JPH10320139A - PRINT CONTROL DEVICE, PRINT CONTROL METHOD, AND COMPUTER-READABLE RECORDING MEDIUM CONTAINING PRINT CONTROL PROGRAM - Google Patents

Abstract

(57) [Problem] To provide a print control device capable of continuing processing without stopping the system even when an error occurs. SOLUTION: When reading out print data, position information and size of each instruction block in the print data are stored, and when an error is detected, the position information and size of the instruction block executed at that time are read out, Data corresponding to the size from the head position of the instruction block is overwritten with data indicating a blank (steps S40 to S43). Then, the print data thus processed is interpreted again and developed into bitmap data or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a print control apparatus and a print control method for interpreting a print processing command such as a page description language and performing a print process, and detecting an error during the print process and performing a predetermined process. It belongs to the technical field of a computer-readable recording medium on which a print control program is recorded.

[0002]

2. Description of the Related Art Conventionally, in a print system in which a client device and a printer device are connected over a network, print data described in a page description language is transmitted from the client device to the printer device, and the page data is transmitted to the printer device. The description language is interpreted and converted into bitmap data or the like.

When an error such as an inability to interpret a command occurs when interpreting the page description language transmitted from the client device, the printer device notifies the client device of the command in which the error occurred and the name of the error. In such a case, the interpretation process is interrupted and printing is not executed.

[0004] Further, if an error cannot be returned due to an unexpected situation, it is highly likely that the print control device itself that controls the printer device cannot be processed. After the system return process, the print data that has not been printed is interpreted again.

[0005]

However, the error processing in the above-described conventional apparatus involves interruption of the printing processing and requires manual recovery processing. Therefore, when a spool system is employed, the system becomes inefficient. There has been a problem that a problem of stopping is caused.

In this spool system, a printer or a print server connected to a network is provided with a spooler as a large-capacity storage medium, and print data from a plurality of client devices is stored in the spooler at one time and sequentially. This is a printing system.

According to such a system, a plurality of users can share one or a plurality of printers, so that an efficient printing process can be performed.

However, if an error occurs during the interpretation of print data transmitted from one client device and the spool system stops as described above, a plurality of client devices using that system will It becomes impossible to transmit the print data, resulting in more damage than expected.

Accordingly, the present invention provides a print control apparatus and a print control method capable of continuing processing without stopping the system even when an error occurs, and a computer-readable recording medium on which a print control program is recorded. The challenge is to do.

[0010]

According to a first aspect of the present invention, there is provided a print control apparatus for receiving print data including print processing instruction data, and interpreting the received print data. Interpreting means, command data position information storing means for storing position information of print processing command data to be interpreted, error detecting means for detecting an error during print processing executed as a result of the interpreting, Command data position information reading means for reading command data position information stored in the command data position information storage means when an error is detected by the error detection means; and print processing command data specified based on the read command data position information Command data processing means for converting non-command data into
Print data after processing by the command data processing means,
Error processing control means for re-interpreting by the interpreting means.

[0011] According to the printing control apparatus of the first aspect,
The print data including the print processing command data is received by the receiving means, and the received print data is interpreted by the interpreting means. Further, position information of the print processing command data to be interpreted is stored in a command data position information storage unit. Then, a predetermined print process is performed as a result of the interpretation. An error during the print process is detected by the error detection unit, and the command data stored in the command data position information storage unit when the error is detected. The position information is read by the command data position information reading means. Then, the print processing command data specified based on the read command data position information is converted into non-command data by the command data processing means, and the print data processed in this manner is transmitted to the error processing control means. Is interpreted again by the interpretation means under the control of. Accordingly, the instruction data is interpreted again in a state where the instruction data that caused the error has been deleted, so that the processing of the print control apparatus can be interrupted without causing an error in the same place. Absent.

According to a second aspect of the present invention, there is provided the print control apparatus according to the first aspect, wherein the error processing control means controls whether the error detection means no longer detects an error or the command data processing. Until there is no print processing command data to be converted into non-command data by means, the process of re-interpreting is repeated.

[0013] According to the printing control apparatus of the second aspect,
As a result of the re-interpretation performed under the control of the error processing control unit, if an error is further detected, the above-described command data processing is performed again, and the re-interpretation is performed. Hereinafter, such a series of processing is repeated until no error is detected, or until there is no more print processing instruction data to be converted into non-instruction data by the instruction data processing means. Is removed.

According to a third aspect of the present invention, there is provided the print control apparatus according to the first or second aspect.
The command data processing unit converts the specified print processing command data into non-command data by rewriting the print processing command data with data representing a break between command data.

[0015] According to the printing control apparatus of the third aspect,
The instruction data processing means rewrites the instruction data with data representing a break between the instruction data in order to make the instruction data non-instruction data. Thus, the instruction data causing the error is not recognized as the instruction data and is not executed.

According to a fourth aspect of the present invention, in the print control apparatus according to the first or second aspect,
The command data processing means converts the specified print processing command data into non-command data by performing overwriting of data indicating comment data from the top position of the specified print processing command data. It is characterized by.

[0017] According to the printing control apparatus of the fourth aspect,
The command data processing means overwrites data indicating comment data from the head position of the specified print processing command data in order to make the command data non-command data. Thus, the instruction data causing the error is not recognized as the instruction data and is not executed.

According to a fifth aspect of the present invention, in the print control apparatus according to any one of the first to fourth aspects, the command data position information read by the command data position information reading means is provided. Is further provided as error log recording means for recording the log information as log information.

According to the printing control apparatus of the fifth aspect,
Since the instruction data position information read by the instruction data position information reading means is recorded as log information by the error log recording means, even if the instruction data is processed as described above, the position of the instruction data is not changed. The instruction data that caused the error is specified based on the information. Therefore, appropriate countermeasures can be taken based on the specified command data.

According to a sixth aspect of the present invention, in the print control apparatus according to the fifth aspect, an error log notifying means for notifying the host apparatus of the log information recorded in the error log recording means is provided. It is further characterized by being provided.

According to the printing control device of the sixth aspect,
The log information recorded in the error log recording unit includes:
The error log notification unit notifies the host device. Therefore, the instruction data causing the error is:
Confirmed on the host device, it is possible to take appropriate countermeasures.

According to another aspect of the present invention, there is provided a print control method for receiving print data including print processing instruction data, interpreting the received print data, Command data position information storing step of storing position information of print processing command data to be processed, an error detecting step of detecting an error during the printing process executed as a result of the interpretation, and the command data position information storing step Command data position information reading step for reading the command data position information stored at the time of error detection by the error detection step, and converting the print processing command data specified based on the read command data position information into non-command data. Command data processing step, and the print data processed by the command data processing step are re-interpreted by the interpretation step. And error processing control step, and further comprising a.

According to the print control method of the present invention,
Print data including the print processing command data is received, and the received print data is interpreted. Also, position information of print processing command data to be interpreted is stored. Then, predetermined printing processing is performed as a result of the interpretation. When an error is detected during this printing processing, the stored instruction data position information is read. The print command data specified based on the read command data position information is converted into non-command data, and the processed print data is interpreted again. Accordingly, the instruction data is interpreted again in a state where the instruction data that caused the error is deleted, so that the printing process is not interrupted without causing an error at the same location.

According to another aspect of the present invention, in the print control method according to the seventh aspect, the error processing control step is performed until an error is not detected by the error detection step or the command data processing is performed. The process of re-interpreting is repeated until there is no more print processing instruction data to be converted into non-instruction data by a process.

According to the printing control method of the eighth aspect,
As a result of re-interpretation, if another error is detected,
The command data processing as described above is performed again, and the interpretation is performed again. Hereinafter, such a series of processing,
The process is repeated until no error is detected or the print processing instruction data to be converted into non-instruction data disappears, so that the cause of the error occurrence is reliably removed.

According to a ninth aspect of the present invention, in the print control method according to the seventh or eighth aspect,
The command data processing step is characterized in that the specified print processing command data is converted into non-command data by rewriting the specified print processing command data with data indicating a break between command data.

According to the printing control method of the ninth aspect,
The conversion of the instruction data to non-instruction data is performed by rewriting the instruction data with data representing a break between the instruction data. Thus, the instruction data causing the error is not recognized as the instruction data and is not executed.

According to a tenth aspect of the present invention, in the print control method according to the seventh or eighth aspect, the command data processing step includes: By overwriting data indicating comment data, the specified print processing command data is converted into non-command data.

According to the print control method of the present invention, the instruction data is converted into non-instruction data by overwriting data indicating comment data from the head position of the specified print processing instruction data. Will be Thus, the instruction data causing the error is not recognized as the instruction data and is not executed.

According to an eleventh aspect of the present invention, in the print control method according to any one of the seventh to tenth aspects, the command data position information read in the command data position information reading step is read. Is recorded as log information.

According to the printing control method of the eleventh aspect, the read command data position information is recorded as log information, so that even if the command data is processed as described above, The instruction data causing the error is specified based on the position information of the instruction data. Therefore, appropriate countermeasures can be taken based on the specified command data.

According to a twelfth aspect of the present invention, in the print control method according to the eleventh aspect, an error log notification step of notifying the host apparatus of the log information recorded in the error log recording step. It is further characterized by being provided.

According to the printing control method of the twelfth aspect, the recorded log information is notified to a host device. Therefore, the command data causing the error is confirmed on the host device, and appropriate countermeasures can be taken.

[0034] In a computer-readable recording medium in which the print control program according to claim 13 is recorded, the print control program receives a print data including print processing instruction data from a computer, An interpreting step of interpreting print data, an instruction data position information storing step of storing position information of print processing instruction data to be interpreted, and an error detecting an error during the print processing executed as a result of the interpretation A detection process;
An instruction data position information reading step for reading the instruction data position information stored in the instruction data position information storage step when an error is detected by the error detection step; and a printing process specified based on the read instruction data position information. An instruction data processing step of converting the instruction data into non-instruction data, and an error processing control step of re-interpreting the print data processed in the instruction data processing step by the interpretation step are performed.

[0035] By causing a computer to read a computer-readable recording medium on which the print control program according to claim 13 is recorded, print data including print processing instruction data is received. Interpretation is performed. Also, position information of print processing command data to be interpreted is stored. And
A predetermined print process is performed as a result of the interpretation. When an error is detected during the print process, the stored instruction data position information is read. Then, the print processing instruction data specified based on the read instruction data position information is converted into non-instruction data,
The processed print data is interpreted again. Therefore,
Since the instruction data is interpreted again in a state where the instruction data that caused the error has been deleted, the print processing is not interrupted without causing an error at the same location.

A computer-readable recording medium on which the print control program according to claim 14 is recorded is a computer-readable recording medium according to claim 13, wherein the print control program is transmitted to a computer as the error processing control step. Repeating the process of re-interpreting until no error is detected in the error detection step or until there is no print processing instruction data to be converted into non-instruction data in the instruction data processing step. I do.

By causing a computer to read a computer-readable recording medium on which the print control program according to claim 14 is recorded, if an error is further detected as a result of the re-interpretation, the above-described method is repeated. Command data processing is performed, and further interpretation is performed. Hereinafter, such a series of processing is repeated until no error is detected or until there is no print processing instruction data to be converted into non-instruction data, so that the cause of the error is reliably removed.

[0038] A computer-readable recording medium on which the print control program according to claim 15 is recorded is the computer-readable recording medium according to claim 13 or 14, wherein the print control program causes a computer to execute the instruction. The data processing step is characterized in that the specified print processing instruction data is rewritten with data representing a break between the instruction data, thereby executing a step of converting the print processing instruction data into non-instruction data.

By causing a computer to read a computer-readable recording medium on which the print control program according to claim 15 is recorded, the instruction data is converted into non-instruction data by rewriting with data representing a break between the instruction data. It is performed by Thus, the instruction data causing the error is not recognized as the instruction data and is not executed.

A computer-readable recording medium on which the print control program according to claim 16 is recorded is a computer-readable recording medium according to any one of claims 13 to 15, wherein the print control program is The computer performs the command data processing step by overwriting data indicating comment data from the head position of the specified print processing command data, thereby converting the specified print processing command data to non-command data. A step of performing

By causing a computer to read a computer-readable recording medium on which the print control program according to claim 16 is recorded, the non-instruction data of the instruction data is converted into the head position of the specified print processing instruction data. Is performed by overwriting the data indicating the comment data. Thus, the instruction data causing the error is not recognized as the instruction data and is not executed.

A computer-readable recording medium on which the print control program according to claim 17 is recorded is a computer-readable recording medium according to any one of claims 7 to 10, wherein the print control program is The computer is further caused to execute an error log recording step of recording, as log information, the command data position information read in the command data position information reading step.

By causing a computer to read a computer-readable recording medium on which the print control program according to claim 17 is recorded, the read instruction data position information is recorded as log information. Even when the instruction data is processed as described above, the instruction data causing the error is specified based on the position information of the instruction data. Therefore, appropriate countermeasures can be taken based on the specified command data.

A computer-readable recording medium on which the print control program according to claim 18 is recorded is a computer-readable recording medium according to claim 17, wherein the print control program is recorded on a computer in the error log recording step. An error log notification step of notifying the host apparatus of the log information thus performed is further performed.

By causing a computer to read a computer-readable recording medium on which the print control program according to claim 18 is recorded, the recorded log information is notified to a host device. Therefore, the command data causing the error is confirmed on the host device, and appropriate countermeasures can be taken.

[0046]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIGS.

FIG. 1A is a block diagram showing a schematic configuration of a printing system having a print control device according to an embodiment of the present invention, and FIG. 1B is a schematic diagram of a control program of the print control device according to the embodiment. FIG. 3 is a block diagram illustrating a configuration.

In this embodiment, the control program is started on a computer generally called a printer server, so that the printer server functions as a print control device. As shown in FIG.
The print control device 10 includes a CPU 1, a ROM 2, an R
AM 3, HDD 4, display device 5, output I / F 6
And an input I / F 7. Each means is a system bus 8 comprising a data bus and an address bus.
Connected through.

The CPU 1 performs its own arithmetic processing based on a control program stored in the ROM 3 or the hard disk 4, or controls each component described later,
A function described by a flowchart described below is executed.

The ROM 2 is a memory capable of storing a print control program or data, and reads out a necessary program at a predetermined timing and outputs it to the bus 8.

The RAM 3 temporarily stores data and the like necessary for processing in the CPU 1 and outputs the data to the bus 8 as necessary.

The HDD 4 is a storage medium capable of storing a print control program, data, and the like. In the present embodiment, the print control program of the present invention having each procedure shown in FIG. 1B is stored. . In the present embodiment, the print control program is temporarily loaded into the RAM 3, and the CPU 1 interprets the procedure on the RAM 3 and performs processing.

The installation of the print control program in the HDD 4 can be performed by using a CD-ROM or a floppy disk as a recording medium on which the print control program of the present invention is recorded.

Further, the print control program of the present invention comprises:
The program may be stored in the OM2. If the program is stored in the ROM2, the CPU1 reads the program stored in the ROM2, and the CPU1 interprets the procedure and performs processing. In this case, the ROM 2 is a recording medium on which the print control program of the present invention is recorded.

The display device 5 is a CRT (Cathode Ray Tub).
e) or an LCD (Liquid Crystal Display) for displaying a print control program or print data.

The output I / F (interface) 6
It enables communication between the printing control device 10 and the printing device 9, and outputs drawing data and the like generated by the printing control device 10 to the printing device 9 via the output cable 6a. The connection between the print control device 10 and the printing device is not limited to the case where the output cable 6a is used, but may be connected via a network.

The printing device 9 includes an electrophotographic or ink jet printing engine, and performs printing based on the drawing data transmitted from the print control device 10.

The input I / F 7 performs protocol conversion and the like on data output from the print control device 10 and data input to the print control device 10, and performs network conversion.
The data communication between the print control apparatus 10 and the host apparatus 11 via the host computer 11 is enabled. Specifically, the host device 11
, The print data described in a page description language output via the network 12 is input via the input cable 7a. Since the input I / F 7 is connected to the bus 8, the input I / F 7 can be accessed by the CPU 1.

The host device 11 is composed of a personal computer or the like.
2 are connected to each other. In the host device 11, the image data created by the drawing application software as shown in FIG.
e Systems) PostScript or Hewlett Packard PCL (Print Co.)
The print data is converted into print data described in a page description language such as a control language, and the print data is output to the print control device 10 via the network 12.

With the above configuration, the print control device 1
0 interprets the print data output from the host device 11 and converts it to bitmap data or run-length data as shown in FIG. 9 is performed.

However, when interpreting this print data,
Alternatively, when an error occurs during communication with the host device 11, conversion to normal bitmap data cannot be performed.

Therefore, conventionally, measures have been taken to suspend the interpretation process of print data and not execute printing.

However, in such a configuration, if an error occurs in a print job output from one host device when a plurality of host devices are connected on the network as in the present embodiment, Since the processing in the print control device is interrupted as described above, there is a problem that other host devices cannot execute the print job.

Therefore, in the present embodiment, the processing is continued while deleting the instruction block causing the error. Hereinafter, a print control method according to the present embodiment will be described.

As shown in FIG. 1B, the print control program according to the present embodiment includes a print data interpretation procedure, an instruction block position information storage procedure, an instruction block position information reading procedure, an instruction block deletion procedure, and an error processing control procedure. , And an error log notification procedure, which are executed by the CPU 1.

First, the print data interpretation procedure will be described with reference to FIG. As described above, print data output from the host device 11 via the network 12 is input by the input I / F 7,
1 (step S1). Next, CPU
According to 1, for each command block of the read print data, it is determined whether or not the command is a drawing command (step S2), and if the command is a drawing command (step S2; YE).
S), a procedure for storing instruction block position information is executed (step S3).

This procedure is shown in FIG. 4, in which the instruction start position is updated, the instruction block size is updated (step S10), and stored in the storage device of the RAM 3 or the hard disk 4 (step S11).

That is, the storage area of the instruction block position information is divided into an area 20 for storing the instruction start position and an area 21 for storing the instruction block size, as shown in FIG. The respective information is obtained from the print data as shown in FIG.

FIG. 5B shows an example of print data described in the PostScript language. The position indicated by a triangle is an instruction start position, and the hatched portion is an instruction block. First, assuming that the head position of the first instruction (“100 100 10 10 rectfill”) shown in FIG. 5B is “0”, the block size of the first instruction is 21 bytes. 15 circle)
This is the position of “22”. Hereinafter, the position information is obtained for all the instruction blocks by calculating the instruction block size in the same manner.

When the procedure for storing the instruction block position information as described above is completed, as shown in FIG. 3, each instruction block is interpreted and conversion processing into bitmap data is performed (step S4). This conversion processing is performed for each instruction block. In the present embodiment, however, a storage area for instruction block position information is provided on the RAM 3, and the instruction processing target for the conversion processing is provided in this area. The instruction start position and size of the block are sequentially written.

On the other hand, if an error such as a memory full condition or an inability to interpret the page description language occurs due to the execution of the conversion process for each instruction block (step S5;
YES), execute the error processing control procedure (step S)
6).

The details of this procedure are shown in FIG.
First, a procedure for reading instruction block position information is executed (step S20). The procedure for reading the instruction block position information is, as shown in FIG.
Alternatively, the procedure is to read out the instruction block position information stored in a storage device such as the hard disk 4 (step S3).
0).

That is, the start position and size of the instruction block that caused the error are obtained at this stage.

The instruction block position information is R
The data is written to the log file area formed on the AM 3 or the hard disk 4 (step S21), and the user is notified later.

Next, a procedure for deleting the instruction block is executed based on the instruction block position information acquired as described above (step S22). This procedure is shown in FIG.
(A), a pointer called a file pointer is first moved to the acquired instruction block start position (step S40). Next, the counter N
To the obtained instruction block size (step S
41) Until the counter N becomes 0, the data indicated by the file pointer is changed to 20H represented by a hexadecimal number (step S42; YES to step S43). This 2
0H is data indicating a space. As a result of executing such processing, for example, as shown in FIG.
ll "will be overwritten with spaces and deleted.

Next, as shown in FIG. 6, if the print data is not completed (step S23; NO), the conversion process from the beginning to the bit map data is again performed by the print data interpretation procedure shown in FIG. (Step S2)
4).

At this time, since the command that caused the error has already been deleted as described above, if the print data is interpreted again, the command will be added to the bitmap data without causing an error. Can be performed.

When the error processing control procedure is completed as described above, an error log notification processing procedure (step S7) is executed as shown in FIG. The details of this process are shown in FIG. 9. First, the host device 11 that notifies the error log is specified based on the communication information included in the print data (step S50). Then, the previously created error log file is read from the RAM 3 or the hard disk 4 and transmitted to the specified host device 11 (step S51).

Therefore, the user of the host device 11 can know which command caused the error, and can take an appropriate countermeasure.

As described above, according to the present embodiment, even if an error occurs, the processing in the print control apparatus 10 is not stopped, so that other host apparatuses using this system include: The damage caused by the occurrence of the error is not affected.

Further, since an error log indicating which part is deleted and the processing is executed is recorded, even if the desired print result cannot be obtained due to the correction of the print data, which instruction block is It is easy to determine whether an error has occurred.

In this embodiment, “20H” is used.
Was overwritten to delete the instruction that caused the error. However, the present invention is not limited to this. By writing data indicating a comment line, for example, “%”, The instruction that caused the error can be prevented from being executed. In this case, it is not necessary to process all the target instruction blocks, so that the processing speed can be increased.

[0083]

According to the first aspect of the present invention, when an error is detected, the stored command data position information is read, and the print processing command data specified based on the command data position information is read. Is converted into non-command data, and the command data is interpreted again. Therefore, occurrence of an error can be suppressed, and interruption of processing of the print control device can be prevented. As a result, when a plurality of host devices are connected to the print control device, there is no hindrance to print processing in other host devices.

According to the printing control apparatus of the second aspect,
The reinterpretation process is repeated until no error is detected or there is no more print processing instruction data to be converted into non-instruction data, so that the cause of the error can be reliably removed.

According to the printing control apparatus of the third aspect,
The print processing instruction data identified as the cause of the error is converted into non-instruction data by rewriting it with data representing the delimiter between the instruction data, so the other print processing instruction data remains unchanged and the cause of the error Can be removed.

According to the printing control apparatus of the fourth aspect,
Since the data indicating the comment data is overwritten from the head position of the print processing command data specified as the cause of the error, the specified print processing command data is converted into non-command data. The cause of the error can be eliminated in a much shorter time without changing the print processing instruction data.

According to the printing control apparatus of the fifth aspect,
Since the read instruction data position information is recorded as log information, even if the instruction data is processed as described above, the instruction data that caused the error is generated based on the instruction data position information. Can be specified. Therefore, appropriate countermeasures can be taken based on the specified command data.

According to the printing control apparatus of the sixth aspect,
Since the log information is notified to the host device, the command data causing the error is confirmed on the host device, and appropriate countermeasures can be taken.

According to the printing control method of the seventh aspect,
When an error is detected, the stored instruction data position information is read, the print processing instruction data specified based on the instruction data position information is converted into non-instruction data, and the instruction data is interpreted again. Therefore, occurrence of an error can be suppressed, and interruption of processing of the print control device can be prevented. As a result, when a plurality of host devices are connected to the print control device, there is no hindrance to print processing in other host devices.

According to the printing control method of the eighth aspect,
The reinterpretation process is repeated until no error is detected or there is no more print processing instruction data to be converted into non-instruction data, so that the cause of the error can be reliably removed.

According to the print control method of the ninth aspect,
The print processing instruction data identified as the cause of the error is converted into non-instruction data by rewriting it with data representing the delimiter between the instruction data, so the other print processing instruction data remains unchanged and the cause of the error Can be removed.

According to the print control method of the tenth aspect, the data indicating the comment data is overwritten from the head position of the print processing command data specified as the cause of the error, whereby the identification is performed. Since the print processing command data is converted into non-command data, the cause of the error can be eliminated in a much shorter time while the other print processing command data remains unchanged.

According to the print control method of the present invention, the read command data position information is recorded as log information. Therefore, even if the command data is processed as described above, the command data is stored in the command data position information. The command data that caused the error can be specified based on the position information. Therefore, appropriate countermeasures can be taken based on the specified command data.

According to the printing control method of the twelfth aspect, the log information is notified to the host device, so that the command data causing the error is confirmed on the host device, and an appropriate countermeasure is taken. Can be adopted.

By causing a computer to read a computer-readable recording medium on which the print control program according to claim 13 is recorded, when an error is detected, the stored instruction data position information is read out. The print processing instruction data specified based on the data position information is converted into non-instruction data, and the instruction data is interpreted again, so that an error can be suppressed and the processing of the print control device can be interrupted. Can be prevented. As a result, when a plurality of host devices are connected to the print control device, there is no hindrance to print processing in other host devices.

[0096] By causing a computer to read a computer-readable recording medium on which the print control program according to claim 14 is recorded, print processing instruction data until no error is detected or non-instruction data is converted. Until the error disappears, the above-described process for re-interpreting is repeated, so that the cause of the error can be reliably removed.

By causing a computer to read a computer-readable recording medium on which the print control program according to claim 15 is recorded, the print processing instruction data specified as the cause of the error can be separated from the instruction data. Since the data is converted into non-instruction data by rewriting with the data representing the error, the cause of the occurrence of the error can be removed without changing other print processing instruction data.

By causing a computer to read a computer-readable recording medium on which the print control program according to claim 16 is recorded, the print processing instruction data specified as the cause of the error can be read from the head position.
By overwriting the data indicating the comment data, the specified print processing instruction data is converted into non-instruction data, so that the other print processing instruction data remains unchanged and the error The cause of the occurrence can be eliminated.

When the computer reads a computer-readable recording medium on which the print control program according to claim 17 is recorded, the read instruction data position information is recorded as log information. Even when the instruction data is processed, the instruction data that caused the error can be specified based on the position information of the instruction data. Therefore, appropriate countermeasures can be taken based on the specified command data.

By causing a computer to read a computer-readable recording medium on which the print control program according to claim 18 is recorded, the log information is read.
Since the notification is made to the host device, the instruction data causing the error is confirmed on the host device, and it is possible to take appropriate countermeasures.

[Brief description of the drawings]

FIG. 1A is a block diagram illustrating a schematic configuration of a printing system using a print control device according to an embodiment; FIG. 1B is a block diagram illustrating a configuration of a print control program according to the embodiment;

FIG. 2 is a schematic diagram showing a basic data flow in the embodiment.

FIG. 3 is a flowchart illustrating an outline of a print data interpretation procedure according to the embodiment.

FIG. 4 is a flowchart showing an outline of an instruction block position information storage procedure in the embodiment.

FIG. 5A is a block diagram illustrating the contents of instruction block position information according to the present embodiment, and FIG. 5B is a diagram illustrating an example of print data.

FIG. 6 is a flowchart illustrating an outline of an error processing control procedure in the embodiment.

FIG. 7 is a flowchart showing an outline of an instruction block position information reading procedure in the embodiment.

FIG. 8A is a flowchart illustrating a schematic configuration of an instruction block deletion procedure according to the present embodiment, and FIG. 8B is a diagram illustrating an instruction block deletion method.

FIG. 9 is a flowchart illustrating an outline of an error log notification procedure according to the embodiment.

FIG. 10 is a flowchart showing a schematic configuration of another instruction block deletion procedure in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... CPU 2 ... ROM 3 ... RAM 4 ... HDD 5 ... Display device 6 ... Output I / F 7 ... Input I / F 8 ... Bus 9 ... Printing device 10 ... Printing control device 11 ... Host device 12 ... Network

Claims (18)

[Claims] A receiving means for receiving print data including print processing instruction data; an interpreting means for interpreting the received print data; and an instruction data position for storing position information of the print processing instruction data to be interpreted. Information storage means; error detection means for detecting an error during the printing process executed as a result of the interpretation; and command data position information stored in the command data position information storage means when the error detection means detects an error. Command data position information reading means for reading the command data; command data processing means for converting print processing command data specified based on the read command data position information into non-command data; and print data processed by the command data processing means. To
An error processing control unit for causing the interpreting unit to re-interpret the error. 2. The method according to claim 1, wherein the error processing control unit performs the reinterpretation until no error is detected by the error detection unit or until there is no print processing instruction data to be converted into non-instruction data by the instruction data processing unit. The print control apparatus according to claim 1, wherein a process of causing the print control apparatus to repeat is performed. 3. The non-instruction data, wherein the instruction data processing means rewrites the specified print processing instruction data with data representing a break between instruction data. Item 3. The print control device according to Item 2. 4. The command data processing means overwrites data indicating comment data from the head position of the specified print process command data, thereby uncompressing the specified print process command data. The print control apparatus according to claim 1, wherein the print control apparatus converts the data into instruction data. 5. The apparatus according to claim 1, further comprising an error log recording unit that records the command data position information read by the command data position information reading unit as log information. A print control device according to claim 1. 6. The printing control apparatus according to claim 5, further comprising an error log notifying unit that notifies the host device of the log information recorded in the error log recording unit. 7. A receiving step of receiving print data including print processing instruction data, an interpretation step of interpreting the received print data, and an instruction data position for storing position information of the print processing instruction data to be interpreted. An information storing step, an error detecting step of detecting an error during the printing process executed as a result of the interpretation, and an instruction data position information stored in the instruction data position information storing step. An instruction data position information reading step to be read at the time of detection; an instruction data processing step of converting print processing instruction data specified based on the read instruction data position information into non-instruction data; and printing after processing by the instruction data processing step Data
An error processing control step of re-interpreting in the interpreting step. 8. The re-interpretation of the error processing until the error is no longer detected by the error detecting step, or until there is no print processing instruction data to be converted into non-instruction data by the instruction data processing step. The print control method according to claim 7, wherein the process of causing the print control to be repeated is repeated. 9. The command data processing step of converting the specified print processing command data into non-command data by rewriting the specified print processing command data with data representing a delimiter between command data. Item 9. The print control method according to Item 8. 10. The command data processing step includes overwriting data indicating comment data from the top position of the specified print processing command data,
9. The print control method according to claim 7, wherein the specified print processing instruction data is converted into non-instruction data. 11. The apparatus according to claim 7, further comprising an error log recording step of recording, as log information, the command data position information read in the command data position information reading step. A printing control method according to claim 1. 12. The print control method according to claim 11, further comprising an error log notification step of notifying a host device of the log information recorded in the error log recording step. 13. A computer-readable recording medium on which a print control program is recorded, wherein the print control program causes a computer to receive print data including print processing instruction data; An interpreting step of interpreting, an instruction data position information storing step of storing position information of print processing instruction data to be interpreted, and an error detecting step of detecting an error during a printing process executed as a result of the interpreting. An instruction data position information reading step of reading the instruction data position information stored in the instruction data position information storing step when an error is detected by the error detecting step; and identifying the instruction data position information based on the read instruction data position information. An instruction data processing step of converting print processing instruction data into non-instruction data; The print data after processing by step,
A computer-readable recording medium in which a print control program is recorded. 14. A computer-readable recording medium on which a print control program is recorded, wherein the print control program causes the computer to execute the error processing control step until an error is no longer detected by the error detection step. 14. The printing control program according to claim 13, further comprising the step of repeating the process of re-interpreting until there is no print processing command data to be converted into non-command data in the command data processing step. Computer-readable recording medium. 15. A computer-readable recording medium on which a print control program is recorded, wherein the print control program causes a computer to execute the specified print processing instruction data as the instruction data processing step. 15. A computer-readable recording medium in which a print control program according to claim 13 or 14, wherein a step of converting the data into non-instruction data is executed by rewriting the data with a data representing a boundary between the two. 16. A computer-readable recording medium on which a print control program is recorded, the print control program instructing a computer as the command data processing step from a head position of the specified print processing command data. 16. The method according to claim 13, wherein a step of converting the specified print processing instruction data into non-instruction data is performed by overwriting data indicating comment data. A computer-readable recording medium in which the print control program according to the item is recorded. 17. A computer-readable recording medium on which a print control program is recorded, wherein the print control program stores, in a computer, the command data position information read in the command data position information reading step, as log information. 11. A computer-readable recording medium on which the print control program according to claim 7, further comprising an error log recording step of recording as an error log. 18. A computer-readable recording medium on which a print control program is recorded, wherein the print control program causes a computer to store the log information recorded in the error log recording step.
18. The computer-readable recording medium according to claim 17, further comprising an error log notification step for notifying the host device.