JPH0345992A - Dynamic loading for character information and character processing control system - Google Patents

Abstract

PURPOSE:To reduce the memory capacity of the dynamic loading-used area of a character information control table while maintaining fast character processing characteristics by comparing the size of the dynamic loading-used area of the character information control table with normal fast processing guarantee size and performing specific processing according to their large-small relation. CONSTITUTION:An output device compares the size of the dynamic loading-used area 112 with the size of the area where normal fast processing is guaranteed and perform the specific processing according to the large-small relation. Namely, the normal fast processing guarantee size is set about, for example, four times as large as a dynamic loading dedicated area 112a. When the use area of the character information control table 11A is larger than the normal fast processing guarantee size processing units of one character string, the dynamic loading control and character processing of the table 11A are performed by the normal fast processing. When the use area of the table 11A is smaller, exceptional slow processing which uses one character as processing units is performed. Consequently, the memory capacity of the dynamic loading use area is reduced.

Description

[Detailed Description of the Invention] [Summary] This invention relates to dynamic load control of character information and character processing method in an output device such as a printing device that receives missing character information generated during character processing from a host device and continues character processing. , aims to reduce the memory capacity of the dynamic load area of the character information management table while maintaining high-speed character processing characteristics.When insufficient character information occurs during character processing, the missing character information is sent from the host device. is received during character processing, and the character management information is dynamically loaded into the character information management table to continue character processing.In the dynamic loading of character information and character processing control method of an output device, dynamic loading is used in the character information management table. When the area is larger than the size that guarantees normal high-speed processing, dynamic loading of character management information to the character information management table and character processing control is executed by normal high-speed processing, and when it is smaller than the above size, exceptional low-speed processing is performed. The system is configured to dynamically load character management information into a character information management table through processing and perform character processing control.

[Industrial application field] When missing character information occurs during character processing, the missing character information is received from a host device that supports character information resources during character processing, and the character management information is dynamically stored in the character information management table. The present invention relates to a dynamic loading of character information and a character processing control method for output devices such as printing devices and displays that load and continue character processing.

[Conventional technology]

In output devices such as printers and displays, in order to output characters at high speed, a character information management table is provided to manage character information, and character processing is performed in units of one character string (one line). .

Character processing that is performed in units of one character string (one line) is called normal high-speed processing, and it can execute character processing faster than exception-type slow processing that processes each character code system as a unit of processing. .

FIG. 4(A) illustrates normal type high-speed processing, and FIG. 4(B) illustrates exceptional type low-speed processing. In normal high-speed processing, one character string (one line) is formed by multiple character code systems (for example, Japanese and English) or various character shapes with the same character code system but with different fonts, character sizes, etc. . When outputting this one string of characters (printing, display, etc.),
First, character processing is performed: from each character code of the print data consisting of a character string of character codes sent from the host device, character code-specific information that gives address information of the character pattern data corresponding to that character code is obtained, and the information is stored in the page buffer. Processing to store the data is performed.

When missing character information is detected during character processing, that is, when character information corresponding to a character code is missing (indicated by a fault in the figure), calculate all missing character information that occurs in one character string, These are collectively notified to the higher-level device to request transfer of the missing character information. When the missing character information is sent from the host device, character processing is re-executed for the previously sent one character string of print data.

When character processing is completed, one character string of character pattern data is obtained using the character code information as an address, developed on the bitmap memory, and printed by the printing mechanism section.

On the other hand, in the exceptional low-speed processing, character processing is performed for each character code as shown in FIG. 4(B). Within one character code system, characters of various character shapes with different fonts, character sizes, etc. are used. When missing character information is detected during character processing in one character code system (indicated by a fault in the figure), find all the missing character information that occurs in the character string part of that character code system, and put them in - brackets. and notifies the higher-level device to request transfer of the missing character information. When missing character information is sent from the host device, character processing is re-executed for the character string portion of that character code system. Thereafter, character processing is performed for each character code system in the same manner, and the processing for one character string is completed.

While normal high-speed processing requests missing character information from the host device once during character processing of one character string, exception-type low-speed processing requests missing character information from the upper level device during character processing of one character string. Since the number of requests to the device increases (four times in the case of FIG. 4), character processing becomes slower than normal high-speed processing.

Note that the character code systems in normal high-speed processing and exceptional low-speed processing do not need to be different; one character code system is dispersed in one character string, such as when a foreign language is mixed in one Japanese language. It doesn't matter if it exists.

In addition, in exception-type low-speed processing, if each character code system consists of only one character, character processing is performed in units of characters, so exception-type low-speed processing also includes character processing in units of one character as its processing type B. It is something that

Next, with reference to FIG. 5, the character information management table used during normal high-speed processing and exceptional low-speed processing, and the conventional dynamic loading of character information and character processing control method using this character information management table will be explained. .

In FIG. 5, 41 is a character information management table;
Character management information for managing character information sent from a higher-level device such as a host computer (not shown) is stored.

The character information includes (1) character pattern data to be printed, (2) character code-specific information that provides address information for the character pattern data, and (2) character management information for searching character code-specific information from character codes.

The character management information loaded into the character information management table 41 includes font, character size, information conversion information by character code, etc., and the character code is deciphered and the character information management table 4
1, character code-specific information corresponding to that character code can be searched. The character code-specific information conversion information converts the font, character size, etc. into character code-specific information corresponding to the character code.

The entire area of the character information management table 11A is used as a resident area for storing the character management information of the character information sent from the host device, but the empty area is used to store the character management information of the missing character information requested from the host device. It is used as a dynamic load area to store. 42+~42m
indicates the storage area of each character management information stored in the resident area, and 42 on the right side shows these together as one character management information resident area. Also, 43. 43 shows the storage area of character management information related to each missing character information stored in the dynamic load usage area, and old damage 4
3 shows these as one dynamic load usage area.

Reference numeral 44 is a character code-specific information table in which character code-specific information is stored. 45 is a character pattern area on a memory (not shown), in which character pattern data of character information is stored.

In this configuration, when outputting characters to an output device such as a printing device, the host device sends character information normally used for character processing to the output device as an initial setting process.

When the output device receives this character information, it stores the character management information therein in the free space of the resident area 42 of the character information management table 41, stores the character code-specific information in the character code-specific information table 44, and stores the character The pattern data is stored in the character pattern area 45 of the memory.

When the character information storage process and the creation process of the character information management table 41 through the above initialization process are completed, the host device sends print data consisting of character codes for one character string (one line) to the output device.

The output device decodes each character code in this print data, refers to the character information management table 41, obtains the character code information corresponding to the character code from the character code information table 44, and stores it in a page buffer (not shown). Store. In the same manner, each character code-specific information corresponding to each character code of one character string is obtained and stored in a page buffer (not shown).

If there is no character management information corresponding to the character code of the print data, that is, if there is a shortage of character information,
The output device requests the higher-level device to transfer the missing character information.

When the missing character information is sent from the host device, the output device re-executes the interrupted character processing and completes the character processing for one character string (one line).

That is, in the same manner as described above, the output device stores the character management information of the missing character information in the free permanent area of the character information management table 41, that is, the dynamic load use area 43, and stores the character pattern data in the character pattern area 45.
Store in.

The character processing described above is performed by the above-mentioned normal type high-speed processing or exceptional type low-speed processing.

It goes without saying that the character form output to the output device will differ depending on the character code system (Japanese, English, etc.), but even within the same character code system, the font (for example, Mincho font, Gothic font, textbook font) and character They vary depending on size etc.

In this way, when character processing is performed using a plurality of character shapes such as different fonts and character sizes in different character code systems or the same character code system, character information for each character shape is sent from the host device to the output device.

When the output device receives the character information of each character form from the host device, it stores the character management information therein in the free space of the resident area 42 of the character information management table 41, and converts the information by character code into the information by character code. The character pattern data is stored in the table 44, and the character pattern data is stored in the character pattern area 45 of the memory.

Therefore, the character information management table 41, character code information table 44, and character pattern area 45 contain character management information for each character form, character code information, and character information that differ depending on the character code system, font, character size, etc. of the character to be processed. It is necessary to have a sufficiently large capacity to store all the pattern data.

[Problem to be solved by the invention]

Output devices that receive character information about characters to be processed from a host device and perform character processing may use different character code systems,
When character processing is performed using multiple character forms such as different fonts and character sizes in the same character code system, character information such as the font or character system is sent from the host device to the output device as described above, and the output device The character management information was stored in a character information management table, the information by character code was stored in the information table by character code, and the character pattern data was stored in the character pattern area.

Therefore, the character information management table, character code information table, and character pattern area store character management information, character code information, and character pattern data for each character system that differs depending on the character code system, font, character size, etc. of the character to be processed. It needed to have a large capacity to store everything. In particular, in the case of normal high-speed processing, character processing is performed in one character train, which includes characters of many character shapes, so the dynamic load of missing character information that occurs during character processing must also be taken into account. It was necessary to make the memory capacity of the character information management table sufficiently large. For example, if the dynamic load usage area of the character information management table for one character code system requires approximately 500 KB, a large capacity of 2 MB or more is required for character output using a 4-character code system. be.

In this way, conventional output devices that process character information by receiving character information about characters to be processed from a higher-level device can handle character processing using multiple character forms with different character code systems, fonts, character sizes, etc. In order to accommodate this, there was a problem in that the capacity of the character information management table became large.

In particular, in recent years, when there is an increasing need for character output in which characters of multiple character codes are mixed in one character string, such as expressing one sentence in multiple Japanese languages, character processing is performed at the level of one character train. In the case of normal type high-speed processing, there is a problem that the capacity of the character information management table becomes extremely large compared to exceptional type low-speed processing in which characters are processed at the speed of one character code spinning wheel.

The present invention provides a dynamic load control and character processing method for character information that makes it possible to reduce the memory capacity of the dynamic load usage area of a character information management table while maintaining high-speed character processing characteristics. purpose.

[Means to solve the problem]

In order to reduce the memory capacity of the dynamic load area (dynamitter load exclusive area) of the character information management table while maintaining high-speed character processing characteristics, it is necessary to satisfy the following conditions.

■ No functional limitations (for example, font restrictions, etc.) are imposed on character processing due to dynamic loading, ■ Normal processing must be fast, ■ Exception processing must be as fast as possible, ■ Character information management The format of the table is
Both the resident area and the dynamic load use area must have the same format (this condition is required by (1) and (2)).

The means adopted by the present invention to solve the above-mentioned problems while satisfying these conditions will be explained below with reference to FIG. FIG. 1 is a block diagram showing the basic configuration of the present invention, and (A) to (C) in the figure show each processing stage of the present invention.

In FIGS. 1(A) to (C), reference numeral 11 has a character management information memory, and a character information management tape 11A in which character management information is stored and a character code classified information table 11B in which character code classified information is stored are provided. It will be done.

In the character information management table 11A, 111 is a resident area, in which character management information loaded at the time of initial setting is stored. 111a is a used area where character management information is stored, and 1llb is an unused area where character management information is not yet stored.

112 is a dynamic load use area in which character management information for missing characters is stored during character processing. 112
A is a dynamic load exclusive area, used only for dynamic loading of character management information, and has a size that can store at least one character code type character management information.

The areas of the resident area 111 and the dynamic load use area 112 are not fixed, but vary depending on the number of character features to be processed. However, the area of the dynamic load use area 112 is not smaller than the dynamic load exclusive area 112a. The dynamic load used area 112 is composed of the dynamic load exclusive area 112a and the unused area 111b of the resident area.

The present invention provides the character information management table 1 as described above.
1, and is configured as follows.

In other words, when missing character information occurs during character processing,
Dynamic loading of character information and character processing on an output device that receives missing character information from a host device that supports character information resources during character processing, dynamically loads the character management information into the character information management table, and continues character processing. In the control method, (a) If the dynamic load usage area in the character information management table is larger than the size that guarantees normal high-speed processing with one character string as a processing unit, the normal high-speed processing to the character information management table is Executes dynamic loading of character management information and character processing control; (b) If the dynamic load usage area in the character information management table is smaller than the size that guarantees normal high-speed processing, an exception is created in which each character code system is processed as a unit; The system is configured to dynamically load character management information into a character information management table and control character processing using low-speed processing.

[For production]

The operation of the present invention will be explained with reference to FIGS. 1(A) to 1(C).

If no missing characters occur during character processing, normal high-speed processing is executed and character processing ends. However, if missing characters occur during character processing, the following three-step process is performed to dynamically load character information. Processing takes place.

(A) When a missing character occurs during the first stage character processing, the output device notifies the host device of the occurrence of the missing character. When the host device receives this notification, it sends the character information of the missing characters to the output device in character string units.

The output device receives character information from the host device and sequentially stores the character management information in the dynamic load usage area 112 of the character information management table 11 in character string units. If all the character management information of the missing characters can be stored in the dynamic load usage area 112, character processing using normal high-speed processing is re-executed after receiving the missing character information.

However, when there is a large amount of missing character information sent from a host device, such as when the missing character information is in another character code system, the dynamic load usage area 112 may become full. In (a) of Figure 1(A), dynamic load usage area 1 is displayed during character processing for the fourth character string.
12 indicates that a full state has occurred.

(B) If a full state occurs in the second stage dynamic load usage area 112, the output device performs processing to expand the character string that is not in the full state into a bitmap memory (not shown),
This expansion process clears the area of character strings that are no longer needed.

(b) in Figure 1 (A) shows that up to the third character string that does not reach the full state is subject to expansion processing, and Figure 1 (B)
(C) and (d) show a state in which the area up to the third character string has been cleared.

(C) The third stage output device compares the size of the dynamic load usage area 112 newly created by the above-mentioned clearing process with the area size that guarantees normal high-speed processing, and performs the next process based on the size relationship. 0 The guaranteed high-speed processing size of the normal type is selected to be, for example, about four times the size of the dynamic load exclusive area 112a.

■ If the dynamic load usage area of the character information management table 11A is larger than the size that guarantees normal high-speed processing with one character string as a processing unit, dynamic load control and character processing of the character information management table 11A using normal high-speed processing is performed. Execute.

■ Dyna'□ in the character information management table When the ivy load usage area is smaller than the size that guarantees normal high-speed processing, exceptional low-speed processing is performed with one character as a processing unit.

(e) and (f) of FIG. 1(C) show that the fourth character string is reprocessed from the beginning in a specified manner, and the fifth character string is also continued as is.

As described above, when the dynamic load usage area in the character information management table is larger than the size guaranteed for normal high-speed processing, dynamic load control and character processing of the character information management table by normal high-speed processing are performed, and normal high-speed processing When the size is smaller than the guaranteed size, exception-type low-speed processing is performed, so while maintaining high-speed character processing characteristics, the dynamic load usage area of the character information management table (
The memory capacity of the dynamic load dedicated area can be reduced.

〔Example〕

Embodiments of the present invention will be described with reference to FIGS. 1 to 4, taking as an example the case where the output device is a printing device. Figure 2 is an explanatory diagram of the configuration of an implementation system according to an embodiment of the present invention;
The figure is a control processing flowchart of an embodiment of the present invention. 1 and 4 have already been described.

(A) Structure of Embodiment In FIG. 2, the character management information memory 11, character information management table 11A, resident area 111, and dynamic load exclusive area 112a are as described in FIG. lO is the overall output device, which in this example is a printing device. 30 is a host device such as a host computer.

In the character management information memory 11, 11B is a character code-based information table, in which character code-based information in character information is stored.

12 is a main memory in which control programs for the main controller, character pattern data in character information, etc. are stored.

121 is a character pattern area where this character pattern data is stored.

Reference numeral 13 denotes an interface unit, which performs processing for exchanging commands, data, etc. with the host device 30.

14 is a reception buffer, in which data such as character information received from the host device 30 is temporarily stored.

Reference numeral 15 denotes a character information loading unit, which stores the character management information in the character information in the character information management table 11A, stores the character code-specific information in the character code-specific information table 11B, and loads the character pattern data in the character information. Processing is performed to store it in the character pattern area 121 of the main memory 12.

Reference numeral 16 denotes a normal type high-speed processing unit, which performs normal type high-speed processing using one character string as a character processing unit, and refers to the character information management table 11A and calculates information for each character code of one character string from the character code information table 11B. Information for each character code is obtained and stored in the page buffer 18.

Reference numeral 17 denotes an exception-type low-speed processing unit, which performs exception-type low-speed processing using one character code system as a processing unit, and refers to the character information management table 11A to create the character code information table 1.
Character code information for each character code for each character code system is obtained from 1B, and finally the character code information for each character string is stored in the page buffer 18.

20 is a character pattern development section, and a page buffer 18
1 from the character pattern area 121 of the main memory 12 with reference to
Character pattern data for a character string is extracted and developed at a predetermined position on the bitmap memory 21.

Reference numeral 22 denotes a print control unit, which takes out a character pattern for one character string developed on the bitmap memory 21 and sends it to the printing mechanism unit 23, and also controls the printing mechanism unit 23 to Make the pattern print.

The printing mechanism section 23 is a mechanical section that includes a paper feeding mechanism, a printing mechanism, a paper ejection mechanism, etc., and performs printing on printing paper.

24 is a main controller, which controls the operation of the entire printing apparatus including the operation control of each section, and controls communication with the host device 30.

A system bus 9 connects the main controller 24 and each of the above-mentioned sections to transfer various control signals and data.

The host device 30 supports character information and sends commands and character information necessary for printing processing, as well as missing character information to the printing device.

(B) Operation of the embodiment The operation shown in FIG.
With reference to FIGS. 4 to 4, each processing step of the control processing flowchart in FIG. 3 will be explained.

■ Step S.

At the start of printing processing, the host device 30 sends character information regarding printing characters to the printing device as an initialization process.

When the main controller 24 of the printing device IO receives the character information via the interface section 13, it stores it in the reception buffer 14 and instructs the character information loading section 15 to load the character information.

Upon receiving this instruction, the character information rotor unit 15 stores character management information from among the character information in the reception buffer 14 in the resident area 111 of the character information management table 11A in the character management information memory 11, and stores it in the resident area 111 of the character information management table 11A in the character management information memory 11. The information is stored in the character code information table llB.

Processing is performed to store character pattern data in the character information in the character pattern area 121 of the main memory 12.

If there are multiple character shapes, character information for each character shape is sent from the host device 30 and initialized.

■ Step S! When the above character information initialization processing is completed, the host device 30 sends print data for one character string (one line) to be printed, that is, the character code of each character for one character string, to the printing device.

■ Step S3, Step S4 When the main controller 24 of the printing device IO receives print data (character code information) via the interface circuit 13, it stores it in the reception buffer 14, and sends the character code to the normal high-speed processing unit 16. Instruct the development of

Upon receiving this instruction, the normal high-speed processing unit 16 sequentially decodes each character code of one character string in the reception buffer 14, and checks each character code by referring to the character information management table 11A to see if there is any missing character information. Character code information corresponding to the code is searched from the character code information table 11B. When the corresponding character code information is obtained, the corresponding character pattern data is taken out from the character pattern area 121 of the main memory 12 using the character code information as an address and stored in a predetermined position of the page buffer 18.

l If missing character information does not occur for all character codes in a character string, all character code-specific information corresponding to each character code in one character string is stored in a predetermined position on the page buffer 18, and character processing ends. . If insufficient character information occurs, the next step S is a dynamic load control process for the following character information.

(2) Step S5 The normal high-speed processing unit 16 searches for all missing character information for one character string and notifies the main controller 24 of the information. The main controller 24 sends this total missing character information to the host device 30 via the interface section 13. Upper device 30
Upon receiving this notification, sends character information regarding the missing characters to the printing device 10.

When the main controller 24 of the printing device receives the character information of the missing characters via the interface circuit 13, it stores it in the reception buffer 14 and instructs the character information loading section 15 to load the character information.

Note that the reception buffer 14 stores the previously received character information of one character string, and the currently received missing character information is additionally stored therein.

Upon receiving this instruction, the character information loading section 15 loads the character information as shown in FIG.
As explained in A) normal high-speed processing, the character management information is stored in the dynamic load usage area 112 of the character information management table llA again from among all the character information of one character string in the reception buffer 14, and the character information The process of storing the character pattern data in the character pattern area 121 of the main memory 12 and storing the character code-specific information in the character code-specific information table 11B is repeated to dynamically load the character information.

■ Step S.

The character information loading unit 15 loads the character information management table 11 while dynamically loading the character information of one character string.
It is checked whether a full state has occurred in the dynamic load usage area 112 of A.

■ Step S7 In step S, dynamic load usage area 112
If it is not detected that the full state has been reached, the character information loading unit 15 notifies the main controller 24 of the completion of the dynamic loading process. Upon receiving this notification, the main controller 24 instructs the normal high speed processing section 16 to perform normal high speed processing.

The normal high-speed processing unit 16 performs step S described above.

In the same manner as above, each character code of one character string in the reception buffer 14 is decoded in order, and the character information management table 11A is
When the character code information corresponding to each character code is retrieved from the character code information table IIB, and the corresponding character code information is obtained, the character code information is used as an address and stored in the main memory 12. Character pattern area 1
The corresponding character pattern data is taken out from 21 and stored in a predetermined position of the page buffer 18, and the processing for one character string is completed.

(2) Step S - When it is detected in the above step S that the dynamic load usage area 112 is in a full state, the character information loading section 15 notifies the main controller 24 of the occurrence of the full state.

Upon receiving this notification, the main controller 24 instructs the character pattern expansion section 20 to expand the character string up to the one before the full state occurred. In the case of FIG. 1A, the full state occurs at the fourth character string, so expansion up to the third character string is instructed. Generally, since a full state occurs at the nth character string, expansion up to the (n-1)th character string is instructed.

Upon receiving this expansion instruction, the character pattern expansion unit 20 takes out the character pattern data of the first to third character strings from the character pattern area 121 using each character code information in the page buffer 118 as an address, and
Expand each to the specified position above.

(Step S9) When the character pattern development unit 21 completes the character pattern development process for the first to third character strings, the main controller 24 instructs the character information loading unit 15 to Clears the character management information of a string.

Since the character management information of the character code for which character pattern development processing has been completed is unnecessary, clearing it will not hinder subsequent character processing.

[Phase] Step SIO After clearing the character management information of the first to third character strings, the character information loading unit 15 determines the size relationship between the newly formed dynamic load usage area 112 and the normal high-speed processing guaranteed size. By comparing these, it is determined whether it is necessary to switch the control method.

When the size of the dynamic load usage area 111b is larger than the size guaranteed for normal high-speed processing, normal high-speed processing is possible, so normal high-speed processing is performed by the main controller 24.
will be notified. When the size of the dynamic load usage area 111b is smaller than the guaranteed size for normal high-speed processing, normal high-speed processing is not possible, so the main controller 24 is notified of exceptional low-speed processing.

When the main controller 24 receives a notification from the character information loading unit 15 of normal type high-speed processing or exceptional type low-speed processing, in the former case, the main controller 24 instructs the normal type high-speed processing unit 16 to start the character processing, and in the latter case, the exception type The low-speed processing unit 17 is instructed to start character processing.

■ Step S11, step S+z Normal high-speed processing unit 1 receiving instructions from main controller 24
6 or the exception-type low-speed processing unit 17 executes character processing for each character string that has generated the full state, that is, the fourth character string.

Note that since a full state may occur during these character processes, these character processes include the above-mentioned steps Ss to S1°.

(2) Step S13 When the character processing for the fourth character string (generally the nth character string) is completed, the main controller 24 instructs the character pattern development section 20 to develop the fourth (nth) character string.

Upon receiving this expansion instruction, the character pattern expansion unit 20 takes out the character pattern data of the fourth character string from the character pattern area 121 using each character code information in the page buffer 18 as an address, and places it in a predetermined position on the bitmap memory 21. Expand to.

@Step S14 When the processing for one character string is completed as described above,
The main controller 24 stores the character string in the bitmap memory 2.
Each time the process of expanding on
to print.

Upon receiving this print instruction, the print control section 22 extracts a character pattern from the bitmap memory 21 at a distance corresponding to one character string, sends it to the printing mechanism section 23, and controls the printing mechanism section 23 to print one character string. The character pattern is printed at the minute wheel position.

In addition, character processing is performed in which information by character code is stored in the page buffer 18 at the level of one character train, and the character pattern of the character string after the character processing is developed on the bitmap memory 21 and then transferred to the print control section 22 and the printing mechanism section. The printing operation in step 23 is performed in parallel. That is, each time character processing for one character string is completed, the main controller 24 notifies the host device 30 and requests print data (character code) for the next character string, and the host device 30 sends the print data (character code) for the next character string. The above-mentioned processes are performed on the print data of each character string sent.

Also, when the number of character strings to be printed is more than n columns,
The above character processing is performed on each character string after the column.

Although the embodiment in which the output device is a printing device has been described above, the present invention can also be applied to output devices such as displays other than printing devices.

〔Effect of the invention〕

As explained above, the present invention performs dynamic load control and character processing of the character information management table by normal high-speed processing when the dynamic load usage area in the character information management table is larger than the normal high-speed processing guaranteed size, Exception type low speed processing is now performed when the size is smaller than the guaranteed high speed processing of normal type, so the memory capacity of the dynamic load area (dedicated for dynamic load) of the character information management table is reduced while maintaining high speed character processing characteristics. can be converted into

[Brief explanation of drawings]

Fig. 1 is a diagram of the principle of the present invention, Fig. 2 is an explanatory diagram of the configuration of an implementation system of an embodiment of the invention, Fig. 3 is a control processing flowchart of the embodiment, and Fig. 4 is a normal high-speed processing and FIG. 5 is an explanatory diagram of the conventional character management information management system. In FIG. 1 and FIG. 2, IO...output device or printing device, 11...character management information memory, 11A...character information management table, 11
1... Permanent area, 112... Dynadata load use area, 112a... Dynamic load exclusive area, 11B
... Information table by character code, 12 ... Main memory, 121 ... Character pattern 113 ... Interface section, 14 section, 16 Processing section, Lotus, 2 Mapme structure section, 2 ... Reception buffer, 15...Character information load...
Normal type high speed processing unit, 17... Exception type low speed 18... Page buffer, 19... System 0... Character pattern expansion unit, 21... Bit memory, 22... Print control unit, 23... ...Printing machine 4...Main controller, 30.
...Upper device.

Claims (1)

[Claims] 1. When missing character information occurs during character processing, the missing character information is received from the host device (30) that supports character information resources during character processing, and the character management information is converted into character information. In the dynamic loading and character processing control method of character information of the output device (10) that dynamically loads the character information into the management table (11A) and continues character processing, (a) the dynamic load usage area (112) in the character information management table (11A); ) is larger than the size that guarantees normal high-speed processing with one character string as a processing unit, the character information management table (11
(2) If the dynamic load usage area in the character information management table is smaller than the size that guarantees normal high-speed processing, each character code system is processed as a processing unit. A dynamic load control and character processing method for character information, characterized in that dynamic loading of character management information to a character information management table (11A) and character processing control are performed by exceptionally low-speed processing.