JPS63276965A - Data management processing system for laser printer - Google Patents

Abstract

PURPOSE:To simplify the page management by referencing sequentially the content of a management table of data kind information and expanding it on a bit map memory. CONSTITUTION:Various data from a host 4 are stored in a processing section 7 via a buffer 6 then sent to a management table 16. The management data is generated on the table 16 in the order corresponding to the input data and stored. An expansion processing section 9 reads the management data on the table 16 sequentially and expands the content of corresponding control data buffer 8-0, image data buffer 8-1, vector data buffer 8-2 and character data buffer onto the bit map memory 10. Then the page is updated every time the end data of the said page is expanded.

Description

[Detailed Description of the Invention] [Summary] Transmitted data is stored in dedicated data buffers according to the data type.

A management table that manages data type information for various data transmitted in a laser printer that reads the contents of various data buffers and develops one page on a bit map memory when printing out. make a profit.

The contents of the management table are sequentially referenced and expanded onto the bit map memory.

It is disclosed that page management is simplified.

[Industrial application field]

The present invention relates to a data management processing method for laser blinking, in particular, a system in which image data, vector data, and character data are transmitted in a mixed form, and the transmitted data is stored in a dedicated data buffer for each data type. Store it in
In a laser printer that develops the contents of the data buffer onto a bit map memory during print output, a laser that simplifies page management by managing transmitted data chunks using data type information.・Printer data management processing method [Prior art] Laser printers have conventionally managed control data as well as image data, vector data, and character data that exist (or do not exist) within a page. each as one block, and the above character data is placed at the end.

It is transmitted from the host. These various types of data are stored in dedicated data buffers, and when printing is performed, they are read from the respective data buffers, expanded for each page on the bit map memory, and printed. It will be done.

In this case, it is managed which page of data each chunk of data corresponds to.

FIG. 5 shows an explanatory diagram for explaining the concept of conventional management.

poc <print out control) data 1
-0. Image data 1-1. Vector data 1-
20 character data 1-3. Image data 1-49 Character data 1-5. Vector data 1-61 character data 1
-71 character data 1-8 is transmitted. Note that the POC data shown in Figure 9 is control data for printing out, and the data that follows.

(i) If image data exists within one page, transmit the image data at the beginning of the page.

(ii) Similarly, if vector data exists, the vector data is transmitted before the character data.

(iii) Identify character data that always exists within one page.

In the form of transmission at the end of the page.

It's being transmitted.

From this promise, in the case shown in FIG. 5(A).

Data 1-0 is POC data, and data 1-1 to 1-3 are data within the first page.

Data 1-4 and 1-5 are data in the first page, data 1-6 and 1-7 are data in the second page, and data 1-8 are data in the third page. It is determined that the data is 9.

For the above various data, each dedicated management table 2
Management information is stored on the management tables 2-0 to 2-3, and when printing, data belonging to the same page is extracted from the contents of the management tables 2-0 to 2-3, and bit
It is expanded on map memory and printed. Figure 5 (B) represents this situation, and Figure 5 (B) shows this situation.
A) As shown in the figure, the transmitted data is managed in dedicated management tables 2-B to 2-3.2And when printing, the 0th page is stored in accordance with the contents of each management table. Data 1-0 to 1-3 belonging to
management data (3-0 or 3-3 in the case shown)
If exists, the above data 1-1 to 1-3 are grouped together as the first page, and data 1-3 belonging to the first page is expanded on the bit map memory. Management data regarding 4 and 1-5 (
In the illustrated case, it is checked whether or not 3-4 or 3-5) exists, and the first page is developed on the bit map memory in the same manner as above.

FIG. 6 shows an example of the configuration of a conventional laser printer. Reference numbers 2-0 to 2-3 in FIG. 0 correspond to FIG. 5, and 4
is the host, and 5 is the laser printer.

6 is a receiving buffer, 7 is a data storage processing unit, and 8-0 to 8-3 are dedicated data buffers.

9 is an expansion processing unit, and 10 is a bit map memory.

11 represents the printer mechanism.

From the host 4, as shown in FIG. 5(A).

Various data 1-0 to 1-8 are transmitted, and these are received by the reception buffer 6.

The data storage processing unit 7 distributes and stores the data into dedicated data buffers 8-0 to 8-3, respectively. At this time, the management table 2 is
Management data (management data 3-0 to 3-8 shown in FIG. 5) is stored above -0 to 2-3.

FIG. 7 shows the structure of management data on a management table. Reference numeral 2-i in FIG. 7 is a management table.

13-i is a dedicated data buffer, 12-i is page number information, 13-i is a data pointer, 14-i is a pointer to the beginning of valid data in the data buffer, 15-
i is the valid data end pointer in the data buffer,
DATA-i represents the data storage area (or its data) pointed to by the data pointer 13-i.

That is, in the conventional case, each management data 2-1
together with the location on the dedicated data buffer 8-i where the relevant data is stored.

It is arranged to manage which page the data belongs to.

In the configuration shown in FIG. 6, the expansion processing section 9 operates for printout, and each management table 2-0 to 2-2
-3, data belonging to the 0th page is found from the respective dedicated data buffers 8-0 to 8-3, and expanded onto the bit map memory 10. Then, the data belonging to the first page is found from the respective dedicated data buffers 8-0 to 8-3, and the bits are
These expanded data are expanded onto the map memory 10, and are sequentially transferred to the printer mechanism 11.
It is printed out by.

FIG. 8 shows a processing flow in the expansion processing section 9. As can be seen from the processing flow, PO in the processing shown in FIG.
The C data is checked, and if POC data exists, processing in process (2) is performed.

Next, it is checked in process (2) whether or not image data belonging to the θ-th page exists.

If it exists, it is developed on the bit map memory 10. Similarly, vector data and character data are processed in the process ■■■■.

In process (2), the printer mechanism 11 is activated and printing is performed. Then, in the processing phase, preparations are made for processing data belonging to the next page number.

[Problem that the invention seeks to solve]

In the conventional case, as described above, a page number is provided in the management data to manage which page each piece of data belongs to. When expanding onto the bit map memory, the presence or absence of data belonging to the page currently being processed is checked based on the page number. For this reason, the checking process is complicated.

In the first place, when it comes to data for one page.

As explained in connection with FIG. 5(A), the data is transmitted in the order according to a predetermined agreement, and once the order of the various data is known, the processing in the expansion processing section 9 is performed. is executable, but as mentioned above, the page is changed to P! It is not necessary to adopt a configuration that recognizes the

[Means for solving problems]

The present invention solves the above problems by managing the order in which data is transmitted and the type of data that is transmitted.

FIG. 1 shows a basic configuration diagram of the present invention. Code 1-0 in the diagram
1 to 1-8 are data, respectively, and correspond to FIG. Further, 8-ro to 8-3 are dedicated data buffers, respectively, and correspond to FIG. 13-0 to 1
3-8 are data pointers, respectively, and correspond to FIG. 16 is a management table used in the present invention;
17-0 to 17-8 each represent data type information.

In the case of the present invention, when data 1-0 to 1-8 are transmitted in order, they are stored on the management table 16.

A set of management data consisting of (i) data type information and (11) data pointer is created and held in the above transfer order. At this time, needless to say, data 1-0 is stored at the position pointed to by each data pointer, for example 13-0. That is, since data 1-0 is POC data, data pointer 13-0 points to a predetermined position on data buffer 8-0 for POC, and data 1-0 is stored at that position. Ru.

[Effect]

In the case of the present invention, management data is held on the management table 16 in the order in which the transmission data is received, with data type information 17-1. Therefore, when printing, the contents of the management table 16 are read out in order, and the contents of the data buffer are expanded onto the bit map memory. It will be processed as if the expansion has finished.

〔Example〕

FIG. 2 shows the configuration of an embodiment of the present invention, FIG. 3 shows a mode of data management, and FIG. 4 shows a processing flow of an embodiment of the expansion processing section.

In FIG. 2, reference numeral 4. 6. 7. 9. 10.degree. 11 corresponds to FIG. 6, and 8-1 and 16 correspond to FIG. Further, in FIG. 3, the symbols 14 i, 1
5-t+ DATA-i corresponds to Fig. 7, and 13
-i and 17-i correspond to FIG.

In the case of the present invention, as described with reference to FIG. 1, management data is created and held on the management table 16 in the order of transmitted data. . The expansion processing unit 9 then uses the management table 16
The above management data is read out in order, and the contents of the corresponding data buffers 8-0 to 8-3 are expanded onto the bit map memory 10. When one character data is expanded, one page is read out. It is assumed that the development for the last minute has been completed.

In FIG. 4 showing the expansion processing flow.

Processing is performed as follows.

(In 11 process (2), the management table 16 is referred to.

(2) If the found management data corresponds to POC data, processing for the poc data is performed in process@. Then, in process O, the management table is updated in preparation for referring to the ninth management data.

(If the management data does not correspond to 31POC data, either (i) management data corresponds to image data, (ii) management data corresponds to vector data, or (ffl) management data corresponds to character data. It is checked whether the data is 1, for example, if it is management data corresponding to image data, processing in process 0 is performed.

(4) Finally, when processing related to character data is performed in Process @, the printer mechanism
The printer is started at , one page is printed, and the process moves to process O.

〔Effect of the invention〕

As explained above, according to the present invention, it is only necessary to sequentially read out the management data created in order and develop it on the bit map memory, and as in the conventional case, the desired j-th There is no need to check whether data belonging to a page exists.

[Brief explanation of drawings]

Fig. 1 is a diagram of the principle configuration of the present invention, Fig. 2 is a configuration of an embodiment of the invention, Fig. 3 is an aspect of data management, Fig. 4 is a processing flow of an embodiment of the expansion processing section, and Fig. 5 is a diagram of an embodiment of the present invention. An explanatory diagram for explaining a conventional concept, FIG. 6 shows a conventional configuration, FIG. 7 shows a conventional data management mode, and FIG. 8 shows a conventional expansion control processing flowchart. In the figure, 1-1 is data and 3-1 is management data. 4 is a host, 5 is a laser printer, 8 is a data buffer, 9 is an expansion processing unit, 10 is a bit map memory, 13-i is a data pointer, 16 is a management table,
17-th item represents data type information.

Claims (1)

[Claims] As long as control data is transmitted and image data, vector data, and character data that may exist in a page exist in the page, these data are The various data transmitted are sent to a dedicated control data buffer (8-0) and an image data buffer (8-1), respectively. Vector data buffer (
The data buffer (8-2) and character data buffer (8-3) are stored separately, and the contents of each data buffer (8-0 to 8-3) are read out and stored in the bit map memory (10 ), the data type information (17-i) of the data and the data type information (17-i) of the data are stored in the laser printer (5), which expands the data into one page to be printed and then prints it. Data buffer (8-i) corresponding to the above various data to store the data
A management table (16) is created that stores management data paired with the above pointer (13-i) in the order of the transmitted data, and a The data to be received is stored in the various data buffers (8-i) and expanded onto the bit map memory (10), while sequentially referring to the management data on the management table (16). , the page is updated every time the data on the various data buffers (8-i) are read and expanded, and data at the end of the page at the predetermined location is expanded. Data management processing method for laser printers.