JP2007187713A - Image forming apparatus and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of preventing an image from being formed on paper which is not intended by a user. <P>SOLUTION: The image forming apparatus is equipped with: a non-volatile memory 27 for storing user authentication information and paper set information of every user; a CPU 24 judging whether or not the user authentication information agrees with input user information and discriminating a paper tray group agreeing with the paper set information as a paper tray group which can be used by the user out of a large-capacity tray unit 3 constituted of paper trays 4a to 4e in which different kinds of paper are housed; an operation display part 17 displaying the paper tray group which can be used; a conveying means selecting the desired paper tray out of the paper tray group which can be used, successively feeding paper from the paper tray and conveying it to an ejection tray while following a conveyance path; and an image forming apparatus main body 2 forming the image on the paper based on input image data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an image forming apparatus and a program, and more particularly to an image forming apparatus and a program including a plurality of paper trays.

  2. Description of the Related Art Conventionally, there has been known an image forming apparatus in which a user can set paper conditions such as weight and process conditions such as front / back adjustment in advance according to the type of paper to be used. Such an image forming apparatus is provided with a plurality of paper trays, so that paper tray selection as a paper setting is performed in advance, and image recording can be performed under the best conditions.

  As described above, when a plurality of paper trays are provided, the user tray is unlocked or the paper tray is unlocked or the paper tray is set so as not to cause a problem that the type of paper set in the paper tray differs depending on the user. 2. Description of the Related Art An image forming apparatus that can change the type of paper that is being used is known (see Patent Document 1).

Further, in the case of an image forming apparatus having many functions such as a fax machine, a printer, a copy machine, and a scanner, user authentication is performed, and functions that can be used are restricted according to the user. In such an image forming apparatus, a technique is known in which user authentication processing is performed in a plurality of stages so that a registered user database and authentication processing do not interfere with image forming processing (Patent Document 2). reference).
JP 2005-178115 A Japanese Patent Application No. 2004-177053

  However, according to the conventional image forming apparatus, since a plurality of paper trays are provided, there is a possibility that an unintended paper tray may be erroneously selected when the user selects the paper tray. In addition, even if the paper tray is selected correctly, if there is no more paper in the selected paper tray, ATS / APS control automatically feeds paper from other paper trays and image formation continues on unintended paper. was there.

  SUMMARY An advantage of some aspects of the invention is that it provides an image forming apparatus capable of preventing image formation on a sheet not intended by a user.

In order to solve the above-mentioned problem, the invention according to claim 1 is an image forming apparatus comprising:
Storage means for storing user authentication information and paper setting information for each user;
Authentication means for determining whether or not the user authentication information matches the input user information;
A paper tray identification that identifies a paper tray group that matches the paper setting information as a paper tray group that can be used by the user from among a plurality of paper tray groups that contain different types of paper. Means,
Display means for displaying an identification result by the paper tray identifying means for each of the paper trays;
A paper tray selection means for selecting a desired paper tray from the usable paper tray group displayed by the display means;
A transport unit that sequentially feeds paper from the paper tray selected by the paper tray selection unit and transports the fed paper to a discharge tray according to a transport path;
Image forming means for forming an image on the supplied paper based on the input image data;
It is characterized by providing.

  According to the first aspect of the present invention, when user authentication information and paper setting information used for each user are stored in advance and user authentication is performed, the paper usable by the user according to the paper setting information for each user. The tray group is identified and displayed, and the user selects a desired paper tray from the usable paper tray group based on the display result. Then, the paper is sequentially fed from the selected paper tray, and image formation is performed.

The invention according to claim 2 is the invention according to claim 1,
The paper tray selection unit does not execute the image forming process by the image forming unit when there is no paper tray that matches the paper setting information.

  According to the second aspect of the present invention, when there is no sheet tray that matches the sheet setting information, the sheet tray selecting unit does not execute the subsequent image forming process.

The invention according to claim 3 is the invention according to claim 1 or 2,
The storage means may store process conditions dependent on each sheet that matches the sheet setting information.

  According to the third aspect of the present invention, each user stores in advance the process conditions depending on the paper that matches the paper setting information, so that a desired paper tray can be selected from the usable paper tray group. Then, image formation is performed under process conditions according to the paper provided in the paper tray.

The invention according to claim 4 is a program,
A computer that controls an image forming apparatus that forms an image on a predetermined sheet of paper,
A storage function for storing user authentication information and paper setting information for each user;
An authentication function for determining whether or not the user authentication information matches the input user information;
A paper tray identification that identifies a paper tray group that matches the paper setting information as a paper tray group that can be used by the user from among a plurality of paper tray groups that contain different types of paper. Function and
A display function for displaying an identification result by the paper tray identification function for each of the paper trays;
A paper tray selection function for selecting a desired paper tray from the usable paper tray group displayed by the display function;
A transport function that sequentially feeds paper from the paper tray selected by the paper tray selection function and transports the fed paper to a discharge tray according to a transport path;
An image forming function for forming an image on the supplied paper based on the input image data;
It is characterized by realizing.

  According to the invention described in claim 4, when user authentication information and paper setting information used for each user are stored in advance and user authentication is performed, the paper usable by the user according to the paper setting information for each user The tray group is identified and displayed, and the user selects a desired paper tray from the usable paper tray group based on the display result. Then, the paper is sequentially fed from the selected paper tray, and image formation is performed.

The invention according to claim 5 is the invention according to claim 4,
The paper tray selection function does not execute the image forming process by the image forming function when there is no paper tray that matches the paper setting information.

  According to the fifth aspect of the present invention, when there is no paper tray that matches the paper setting information, the subsequent image forming process is not executed by the paper tray selection function.

The invention according to claim 6 is the invention according to claim 4 or 5,
The storage function can store a process condition dependent on each sheet that matches the sheet setting information.

  According to the sixth aspect of the present invention, since each user stores in advance process conditions dependent on each sheet that matches the sheet setting information, a desired sheet tray is selected from the usable sheet tray group. Then, image formation is performed under process conditions according to the paper provided in the paper tray.

  According to the first and fourth aspects of the present invention, the sheet setting information for each user is stored in advance, so that it is possible to prevent image formation by selecting a sheet tray having sheets that do not match the sheet setting information. . That is, in an image forming apparatus including a plurality of paper trays, it is possible to reduce the possibility that the user erroneously selects a paper tray and causes image formation on an unintended paper.

  According to the second and fifth aspects of the present invention, when it is determined that a sheet tray matching the sheet setting information for each user stored in advance is not provided, the subsequent image forming process is not executed. Therefore, it is possible to effectively prevent image formation on a sheet not intended by the user.

  According to the third and sixth aspects of the present invention, the user can select the desired paper tray from the available paper tray group, and image formation is performed under the process conditions stored in advance. It is possible to save the user from having to input process conditions depending on each sheet.

  Hereinafter, an embodiment of an image forming apparatus according to the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

  As shown in FIG. 1, an image forming apparatus 1 according to this embodiment is an image forming apparatus main body 2 and a sheet tray group including sheet trays 4a to 4e that store a plurality of different types of sheets. And a large capacity tray unit 3.

  The image forming apparatus main body 2 includes paper feed rollers 5a to 5e that sequentially supply paper from the paper trays 4a to 4e. A registration roller 6 is provided downstream of the paper feed rollers 5a to 5e to guide the supplied paper to an image forming unit to be described later on the downstream side of the transport path (thick line in FIG. 1). Further, a discharge roller 8 that conveys the image-formed paper to the discharge tray 7 is provided downstream of the image forming unit. Here, the conveying means in the present embodiment includes at least paper feed rollers 5 a to 5 e, a registration roller 6, and a paper discharge roller 8. In addition, when performing duplex printing, it is good also as providing the conveyance path switching board 9 and the inversion part 10 etc. for inverting the paper on which the single side was printed.

  Above the registration roller 6, an LD (Laser Diode) 11 that irradiates a laser beam based on the input image data is provided. In the laser beam irradiation direction of the LD 11, a charger 12 that is charged based on the irradiated laser beam is provided. Below the charger 12, a photosensitive drum 13 on which an electrostatic latent image is formed by the charger 12 is provided. A developing device 14 is provided at a position facing the photosensitive drum 13 to attach toner according to the formed electrostatic latent image. Below the photosensitive drum 13, a transfer unit 15 that transfers toner from the photosensitive drum 13 to the conveyed paper is disposed so as to face the paper. A fixing unit 16 for fixing the toner transferred onto the paper is provided downstream of the photosensitive drum 13 in the conveyance path. Here, in the present embodiment, an image is formed on the fed paper based on the input image data by the LD 11, the charger 12, the photosensitive drum 13, the developing device 14, the transfer unit 15, and the fixing unit 16. An image forming unit is configured.

  An operation display unit 17 and an ADF (Auto Document Feeder) unit 18 described later are provided on the upper surface of the image forming apparatus main body 2.

  Next, the control configuration of the image forming apparatus 1 will be described. As shown in FIG. 2, a host device 20 that transmits and receives data is connected to the image forming apparatus 1 via a communication network N such as a LAN (Local Area Network) or a WAN (Wide Area Network).

  The host device 20 is a personal computer equipped with a printer driver corresponding to the image forming apparatus 1, application software for creating document data and image data, and the like, such as a CPU (Central Processing Unit), a storage unit, a keyboard, a mouse, and the like. An operation unit, a display unit such as an LCD (Liquid Crystal Display), a communication unit, and the like are provided.

  Further, the number of image forming apparatuses 1 and host devices 20 is not particularly limited. In the present embodiment, a configuration in which the image forming apparatus 1 and the host apparatus 20 are connected as an image forming system SY via a communication network N as a communication unit will be described as an example. For example, a USB (Universal Serial Bus) is used. Alternatively, it may be configured to be connected via a communication means such as a parallel port using Centronics.

  As shown in FIG. 2, a print controller unit 21 is connected to the communication network N. The print controller unit 21 includes an I / F 211, a data conversion unit 212, and the like. The I / F 211 is a communication interface for connecting to the communication network N, such as a NIC (Network Interface Card) or a modem, and transmits / receives data to / from the host device 20. The data conversion unit 212 converts the print data input via the I / F 211 into image data in a data format that can be printed by the image forming apparatus 1 in a predetermined page description language, and sends it to the DRAM control IC 22 described later together with the control data. Output.

  A state management unit 23 included in the image forming apparatus main body 2 is connected to the print controller unit 21. The state management unit 23 includes a CPU 24, a program memory 25, a RAM (Random Access Memory) 26, a nonvolatile memory 27, a reading processing unit 28, a DRAM (Dynamic Random Access Memory) control IC 22, a compression / decompression IC 29, and an image memory (DRAM) 30. And a write processing unit 31.

The CPU 24 reads out various processing programs stored in the program memory 25 and develops them in the RAM 26, and centrally controls the operations of the respective parts of the image forming apparatus 1 according to the developed programs.
For example, the CPU 24 feeds paper for each job from a paper tray input based on the initial setting input via the operation display unit 17 or input via the print controller unit 21. The setting information for each job is stored in the job setting storage area of the RAM 26, and is sequentially supplied from the selected paper tray every time the job is executed based on the stored setting information. A job refers to a series of operations related to image formation such as printing. For example, when copying a plurality of documents, a series of operations related to copying a plurality of documents is one job, and a plurality of copies are copied. When performing, a series of operations related to copying for a plurality of copies is one job.
Further, the CPU 24 executes various processes to be described later according to the read program to realize a control unit.

  The program memory 25 includes a nonvolatile memory such as a semiconductor and stores various processing programs such as a system program corresponding to the image forming apparatus 1. Specifically, the program memory 25 compares an input user number and password with user information stored in advance as initial setting information, and an authentication program for performing user authentication, and a sheet corresponding to the authenticated user. A paper tray identification program for acquiring setting information and identifying usable paper tray groups, a display program for displaying usable paper tray groups, and a desired paper tray by a user from among the registered paper tray groups And at least a paper tray selection program for selecting. The program is stored in the form of computer readable program code, and the CPU 24 sequentially executes operations according to the program code.

  The RAM 26 is a temporary storage area for programs read from the program memory 25, input or output data, parameters, and the like in various processes controlled by the CPU 24. For example, the RAM 26 has a job setting information storage area for temporarily storing setting information for each job.

The nonvolatile memory 27 stores various setting data related to the image forming apparatus 1. Specifically, the nonvolatile memory 27 stores user authentication information at the time of initial setting and paper setting information for each user. The nonvolatile memory 27 stores paper type information provided in each of the paper trays 4 a to 4 e of the large capacity tray unit 3.
Here, the paper setting information is a table as shown in FIG. 3, and specifies the types of paper that can be used for each user. The paper type is determined based on a table as shown in FIG. 4. In this embodiment, the paper [1] represents the sample A paper and the paper [2] represents the sample B paper. Paper [3] represents coated paper, paper [4] represents glossy dedicated paper, and paper [5] represents plain paper. Note that the paper types corresponding to the paper [1] to the paper [5] can be changed (see FIGS. 5 and 6), and the number of paper types is not particularly limited. In addition, process conditions depending on image formation may be set for each sheet, and it is not necessary to set a separate process condition each time a sheet is selected by setting single-sided printing or double-sided printing according to the sheet. , Mistakes in setting process conditions can be reduced.
The paper type information is a table as shown in FIG. 7 and represents the type and size of the paper provided in each of the paper trays 4a to 4e. Note that the paper type information can set the paper type provided in each of the paper trays 4a to 4e via a tray setting screen as shown in FIG.

  The read processing unit 28 converts the analog image signal read by the scanner unit 32 into digital image data and outputs the digital image data to the DRAM control IC 22.

  Based on the control from the CPU 24, the DRAM control IC 22 compresses the image data input from the read processing unit 28 and the image data input from the print controller unit 21 by the compression / decompression IC 29, and the compressed image data is converted into an image. The data is written into the compression memory 301 of the memory 30 and temporarily stored. When the CPU 24 instructs to output image data, the DRAM control IC 22 decompresses the image data instructed to be output stored in the compression memory 301 by the compression / decompression IC 29 and outputs the decompressed image data to the write processing unit 31. The DRAM control IC 22 outputs control data input from the print controller unit 21 to the CPU 24.

The compression / decompression IC 29 is an IC that performs image data compression processing and decompression processing under the control of the DRAM control IC 22.
The image memory 30 is composed of a DRAM and has a compression memory 301. The compression memory 301 temporarily stores the image data compressed by the compression / decompression IC 29 under the control of the DRAM control IC 22.

  The writing processing unit 31 generates a PWM (Pulse Width Modulation) signal based on the image data input from the compression / decompression IC 29 and outputs the PWM signal to the printer unit 33.

  As shown in FIG. 2, the operation display unit 17 included in the image forming apparatus main body 2 is connected to the CPU 19. The operation display unit 17 includes an operation display control unit 171 and an LCD 172. The operation display control unit 171 receives a display signal from the CPU 24, performs display control on the LCD 172, and outputs an operation signal input from the touch panel on the LCD 172 as input means to the CPU 24.

  When the initial setting of the image forming apparatus body 2 is instructed, the operation display control unit 171 displays a user registration screen (see FIG. 9) on the LCD 172, and the user number, user name, and password are displayed via the user registration screen. The user authentication information such as is input. When paper setting selection is specified after the user authentication information is input, a list for selecting the type of paper to be used is displayed on the paper setting screen (see FIG. 10). When paper setting information or the like for each user is input via the paper setting screen and an initial setting execution is instructed, it is output and stored in the nonvolatile memory 27.

The LCD 172 displays various setting screens, image status display, operation status of each function, and the like on the screen in accordance with an instruction of a display signal input from the operation display control unit 171. On the screen of the LCD 172, a pressure-sensitive (resistive film pressure type) touch panel in which transparent electrodes are arranged in a grid is configured, and the XY coordinates of the force point pressed with a finger or a touch pen are detected by a voltage value. The obtained position signal is output to the operation display control unit 171 as an operation signal.
The operation display unit 17 includes other operation buttons such as number buttons (not shown), function buttons for switching various settings and operation modes, and a start button, and an operation signal generated by the button operation is sent from the operation display control unit 171 to the CPU 24. Output.

In the present embodiment, the operation display unit 17 displays an input screen (see FIG. 11) for inputting a user number and a password during user authentication as one of input means. The user number and password input via the input screen are output to the CPU 24 for user authentication.
Further, the operation display unit 17 displays a paper tray group display screen on the LCD 172 that displays a result of identifying the paper tray group that matches the paper setting information for each user, as a display means, and via the paper tray group display screen. The paper tray selection information input for the user to select a desired paper tray is output to the CPU 24. Here, the result of identifying the paper tray group is selected by applying a shading process (hatched hatching in FIG. 12) to the button of the paper tray not included in the usable paper tray group regardless of the display format. It may not be possible. Further, the operation display unit 17 displays a selection screen on the LCD 172 for the user to select a desired one from the registered paper tray groups as a selection unit, and selects a paper tray input via the selection screen. Information is output to the CPU 24. At this time, as shown in FIG. 10, it is preferable that the user can visually recognize that the selected paper tray button has been selected.

  A scanner unit 32 included in the image forming apparatus main body 2 is connected to the reading processing unit 28. The scanner unit 32 includes a scanner control unit 321 and a scanner 322. The scanner control unit 321 receives a control signal from the CPU 24 and drives and controls each unit of the scanner 322. The scanner 322 includes a platen glass, a CCD (Charge Coupled Device), and a light source. The scanner 322 images the reflected light of the light scanned from the light source to the original by the CCD and photoelectrically converts the read image, The read analog image signal is output to the reading processing unit 28.

  An ADF unit 18 included in the image forming apparatus main body 2 is connected to the CPU 24. The ADF unit 18 includes an ADF control unit 181 that controls each part of the ADF unit 18 based on a control signal input from the CPU 24, and the document placed on the document tray 182 (see FIG. 1) is transferred to the platen glass of the scanner unit 32. Automatically feed one sheet at a time.

  A printer unit 33 included in the image forming apparatus main body 2 is connected to the writing processing unit 31. The printer unit 33 includes a printer control unit 331 and a printing unit 332. The printer control unit 331 receives a control signal from the CPU 24 and controls the operation of each unit of the print unit 332. The print unit 332 performs control so that the paper is sequentially fed from the paper tray for each job based on the selection result of the paper trays 4a to 4e output from the CPU 24. Further, the print unit 332 has a function as an image forming unit, and forms an image on a sheet fed based on the image data output from the writing processing unit 31.

Next, the operation in the first embodiment will be described.
FIG. 13 shows a paper tray group identification process executed by the image forming apparatus 1. This processing is realized by software processing in cooperation with the CPU 24 and the authentication program and paper tray identification program stored in the program memory 25, and is executed before the job is formed and the image is formed. Process.

  First, a user information input screen (see FIG. 11) is displayed on the operation display unit 17. The user inputs a user number and a password via the operation unit (step S1). If the input user number and password match the user information registered in advance, it is determined as user authentication (step S2; Yes). After the user authentication, the paper type information stored in the nonvolatile memory 27 is output to the CPU 24 (step S3), and the paper setting information corresponding to the authenticated user is also output to the CPU 24 (step S4). Then, based on the paper type information and the paper setting information, the paper tray including the paper matching the paper setting information is identified as being included in the usable paper tray group (step S5).

  When the paper tray identification is performed, the paper tray included in the usable paper tray group and the paper tray not included are distinguished and displayed as the identification result. Specifically, as shown in FIG. 12, paper trays that are not included in the usable paper tray group are displayed by being shaded on the LCD 172 and processed so that the user cannot select them (step S6). ). At this time, processing other than the paper tray containing paper of a size that matches the size of the image data output from the writing processing unit 31 may be performed so that the user cannot select it. In this way, usable paper tray groups are identified, and the process ends.

After the usable paper tray group is identified in this way, the user selects a desired paper tray from the usable paper tray group via the LCD 172, and sequentially feeds the paper tray from the paper tray by the transport unit. At the same time, image formation is performed by the image forming means.
Specifically, based on the control from the printer control unit 331, the printing unit 33 feeds the paper used in the job from one of the selected paper trays 4a to 4e by the transport unit, and the paper is fed. Transport the paper on the transport path. In the image forming unit, the surface of the photosensitive drum 13 is charged by the charger 12 based on an instruction from the printer control unit 331, and the photosensitive drum is driven by the LD 11 based on the PWM signal input from the writing processing unit 31. An electrostatic latent image is formed by irradiating the surface 13 with laser light, and toner is attached to a region including the electrostatic latent image on the surface of the photosensitive drum 13 by the developing device 14. Then, toner is transferred to the conveyed paper by the transfer unit 15 to form an image and fixed by the fixing unit 16. The sheet on which the image has been formed is conveyed to the discharge tray 7 by the discharge roller 8.

  As described above, according to the image forming apparatus 1 of the present embodiment, the paper setting information for each user is stored in advance, so that a paper tray having paper that does not match the paper setting information is selected to form an image. Can be prevented. That is, in the image forming apparatus 1 including the plurality of paper trays 4a to 4e, it is possible to reduce the possibility that the user makes an error in paper selection and causes an unintended paper to be formed.

  In addition, the user can select one of the desired paper trays 4a to 4e from the usable paper tray group, and image formation is performed under the process conditions stored in advance. It is possible to save the trouble of inputting the subordinate process conditions.

  Note that the paper tray selection program may not execute the subsequent image forming process when there is no paper tray that matches the paper setting information for each user. With this setting, when it is determined that a paper tray that matches the pre-stored paper setting information for each user is not provided, the subsequent image forming process is not executed, so that the user does not intend. It is possible to effectively prevent the image formation on the paper.

  In this embodiment, the image forming apparatus 1 includes the storage unit, the authentication unit, and the paper tray identification unit. However, the host device 20 may include these configurations. In this case, user authentication information, paper setting information, and paper type information are input through the input unit of the host device 20 and are initially set. Based on these information, identification processing of usable paper tray groups is performed. This is done by 20 CPUs.

1 is a front view illustrating a schematic configuration of an image forming apparatus according to an embodiment. 2 is a block diagram illustrating a control configuration of the image forming apparatus according to the present exemplary embodiment. FIG. It is a figure which shows the paper setting information in this embodiment. It is a figure which shows the paper type of the paper setting information in this embodiment. It is a figure which shows the example of a display screen at the time of changing the paper setting information in this embodiment. It is a figure which shows the example of a display screen at the time of confirming the paper setting information in this embodiment. It is a figure which shows the paper type information in this embodiment. It is a figure which shows the example of a display screen at the time of confirming or changing the paper type information in this embodiment. It is a figure which shows the example of a display screen at the time of inputting user authentication information in this embodiment. It is a figure which shows the example of a display screen at the time of inputting the paper setting information in this embodiment. It is a figure which shows the example of a display of the user information input screen in this embodiment. 6 is a diagram illustrating a display example of usable paper tray group identification results in the present embodiment. FIG. 6 is a flowchart showing a flow of usable sheet tray group identification processing in the present embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image forming apparatus 2 Image forming apparatus main body 3 Large capacity tray unit 7 Discharge tray 17 Operation display part 18 ADF part 20 Host apparatus 21 Print controller part 23 Status management part 25 Program memory 27 Non-volatile memory 28 Reading process part 30 Image memory 31 Writing Processing unit 32 Scanner unit 33 Printer unit

Claims (6)

Storage means for storing user authentication information and paper setting information for each user;
Authentication means for determining whether or not the user authentication information matches the input user information;
A paper tray identification that identifies a paper tray group that matches the paper setting information as a paper tray group that can be used by the user from among a plurality of paper tray groups that contain different types of paper. Means,
Display means for displaying an identification result by the paper tray identifying means for each of the paper trays;
A paper tray selection means for selecting a desired paper tray from the usable paper tray group displayed by the display means;
A transport unit that sequentially feeds paper from the paper tray selected by the paper tray selection unit and transports the fed paper to a discharge tray according to a transport path;
Image forming means for forming an image on the supplied paper based on the input image data;
An image forming apparatus comprising:   The image forming apparatus according to claim 1, wherein the paper tray selecting unit does not execute the image forming process by the image forming unit when there is no paper tray that matches the paper setting information.   The image forming apparatus according to claim 1, wherein the storage unit is capable of storing a process condition depending on each sheet that matches the sheet setting information. A computer that controls an image forming apparatus that forms an image on a predetermined sheet of paper,
A storage function for storing user authentication information and paper setting information for each user;
An authentication function for determining whether or not the user authentication information matches the input user information;
A paper tray identification that identifies a paper tray group that matches the paper setting information as a paper tray group that can be used by the user from among a plurality of paper tray groups that contain different types of paper. Function and
A display function for displaying an identification result by the paper tray identification function for each of the paper trays;
A paper tray selection function for selecting a desired paper tray from the usable paper tray group displayed by the display function;
A transport function that sequentially feeds paper from the paper tray selected by the paper tray selection function and transports the fed paper to a discharge tray according to a transport path;
An image forming function for forming an image on the supplied paper based on the input image data;
A program characterized by realizing.   5. The program according to claim 4, wherein the paper tray selection function does not execute the image forming process by the image forming function when there is no paper tray that matches the paper setting information.   The program according to claim 4 or 5, wherein the storage function can store a process condition dependent on each sheet that matches the sheet setting information.

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