed port designation information for specifying a paper size and a paper feed port. The emulation determination is performed based on the determination result of the paper size / paper supply port designation determining means and the paper size / paper supply port designation determination means. If there is no paper size / paper supply port designation information, the emulation is different. And a data discarding means for discarding the print data without printing when the emulation is judged to be different. 2. An alarm control comprising a display unit and an alarm unit, wherein the emulation determination unit displays alarm information on the display unit and sounds an alarm sound on the alarm unit when the emulation is determined to be different. 2. A printer according to claim 1, further comprising means. 3. A computer for analyzing data transferred from a host device, extracting print format data and print data from the data, and specifying a paper size and a paper feed port in the print format data. Determining whether or not there is paper size / paper supply port designation information; and performing emulation determination based on the determination result. If there is no paper size / paper supply port designation information, it is determined that emulation is different. And discarding the print data without printing when it is determined that the emulation is different in the determination, and a computer-readable recording medium storing a program for executing the steps.