JPS63293063A - Document processor - Google Patents

Abstract

PURPOSE:To prevent a data processing from being interrupted even with the overflow of document information, by a method wherein, when a memory for a surface page becomes full during the document-edition processing of the surface page, a blank reverse page is automatically prepand to be outputted to a perfecting recorder. CONSTITUTION:A document edition means (b) inputs document information from a data source (a) to store it into a first storage means (c), reads the document information for a surface page from the first storage means (c) to store it into a second storage means (d), reads the document information for a reverse page from the first storage means (c) to store it into a third storage means (e), and converts the document information to pattern information by a pattern generating means (f) to output it to a perfecting recording system (g) having a recording medium reversing mechanism. Moreover, the document edition means (b) prepares a blank page in the third storage means (e) when the second storage means (d) becomes full and converts the document information to the pattern information to output it to the perfecting recording system (g).

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a document processing device, and more particularly to a document processing device that converts input document information into pattern information and outputs the pattern information.

[Conventional technology]

Conventionally, dot-type double-sided recording devices such as laser beam printers have been proposed that record pattern information on both sides of a sheet of paper using a sheet reversing mechanism. Conventional document processing devices that output pattern information to this type of recording device store input document information page by page in a buffer memory, and then convert the input document information into pattern information using an image pattern generator (character generator). was.

[Problem that the invention seeks to solve]

However, in such conventional character processing devices, when the buffer memory becomes full of document information, an error notification is output and subsequent processing is interrupted.

Therefore, if the error notification occurs and the operator does not intervene, there is a problem in that subsequent data processing does not proceed.

SUMMARY OF THE INVENTION In view of these conventional problems, it is an object of the present invention to provide a document processing device that can avoid interruption of data processing even if document information overflows.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a document processing device that converts input document information into pattern information and outputs it to a double-sided recording system having a recording medium reversing mechanism. A first storage means for inputting and storing document information, a second storage means for storing document information of a front page portion read from the first storage means, and a back page portion read from the first storage means. The present invention is characterized by comprising a third storage means for storing document information, and a document editing means for creating a blank page in the third storage means when the second storage means is full.

[Effect]

The present invention automatically creates a blank back page and outputs it to the double-sided recording device when the front page memory becomes full during document editing processing for the front page. Even if there is an overflow, data processing can be continued without interruption.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the basic configuration of an embodiment of the present invention. In this figure, a is a data source that outputs document information, and B is a data source a.
This is a document editing means for editing document information page by page. The document editing means inputs document information from the data source a and stores it in the first storage means C, and then the first storage means C
The document information of the front page part read from the first storage means d is stored in the second storage means d, the document information of the back page part read from the first storage means C is stored in the third storage means e, and the document information of the front page part read from the first storage means C is stored in the third storage means e. The document information is converted into pattern information by the pattern generating means f and outputted to the double-sided recording system g having a storage medium reversing mechanism. Furthermore, when the second storage means d of the document editing means becomes full, a blank page is created in the third storage means e, and after converting the document information into pattern information, it is output to the double-sided recording system g. .

FIG. 2 shows a circuit configuration of an embodiment of the present invention.

In this figure, 1 is a data source such as a host computer that outputs document information (print information) in character code. This character code includes graphic characters (figure characters) and functional characters (control characters), and graphic characters are characters that can be recorded by printing devices (alphabetic characters, kana, and shallow learning), numbers, and symbol characters (space characters, special characters). , and the functional characters include transmission control characters, format control characters, device control characters, information separation characters, and special control characters that specify the start, change, and stop of control functions.

Reference numeral 2 denotes a document processing device consisting of component parts 3 to 13, which inputs the above-mentioned document information from the data source 1, performs predetermined document editing processing on a page-by-page basis, and converts the document information into dot-structured character pattern information. The data is converted and output to a dot-type double-sided recording device (double-sided printer) 14, which will be described later. 3 is data source 1
4 is an input buffer (memory) into which document information is input and stored, and 4 is an internal ROM (read only memory) 5. According to the control procedure shown in FIGS. 3 and 4, the apparatus according to the present invention c in charge of overall control
pu (central processing unit), 6 is an internal RAM (random access memory) used as a work area for the CPU 4; In addition to control procedures (programs), necessary data and the like are stored in the ROM 5 in advance.

Reference numeral 7 denotes a control code register for analyzing control commands (control characters) in document information, and 8 pre-stores dot pattern information corresponding to graphic characters (graphic characters) such as characters and symbols that can be recorded by the recording device 14. is an image pattern generator (character generator) that
Reference numeral 9 denotes a first page buffer (page buffer 1) dedicated to front pages that stores document information for one page of odd-numbered pages (front pages);
Stores the document information of the table page read from. 1° is a first page memory (page memory l) dedicated to the front page that stores pattern information obtained by converting the document information in the first page buffer 9 by the image pattern generator 8 for one page as an output image. . Reference numeral 11 denotes a second page buffer (page buffer 2) dedicated to the back page that stores document information for one page of even-numbered pages (back page). Store information. Reference numeral 12 denotes a second page dedicated to the back page that stores pattern information obtained by converting the document information in the second page buffer 11 by the image pattern generator 8 for one page as an output image.
page memory (page memory 2).

13 is the output data of the image memory 10.12 mentioned above (
0, which is a printer interface unit that outputs pattern information) to a double-sided printer 14 such as a laser beam printer.
The double-sided printer 13 has a dot-type double-sided recording function for actually outputting pattern information on the front and back sides of paper based on output data from the printer ink face section 13, and has a paper reversing mechanism for this purpose. Since this paper reversing mechanism is a well-known technology, detailed explanation thereof will be omitted.

3 shows the overall control operation of the CPU 4 shown in FIG. 2, and FIG. 4 shows details of the page buffer write process shown in FIG. 3. Next, an example of the operation of the embodiment of the present invention will be described with reference to the flowcharts of FIGS. 3 and 4.

First, in response to the output start signal from data source 1, step 5
At 20, the document information from the data source 1 is stored in the input buffer 3. After that, when the output end signal is received from the data source 1 and all the document information is stored in the input buffer 1, the process moves to step 521, and the input buffer 3 is stored word by word.
Read out the document information in the file sequentially. Next, in step S22, it is determined whether or not the read character is a control command. If the determination is negative, the process proceeds to step S23, which will be described later, to write to the page buffer. If the determination is affirmative, the character is a control command. In the next step S24, the control command is analyzed with reference to the control code register.

As a result of the analysis, if the control instruction is a page break instruction,
Proceeding from step 525 to step 526, the currently written page buffer 9 or 11 is closed, and in the next step 527-1, it is determined whether the closed page buffer is the page buffer 11 for the back side, and an affirmative determination is made. Sometimes, the document information in the first and second page buffers 9.11 is converted into pattern information by the image pattern generator 8, and developed into the corresponding image memories 10.12, and then transferred to the image memories through the printer interface section 13. From step 10.12, the pattern information is output to the printer 14, and after printing is performed on both the front and back sides of the paper, the process proceeds to step 529. Also, step 527-1
If it is determined that the front page buffer 9 is closed, the process directly advances to step S29.

Further, if it is determined in step S25 that the control command is not a page break command, steps 525 to 52
The process advances to step S29, where processes such as line feed and tab movement corresponding to the command are performed, and the process advances to step S29.

In step S29, □ is the document information in the large power buffer 3 (
It is determined whether all the data) have been read out, and if the determination is negative, the process returns to step 521 and the above-described process is repeated.

On the other hand, if the document information read from the input buffer 3 is not a control command, it is a graphic character such as a kana or a number, and a negative determination is made in step S22, so the process advances to step S23 and the page buffer 9, which will be described in detail in FIG. .11 graphic character writing process is executed, and the process advances to step S29.

When the data reading from the input buffer 3 is completed, an affirmative determination is made in step 529, so the process proceeds to step 530, closes the page buffer 9.11, and closes the page buffer 9.
．． After converting the contents of 11 into pattern information with reference to the image pattern generator 8 and developing them in the corresponding image memories 10.12, the pattern information of the output image read from the image memories 10.12 is output to the printer 14. Then, printout is performed on the front and back sides of the paper, and this process ends. Note that if data reading is completed while the front page is being written, the back side will be output as a blank page.

Next, the flowchart of FIG. 4 will be explained. First, in step 532, it is determined whether a front page (odd numbered page) or a back page (even numbered page) is currently being created by referring to a flag set in the internal RAM 6, and the front page is created. If so, proceed to step 533. In step 533, it is determined from the value of the internal counter whether or not the page buffer 9 dedicated to the front page is full (overflow). If it is not full yet, the process proceeds to step 533. At step 521, the document information (character code) read from the input buffer 3 is written into the page buffer 9 together with the print position information counted by the CPU 4, and the process returns to the main routine to proceed to step 529 in FIG.

When the page buffer 9 dedicated to the front page is full, an affirmative determination is made in step S33, so step 53
Proceed to step 5 and close that page buffer 9,
Next, in step S36, the page buffer 1 dedicated to the back page is
1 is created on a blank page by writing a blank (space), and in step S37, the contents of both page buffers 9.11 are converted into pattern information using the image pattern generator 8, and developed in the corresponding image memory 10.12. . Subsequently, in step 53B, the pattern information in the image memory 10.12 is outputted through the printer interface section 13 to the double-sided printer 14 equipped with a paper reversing mechanism, and the printer 14 records the contents of the first image memory 10 on the surface of the paper. , the contents of the second image memory 12 are recorded on the back side of the paper. Therefore, in this case, information is recorded only on the front side of the paper, and the back side is blank.

After that, return to the main routine and step S2 in FIG.
9, and further returns from step S29 to step 521 to continue the process, so that the information of the overflow portion can be started to be written from the first page buffer 9 dedicated to the front page without interruption.

On the other hand, if it is determined in step 532 that the back page is being created, the process proceeds to step 539, where it is determined from the internal counter value whether or not the page buffer 11 dedicated to the back page is full, and if it is still full. If not, first write the document information (character code) read from the input buffer 3 in step 521 to the page buffer 11 together with the print position information counted by the CPU 4, return to the main routine, and proceed to step S29 in FIG. move on.

If it is affirmatively determined that the page buffer 11 is full in step S39, the process proceeds to step 541, closes the page buffer 11 for the back page, and performs the next step S4.
2 for both page buffers9. l! The contents of the image pattern generator 8 are used to convert the contents into pattern information, and the pattern information is developed in the corresponding image memory 10.12. Subsequently, step 543
The pattern information in the image memory 10.12 is output to the double-sided printer 14 through the printer interface unit 13, and the printer 14 records the contents of the image memory 10.12 on the front and back sides of the paper.Then, the process returns to the main routine and the third From step S29 to step 521 in the figure
Return to and continue the above process. Therefore, in this case as well, the processing continues without interruption, and the information on the overflow portion on the back side is written from the first page buffer 9 for the front side.

In the above embodiment, in order to simplify the explanation, the page buffer 9.11 and the image memory 10.12 each have a storage capacity of one page, but the present invention is not limited to this, and each has a storage capacity of one page. Of course, the front and back sides of a plurality of pages may be printed at the same time by storing the following information.

Note that in this embodiment, when the front page page buffer 9 becomes full during front page creation, a blank back page is automatically created. Should the host computer of the data source 1 be notified of this and output a blank back page, should the remaining data be written to the back page page buffer 11 as back page data, or should the remaining data be skipped? The operator may be able to select and instruct which of the following is to be performed. In this case as well, interruption of processing can be avoided by automatically outputting document data on a blank back page when there is no intervention by the operator for a selection instruction for a certain period of time.

〔Effect of the invention〕

As explained above, according to the present invention, when the front page memory becomes full during document editing processing for the front page, a blank back page is automatically created and output to the double-sided recording device. As a result, even if document information overflows into the memory, interruption of data processing can be avoided and processing can be continued.

[Brief explanation of the drawing]

1 is a block diagram showing the basic configuration of an embodiment of the present invention; FIG. 2 is a block diagram showing a circuit configuration of an embodiment of the present invention; FIG. 3 is a flowchart showing an example of the operation of the embodiment of FIG. 2; FIG. 4 is a flowchart showing details of the page buffer reading process of FIG. 3. DESCRIPTION OF SYMBOLS 1... Data source, 2... Document processing device, 3... Input buffer, 4... CPU. 5...ROM, 6...RAM. 7... Control code register, 8... Image pattern generator, 9... Page buffer (for front side), 10... Image memory (for front side) 11... Page buffer (for back side), 12 . . . Image memory (for back side), 13 . . . Printer interface unit, 14 .

Claims (1)

[Claims] 1) a) Converting input document information into pattern information,
In a document processing device that outputs to a double-sided recording system having a recording medium reversing mechanism, b) a first storage means for inputting and storing the document information; and c) a first storage means for storing the document information read from the first storage means. a second storage means for storing document information; d) a third storage means for storing document information of the back page portion read from the first storage means; and e) when the second storage means is full. A document processing device comprising: document editing means for creating a blank page in the third storage means when the error occurs. 2) In the apparatus according to claim 1, when the second storage means becomes full, the document editing means stores the overflowing document information in the second storage means after outputting the blank page. A document processing device characterized by storing information and outputting it as a front page.