JPH07334327A - Printer, printing system, and memory resource managing method for the system - Google Patents

Abstract

PURPOSE:To securely prevent the efficiency of printing process from decreasing owing to the easy loss of originally required information with different priority, etc., corresponding to an unequivocal information wiring process by holding necessary important information in a storage medium having limited storage capacity. CONSTITUTION:When, parameter writing is instructed, a CPU 22a updates and registers an instructed new parameter to be written in a free area in a parameter storage area secured by erasing some parameters of low priority stored in the nonvolatile memory 23 by referring to a parameter write state in the parameter storage area of the nonvolatile memory 23 and the process time in priority decision data stored in a RAM 22c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing apparatus having a memory resource for storing various information necessary for printing processing, a printing system, and a memory resource management method for the printing system.

[0002]

2. Description of the Related Art A conventional printing apparatus or printing system is provided with a memory resource for storing various kinds of information necessary for a printing process. For example, a parameter is sequentially written into a non-volatile memory having a predetermined storage capacity. If the parameters cannot be written, that is, if the memory is full, the parameters stored in the non-volatile memory are uniquely selected and the area is rewritten. Memory management Was running.

[0003]

Therefore, an important parameter that is effective for shortening the processing time in the middle by setting it at the time of power-on is forcibly erased when the nonvolatile memory becomes full. However, there is a problem in that it is impossible to guarantee that important parameters are always stored in the nonvolatile memory.

The present invention has been made to solve the above problems, and an object of the first to twelfth inventions of the present invention is to determine a processing condition for each parameter of a nonvolatile memory. By determining the parameters to be rewritten when the non-volatile memory is full, important information that is needed is held in a storage medium with a limited capacity, and is originally needed according to a unique information writing process. It is an object of the present invention to provide a printing apparatus, a printing system, and a memory resource management method for the printing system, which can surely prevent a decrease in print processing efficiency due to information of different priorities and the like being easily erased.

[0005]

According to a first aspect of the present invention, there is provided a printing apparatus which receives print information from a host computer, analyzes the received print information, and prints on a recording medium. First storage means for storing, in a parameter storage area of a predetermined storage capacity, various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for processing print information received from the printer; Second storage means for storing, for each parameter, the processing time required to set the print processing condition according to each parameter stored in the first storage means, and an instruction for instructing writing of the parameter to the first storage means. Means, each parameter in the parameter storage area of the first storage means, and the processing time of each parameter stored in the second storage means. Third storage means for storing a priority determination table for determining the priority order of the replaceable parameters, and a parameter writing state of the parameter storage area of the first storage means at the time of the parameter writing instruction by the instructing means. With reference to the priority determination data stored in the third storage means, a write instruction is issued to a free area of a parameter storage area secured by erasing any of the parameters stored in the first storage means. And a parameter updating means for updating and registering the created new parameter.

According to a second aspect of the present invention, in a printing apparatus which receives print information from a host computer, analyzes the received print information and prints it on a recording medium, the print information received from the host computer is First storage means for storing, in a parameter storage area having a predetermined storage capacity, various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for processing, and stored in the first storage means. A second storage means for storing, for each parameter, a reset level required for setting each of the set parameters, an instruction means for instructing writing of the parameter to the first storage means, and a first storage means. Parameter rewritable from each parameter in the parameter storage area and the reset level of each parameter stored in the second storage means Third storage means for storing a priority determination table for determining the priority order, and a parameter writing state in the parameter storage area of the first storage means and the third storage when the parameter writing instruction is given by the instructing means. By referring to the priority determination data stored in the means, a new parameter instructed to be written is written in a free area of the parameter storage area secured by erasing any of the parameters stored in the first storage means. A parameter updating unit for updating and registering is provided.

A third aspect of the present invention is a new parameter instructed to be written in a free area of a parameter storage area secured by erasing one of the parameters stored in the first storage means by the parameter updating means. A transmission means is provided for transmitting any of the parameters stored in the parameter storage area to be erased to the host computer as the status when the update is registered.

According to a fourth aspect of the present invention, the indicating means is
The command from the host computer is analyzed to instruct the writing of the parameter to the first storage means.

According to a fifth aspect of the present invention, the parameter updating means sequentially updates the priority determination table stored in the third storage means when a new parameter is registered in the first storage means. It is configured in.

According to a sixth aspect of the present invention, the first storage means comprises a non-volatile memory.

According to a seventh aspect of the present invention, the print processing condition is an allocation condition for the memory resource of the printing apparatus main body.

According to an eighth aspect of the present invention, the print processing condition is a data processing condition according to a print mode that can be set in the printer body.

According to a ninth aspect of the present invention, a plurality of printing apparatuses that receive print information from a plurality of host computers via a predetermined network, analyze the received print information, and print on a recording medium are connected. In a printing system configured as described above, various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for processing print information received from the host computer are stored in a parameter storage area of a predetermined storage capacity. A first storage unit for storing the processing time required to set a print processing condition according to each parameter stored in the first storage unit for each parameter; Instruction means for instructing writing of parameters to one storage means, each parameter in the parameter storage area of the first storage means, and the second storage means Third storage means for storing a priority determination table for determining the priority of rewritable parameters from the processing time of each parameter stored in the storage means; One of the parameters stored in the first storage means is erased by referring to the parameter writing state in the parameter storage area of the first storage means and the priority determination data stored in the third storage means. And a parameter updating unit for updating and registering a new parameter instructed to be written in an empty area of the parameter storage area secured by the printing apparatus.

According to a tenth aspect of the present invention, a plurality of printing apparatuses are connected which receive print information from a plurality of host computers via a predetermined network, analyze the received print information, and print on a recording medium. In a printing system configured as described above, various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for processing print information received from the host computer are stored in a parameter storage area of a predetermined storage capacity. A first storage unit for storing the reset processing level required for setting each parameter stored in the first storage unit for each parameter, and the first storage unit for storing the reset processing level for each parameter. An instruction means for instructing the writing of the parameter to the storage means,
A priority determination table for determining the priority of rewritable parameters is stored from each parameter in the parameter storage area of the first storage means and the reset processing level of each parameter stored in the second storage means. The third storage unit for performing the parameter writing, the parameter writing state of the parameter storage area of the first storing unit and the priority determination data stored in the third storing unit when the parameter writing instruction is given by the instructing unit. And a parameter updating means for updating and registering a new parameter instructed to be written in a free area of the parameter storage area secured by erasing any of the parameters stored in the first storage means. .

An eleventh aspect of the present invention is to connect a plurality of printing apparatuses that receive print information from a plurality of host computers via a predetermined network, analyze the received print information, and print on a recording medium. A first storage for storing various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for processing print information received from each host computer in a parameter storage area of a predetermined storage capacity. Means, a second storage means for storing the processing time required to set the print processing conditions according to each parameter stored in the first storage means, and a parameter for the first storage means. Instructing means for instructing writing, each parameter in the parameter storage area of the first storage means, and each parameter stored in the second storage means. In the memory resource management method of the printing system having a third storage unit for storing a priority determination table for determining the priority order of rewritable parameters from the processing time of A reference step of referring to the parameter writing state of the parameter storage area of the first storage means and the priority determination data stored in the third storage means, and one of the reference steps stored in the first storage means. And a parameter updating step of updating and registering a new parameter instructed to be written in a free area of the parameter storage area secured by erasing the parameter.

A twelfth aspect of the present invention is to connect a plurality of printing apparatuses that receive print information from a plurality of host computers via a predetermined network, analyze the received print information, and print on a recording medium. A first storage for storing various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for processing print information received from each host computer in a parameter storage area of a predetermined storage capacity. Means, a second storage means for storing a reset processing level required for setting each parameter stored in the first storage means for each parameter, and a writing of the parameter to the first storage means. Instructing means for instructing, resetting each parameter in the parameter storage area of the first storing means, and resetting each parameter stored in the second storing means. In a memory resource management method of a printing system having a third storage unit for storing a priority determination table for determining the priority order of rewritable parameters from the print processing level, when a parameter writing instruction is given by the instruction unit, A reference step of referring to the parameter writing state of the parameter storage area of the first storage means and the priority determination data stored in the third storage means, and one of the reference steps stored in the first storage means. And a parameter updating step of updating and registering a new parameter instructed to be written in a free area of the parameter storage area secured by erasing the parameter.

[0017]

According to the first aspect of the present invention, when the parameter writing is instructed by the instructing means, the parameter writing state in the parameter storage area of the first storing means and the processing time in the priority determination data stored in the third storing means are set. See
The parameter updating means updates and registers a new parameter instructed to be written in an empty area of the parameter storage area secured by deleting any low-priority parameter stored in the first storage means. Therefore, it is possible to reliably prevent rewriting of a parameter having a high processing time that requires a processing time to set a parameter having a high priority.

In the second invention, when the parameter writing is instructed by the instructing means, the parameter writing state of the parameter storing area of the first storing means and the reset of the priority determination data stored in the third storing means are reset. With reference to the level, the parameter updating means updates the new parameter instructed to be written in the empty area of the parameter storage area secured by deleting any of the parameters stored in the first storage means. By registering, it is possible to surely prevent rewriting of a parameter having a high priority which has already been written and which requires the internal reset process.

In the third aspect of the invention, the parameter updating means updates and registers a new parameter instructed to be written in an empty area of the parameter storage area secured by erasing any of the parameters stored in the first storage means. When sending, the sending means sends one of the parameters stored in the parameter storage area to be deleted to the host computer as the status, and it becomes possible for the host side to save the information that no longer exists as the default value. .

In the fourth invention, the instructing means analyzes the command from the host computer to instruct to write the parameter in the first storage means, and rewrites the parameter in the first storage means from the host computer. Allows easy instruction.

In the fifth invention, the parameter updating means sequentially updates the priority judgment table stored in the third storage means when the new parameter is registered in the first storage means, and the first parameter is updated. When the rewriting of each parameter in the storage means is executed and the next parameter rewriting is instructed, the priority of each parameter is managed so that the optimum parameter candidate that may be deleted from the first storage means can be selected. To do.

According to the sixth aspect of the present invention, the parameter writing state in the parameter storage area of the non-volatile memory and the processing time in the priority determination data stored in the third storage means are specified when the parameter writing is instructed by the instructing means. With reference to the parameter updating means, any of the low-priority parameters stored in the non-volatile memory is erased, and the new parameter instructed to be written is updated and registered in the empty area of the parameter storage area that is secured, and the priority is given. It is possible to reliably prevent rewriting of a parameter that requires a processing time for setting a highly written parameter that has already been written.

In the seventh aspect of the invention, it is possible to reliably prevent the rewriting of a parameter which requires a processing time for setting the parameter corresponding to the allocation condition for the memory resource of the printing apparatus main body.

In the eighth aspect of the invention, it is possible to reliably prevent rewriting of a parameter that requires a processing time for setting a parameter corresponding to a data processing condition for a print mode that can be set in the printing apparatus main body.

In the ninth invention, when the parameter writing is instructed by the instructing means, the parameter writing state of the parameter storing area of the first storing means and the processing time in the priority discriminating data stored in the third storing means. And updating the new parameter instructed to be written in the empty area of the parameter storage area secured by deleting any low-priority parameter stored in the first storage means by the parameter updating means. By registering, it is possible to surely prevent a parameter requiring a processing time from being rewritten in the parameter setting which has been written with high priority in each printing apparatus.

According to a tenth aspect of the present invention, when the parameter writing is instructed by the instructing means, the parameter writing state in the parameter storage area of the first storing means and the third state are set.
The reset level in the priority determination data stored in the storage means of the parameter storage area of the parameter storage area that is secured by deleting the parameter stored in the first storage means by the parameter updating means. The new parameter instructed to be written in the empty area is updated and registered, and it is surely prevented that the high-priority already written parameter requiring the internal reset process is rewritten in each printing apparatus.

In the eleventh aspect, when the instructing means instructs the parameter writing corresponding to the processing time required to set the print processing condition, the parameter writing state in the parameter storage area of the first storing means is changed. With reference to the priority determination data stored in the third storage means, it is instructed to write in a free space of the parameter storage area secured by deleting any of the parameters stored in the first storage means. By newly registering a new parameter, it is possible to programmatically execute control that reliably prevents a parameter requiring a processing time from being rewritten in a parameter setting that has been written with high priority in each printing apparatus.

In the twelfth aspect of the invention, when the instructing means issues an instruction to write a parameter in which a different reset processing level is set, the parameter writing state of the parameter storage area of the first storing means and the third storing means. By referring to the priority determination data stored in the first storage means, any one of the parameters stored in the first storage means is erased, and a new parameter instructed to be written is updated and registered in the free space of the parameter storage area secured. In this way, it is possible to execute programmable control for surely preventing rewriting of a parameter having a high priority and a different reset processing level that has already been set in each printing device.

[0029]

【Example】

[First Embodiment] FIG. 1 is a block diagram for explaining the arrangement of a printing apparatus according to the first embodiment of the present invention.

In the figure, reference numeral 1 is a host computer for transmitting print data and the like. Reference numeral 2 is the printing apparatus, and reference numeral 21 is an interface (I / F) unit for receiving data from the host computer 1. Reference numeral 22 denotes a control unit that controls the entire printing apparatus, and includes a CPU 22a and a ROM that stores processing programs, font outline data, and the like.
22b and a RAM 22c used as a work area of the CPU 22a and a frame buffer for developing a reception buffer and a dot image.

Reference numeral 23 is a non-volatile memory (NVRAM) for storing default values of various parameters, and various setting parameters to be registered such as a print mode of the printing device and a paint mode indicating a frame buffer format. Store. Reference numeral 24 is a processing time table in which processing times required when setting each parameter are registered.

The pattern developed in the frame buffer in the RAM 22c is printed out by the dot printer engine unit 25 such as an ink jet or laser beam printer.

An outline of the operation of this embodiment having the above configuration will be described.

In this embodiment, the data output from the host computer 1 is sequentially stored in the reception buffer in the RAM 22c, and the unprocessed data in the reception buffer is read out sequentially as character data. The corresponding font pattern is expanded in the frame buffer in the RAM 22c and transferred to the dot printer engine unit 25 for print processing.

At this time, information such as what printing mode is used for printing or how to secure the frame buffer is stored in the non-volatile memory 23, and when the power is turned on, The print mode and memory allocation are determined according to the set value at the time of internal reset, and the print processing is performed. However, when these parameters are dynamically stored in the non-volatile memory 23, the non-volatile Since the memory 23 has a finite capacity, it is inevitably in a full state.

In this state, when the storage designation of the parameter in the non-volatile memory 23 is performed, the processing time for the parameter setting is long, that is, the non-volatile memory 23.
By registering in, and prioritizing storage of items that are supposed to reduce the time required for normal data processing by processing them when the power is turned on, etc. It becomes possible to use the non-volatile memory 23.

FIG. 2 shows a method of storing each parameter in the non-volatile memory 23 at this time.

FIG. 2 shows the nonvolatile memory 23 shown in FIG.
It is a figure explaining the data structure of. In the figure, 23
.. 23J are item storage areas, each of which comprises a parameter number and a data area.

FIG. 3 is a diagram showing an example of the processing time table stored in the processing time table shown in FIG. 1, and shows the case where the parameter numbers “2”, “4” and “99” are long in processing time. .

As shown in this figure, the processing time table used to determine the processing time stores the parameter number indicating the storage status of each parameter in the non-volatile memory 23 and the processing time.

FIG. 4 is a diagram showing an example of a priority determination table showing the processing time for each item storage area shown in FIG. 2, (a) showing the contents of the non-volatile memory 23, and (b).
Indicates the processing time for each storage area number.

This priority determination table is created in the RAM 22c based on the contents of the nonvolatile memory 23 and the contents of the processing time table 24 when the power is turned on or reset, and thereafter, the parameter storage process is performed in the nonvolatile memory 23. It is updated at this time and is used for determining the storage priority in the nonvolatile memory 23 depending on the processing time.

Correspondence between the present embodiment and each means of the first, fourth, and eighth inventions and their operation will be described below with reference to FIGS.

A first aspect of the invention is to process print information received from the host computer 1 in a printing device 2 that receives print information from the host computer 1, analyzes the received print information, and prints on a recording medium. First storage means (nonvolatile memory 23) for storing various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for performing the operation in a parameter storage area having a predetermined storage capacity.
A second storage means (processing time table 24) for storing the processing time required for setting the print processing conditions according to the respective parameters stored in the first storage means, and the first storage means. Instructing means (instruction panel not shown) for instructing writing of parameters to the storage means
And a priority determination table for determining the priority of rewritable parameters from each parameter in the parameter storage area of the first storage means and the processing time of each parameter stored in the second storage means. A third storage unit (RAM 22c) for storing the parameter writing state of the parameter storage area of the first storage unit and the priority determination data stored in the third storage unit when the parameter writing instruction is given by the instructing unit. And a parameter updating means (CPU 22a) for updating and registering a new parameter instructed to be written in a free area of a parameter storage area secured by erasing any of the parameters stored in the first storage means. Is provided, and the parameter storage area of the non-volatile memory 23 is displayed when the parameter writing is instructed from the operation panel Parameter write state and RAM
22c, the processing time in the priority determination data is referred to, and the CPU 22a erases any low-priority parameter stored in the non-volatile memory 23 to secure a free space in the parameter storage area. The new parameter instructed to be written is updated and registered, and it is surely prevented that the parameter that requires a processing time is rewritten to the already written parameter setting having a high priority.

In a fourth aspect of the present invention, the CPU 22a is used as the instructing means, the command from the host computer 1 is analyzed to instruct the writing of parameters to the non-volatile memory 23, and the parameters are rewritten from the host computer 1 to the non-volatile memory 23. Can be easily instructed.

According to a fifth aspect of the invention, the CPU 22a, when the new parameter is registered in the non-volatile memory 23, stores in the RAM.
The priority determination table stored in the memory 22c may be sequentially updated, each parameter of the first storage unit may be rewritten, and when the next parameter rewriting is instructed, the priority determination table may be erased from the nonvolatile memory 23. The priority of each parameter is managed so that the optimum parameter candidate can be selected.

A sixth aspect of the invention is an instruction means (operation panel or the like).
Non-volatile memory 2 when parameter writing is instructed by
Parameter writing status of parameter storage area of 3 and R
An empty area of the parameter storage area that is secured by erasing any low-priority parameter stored in the non-volatile memory 23 by the CPU 22a with reference to the processing time in the priority determination data stored in the AM 22c. The new parameter instructed to be written is updated and registered, and it is surely prevented that the parameter that requires a processing time is rewritten to the already written parameter setting having a high priority.

A seventh aspect of the invention is that a parameter that requires a processing time is rewritten in the parameter setting corresponding to the allocation condition for the memory resource (including the RAM 22c or the like or the expanded memory card or memory board) of the printing apparatus main body. Surely prevent.

An eighth aspect of the invention is a parameter that requires processing time in accordance with data processing conditions for a print mode (halftone processing, paper feed destination, density, outline processing method, etc.) that can be set in the printer body. Be sure to prevent rewriting.

In order to realize the above processing, the CPU 22a of the control unit 22 of the embodiment performs the processing according to the program stored in the ROM 22b.

Hereinafter, with reference to the flow chart shown in FIG. 5, the process when the storage of the parameter in the non-volatile memory 23 shown in FIG. 1 is designated will be described.

FIG. 5 is a flow chart showing the first embodiment of the non-volatile memory rewriting method of the printing apparatus according to the present invention. Note that (1) to (8) indicate each step.

It is determined whether or not the parameter to be stored in step (1) already exists in the non-volatile memory 23. If it exists, the parameter storage area is selected in step (2) and the process proceeds to step (8).

On the other hand, if the parameter does not yet exist in step (1), it is determined in step (3) whether the parameter storage area (item storage area) of the non-volatile memory 23 is full. If it is not full, the next empty area is searched and selected in step (4). For example,
When other setting values are stored only in the parameter storage area 23A, the parameter storage area 23B is selected. Then, it progresses to step (8).

On the other hand, if it is determined in step (3) that it is in the full state, the RAM 22 in FIG. 4 is determined in step (5).
A storage area (a parameter storage area 23B as shown in the priority determination table of FIG. 4) that stores a parameter that requires the minimum processing time is selected from the in-c priority determination table.

After that, in step (6), the processing time of the parameter designated to be stored this time is set to the processing time table 24.
Take out more, compare with the processing time of the selected storage area,
If the processing time of the storage designation parameter is longer, it is determined that the rewriting is performed, and the RAM 22c is determined in step (7).
The priority determination table in the above is rewritten and the process proceeds to step (8).

On the other hand, in step (8), the designated parameter number and the parameter data are written in the selected storage area, and the process ends.

On the other hand, when the minimum processing time selected in step (6) is longer than the designated parameter, the storing process is not performed and the process is terminated. Hereinafter, this embodiment and the first
Correspondence with each means of the invention of 1 and its action are shown in FIG.
This will be described with reference to FIG. Although FIG. 1 shows the case where the host computer 1 and the printing apparatus 2 are connected via a predetermined interface, in the eleventh invention, the host computer 1 and the printing apparatus 2 are connected via a predetermined network. Take the case of connection. However, in FIG.
Needless to say, the method shown in FIG. 5 can be applied to the case where the host computer 1 and the printing device 2 are connected via a predetermined interface.

An eleventh aspect of the present invention receives print information from a plurality of host computers via a predetermined network,
Corresponding to the predetermined print processing conditions set in the printer main body necessary for processing the print information received from each host computer by connecting a plurality of printing devices that analyze the received print information and print on the recording medium A first storage unit (nonvolatile memory 23) for storing various parameters to be stored in a parameter storage area having a predetermined storage capacity, and a print processing condition according to each parameter stored in the first storage unit. Second storage means (processing time table 24) for storing the required processing time for each parameter, instructing means (operation panel or the like) for instructing writing of parameters to the first storage means, and first storage means Priority order of rewritable parameters based on each parameter in the parameter storage area and the processing time of each parameter stored in the second storage means In a memory resource management method of a printing system having a third storage unit (RAM 22c) for storing a priority determination table for determining the parameter determination area, the parameter storage area of the non-volatile memory 23 is stored when the parameter writing instruction is given by the instruction unit. A reference step of referring to the parameter writing state and the priority determination data stored in the third storage means (step (3) in FIG. 5,
(5), (6)) and a parameter updating step of updating and registering a new parameter instructed to be written in a free area of the parameter storage area secured by erasing any of the parameters stored in the non-volatile memory 23 ( By executing the step (7) in FIG. 5 and executing the control for surely preventing the rewriting of the parameter requiring the processing time for the parameter setting which has been written with high priority in each printing device. It is possible.

As described above, in the present embodiment, the necessity of storage in the non-volatile memory 23 is discriminated and preferentially registered by comparing the processing times required by setting the parameters. Thus, it becomes possible to preferentially continue to hold information that requires a required processing time on a printing apparatus having only the non-volatile memory 23 having a limited storage capacity, and as a result, print processing is efficiently performed. It becomes possible.

In the above embodiment, the case where the printing apparatus 2 and the host computer 1 can communicate with each other via a predetermined interface is taken as an example. However, the present invention uses a plurality of printing apparatuses and a plurality of printing apparatuses via a network (not shown). It is applicable to a printing system capable of communicating with a host computer. Therefore, the correspondence between the embodiment and each means of the ninth invention and the operation thereof will be described below.

A ninth aspect of the present invention receives print information from a plurality of host computers (not shown) via a predetermined network (such as Ethernet (trade name)), analyzes the received print information, and prints it on a recording medium. In a printing system configured by connecting a plurality of printing devices for printing, various parameters corresponding to predetermined print processing conditions set in the printing device main body necessary for processing print information received from each host computer are set. First storage means (nonvolatile memory 2) for storing in a parameter storage area having a predetermined storage capacity
3), second storage means (processing time table 24) for storing the processing time required to set the print processing conditions according to the parameters stored in the first storage means, for each parameter, and the second storage means. An instruction means (operation panel) for instructing the writing of parameters to the first storage means;
Storing a priority determination table for determining the priority of rewritable parameters from the parameters stored in the parameter storage area of the storage means and the processing time of the parameters stored in the second storage means. Of the storage means (RAM 22c) and the parameter writing state of the parameter storage area of the first storage means and the priority determination data stored in the third storage means at the time of the parameter writing instruction by the instruction means. And a parameter updating unit (CPU 22a) for updating and registering a new parameter instructed to be written in a free space of the parameter storage area secured by erasing any of the parameters stored in the first storage unit, When the parameter writing is instructed by the instructing means, the parameters of the parameter storage area of the non-volatile memory 23 are set. The CPU 22a erases one of the low-priority parameters stored in the non-volatile memory 23 by referring to the data writing state and the processing time in the priority determination data stored in the third storage means. By updating and registering new parameters instructed to be written in the free space of the reserved parameter storage area, it is ensured that the parameters that require processing time will be rewritten to the parameter settings that have already been written with high priority in each printing device. Prevent. [Second Embodiment] FIG. 6 is a block diagram showing the arrangement of a printing apparatus according to the second embodiment of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals.

In the figure, reference numeral 61 is a reset level table in which required reset levels are registered when setting each parameter. When a reboot is required, the level becomes "2" and an internal reset is required. If it is set, the level becomes “1”, and if there is no reset, the level becomes “0”.

In this embodiment, the data output from the host computer 1 is sequentially stored in the reception buffer in the RAM 22c, and the unprocessed data in the reception buffer is read out sequentially as character data. The corresponding font pattern is expanded in the frame buffer in the RAM 22c and transferred to the dot printer engine unit 25 for print processing.

At this time, information such as what printing mode is used for printing or how to secure the frame buffer is stored in the non-volatile memory 23 and is used when power is turned on. The print mode and memory allocation are determined according to the set value at the time of internal reset, and the print processing is performed. However, when these parameters are dynamically stored in the non-volatile memory 23, the non-volatile Since the storage capacity of the memory 23 is finite, the memory 23 inevitably becomes full.

In this state, if the storage of parameters in the non-volatile memory 23 is designated, an internal reset operation is required by the parameter setting, that is, if it is not registered in the non-volatile memory 23, the setting is performed. By preferentially storing those that are supposed to be erased, the finite non-volatile memory 23 can be used efficiently.

The method of storing each parameter in the non-volatile memory 23 at this time is the same as that in FIG. 2 of the first embodiment.

FIG. 7 is a diagram for explaining the data structure of the reset level table 61 shown in FIG. 6, which is composed of a parameter number and a reset level, and is used for determining the necessity of the internal reset process.

FIG. 8 is a diagram showing another example of the priority determination table showing the processing time for each item storage area shown in FIG. 2, in which (a) shows the contents in the non-volatile memory 23, and (b) shows )
Indicates the reset level for each storage area number.

This priority determination table is created in the RAM 22c according to the contents of the non-volatile memory 23 and the contents of the reset level table 61 when the power is turned on or reset.
The rest is updated when the process of storing the parameters in the non-volatile memory 23 is performed, and is used for determining the storage priority in the non-volatile memory 23 due to the necessity of resetting. Correspondence between the present embodiment and each means of the second invention and its operation will be described below with reference to FIGS. 6 to 8.

A second aspect of the present invention processes print information received from the host computer in a printing device 2 that receives print information from the host computer 1, analyzes the received print information, and prints on a recording medium. First storage means (nonvolatile memory 23) for storing various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for this purpose in a parameter storage area having a predetermined storage capacity.
And second storage means (reset level table 61) for storing the reset level required for setting each parameter stored in the first storage means for each parameter.
And an instruction means (operation panel or CPU 22 for instructing the writing of the parameter to the first storage means).
a) and a priority determination for determining the priority of rewritable parameters from the parameters stored in the parameter storage area of the first storage means and the reset levels of the parameters stored in the second storage means. A third storage unit (RAM 22c) for storing a table, and a parameter writing state of a parameter storage area of the first storage unit and a priority stored in the third storage unit when a parameter writing instruction is given by the instructing unit. Parameter update means for updating and registering a new parameter instructed to be written in a free area of a parameter storage area secured by erasing any of the parameters stored in the first storage means with reference to the determination data ( CPU 22a) is provided, and the parameter of the non-volatile memory 23 is set when the parameter writing is instructed by the instructing means. The parameter update means is stored in the non-volatile memory 23 with reference to the parameter writing state of the storage area and the reset level (see FIG. 8) in the priority determination data stored in the third storage means. By updating and registering a new parameter instructed to be written to the empty area of the parameter storage area secured by deleting that parameter, the parameter that requires the internal reset processing with a high priority is rewritten. Be sure to prevent being caught.

In order to realize the above processing, the CPU 22a of the control unit 22 of the embodiment performs the processing according to the program stored in the ROM 22b.

Hereinafter, the processing when the storage designation of the parameter in the non-volatile memory 23 is performed will be described with reference to the flowchart shown in FIG.

FIG. 9 is a flow chart showing a second embodiment of the non-volatile memory rewriting method of the printing apparatus according to the present invention. Note that (1) to (8) indicate each step.

It is determined whether or not the parameter to be stored in step (1) already exists in the non-volatile memory 23. If it exists, the parameter storage area is selected in step (2) and the process proceeds to step (8).

On the other hand, if the parameter does not yet exist in step (1), it is determined in step (3) whether the parameter storage area of the non-volatile memory 23 is full. If it is not full, the next empty area is searched and selected in step (4). For example, when other setting values are stored only in the parameter storage area 23A, the parameter storage area 23B is selected. Then, it progresses to step (8).

On the other hand, if it is determined in step (3) that it is in the full state, RAM 22 in FIG. 8 is determined in step (5).
A storage area (a data storage area 23B in this case) that stores a parameter that requires the minimum reset level is selected from the in-c priority determination table. After that, in step (6), the reset level required for the parameter designated to be stored this time is set to the reset level table 61.
Further, the reset levels of the selected storage areas are compared, and if the reset level of the storage designation parameter is higher, it is determined that rewriting is performed, and the priority determination table is rewritten in step (7) and the process proceeds to step (8). move on.

On the other hand, in step (8), the designated parameter number and the parameter data are written to the selected storage area, and the process is ended.

On the other hand, if the minimum reset level selected in step (6) is larger than the designated parameter, the storing process is not performed and the process ends.

As described above, in the present embodiment, the necessity of storage in the non-volatile memory 23 is determined by comparing the reset levels required by the setting of the parameters, and the priority is registered. Thus, it becomes possible to efficiently perform the printing process while holding the information required on the printing apparatus having only the non-volatile memory having the limited storage capacity. Correspondence between the present embodiment and each means of the twelfth invention and its action will be described below with reference to FIGS. 9 and 6. Although FIG. 1 shows the case where the host computer 1 and the printing apparatus 2 are connected via a predetermined interface, in the eleventh invention, the host computer 1 and the printing apparatus 2 are connected via a predetermined network. Take the case of connection. However, the above-mentioned FIG.
It goes without saying that the method shown in FIG. 9 can be applied to the case where the printer 2 and the printer 2 are connected via a predetermined interface.

A twelfth aspect of the invention is to receive print information from a plurality of host computers via a predetermined network,
Corresponding to the predetermined print processing conditions set in the printer main body necessary for processing the print information received from each host computer by connecting a plurality of printing devices that analyze the received print information and print on the recording medium First storage means (nonvolatile memory 23) for storing various parameters to be stored in a parameter storage area having a predetermined storage capacity, and reset processing required for setting each parameter stored in the first storage means. Second storage means (reset level table 61) for storing the level for each parameter, instruction means for instructing the writing of the parameter to the first storage means, and each in the parameter storage area of the first storage means The priority of rewritable parameters is determined from the parameters and the reset processing level of each parameter stored in the second storage means. In a memory resource management method of a printing system having a third storage unit (RAM 22c) for storing a priority determination table for saving, a parameter storage area of the first storage unit when a parameter writing instruction is given by the instruction unit. A reference step (steps (3), (5), and FIG. 6 in FIG. 6) for referring to the parameter writing state and the priority determination data stored in the third storage means.
(6)) and a parameter updating step of updating and registering a new parameter instructed to be written in an empty area of a parameter storage area secured by erasing any of the parameters stored in the first storage means (FIG. 9). Step (7))
By executing the above, it is possible to execute the control that surely prevents the rewriting of the parameter, which has been written and has a different reset processing level, which has a high priority, in each printing device.

In the above embodiment, the case where the printing apparatus 2 and the host computer 1 can communicate with each other via a predetermined interface has been described as an example, but the present invention has a plurality of printing apparatuses and a plurality of printing apparatuses via a network (not shown). It is applicable to a printing system capable of communicating with a host computer. Therefore, the correspondence between the embodiment and each means of the tenth invention and the operation thereof will be described below.

In a tenth aspect of the invention, print information is received from a plurality of host computers (not shown) via a predetermined network (Ethernet (trade name), etc.), and the received print information is analyzed and recorded on a recording medium. In a printing system configured by connecting a plurality of printing devices for printing, various parameters corresponding to predetermined print processing conditions set in the printing device main body necessary for processing print information received from each host computer are set. First storage means (nonvolatile memory 2) for storing in a parameter storage area having a predetermined storage capacity
3), second storage means (reset level table 61) for storing the reset processing level required for setting each parameter stored in the first storage means for each parameter, and the first storage means. Instructing means for instructing writing of parameters to the storage means, parameters rewritable from each parameter in the parameter storage area of the first storage means and the reset processing level of each parameter stored in the second storage means. Third storage means (RAM for storing a priority determination table for determining the priority order)
22c) and the parameter writing state in the parameter storage area of the first storage unit and the priority determination data stored in the third storage unit at the time of the parameter writing instruction by the instructing unit, Parameter updating means (C) for updating and registering a new parameter instructed to be written in an empty area of the parameter storage area secured by erasing any of the parameters stored in the first storage means.
PU22a) is provided, and the parameter writing state of the parameter storage area of the non-volatile memory 23 and the RAM when the parameter writing is instructed by the instruction unit (operation panel or the like).
With reference to the reset level in the priority determination data stored in 22c, the CPU 22a erases one of the parameters stored in the non-volatile memory 23 to instruct writing to a free space in the parameter storage area. The new parameters are updated and registered, and it is surely prevented that the parameters, which have already been written and have a high priority, which require the internal reset processing, are rewritten in each printing apparatus. [Third Embodiment] This embodiment can be effectively applied to the first and second embodiments, but an application example will be described by taking the first embodiment as an example.

Since the block diagram of the printing apparatus of the third embodiment is the same as that of FIG. 1, an outline of the operation of this embodiment in the configuration will be described.

In the present embodiment, the data output from the host computer 1 is sequentially stored in the reception buffer in the RAM 22c, and the unprocessed data in the reception buffer is sequentially read out together with it to obtain character data. The corresponding font pattern is expanded in the frame buffer in the RAM 22c and transferred to the dot printer engine unit 25 for print processing.

At this time, information such as what printing mode is used for printing or how to secure the frame buffer is stored in the non-volatile memory 23, and when the power is turned on, The print mode and memory allocation are determined according to the set value at the time of internal reset, and the print processing is performed. However, when these parameters are dynamically stored in the non-volatile memory 23, the non-volatile Since the memory 23 has a finite capacity, it is inevitably in a full state.

In this state, if storage of parameters in the non-volatile memory 23 is designated, the processing time for parameter setting is long, that is, the non-volatile memory 23.
By storing the data that is expected to reduce the time required for normal data processing, etc. by storing it in advance and processing it when the power is turned on, etc. It is possible to notify the host of parameter information that does not exist as a default value by using the non-volatile memory and transmitting the parameter that is erased from the non-volatile memory 23 at that time as the status to the host computer 1. Becomes

At this time, each parameter storage method of the non-volatile memory 23, an example of a processing time table used for processing time discrimination, each parameter storage state of the non-volatile memory 23 and an example of a priority determination table at that time, etc. Is the same as in FIGS. 2, 3 and 4. Hereinafter, the correspondence between the present embodiment and each means of the third invention and the operation thereof will be described.
In a third aspect of the invention, the parameter updating means (CPU 22a) is instructed to write in a free area of a parameter storage area secured by erasing any of the parameters stored in the first storage means (nonvolatile memory 23). When updating and registering a new parameter, the transmitting means (CPU 22a, interface unit 21, etc.) transmits one of the parameters stored in the parameter storage area to the host computer as a status and no longer exists as a default value. It is possible for the host to save the saved information.

In order to realize the above processing, the CPU 22a of the control unit 22 performs the processing according to the program stored in the ROM 22b.

Hereinafter, the processing when the storage of the parameter in the non-volatile memory 23 is designated will be described with reference to the flowchart shown in FIG.

In the present embodiment, it is assumed that the parameter storage designation is performed by a command from the host computer.

FIG. 10 is a flow chart showing a third embodiment of the non-volatile memory rewriting processing method of the printing apparatus according to the present invention. Note that (1) to (10) indicate each step.

It is determined whether the parameter to be stored in step (1) already exists in the non-volatile memory. If it exists, the parameter storage area is selected in step (2) and the process proceeds to step (8).

On the other hand, if the parameter does not yet exist in step (1), it is determined in step (3) whether the parameter storage area of the non-volatile memory 23 is full. If it is not full, the next empty area is searched and selected in step (4). For example, when other setting values are stored only in the parameter storage area 23A, the parameter storage area 23B is selected. Then, it progresses to step (8).

On the other hand, if it is determined in step (3) that the memory is in the full state, the RAM 22 in FIG.
A storage area (parameter storage area 23B in this case) that stores a parameter that requires the minimum processing time is selected from the in-c priority determination table. Then, in step (6), the processing time of the parameter for which storage is specified this time is retrieved from the processing time table 24, compared with the processing time of the selected storage area, and rewritten if the processing time of the storage specified parameter is longer. If it is determined to be performed, the priority determination table is rewritten in step (7), and then the area (parameter storage area 2) to be erased in step (8).
The parameter number “1” of 3B) and the parameter data par1 are transmitted to the host computer 1, and the process proceeds to step (10).

At step (10), the designated parameter number and the parameter data are written to the selected storage area, and the process is terminated. If the minimum processing time selected in Step (6) is longer than the specified parameter, the storage process is not performed, and the specified parameter number and parameter data that failed to be stored in Step (9) are sent to the host computer 1 as they are. Then, it ends as it is.

As described above, in the present embodiment, the parameters erased when the non-volatile memory 23 becomes full are transmitted to the host computer 1 so that the information which does not exist as the default value is stored in the host side. You can save it at.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. Further, it goes without saying that the present invention can be applied to the case where it is achieved by supplying a program to a system or an apparatus.

[0099]

As described above, the first aspect of the present invention
According to the invention, when the parameter writing is instructed by the instructing means, the parameter writing state of the parameter storage area of the first storing means and the processing time in the priority determination data stored in the third storing means are referred to. Since the parameter updating means deletes any of the low-priority parameters stored in the first storage means and updates and registers a new parameter instructed to be written in a free area of the parameter storage area secured, It is possible to reliably prevent rewriting of a parameter that requires a processing time for setting a parameter that has already been written with high frequency.

According to the second invention, when the parameter writing is instructed by the instructing means, the parameter writing state in the parameter storage area of the first storing means and the priority determination data stored in the third storing means are stored. With reference to the reset level, a new parameter instructed to be written to a free area of the parameter storage area secured by the parameter updating means deleting one of the parameters stored in the first storage means is set. Since update registration is performed, it is possible to reliably prevent rewriting of a parameter having a high priority, which has already been written and which requires the internal reset process.

According to the third aspect of the invention, the parameter updating means erases any of the parameters stored in the first storage means and updates the new parameter instructed to be written in the empty area of the parameter storage area secured. When registering,
Since the transmitting means transmits one of the parameters stored in the deleted parameter storage area to the host computer as a status, the information which does not exist as a default value can be saved on the host side.

According to the fourth invention, the instructing means analyzes the command from the host computer to instruct the writing of the parameter to the first storage means, so that the parameter rewriting from the host computer to the first storage means is performed. Can be easily instructed.

According to the fifth invention, the parameter updating means sequentially updates the priority judgment table stored in the third storage means when the new parameter is registered in the first storage means. When the rewriting of each parameter of the first storage unit is executed and the next parameter rewriting is instructed, the priority of each parameter is set so that the optimum parameter candidate that may be deleted from the first storage unit can be selected. Can be managed.

According to the sixth invention, when the parameter writing is instructed by the instructing means, the parameter writing state of the parameter storing area of the non-volatile memory and the processing time in the priority discriminating data stored in the third storing means are described. With reference to, the parameter updating means erases one of the low-priority parameters stored in the non-volatile memory and updates and registers the new parameter instructed to be written in the empty area of the parameter storage area secured. It is possible to reliably prevent rewriting of a parameter that requires a processing time for setting a parameter that has already been written and has a high priority.

According to the seventh invention, it is possible to reliably prevent the rewriting of the parameter which requires the processing time for the parameter setting corresponding to the allocation condition for the memory resource of the printing apparatus main body.

According to the eighth aspect, it is possible to reliably prevent the rewriting of a parameter which requires a processing time for the parameter setting according to the data processing condition for the print mode that can be set in the printing apparatus main body.

According to the ninth invention, when the parameter writing is instructed by the instructing means, the parameter writing state of the parameter storing area of the first storing means and the processing in the priority discriminating data stored in the third storing means are processed. With reference to the time, the parameter update means is instructed to write to the empty area of the parameter storage area secured by deleting any of the low priority parameters stored in the first storage means. Since the new parameter is updated and registered, it is possible to reliably prevent rewriting of a parameter that requires a processing time in the already written parameter setting of high priority in each printing apparatus.

According to the tenth aspect, when the parameter writing is instructed by the instructing means, the parameter writing state in the parameter storage area of the first storing means and the priority discriminating data stored in the third storing means are stored. With reference to the reset level, the parameter updating unit erases one of the parameters stored in the first storage unit and updates and registers a new parameter instructed to be written in an empty area of the parameter storage area secured. Therefore, it is possible to reliably prevent rewriting of a parameter having a high priority, which has already been written and which requires the internal reset process, in each printing apparatus.

According to the eleventh aspect, the parameter writing state of the parameter storage area of the first storage means is provided when the instruction means instructs the parameter writing corresponding to the processing time required to set the print processing condition. With reference to the priority determination data stored in the third storage means, any one of the parameters stored in the first storage means is erased, and a write instruction is given to a free area of the parameter storage area secured. Since the new parameter is updated and registered, it is possible to reliably prevent the program control from rewriting the parameter, which requires a processing time, for the parameter setting which has already been written and has a high priority in each printing apparatus.

According to the twelfth aspect of the invention, when the instructing means issues an instruction to write a parameter for which a different reset processing level is set, the parameter writing state of the parameter storing area of the first storing means and the third storing The priority determination data stored in the means is referred to, and a new parameter instructed to be written is updated and registered in an empty area of the parameter storage area secured by erasing any of the parameters stored in the first storage means. Therefore, it is possible to reliably prevent rewriting of a parameter having a different priority and written with a different reset processing level, which has a high priority, in each printing apparatus by the program control.

Therefore, important information required in a storage medium having a limited capacity is held, and information having a different priority or the like originally required according to a unique information writing process easily disappears. This brings about an effect that it is possible to surely prevent a decrease in print processing efficiency due to the occurrence of the above.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a configuration of a printing apparatus according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a data structure of the nonvolatile memory shown in FIG.

FIG. 3 is a diagram showing an example of a processing time table stored in the processing time table shown in FIG.

FIG. 4 is a diagram showing an example of a priority determination table showing a processing time for each item storage area shown in FIG.

FIG. 5 is a flowchart showing a first embodiment of a non-volatile memory rewriting processing method for a printing apparatus according to the present invention.

FIG. 6 is a block diagram showing a configuration of a printing apparatus showing a second embodiment of the present invention.

7 is a diagram illustrating a data structure of a reset level table shown in FIG.

8 is a diagram showing another example of a priority determination table showing the processing time for each item storage area shown in FIG.

FIG. 9 is a flowchart showing a second embodiment of the nonvolatile memory rewriting processing method of the printing apparatus according to the present invention.

FIG. 10 is a flowchart showing a third embodiment of the nonvolatile memory rewriting processing method of the printing apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Host computer 2 Printing device 21 Interface part 22 Control part 22a CPU 22b ROM 22a RAM 23 Nonvolatile memory 24 Processing time table 25 Dot printer engine part 61 Reset level table

Claims (12)

[Claims] 1. A printing apparatus that receives print information from a host computer, analyzes the received print information, and prints on a recording medium by a printing apparatus main body, in order to process the print information received from the host computer. First storage means for storing various parameters corresponding to predetermined print processing conditions set in the necessary printing apparatus main body in a parameter storage area having a predetermined storage capacity, and each parameter stored in the first storage means. Second storage means for storing the processing time required to set the print processing conditions according to the above, for each parameter, instructing means for instructing the writing of the parameters to the first storage means, and the parameters of the first storage means. Priority of rewritable parameters based on each parameter in the storage area and the processing time of each parameter stored in the second storage means Third storage means for storing a priority determination table for determining the rank, and a parameter writing state of the parameter storage area of the first storage means and the third storage means at the time of the parameter writing instruction by the instructing means. And updating the new parameter instructed to be written in the free space of the parameter storage area secured by erasing any of the parameters stored in the first storage means with reference to the priority determination data stored in A printing apparatus comprising a parameter updating unit for registering. 2. A printing apparatus that receives print information from a host computer, analyzes the received print information, and prints on a recording medium, the printing apparatus being necessary for processing the print information received from the host computer. Various parameters corresponding to predetermined print processing conditions set in the main body are stored in a parameter storage area having a predetermined storage capacity.
Storage means, second storage means for storing the reset level required for setting each parameter stored in the first storage means for each parameter, and writing the parameter to the first storage means. For determining the priority order of the rewritable parameters from the instruction means for instructing, and the reset level of each parameter in the parameter storage area of the first storage means and each parameter stored in the second storage means. Third storage means for storing a priority determination table, and a parameter write state of a parameter storage area of the first storage means and a priority stored in the third storage means when a parameter writing instruction is given by the instructing means. Parameter data which is secured by erasing any of the parameters stored in the first storage means with reference to the discrimination data. Printing apparatus characterized by comprising a parameter updating means for updating register a new parameter which is a write instruction to the free space region. 3. When the parameter updating means updates and registers a new parameter instructed to be written in a free area of a parameter storage area secured by erasing one of the parameters stored in the first storage means, the parameter is erased. 3. The printing apparatus according to claim 1, further comprising a transmission unit that transmits any of the parameters stored in the stored parameter storage area to the host computer as a status. 4. The printing apparatus according to claim 1, wherein the instructing unit analyzes the command from the host computer to instruct the writing of the parameter in the first storage unit. 5. The parameter updating means sequentially updates the priority determination table stored in the third storage means when a new parameter is registered in the first storage means. 2. The printing device according to 2. 6. The printing apparatus according to claim 1, wherein the first storage unit comprises a non-volatile memory. 7. The printing apparatus according to claim 1, wherein the print processing condition is an allocation condition for a memory resource of the printing apparatus main body. 8. The printing apparatus according to claim 1, wherein the printing processing condition is a data processing condition according to a printing mode that can be set in the printing apparatus main body. 9. A printing system configured by connecting a plurality of printing devices for receiving print information from a plurality of host computers via a predetermined network, analyzing the received print information, and printing on a recording medium. First storage means for storing various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for processing the print information received from the host computer in a parameter storage area having a predetermined storage capacity. And a processing time required to set a printing processing condition according to each parameter stored in the first storage means is stored for each parameter.
Storage means, instruction means for instructing writing of parameters to the first storage means, processing of each parameter in the parameter storage area of the first storage means and processing of each parameter stored in the second storage means. Third storage means for storing a priority determination table for determining the priority order of rewritable parameters based on time, and a parameter in the parameter storage area of the first storage means when a parameter writing instruction is given by the instructing means. An empty area of a parameter storage area that is secured by erasing any of the parameters stored in the first storage means with reference to the written state and the priority determination data stored in the third storage means. And a parameter updating unit for updating and registering a new parameter instructed to be written in each printer. System. 10. A printing system configured by connecting a plurality of printing devices that receive print information from a plurality of host computers via a predetermined network, analyze the received print information, and print on a recording medium. First storage means for storing various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for processing the print information received from the host computer in a parameter storage area having a predetermined storage capacity. And a second storage means for storing, for each parameter, a reset processing level required for setting each parameter stored in the first storage means, and an instruction to write the parameter to the first storage means. Instruction means, each parameter in the parameter storage area of the first storage means, and each parameter stored in the second storage means. Parameter storing table for determining the priority of rewritable parameters based on the reset level of the parameters, and parameter storage of the first storing means when a parameter writing instruction is given by the instructing means. A parameter storage area secured by erasing any of the parameters stored in the first storage means with reference to the parameter writing state of the area and the priority determination data stored in the third storage means. And a parameter updating unit for updating and registering a new parameter instructed to be written in the empty area of the printing system. 11. A plurality of printing apparatuses that receive print information from a plurality of host computers via a predetermined network, analyze the received print information and print on a recording medium, and receive the print information from each host computer. First storage means for storing various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for processing print information in a parameter storage area having a predetermined storage capacity;
Second storage means for storing, for each parameter, the processing time required to set the print processing condition according to each parameter stored in the first storage means, and an instruction to write the parameter to the first storage means Instruction means to
A priority determination table is stored for determining the priority of rewritable parameters from the parameters stored in the parameter storage area of the first storage means and the processing times of the parameters stored in the second storage means. In a memory resource management method of a printing system having a third storage means, when a parameter writing instruction is given by the instruction means,
A reference step of referring to the parameter writing state of the parameter storage area of the first storage means and the priority determination data stored in the third storage means, and one of the reference steps stored in the first storage means. And a parameter updating step of updating and registering a new parameter instructed to be written in a free area of a parameter storage area secured by erasing the parameter, and a memory resource management method for a printing system. 12. A printer, which receives print information from a plurality of host computers via a predetermined network, analyzes the received print information, and prints on a recording medium, receives the print information from each host computer. First storage means for storing various parameters corresponding to predetermined print processing conditions set in the printing apparatus main body necessary for processing print information in a parameter storage area having a predetermined storage capacity;
Second storage means for storing, for each parameter, the reset processing level required for setting each parameter stored in the first storage means, and an instruction for instructing the writing of the parameter to the first storage means. Means, and a priority determination for determining the priority of rewritable parameters based on each parameter in the parameter storage area of the first storage means and the reset processing level of each parameter stored in the second storage means. In a memory resource management method of a printing system having a third storage means for storing a table, the parameter writing state of the parameter storage area of the first storage means and the third storage when the parameter writing instruction by the instructing means A reference step of referring to the priority determination data stored in the means, and the reference step stored in the first storage means. Memory resource management method for a printing system characterized by comprising a parameter update step of updating register a new parameter which is a write instruction to the free space in the parameter storage area is secured by erasing the parameters Zureka.