JP4093143B2 - Image forming apparatus, program, and computer-readable recording medium - Google Patents

Description

The present invention has an authentication function, an image forming apparatus for executing a plurality of programs sequentially, to a program and a computer-readable recording medium.

  2. Description of the Related Art In recent years, an image processing apparatus (hereinafter referred to as a multifunction machine) is known as an example of an information processing apparatus in which functions of apparatuses such as a printer, a copy, a facsimile, and a scanner are housed in a single casing. This multi-function apparatus is provided with a display unit, a printing unit, an imaging unit, and the like in one casing, and four types of software corresponding to a printer, a copy, a facsimile, and a scanner, respectively. Operates as a copy, facsimile and scanner.

  In such a fusion machine, when operating as a printer, copy, facsimile or scanner, the user is authorized to use the printer, copy, facsimile or scanner using an authentication function, and Billing was done using the billing function. It was necessary to achieve both the safety of the authentication function and the ease of handling. In addition, it is necessary to manage the entry information from the user in association with the group information.

In addition, when printing reservations are made, a technology has been proposed that can request the input of a password when deleting the reservation contents and changing the priority order, and only the user who made the reservation can operate the reservation job. (For example, refer to Patent Document 1).
JP 2001-111743 A

The present invention is an object of the work efficiency and improve security of the image forming equipment which assumes these techniques, in particular the operation of the device related to the timing of the authentication.

An image forming apparatus according to the present invention includes an authentication unit for performing user authentication and logging in, a logout unit including a logout key for invalidating user authentication, a reading unit for outputting read image data of a document image, and the reading unit a printing unit for printing an image based on image data read, and a determination means for reading a document by at said reading means the logout key is pressed to determine whether a running said determination means , when it is determined that the reading executed, disables the logout means, said determining means, when it is judged not to be the reading execution, characterized in that to enable the logout means.

The program according to the present invention includes an authentication process for performing user authentication and logging in, a logout process for invalidating user authentication by a logout key, a reading process for outputting read image data of a document image, and an image read by the reading unit. A printing process for printing an image based on data, a determination process for determining whether the reading unit is reading a document when the logout key is pressed , and a reading process being performed by the determination process. When the determination is made, the computer is caused to execute a process for prohibiting the logout process and a process for enabling the logout process when it is determined by the determination process that reading is not being executed.

In addition, the program according to the present invention includes a management process for registering and managing a specific user who activates a predetermined operation by an operation unit during execution of a printing operation in a state where the user authentication is invalidated, and the predetermined process When a user operation is performed, a user authentication is requested, and an authentication process for performing authentication based on the management unit and a control process for enabling the operation when the user is authenticated are executed by the computer. To do.
A storage process for storing the image data; a reservation process for reserving printing of the stored image data; and at least one print reservation in a state where the user authentication is invalidated, A management process for registering and managing a specific user for enabling a predetermined operation by the operation means, an authentication process for requesting user authentication when the predetermined operation is performed, and performing authentication based on the management means; When the authentication is performed, a control process for enabling the operation is executed by a computer.
A computer-readable recording medium according to the present invention records the above programs.

Further, in the image forming apparatus, if the logout is attempted when the reading is not completed, a message indicating that the logout cannot be performed may be issued.
Further, during execution of the printing operation in the logged out state, a specific user who validates a predetermined operation by the operation means may be registered and managed.
Further, user authentication may be requested when the predetermined operation is performed, authentication may be performed based on the management information, and the operation may be validated when authenticated.
The predetermined operation may be a print operation interruption operation, a cancel operation, and a print condition setting content change operation.

In addition, the image data is stored, and printing of the stored image data is reserved, and when at least one print reservation exists in the logged out state, a predetermined operation by the operation means is made effective. To register and manage a specific user, request user authentication when the predetermined operation is performed, perform authentication based on the management information, and validate the operation when authenticated You can make it.
The predetermined operations may be a print reservation deletion operation, a setting content change operation, and a print reservation execution order change operation.
The list of print reservations may be displayed without authentication.

  By logging out when reading is completed and opening the reading unit, the reading unit can read the next document image without finishing printing, and work efficiency can be improved. .

  After the reading is completed, the reading means is opened during execution of the printing operation so that the next use can be performed, and logout for continuing the printing operation can be performed.

FIG. 8 is a block diagram showing an image forming apparatus according to an embodiment of the present invention.
A document bundle placed on the document table 2 in the automatic document feeder (hereinafter referred to as ADF) 1 with the image surface of the document facing up starts from the top document when the start key 34 on the operation unit 30 is pressed. The sheet is fed to a predetermined position on the contact glass 6 by the feeding roller 3 and the feeding belt 4. After the image data of the original on the contact glass 6 is read by the reading unit 50, the original that has been read is discharged by the feeding belt 4 and the discharge roller 5. Further, when it is detected by the document set detector 7 that the next document is on the document table 2, it is fed onto the contact glass 6 in the same manner as the previous document. The feeding roller 3, the feeding belt 4, and the discharging roller 5 are driven by a motor.

  The transfer papers stacked on the first tray 8, the second tray 9, and the third tray 10 are fed by the first paper feeding device 11, the second paper feeding device 12, and the third paper feeding device 13, respectively, and are conveyed vertically. The unit 14 is transported to a position where it abuts on the photoreceptor 15. The image data read by the reading unit 50 is written on the photoconductor 15 by the laser from the writing unit 57 and passes through the developing unit 27 to form a toner image. Then, the toner image on the photoconductor 15 is transferred while the transfer paper is conveyed by the conveyance belt 16 at the same speed as the rotation of the photoconductor 15. Thereafter, the image is fixed by the fixing unit 17 and discharged to the finisher 100 of the post-processing apparatus by the paper discharge unit 18.

  The finisher 100 of the post-processing apparatus can be guided in the normal paper discharge roller 102 direction and the staple processing unit direction. By switching the switching plate 101 upward, the sheet can be discharged to the normal discharge tray 104 side via the transport roller 103. Further, by switching the switching plate 101 downward, the switching plate 101 can be conveyed to the staple table 108 via the conveying rollers 105 and 107. The transfer paper loaded on the stapling stage 108 is aligned by the paper jogger 109 each time a sheet is discharged, and is bound by the stapler 106 upon completion of partial copying. The group of transfer sheets bound by the stapler 106 is stored in the staple completion discharge tray 110 by its own weight.

  On the other hand, the normal paper discharge tray 104 is a paper discharge tray that can move back and forth. The paper discharge tray section 104 that can be moved back and forth moves forward and backward for each original or each copy section sorted by the image memory, and sorts copy paper that is simply discharged. When forming an image on both sides of the transfer paper, the transfer paper fed from each of the paper feed trays 8 to 10 is not guided to the paper discharge tray 104 side, and the branch claw 112 for switching the path is used. By setting it on the upper side, it is once stocked in the duplex feeding unit 111.

Thereafter, the transfer paper stocked in the double-sided paper feeding unit 111 is re-fed from the double-sided paper feeding unit 111 to transfer the toner image formed on the photosensitive member 15 again, and the branching claw 112 for switching the path. Is set on the lower side and guided to the paper discharge tray 104. In this way, the duplex feeding unit 111 is used when creating images on both sides of the transfer sheet.
The photoreceptor 15, the transport belt 16, the fixing unit 17, the paper discharge unit 18, and the development unit 27 are driven by a main motor 25, and the paper feeding devices 11 to 13 are driven by the paper feeding clutches 22 to 24, respectively. Driven by transmission. The vertical conveyance unit 14 is driven to transmit the drive of the main motor 25 by the intermediate clutch 21.

FIG. 9 is a configuration diagram showing the operation unit 30.
The operation unit 30 includes a liquid crystal touch panel 31, a numeric keypad 32, a clear / stop key 33, a print key 34, a preheat key 35, a reset key 36, and a logout key 37. A message indicating the state of the key or the image forming apparatus is displayed.

FIG. 10 is a configuration diagram illustrating a display example of the liquid crystal touch panel 31 of the operation unit 30.
When the operator touches a key displayed on the liquid crystal touch panel 31, the key indicating the selected function is inverted in black. In addition, when it is necessary to specify the details of the function (for example, if it is variable magnification, the variable magnification value, etc.), the detailed function setting screen is displayed by touching the key. As described above, since the liquid crystal touch panel uses a dot display, it is possible to graphically perform an optimal display at that time.

In FIG. 10, there is a message area for displaying messages such as “Ready to copy” and “Please wait” in the upper left, and there are a linked copy key and a system status key. In addition, the copy number display section that displays the set number of sheets, the automatic paper selection key that automatically selects the transfer paper, the sort key that specifies the process of arranging copies in order of pages, and the process that sorts copies by page A stack key that specifies the size, a staple key that specifies the processing for binding the sorted items one by one, an equality key that sets the magnification to the same magnification, a scaling key that sets the enlargement / reduction magnification, and a duplex mode Double-sided key, editing key for setting binding margin mode, etc., cover / interleaf key for setting cover / interleaf mode, and connection mode key for printing out a large number of printing operations through a digital copier network. There is.
In addition, a paper feed tray state corresponding to the number of paper feed trays is displayed, and keys for manually setting the paper feed tray are displayed for the number of paper feed trays.

With reference to FIG. 8, the image reading means in the present invention, and the configuration and operation until a latent image is formed on a recording surface will be described. A latent image is a potential distribution generated by converting an image into light information and irradiating it on the surface of the photoreceptor.
The reading unit 50 includes a contact glass 6 on which an original is placed and an optical scanning system. The optical scanning system includes an exposure lamp 51, a first mirror 52, a lens 53, a CCD image sensor 54, and the like. Yes. The exposure lamp 51 and the first mirror 52 are fixed on a first carriage (not shown), and the second mirror 55 and the third mirror 56 are fixed on a second carriage (not shown).

  When reading a document image, the first carriage and the second carriage are mechanically scanned at a relative speed of 2 to 1 so that the optical path length does not change. This optical scanning system is driven by a scanner drive motor (not shown). The document image is read by the CCD image sensor 54, converted into an electrical signal, and processed. The image magnification is changed by moving the lens 53 and the CCD image sensor 54 in the left-right direction in FIG. That is, the positions of the lens 53 and the CCD image sensor 54 are set in the left-right direction corresponding to the designated magnification.

  The writing unit 57 includes a laser output unit 58, an imaging lens 59, and a mirror 60. Inside the laser output unit 58, a rotary polygon mirror (polygon mirror) that rotates at a high speed at a high speed by a laser diode as a laser light source and a motor. ). The laser light emitted from the laser output unit 58 is polarized by a polygon mirror that rotates at a constant speed, passes through an imaging lens 59, is folded by a mirror 60, and is focused and imaged on the surface of the photoreceptor. The polarized laser light is exposed and scanned in the direction (main scanning direction) perpendicular to the direction in which the photosensitive member rotates, and the line-by-line recording of the image signal output from the selector 64 of the image processing unit described later is performed. An image (electrostatic latent image) is formed on the surface of the photosensitive member by repeating main scanning at a predetermined cycle corresponding to the rotational speed and recording density of the photosensitive member.

  As described above, the laser beam output from the writing unit 57 is applied to the image forming photoconductor 15. Although not shown, a beam sensor for generating a main scanning synchronization signal is disposed at a position where a laser beam near one end of the photoconductor 15 is irradiated. Based on the main scanning synchronization signal, control of image recording start timing in the main scanning direction and generation of a control signal for inputting / outputting image signals described later are performed.

The configuration of the image processing unit (image reading unit and image writing unit) in this embodiment will be described with reference to FIG.
The light emitted from the exposure lamp 51 illuminates the original surface, and the reflected light from the original surface is imaged and received by a CCD image sensor 54 with an imaging lens (not shown) and subjected to photoelectric conversion. / D converter 61 converts the signal into a digital signal. The image signal converted into the digital signal is subjected to shading correction, MTF correction, γ correction, and the like by the shading correction unit 62 and the MTF / γ correction unit 63.

  In the selector 64, the destination of the image signal is switched to the writing γ correction unit 71 or the image memory controller 65. The image signal that has passed through the writing γ correction unit 71 is sent to the writing unit 57. Between the image memory controller 65 and the selector 64, an image signal can be input and output bidirectionally.

  A CPU 68 for setting the memory controller 65 and the like and controlling the reading unit 50 and the writing unit 57, and a ROM 69 and a RAM 70 for storing programs and data thereof are provided. Programs related to authentication, entry information, and group information are also stored here. Further, the CPU 68 can write and read data in the image memory 66 via the memory controller 65. In addition, an HDD 71 for saving or saving the contents of the image memory 66 is provided, and an I / O port 67 is further provided.

FIG. 12 is a block diagram of the drive unit.
The main controller 20 (determining means of claim 1) is connected to the operation unit 30, the keys 32 to 35, and the ADF 1, and is also connected to the main motor 25 and the clutches 21 to 24. An IPU (image processing unit) 49 connected to F48 is connected. A transport motor 26 and the document set sensor 7 are connected to the ADF 1. In addition to the image data input from the reading unit 50, the IPU 49 can input and output a plurality of data so as to process image data supplied from the outside (for example, data output from a data processing device such as a personal computer). It has a function to select.

Next, an image signal for one page in the selector 64 will be described with reference to FIG.
/ FGATE represents a valid period in the sub-scanning direction of one page of image data. / LSYNC is a main scanning synchronization signal for each line, and the image signal becomes valid at a predetermined clock after this signal rises. A signal indicating that the image signal in the main scanning direction is valid is / LGATE. These signals are synchronized with the pixel clock VCLK, and one pixel of data is sent for one cycle of VCLK. The IPU 49 in FIG. 12 has separate generation mechanisms for / FGATE, / LSYNC, / LGATE, and VCLK for image input and output, and various image input / output combinations can be realized.

  In order to share the work, it is necessary to transmit / receive image data and commands to / from another digital copying machine. In this embodiment, the IEEE 1394 connection interface is used for transmitting / receiving image data. A serial communication line is used. The memory controller 20 of FIG. 12 implements this via the connection I / F 48.

  The display screen shown in FIG. 14 is a copy operation condition setting screen that can set operation conditions. When the print key 34 of FIG. 9 is pressed, the screen is switched to the copy operation in-progress screen of FIG. This is a screen showing the setting state of the copy currently being operated. The reservation of the next copy to be performed (hereinafter referred to as “reserved copy”) is not registered, and the set operation mode such as automatic paper selection, automatic density, equal magnification, tray 1 (paper feeding operation) is displayed. ing.

  The display screen shown in FIG. 16 is a reserved copy operation screen, and is a screen for registering reserved copies. Displayed when the new reservation key 38 in FIG. 9 is pressed, and when the print key 34 is pressed, the reservation is registered, and the document reading operation starts. Further, the reserved copy can be canceled by depressing the cancel key 401 shown in the figure, and the screen can return to the screen that displays the setting state of the currently operating copy in FIG. In the display screens of FIGS. 14, 15 and 16, the job number is displayed in the message area at the upper center of the screen. The job number is a number for identifying a job, and is incremented by 1 every time a reservation is made. FIG. 17 shows a reservation standby screen.

  In the reserved copy mode, the operation unit 30 is opened during execution of the copy operation to enable operation input of the next job, and when the original reading operation of the job during the copy operation is completed, the reading unit 50 is used. This is an operation mode in which the scanner (including ADF1) is opened and the original image reading operation of the next job is enabled.

  When the initial setting key 37 is pressed, the screen shown in FIG. There are setting keys 35 to 38 as shown in the figure, which are set when the initial state of the machine is arbitrarily customized, the paper size stored in the machine is set, or the copy function reset key is pressed. The state and the like can be arbitrarily set.

  When the administrator setting key 39 is pressed, the liquid crystal touch panel 31 displays the administrator setting screen shown in FIG. When the user registration setting key 40 is pressed, a new user can be registered or a registered user can be deleted. It is possible to register a user name and password for each user. When the access level key key 43 is pressed, the access level can be changed for each user. The access level includes a level at which an operation for another person's job can be performed and a level at which the operation cannot be performed, and can be set by an administrator. This information is stored in the user management table.

Next, the operation | movement regarding Claims 1-11 of an Example is demonstrated.
When the authentication function is turned on, the authentication screen of FIG. 3 is displayed on the normal copy screen of FIG. When the user name input on the authentication screen matches that registered and managed in the user management table (entry information), the user is authenticated and login is completed, and the user can start operation.

Also, when you pressed the logout key 37 in FIG. 9, the user authentication is invalidated, it is displayed again authentication screen of FIG. A user who has been authenticated by this logout operation cannot use the functions of the apparatus. This logout operation can be performed when the document reading is completed. If the logout key 37 is pressed before the document reading is completed, a warning message in FIG. 4 indicating that logout is not possible is displayed.

The flow when the logout key is pressed is shown in FIG.
When the logout key 37 is pressed (S1 / Yes), it is determined whether the document is being read (S2), and if the reading is being executed, a message indicating that logout cannot be performed is displayed (S3). If reading is not in progress, logout processing is performed (S4). After logout, the reading unit 50 is opened and can be prepared for reading the next document. Also, the printing operation is continued.

  After performing the user authentication, when the scanning is completed during the copying operation and the user logs out when printing is being performed, the authentication screen is displayed when any predetermined operation is performed on the print job. The The authentication at this time is automatically invalidated without performing a logout operation when the predetermined operation is completed.

For example, when the stop key 33 in FIG. 2 is pressed as a predetermined operation while reading is completed during the copying operation and printing is being performed in the logged out state, the authentication flow by interruption in FIG. 2 is performed.
When the stop key 33 is pressed and an interruption operation is performed (S11), the authentication screen of FIG. 3 is displayed (S12). Here, when the user inputs a user name and a password (S13), authentication for the interruption operation is performed. When the user name and password match those belonging to the group that enables the interruption operation of the user executing printing in the user management table (S14, S16, S17, Yes), the printing interruption operation Is executed. If they do not match, authentication fails (S18), and printing is continued without interruption.

  In addition, when it is possible to cancel the printing being executed by a cancel button (not shown), the authentication screen is displayed when the cancel key is pressed, and the input user name and password are displayed in the user management table. A job being executed is canceled when it matches a job belonging to a group that enables the cancel operation of the user executing printing.

  Further, when the setting contents of the printing conditions can be changed even during printing, an authentication screen is displayed when the operation setting key in FIG. 15 is pressed, and the input user name and password are managed by the user. In the table, when the setting matches that belonging to the group that enables the setting change operation of the user executing printing, the setting of the job being executed is changed.

In addition, after the user authentication, when the reading is completed during the copying operation and the user logs out while the printing is being executed, the next reserved copying becomes possible. At this time, if there is no logout operation, the same user may make a reservation for the next printing without displaying the authentication screen at the intention of the designer. When a plurality of print reservation jobs occur, a plurality of user jobs exist as reservation jobs.
For example, when reading is performed in the logged out state, the read image data is stored in the image memory. Printing reservation can be made for the stored image data.

  The display screen shown in FIG. 5 is a job list screen that displays a list of the copy currently being printed and the reserved copy status. The job list screen is displayed when the job list key 38 of the operation unit 30 is pressed. At this time, the authentication screen is not displayed. FIG. 5 shows that three reserved jobs are registered in addition to the job being printed. Each job being displayed is a key, and when pressed, it is in a selected state and is highlighted. When pressed again in the inverted state, the inversion is canceled and the state returns to the non-selected state. FIG. 5 shows that three reserved jobs are registered in addition to the job being printed, and that reservation 2 is selected.

  After selection for each job, the forward / backward / content change / deletion keys 202, 203, 204, and 205 become effective. When authentication is ON, the authentication screen of FIG. 3 is displayed when the previous key 202 and the subsequent key 203 are pressed, and the entered user name and password are reserved in the user management table. If the user who belongs to the group belonging to the group for which the reservation order change operation is valid is matched, the reservation order can be changed, and the reservation order is changed by pressing the key 202 before the reservation order is changed. Move up one. However, it does not go before the job being printed. Further, the reservation order is incremented by pressing the key 203 backward. In FIG. 5, reservation 1 is selected as shown in FIG.

  In addition, when the content change key 204 is pressed, an authentication screen is displayed, and the input user name and password are assigned to a group that enables the reservation content change operation of the user who makes a reservation in the user management table. If it matches with the one to which the user belongs, the reservation content can be changed, the mode can be changed to the mode selection screen for the selected job, and the copy mode can be changed. In FIG. 5, when the content change key 204 is pressed, the screen changes to the screen of FIG. In FIG. 17, the user can return to the job list display screen of FIG.

  Furthermore, even when the delete key 205 is pressed, an authentication screen is displayed, and the input user name and password belong to a group that enables the reservation deletion operation of the user who makes a reservation in the user management table. If it matches, the reservation can be deleted, a deletion screen as shown in FIG. 7 is displayed, and when the key to be deleted is pressed, the specified deleted document is released.

According to the present embodiment, the following effects can be obtained.
1) By enabling logout when reading is completed, the resources of the reading unit 50 as reading means can be used effectively.
2) The user can be made aware that logout is not possible before the reading is completed.

  3) It is possible to prevent access to a job being executed by a person who must not perform an operation after logout, thereby improving the security of the apparatus. In this case, even if you are not the person who performed the operation, for example, a user who belongs to the administrator group can operate the job that is being executed by a person with the operation authority, and the level of security can be increased. Can be managed.

4) In addition to the effect of 3), it is possible to prevent a person who should not perform an operation from interrupting a job being executed, and to increase the security of the apparatus.
5) In addition to the effect of 3), it is possible to prevent a person who should not perform the operation from canceling the job being executed, and to increase the security of the apparatus.
6) In addition to the effect of 3), it is possible to prevent the person who should not perform the operation from changing the setting contents of the job being executed, and to increase the security of the apparatus.

7) In addition to the effect of 3), it is possible to prevent a person who must not perform an operation from accessing the reserved job, and to increase the security of the apparatus.
8) In addition to the effect of 3), it is possible to prevent a person who must not perform an operation from deleting a reserved job, and to increase the security of the apparatus.
9) In addition to the effect of 3), it is possible to prevent a person who must not perform an operation from changing the setting contents of the reserved job, and to increase the security of the apparatus.
10) In addition to the effect of 3), it is possible to prevent a person who must not perform an operation from changing the execution order of the reserved jobs, and to increase the security of the apparatus.
11) By displaying a list of jobs without authentication, other jobs can be operated if authorized.

  A program for the CPU to execute the processing based on the above-described operations and flowcharts constitutes a program according to the present invention, and a storage medium storing the program constitutes a computer-readable storage medium according to the present invention. As this storage medium, a semiconductor storage device, an optical and / or magnetic storage device, or the like can be used. By using such a program and storage medium in a system or the like having a configuration different from that of the above-described embodiment and causing the CPU to execute the program, substantially the same effect as the present invention can be obtained.

  The present invention can also be applied to an electronic apparatus that has operation means for performing various operations by a user and sequentially executes a plurality of programs.

It is a flowchart which shows the operation | movement regarding the logout operation by the Example of this invention. It is a flowchart which shows the operation | movement regarding interruption operation by the Example of this invention. It is a block diagram of an authentication screen. It is a block diagram of a warning message screen indicating that logout is not possible. It is a block diagram which shows the example of a job list display. FIG. 6 is a configuration diagram illustrating a job list display example when the previous key is pressed in FIG. 5. It is a block diagram of a reservation deletion screen. 1 is a configuration diagram of an image forming apparatus according to an embodiment of the present invention. It is a block diagram of an operation part. It is a block diagram which shows the example of a screen display of a liquid crystal touch panel. It is a block diagram of an image processing part. It is a block diagram of a drive part. It is a timing chart which shows the image data for 1 page, and a related signal. It is a block diagram of a copy operation condition setting screen. It is a block diagram of a copy operation screen. It is a block diagram of a reservation copy operation screen. It is a block diagram of a reservation waiting screen. It is a block diagram of an initial setting screen. It is a block diagram of an administrator setting screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic document feeder 2 Document base 30 Operation part 31 Liquid crystal touch panel 34 Print key 37 Logout key 38 Job list / new reservation key 40 User registration setting key 41 Authentication function setting key 66 Image memory 68 CPU
69 RAM
70 ROM
204 Contents change key 205 Delete key 501 Return to list key 401 Reservation release key

Claims (15)

An authentication means for performing user authentication and logging in;
Logout means consisting of a logout key to disable user authentication;
Reading means for outputting read image data of a document image;
Printing means for printing an image based on the image data read by the reading means;
And a determining means for determining whether reading of the document is being executed by at said reading means the logout key is pressed,
The judgment unit may, when it is determined that the reading executed, disables the logout means,
It said determination means to an image forming apparatus, characterized in that when it is judged not to be the reading execution, to enable the logout means.   The image forming apparatus according to claim 1, further comprising a warning unit that issues a message indicating that the logout process cannot be performed when the determination unit determines that reading is being performed. A management unit for registering and managing a specific user who activates a predetermined operation by the operation unit during execution of a printing operation in a state where the user authentication is disabled;
Authentication means for requesting user authentication when the predetermined operation is performed, and performing authentication based on the management means;
The image forming apparatus according to claim 1, further comprising a control unit that validates the operation when the user is authenticated.   The image forming apparatus according to claim 3, wherein the predetermined operation is a printing operation interruption operation.   The image forming apparatus according to claim 3, wherein the predetermined operation is a printing operation canceling operation.   The image forming apparatus according to claim 3, wherein the predetermined operation is an operation of changing a print condition setting content. Storage means for storing the image data;
Reservation means for reserving printing of the stored image data;
Management means for registering and managing a specific user who activates a predetermined operation by the operation means when at least one print reservation exists in a state where the user authentication is invalidated;
Authentication means for requesting user authentication when the predetermined operation is performed, and performing authentication based on the management means;
The image forming apparatus according to claim 1, further comprising a control unit that validates the operation when the user is authenticated.   8. The image forming apparatus according to claim 7, wherein the predetermined operation is a print reservation deletion operation.   The image forming apparatus according to claim 7, wherein the predetermined operation is an operation for changing a setting content of a print reservation.   The image forming apparatus according to claim 7, wherein the predetermined operation is an operation for changing a print reservation execution order.   The image forming apparatus according to claim 7, further comprising a display unit configured to display the list of print reservations without authentication. An authentication process for performing user authentication and logging in;
Logout processing to invalidate user authentication by logout key,
A scanning process for outputting scanned image data of a document image;
A printing process for printing an image based on the image data read by the reading unit;
A determining process of determining whether reading of the document is being executed by at said reading means the logout key is pressed,
When it is determined by the determination process that reading is being executed, a process for prohibiting the logout process;
A program for causing a computer to execute a process for enabling the logout process when it is determined by the determination process that reading is not being executed. A management process for registering and managing a specific user who activates a predetermined operation by an operation unit during execution of a printing operation in a state where the user authentication is invalidated;
An authentication process for requesting user authentication when the predetermined operation is performed, and performing authentication based on the management means;
13. The program according to claim 12, which causes a computer to execute a control process for validating the operation when authenticated. A storage process for storing the image data;
Reservation processing for reserving printing of the stored image data;
A management process for registering and managing a specific user who activates a predetermined operation by the operation means when at least one print reservation exists in a state where the user authentication is invalidated;
An authentication process for requesting user authentication when the predetermined operation is performed, and performing authentication based on the management means;
13. The program according to claim 12, which causes a computer to execute a control process for validating the operation when authenticated.   A computer-readable recording medium on which the program according to any one of claims 12 to 14 is recorded.

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