JPH08192932A - Image output device and paper feeding destination selecting method thereof - Google Patents

Abstract

PURPOSE: To automatically make a paper feeding pedestal selectable appropriately, without the intervention of an operator, even when the paper feeding pedestal following selection information is not provided, by feeding a record medium from any paper feeding pedestal, which is different from a designated paper feeding pedestal, with selection information and change information referred. CONSTITUTION: Change information, for changing a paper feeding pedestal to an another paper feeding pedestal capable of supplying selection information, is set by an operation unit 5 in order to select a given paper feeding pedestal designated in inputted output information, and this set change information is memorized in a paper feeding pedestal selection parameter conversion table 4c. The selection information is changed by a CPU 2 so that paper feeding from any paper feedable pedestal, different from a designated paper feeding pedestal, can be performed with this memorized change information referred. Based on the changed selection information, any paper feeding pedestal is selected to feed a record medium. Consequently, a paper feeding pedestal can be automatically selected appropriately, without the intervention of an operator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention comprises a plurality of paper feed trays,
The present invention relates to an image output apparatus capable of selecting and feeding one of the paper feed trays based on the paper feed selection information in the input output information, and a paper feed source selection method of the image output apparatus.

[0002]

2. Description of the Related Art Conventionally, when print data is created for output to a plurality of image output devices in online output in a network environment or offline output using a magnetic tape, etc. Instead of individually creating print data, print data was created with a certain image output device in mind.

Therefore, with respect to the paper feed tray selection by the control command in the print data, the designation method is determined according to the paper feed tray configuration of the output device in mind.

[0004]

However, the above-mentioned conventional example has the following problems.

For example, in the case of an output device having three paper feed trays, it will be referred to as upper, middle, and lower trays. Separately, it is assumed that red paper is used for the upper feed tray, white paper (no holes) is used for the middle feed tray, and white paper is punched for the lower feed tray.

On the other hand, it is preferable that the other image output devices also have three paper feed trays, but if there are only two paper feed trays,
When interpreting a control command for selecting the paper feed tray in the print data, the specification was treated as a parameter error. In this case, the operator skips the error, for example, but if the paper feed tray selected in this case has the same paper name or the same paper size, the operator has selected that paper feed tray, so that the original paper is output on another paper. However, there is a problem in that the paper is output on a different sheet, and the operator has to appropriately change the sheet on the sheet feed tray to a desired sheet when the error occurs.

Further, the image output device having only two paper feed trays, for example, the image data output device for feeding the upper paper with red paper and the lower paper with white paper is used. Print data created with this in mind. Is sent to an image output device having three paper feed trays, conversely, a new method of handling selection designations of upper and lower paper feed tray selections corresponding to image output devices having only two trays is newly added. There will be problems.

The present invention has been made to solve the above problems, and an object of the first to ninth inventions of the present invention is to select one of the paper feed trays in the output information. By previously storing change information for selecting a paper feed tray different from the selection information for making a change, and referring to the selection information and the change information, the recording medium is fed from one of the paper feed trays. Even if a paper feed tray according to the selection information is not provided, the paper feed tray of the image output apparatus and the paper feed of the image output apparatus can be automatically selected so that the paper feed tray can be automatically selected appropriately without operator intervention. The purpose is to provide a preselection method.

[0009]

According to a first aspect of the present invention, in an image output apparatus having a plurality of paper feed trays, a predetermined paper feed tray specified in input output information is selected. Setting means for setting change information for changing the selection information to a different paper feed table capable of feeding, storage means for storing the change information set by the setting means, and the storage means stored in the storage means A changing unit that changes the selection information so that the paper is fed from any one of the paper feed trays that can be fed different from the paper feed tray designated by referring to the change information, and the change means A feeding control unit that feeds a recording medium by selecting one of the paper feed trays based on the selection information is provided.

According to a second aspect of the present invention, in an image output apparatus having a plurality of paper feed trays, selection information can be fed in order to select a predetermined paper feed tray specified in input output information. Setting means for setting change information for changing to a different paper feed tray, storage means for storing the change information set by the setting means, and selecting a paper feed tray specified in the input and output information Determining means for determining whether or not change information corresponding to selection information for performing registration is registered in the storage means, and when the determining means determines that change information based on the selection information is not registered, An alternative feed control unit is provided which invalidates the selection information in the output information and substitutes the recording medium from any of the paper feed trays that are currently selected to be able to feed paper.

A third aspect of the present invention is such that each paper feed tray can feed paper from a paper feed means that accommodates recording media of the same size and different types.

According to a fourth aspect of the present invention, the selection information is
This is a selection parameter assigned to each paper feed tray.

According to a fifth aspect of the present invention, the selection information is
The selection parameters assigned to each paper feed tray and the paper name data fed from each paper feed tray.

According to a sixth aspect of the present invention, the storage means is
The change information set by the setting means can be freely rewritten.

According to a seventh aspect of the present invention, the storage means is
It is a non-volatile memory medium.

An eighth invention according to the present invention is for selecting a predetermined paper feed tray specified in input output information in a paper feed source selecting method for an image output apparatus having a plurality of paper feed trays. A setting step of setting change information for changing the selection information to a different paper feed tray capable of feeding, a registration step of registering the set change information in a storage medium, and a step of registering the registered change information. The changing step of changing the selection information so that the paper is fed from any one of the paper feed trays that can be fed different from the paper feed tray designated by reference, and the changing step based on the changed selection information. And a feeding step for feeding the recording medium by selecting one of the paper feed trays.

A ninth aspect of the present invention is for selecting a predetermined paper feed tray specified in input output information in a paper feed source selecting method for an image output apparatus having a plurality of paper feed trays. A setting step of setting change information for changing the selection information to a different paper tray that can be fed, a registration step of registering the set change information in a storage medium, and a designation step in input and output information. A determination step of determining whether or not change information corresponding to selection information for selecting a sheet feeding table to be registered in the storage means, and invalidating the change information registered in the storage medium by the determination, And a substitute feeding process for feeding the recording medium from any one of the paper feed trays selected to be able to feed paper.

[0018]

In the first aspect of the invention, the change information stored in the storage means is changed so that the sheet is fed from any one of the paper feed trays that can be fed different from the designated paper feed tray. Even if the output device changes the selection information in the output information and does not include the paper feed tray corresponding to the specified selection information, the output information is not interrupted by any one of the paper feed trays without interrupting the processing of the output information. It is possible to automatically switch to paper feeding from.

In the second aspect of the invention, the selection means for determining whether or not the change information corresponding to the selection information for selecting the paper feed tray designated in the input and output information is registered in the storage means. If it is determined that the change information corresponding to the information is not registered, the selection information in the output information is invalidated without waiting for the user's paper feed selection instruction, and the current output information is not interrupted. It is possible to automatically switch to paper feeding from one of the paper feed trays selected to be able to feed paper and continue the image output processing.

In the third aspect of the invention, each of the paper feed trays can feed paper from a paper feed means that accommodates recording media of the same size and different types, and from the paper feed tray that matches the selection information. It is possible to feed a desired recording medium for each usage type, and feed the recording medium from the paper feeding table changed based on the selection information and the change information.

In the fourth invention, it is possible to select each paper feed tray by referring to the selection information which is the selection parameter assigned to each paper feed tray.

In the fifth invention, each paper feed tray can be selected by referring to the selection parameter assigned to each paper feed tray and the selection information as the paper name data fed from each paper feed tray. And

In the sixth invention, the change information set by the setting means is freely rewritten and the desired change information is stored in the storage means, and the set change information once set is rewritten to the desired change information intended by the user. It is possible.

In the seventh aspect of the invention, the storage means is composed of a non-volatile memory medium, and it is possible to store and manage the change information set by the user with good reproducibility.

In the eighth invention, in order to select a predetermined paper feed tray designated in the input output information, change information for changing the selection information to a different paper feed tray capable of feeding paper is set, Registering the set change information in a storage medium,
By referring to the registered change information, the selection information is automatically changed so that the paper is fed from one of the paper feed trays that is different from the paper feed tray specified by the user, A process for feeding a recording medium from one of the changed and assigned paper feed trays and continuing the image output processing can be executed in a programmable manner without waiting for a paper feed tray selection instruction.

In a ninth aspect of the present invention, in a method for selecting a paper feed source of an image output apparatus having a plurality of paper feed trays, selection information is supplied to select a predetermined paper feed tray specified in the input output information. Selection for setting change information for changing to a different paper feed tray capable of making paper, registering the set change information in a storage medium, and selecting a paper feed tray specified in input and output information If it is determined that the change information corresponding to the information is not registered, the selection information in the output information is invalidated without waiting for the user's sheet selection instruction, It is possible to programmatically execute a process of alternately feeding a recording medium from the paper feeding table and continuing the image output process.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An image output device according to an embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing the control arrangement of an image output apparatus showing an embodiment of the present invention.

In the figure, reference numeral 1 denotes an image output apparatus main body of this embodiment, which includes the following components. Reference numeral 2 denotes a CPU, which is, for example, a microcomputer, and controls the entire operation of this embodiment via the CPU bus 2a in accordance with a program stored in the ROM 3 or the like. A RAM 4 is used as a work area for the CPU 2. The RAM 4 includes therein an input buffer 4a for temporarily storing print input data read from the communication control device 6, a page buffer 4b for storing print data page by page, and a conversion table of parameters specified by a paper feed tray selection command. 4c is included.

Correspondence between the present embodiment and each means of the first to seventh inventions and their functions will be described with reference to FIG.

The first invention is an image output apparatus having a plurality of paper feed trays (see (a) and (b) of FIG. 2).
Setting means (operation unit 5) for setting change information for changing the selection information to a different paper tray capable of feeding in order to select a predetermined paper tray specified in the input output information
And storage means for storing the change information set by the setting means (paper feed tray selection parameter conversion table 4
c) and the selection information is changed so that the paper is fed from one of the paper feed trays that is different from the paper feed tray specified by referring to the change information stored in the storage means. Changing means (CPU 2) and a feeding control means (CPU 2 that feeds a recording medium by selecting one of the paper feed trays based on the selection information changed by the changing means). Control) and the CPU 2 refers to the change information stored in the paper feed tray selection parameter conversion table 4c to feed paper from one of the paper feed trays that is different from the designated paper feed tray. Even if the output device does not have a paper feed tray corresponding to the specified selection information, the selection information in the output information is changed so that it becomes paper, and any one of the output information is not interrupted. Automatically switch to paper feeding from the paper tray And ability.

In a second aspect of the invention, in an image output apparatus having a plurality of paper feed trays, different paper feeds capable of feeding selection information for selecting a predetermined paper feed tray specified in input output information. Setting means (operation unit 5) for setting change information for changing to a table, and storage means (paper feed table selection parameter conversion table 4c) for storing the change information set by the setting means are input and output. A determination unit (by the CPU 2) that determines whether or not the change information corresponding to the selection information for selecting the paper feed tray specified in the information is registered in the storage unit, and this determination unit is the selection information. When it is determined that the change information based on the output information is not registered, the selection information in the output information is invalidated, and the recording medium is replaced by any one of the paper feed trays that are currently selected to be able to feed paper. Alternate feeding control means (the CPU 2 controls the feeding drive system) is provided, and the change information corresponding to the selection information for selecting the paper feed tray specified in the output information is registered in the storage means. If the determining unit that determines whether or not the change information corresponding to the selection information is not registered, the selection information in the output information is invalidated without waiting for the user's sheet selection instruction. It is possible to continue the image output processing without interrupting the processing of the output information by automatically switching to the paper feeding from any one of the paper feeding trays which are currently selected to be able to feed the paper.

According to a third aspect of the present invention, each paper feed tray is capable of feeding paper from a paper feed means that accommodates recording media of the same size and different types, and from the paper feed tray that matches the selection information. It is possible to feed a desired recording medium for each usage type, and feed the recording medium from the paper feeding table changed based on the selection information and the change information.

The fourth aspect of the present invention makes it possible to select each paper feed tray with reference to the selection information which is a selection parameter assigned to each paper feed tray.

The fifth aspect of the present invention makes it possible to select each paper feed tray by referring to the selection parameter assigned to each paper feed tray and the selection information used as the paper name data stored in each paper feed tray. To do.

According to a sixth aspect of the invention, desired change information in which the change information set by the setting means (operation unit 5) is freely rewritten is stored in the storage means (paper feed tray selection parameter conversion table 4c), and once changed. The set change information can be rewritten into desired change information intended by the user.

The seventh aspect of the invention makes it possible to store the change information set by the user with good reproducibility by configuring the storage means (paper feed tray selection parameter conversion table 4c) with a non-volatile memory medium.

FIG. 2 is a schematic view for explaining the structure of paper feed and paper discharge of the image output apparatus according to the present invention.

(A) of this figure corresponds to the output device A in which a total of three paper feed trays C1 to C3 are mounted, and the paper feed trays C1 to C3 are shown.
As an example of the operation mode, it is assumed that red paper is set in the upper stage, white paper without holes in the interruption, and blank paper with holes in the lower stage.

On the other hand, FIG. 9B shows the paper feed tray CC1,
Corresponding to a total of two output devices B of CC2, it is assumed that two paper feed trays are installed in the output device B with respect to the output device A. Red paper is set on the paper feed table CC1 of No. 2 and white paper without holes is set on the lower paper feed table CC2.

As described above, for example, the print data created with the output device A in mind may have the middle stage designated as the paper feed tray selection designation. When such print data is also transmitted to the output device B, how the output device B processes it will be described with reference to FIG.

FIG. 3 is a diagram for explaining the configuration of the paper feed tray selection parameters shown in FIG. 2, and corresponds to the description of the parameter value setting example of the paper feed tray selection control command.

(A) of this figure shows the parameter specified values in the output device A shown in FIG. Values 1 to 3 are assigned to the upper, middle, and lower paper feed trays.

2B is an example of parameter value setting in the output device B shown in FIG. 2, and FIG.
2 paper feed trays (paper feed trays CC1, CC2)
Since there is only one, the upper and lower paper feed trays are assigned to "1" and "2" as the parameter values in the command.

As shown in FIGS. 3A and 3B, the parameter value 9 can be set as the automatic switching mode, and when the parameter value 9 is set,
This means automatically switching the currently selected paper feed tray to another paper feed tray when there is no paper in the currently selected paper feed tray.

FIG. 4 is a diagram showing an example of the conversion table 4c of the paper feed tray selection parameters of the RAM 4 shown in FIG.

The item "input parameter value" represents the parameter value when a paper feed tray selection command is specified in the input print data.

The item "corresponding parameter value" is a parameter value for replacing the above-mentioned input parameter value.

Here, if the lower feed tray C3 is designated by the input data, it will be "3" when looking at (a) of FIG. Looking at FIG. 4 based on this, when the input parameter is “3”, the corresponding parameter is “2”.

Next, the processing operation in this embodiment will be described with reference to the flow chart of FIG. Note that FIG.
The program that realizes the flowchart shown in (1) is stored in the ROM 3 as described above.

FIG. 5 is a flow chart showing an embodiment of the method for selecting the paper feed source of the image output apparatus according to the present invention. Note that (1) to (11) indicate each step.

First, in step (1), the input data fetched from the communication control device 6 is temporarily stored in the input buffer 4a. In step (2), the content of the input buffer 4a fetched in step (1) is analyzed.

Next, in step (3), it is judged whether or not the control command under analysis is found. If it is judged not to be the control command, the process proceeds to step (4), where necessary processing as print data is performed, and step At (5), the result is written in the page buffer 4b. After that, the process returns to step (1).

On the other hand, when it is determined in step (3) that the control command is detected, the process proceeds to step (6), it is determined whether or not it is the paper feed tray selection command, and if it is not the paper feed tray selection command. If so, the process proceeds to step (7), the process corresponding to the designated control command is performed, and the process returns to step (1).

On the other hand, if it is determined in step (6) that the instruction is a paper feed tray selection command, the paper feed tray selection parameter value is fetched in step (8), and the paper feed tray selection parameter is converted in step (9). The table 4c is used to newly select a paper feed tray, and the processing required for selection is performed. Then, the CPU 2 selects a sheet feeding means based on the conversion information (10), and controls a sheet feeding drive system (not shown) to feed the recording medium from the selected sheet feeding tray (11), step (11). Return to 1).

In the above embodiment, the case where the constitution of the paper feed tray is different has been described as an example, but when the print data is created, the assumed output device and the paper feed tray constitution of the output device on the receiving side are the same. You may be doing it.

For example, even in an output device having three paper feed trays, it is naturally conceivable that the sheets set in the upper, middle, and lower stages will differ depending on the individual operation. In the above-described embodiment, the description has been made only for the paper feed tray selection parameter by the control command in the print data, but since the selection by the paper name can be considered in addition to the paper feed tray selection command, it is also combined. By performing the above processing, it is possible to provide an image output device that is even more convenient. In this case, it is necessary to control which of the paper feed tray and the paper name selection should be prioritized for processing, and the user may switch and set the priority order.

Further, in the above embodiment, the case where the paper feed tray selection parameter conversion table used (example of FIG. 4) corresponds to the inputted paper feed tray parameters by one to one without fail Although explained, it is not always necessary to be one-to-one.

For example, for some input parameter values, the corresponding value may not be designated, but the parameter designation may be ignored. In this case, the designated paper feed tray selection command itself is also ignored as a result. With this method, if there is a paper tray selection parameter that you want to ignore or treat as a non-target,
By setting it in advance, it is possible to handle it as if it had not been designated. With this method, it is possible to execute the paper feed control by ignoring the extra paper feed tray selection command and using the currently selected paper feed tray as it is.

The operation of the paper feed tray of each output device is as follows.
It is quite possible that it will change frequently.

Therefore, for example, when the paper feed table is of a cassette type, there is a possibility that it may be freely inserted and removed.
In such a case, it is meaningless that the setting value of the paper feed table parameter conversion table is fixed, so the setting method is as follows.
For example, it may be configured such that the settings can be changed using a console or a panel, or settings can be made in an initialization file or the like.

Correspondence between the present embodiment and the respective steps of the eighth and ninth inventions and their functions will be described below with reference to FIG.

An eighth aspect of the present invention is a method for selecting a paper feed source of an image output apparatus having a plurality of paper feed trays, wherein selection information is supplied to select a predetermined paper feed tray specified in the input output information. A setting step of setting change information for changing to a different paper feed table capable of paper (setting by a command from the operation unit 5 or a host computer not shown in the step (1) in FIG. 5), and the setting A registration step of registering the changed information thus created in the storage medium (change information set by a command from the operation unit 5 or a host computer (not shown) in a step (1) in FIG. (Registered in the conversion table 4c), and from any paper feed tray capable of feeding different paper from the paper feed tray designated by referring to the registered change information. A changing step (step (9) in FIG. 5) of changing the selection information so that the recording medium is fed, and one of the paper feed trays is selected based on the changed selection information to feed the recording medium. Feeding process (Step (1 in FIG. 5
0) and (11)) are executed, and the recording medium is fed from any one of the changed and assigned paper feed trays and the image output process is continued without waiting for the user to input the paper feed tray selection instruction. The processing can be executed in a programmable manner.

A ninth aspect of the present invention is a method of selecting a paper feed source of an image output apparatus having a plurality of paper feed trays, wherein selection information is supplied to select a predetermined paper feed tray specified in the input output information. A setting step of setting change information for changing to a different paper feed table capable of paper (setting by a command from the operation unit 5 or a host computer not shown in the step (1) in FIG. 5), and the setting A registration step of registering the changed information thus created in the storage medium (change information set by a command from the operation unit 5 or a host computer (not shown) in a step (1) in FIG. (Registered in the conversion table 4c) and the change information corresponding to the selection information for selecting the paper feed tray specified in the input information output. And a change step registered in the storage medium by the determination step (a step (not shown) executed between step (8) and step (9) in FIG. 5) for determining whether the change information is registered in the storage medium. Is set to be invalid, and an alternative feeding process (not shown in place of step (10) in FIG. 5 and step (11) performed to substitute-feed the recording medium from any one of the paper feed trays currently selected to be paper-feedable) )) Is executed to make it possible to programmatically execute a process of substituting a recording medium from one of the paper feed trays selected to be able to feed paper and continuing the image output process.

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.

[0066]

As described above, the first aspect of the present invention
According to another aspect of the invention, the changing means outputs so that the paper is fed from any one of the paper feed trays that can be fed different from the paper feed tray specified by referring to the change information stored in the storage means. Since the selection information in the information is changed, even if the output device does not have the paper feed tray corresponding to the specified selection information, the output information can be output from any paper feed tray without interruption. You can automatically switch to paper feeding.

According to the second aspect of the present invention, the determination means determines whether or not the change information corresponding to the selection information for selecting the paper feed tray designated in the input and output information is registered in the storage means. If it is determined that the change information corresponding to the selection information is not registered, the selection information in the output information is invalidated without waiting for the user's paper feed selection instruction, so the output information processing is interrupted. It is possible to continue the image output processing by automatically switching to the paper feeding from any one of the paper feeding trays which are currently selected to be able to feed the paper.

According to the third aspect of the invention, since the respective paper feed trays can feed paper from the paper feed means which accommodates recording media of the same size and different types, it matches the selection information. A desired recording medium can be fed from the paper feed table for each usage type, and the recording medium can be fed from the paper feed table changed based on the selection information and the change information.

According to the fourth invention, each paper feed tray can be selected by referring to the selection information as the selection parameter assigned to each paper feed tray.

According to the fifth aspect of the invention, since the selection parameter assigned to each paper feed tray and the selection information to be the paper name data fed from each paper feed tray are referred to, each paper feed tray can be selected. You can

According to the sixth aspect of the invention, since the desired change information freely rewritten with the change information set by the setting means is stored in the storage means, the change information once set can be changed as desired by the user. Can be rewritten as information.

According to the seventh aspect of the present invention, the storage means is composed of the non-volatile memory medium, and the change information set by the user can be stored and managed with good reproducibility.

According to the eighth aspect of the present invention, the change information for changing the selection information to a different paper tray capable of feeding is set for selecting the predetermined paper tray specified in the input output information. And register the set change information in a storage medium,
By referring to the registered change information, the selection information is automatically changed so that the paper is fed from one of the paper feed trays that is different from the paper feed tray specified by the user, It is possible to programmatically execute the process of feeding the recording medium from any of the changed and assigned paper feed trays and continuing the image output processing without waiting for the paper feed tray selection instruction.

According to the ninth aspect of the invention, in the method for selecting the paper feed destination of the image output apparatus having a plurality of paper feed trays, the selection information for selecting a predetermined paper feed tray specified in the input output information. To set change information for changing a different paper feed tray capable of feeding paper, register the set change information in a storage medium, and select a paper feed tray specified in the input and output information. If it is determined that the change information corresponding to the selection information of No. is not registered, the selection information in the output information is invalidated and the sheet is currently selected to be paper-feedable without waiting for the user's paper-feeding selection instruction. It is possible to programmatically execute the process of substituting the recording medium from any one of the paper feed trays and continuing the image output process.

Therefore, even if the paper feed tray according to the selection information is not provided, the paper feed tray can be automatically selected appropriately without operator intervention, and the image output processing can be continuously performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a control configuration of an image output apparatus showing an embodiment of the present invention.

FIG. 2 is a schematic diagram illustrating the configuration of paper feed and paper discharge of the image output apparatus according to the present invention.

FIG. 3 is a diagram illustrating a configuration of a paper feed tray selection parameter illustrated in FIG.

FIG. 4 is a diagram showing an example of a conversion table of a paper feed tray selection parameter of the RAM shown in FIG.

FIG. 5 is a flowchart showing an embodiment of a paper feed source selection method of the image output apparatus according to the present invention.

[Explanation of symbols]

 1 Image Output Device Main Body 2 CPU 3 ROM 4 RAM 4a Input Buffer 4b Page Buffer 4c Paper Feeding Table Selection Parameter Conversion Table 5 Operation Unit

Claims (9)

[Claims] 1. In an image output device having a plurality of paper feed trays, the selection information is changed to a different paper feed tray capable of feeding in order to select a predetermined paper feed tray specified in the input output information. Setting means for setting change information for storing the change information, storage means for storing the change information set by the setting means, and a paper feed tray designated with reference to the change information stored in the storage means. A changing unit that changes the selection information so that the paper is fed from one of the paper feed trays that can feed different papers, and one of the paper feed trays is selected based on the selection information changed by the changing unit. An image output apparatus, comprising: a feeding control unit configured to feed a recording medium. 2. In an image output apparatus having a plurality of paper feed trays, the selection information is changed to a different paper feed tray capable of feeding in order to select a predetermined paper feed tray specified in the input output information. Corresponding to the setting means for setting change information for storing the change information, the storage means for storing the change information set by the setting means, and the selection information for selecting the paper feed tray specified in the input information. Judgment means for judging whether or not the change information is registered in the storage means, and when this judgment means judges that the change information based on the selection information is not registered, the selection information in the output information is invalidated. As an alternative, the image output apparatus is provided with an alternative feeding control unit that causes an alternative feeding of the recording medium from any one of the paper feed trays selected to be able to feed paper. 3. The image according to claim 1, wherein each of the paper feed trays is made to be able to feed paper from a paper feed means that accommodates recording media of the same size and different types. Output device. 4. The image output device according to claim 1, wherein the selection information is a selection parameter assigned to each paper feed tray. 5. The image according to claim 1, wherein the selection information is a selection parameter assigned to each paper feed tray and paper name data fed from each paper feed tray. Output device. 6. The image output device according to claim 1, wherein the storage means is capable of freely rewriting the change information set by the setting means. 7. The image output device according to claim 1, wherein the storage means is a non-volatile memory medium. 8. A method for selecting a paper feed source of an image output apparatus having a plurality of paper feed trays, wherein different selection information can be fed in order to select a predetermined paper feed tray specified in input output information. A setting step of setting change information for changing to a paper feed tray, a registration step of registering the set change information in a storage medium, and a paper feed specified with reference to the registered change information. A changing step of changing the selection information so that the paper is fed from one of the paper feed trays that can be fed differently from the table, and one of the paper feed trays is selected based on the changed selection information. And a feeding step of feeding the recording medium. 9. A method of selecting a paper feed source of an image output device having a plurality of paper feed trays, wherein different selection information can be fed in order to select a predetermined paper feed tray specified in input output information. A setting step of setting change information for changing the paper feed tray, a registration step of registering the set change information in a storage medium, and selecting a paper feed tray specified in the input and output information. Determination step for determining whether or not the change information corresponding to the selection information of No. 1 is registered in the storage unit, and the change information registered in the storage medium is invalidated by the determination, and the sheet is selected to be currently feedable. And a substitute feeding step of feeding the recording medium from any one of the paper feed trays.