Image forming apparatus, information processing terminal, method, and program

Abstract

The present disclosure relates to an image forming apparatus, an information processing terminal, a method, and a program. When a kind of a sheet detected at the time of image formation is different from a kind of a sheet specified by a user, image formation is continued. The image forming apparatus includes a forming unit that performs image formation on a sheet conveyed on a conveyance path, a detecting unit that detects a kind of the sheet on which the image is formed, a specifying unit that receives a specification of the kind of the sheet from the user, and a setting unit that receives a user setting associated with the image formation, the user setting including a setting for causing the forming unit to continue the image formation when the kind of the sheet detected by the detecting unit is different from the kind of the sheet specified by the specifying unit.

Description

Technical Field

[0001] This disclosure relates to a structure for detecting the type of paper being conveyed in an image forming apparatus. Background Technology

[0002] A method has been proposed for detecting the type of paper in image forming apparatuses such as MFPs (Multi-Functional Peripherals) that have multiple functions such as printing, copying, and faxing. For example, Japanese Patent Application Publication No. 2018-106112 (Patent Document 1) discloses a structure that interrupts image forming when the first medium characteristic of the recording material during transport, detected by the medium detection component, differs from the second medium characteristic of the recording material for storing the already formed image.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2018-106112 Summary of the Invention

[0006] As disclosed in Patent Document 1, for example, after image forming processes such as printing have begun, if the image forming process is interrupted due to differences in media characteristics as described above, the convenience for the user of the image forming apparatus decreases. For example, the user adds a type of media, such as paper, to the image forming apparatus to ensure consistent media characteristics and requests to restart the interrupted image forming process. Furthermore, since the image forming process is interrupted, the user spends time until the processing result is obtained.

[0007] This disclosure provides a technique for continuing image formation when the type of sheet detected during image formation differs from the type of sheet specified by the user.

[0008] This disclosure provides an image forming apparatus comprising: a forming member for forming an image onto a sheet conveyed on a transport path; a detection member for detecting the type of sheet onto which the image is formed; a designation member for receiving designation of the type of sheet from a user; and a setting member for receiving user settings associated with image forming, the user settings including settings for continuing image forming if the type of sheet detected by the detection member differs from the type of sheet specified by the user received by the designation member.

[0009] In the above disclosure, the settings for enabling the forming component to continue performing image forming include a setting indicating that a sheet of either the detected sheet type or a user-specified sheet type will be used for the image forming.

[0010] In the above disclosure, the settings for enabling the forming component to continue performing image forming include a priority setting indicating that one of the detected sheet type and the user-specified sheet type is given priority over the other for the image forming.

[0011] In the above disclosure, priority is based on characteristics related to the image formation of the forming component.

[0012] In the above disclosure, the features include at least one of image quality, speed, and power consumption in the image formation of the forming component.

[0013] In the above disclosure, the setting component has a UI component, namely a user interface component, and user settings are associated with images based on user operations performed on the UI component.

[0014] In the above disclosure, the image forming apparatus further includes the following component: when image forming is performed by the forming component, if the type of sheet detected by the detection component is different from the type of sheet specified by the user, the forming component is controlled to continue image forming in accordance with the settings.

[0015] In the above disclosure, when the designated component receives the designation of the sheet type from the user, the setting component operates in a manner that accepts the settings for continuing to perform image formation.

[0016] In the above disclosure, the image forming apparatus also includes a supply member configured to receive a sheet supplied to a transport path. When the user receives the sheet in the supply member, the setting member operates in a manner that accepts the setting for continuing to perform image forming.

[0017] In the above disclosure, the settings for enabling the forming component to continue performing image forming include settings indicating which of a user's tasks the settings are applied to.

[0018] In the above disclosure, the setting component is configured for each of the multiple users of the image forming apparatus to receive settings from that user to enable the forming component to continue performing image forming.

[0019] In the above disclosure, the image forming apparatus further includes one or more supply members configured to accommodate sheets supplied to the transport path. The designating member has the following components: for each of the one or more supply members, the user accepts the designation of the type of sheet accommodated in the supply member; the setting member has a first setting member, which accepts a setting for each supply member to cause the forming member to continue performing image forming. The setting includes a setting to cause the forming member to continue performing image forming if the type of sheet detected by the detection member is different from the type of sheet specified by the user for the supply member that supplies the sheet to the transport path.

[0020] In the above disclosure, the image forming apparatus also includes a communication component that communicates with an information processing terminal. The setting component receives user settings associated with image forming from the information processing terminal via the communication component, and thereby accepts the user settings.

[0021] In the above disclosure, the settings for enabling the forming component to continue performing image forming also include a setting to output a notification to the user when a predetermined condition is met based on the combination of the detected sheet type and the sheet type specified by the user.

[0022] The above disclosure also includes the following components: when performing image formation, if the type of sheet detected by the detection component is different from the type of sheet specified by the user and accepted by the designation component, the type of sheet for continuing to perform the image formation according to the settings is selected, and the processing control conditions for image formation are set according to the difference between the type of sheet detected by the detection component and the selected type of sheet.

[0023] This disclosure provides a computer-implemented method comprising: a step of performing image formation on a sheet conveyed in a transport path of an image forming apparatus; a step of detecting the type of sheet for forming the image; a step of accepting a designation of the type of sheet from a user; and a step of accepting a user setting associated with image formation, the user setting including a setting for continuing image formation in the step of performing image formation if the type of sheet detected in the detection step is different from the type of sheet specified by the user in the acceptance designation step.

[0024] This disclosure provides a computer-executable program that causes the computer to perform: a step of performing image formation on a sheet being conveyed on a transport path; a step of detecting the type of sheet for forming the image; a step of accepting a specification of the type of sheet from a user; and a step of accepting user settings associated with image formation, the user settings including settings for continuing to perform image formation in the step of performing image formation if the type of sheet detected in the detection step is different from the type of sheet accepted in the acceptance specification step.

[0025] This disclosure provides an information processing terminal that communicates with an image forming apparatus that performs image forming on a sheet on a transport path. The terminal includes: a setting unit that accepts user settings associated with image forming; and a sending unit that sends the user settings accepted by the setting unit to the image forming apparatus. The user settings include settings for causing the image forming apparatus to continue performing image forming if the type of sheet on which the image is formed is different from the type of sheet specified by the user.

[0026] This disclosure provides a computer-executable program that causes the computer to perform: a step of accepting user settings associated with image formation of a sheet on a transport path in an image forming apparatus; and a step of sending the user settings accepted in the acceptance step to the image forming apparatus, the user settings including settings for causing the image forming apparatus to continue image formation if the type of sheet forming the image is different from the type of sheet specified by the user.

[0027] According to this disclosure, the user settings associated with image formation performed by the forming component include settings for continuing image formation even when the type of sheet detected by the detection component differs from the type of sheet specified by the user and accepted by the designating component. Therefore, even when the type of sheet detected during image formation differs from the type of sheet specified by the user, image formation can continue according to the user settings. Attached Figure Description

[0028] Figure 1 This is a diagram showing the appearance of the MFP1, which is an embodiment of the image forming apparatus of this disclosure.

[0029] Figure 2 This is a schematic diagram showing the internal structure of MFP1.

[0030] Figure 3 This is a diagram showing the hardware structure of the MFP1.

[0031] Figure 4 This is a diagram used to illustrate the structure of a paper sensor.

[0032] Figure 5 This is an enlarged view of the optical detection unit in the paper sensor.

[0033] Figure 6 This is an enlarged view of the ultrasonic detection unit in the paper sensor.

[0034] Figure 7 This is a diagram illustrating an example of the module structure of MFP1.

[0035] Figure 8 This is a diagram illustrating an example of the structure of the task in this embodiment.

[0036] Figure 9 This is a diagram schematically illustrating an example of information stored in the HDD of this embodiment.

[0037] Figure 10 This is a diagram illustrating an example of the setting data in this embodiment.

[0038] Figure 11This is a diagram illustrating an example of priority determination data in this embodiment.

[0039] Figure 12 This is a diagram illustrating an example of the process parameters of this embodiment.

[0040] Figure 13 This is a diagram illustrating an example of a combination of paper types in this embodiment.

[0041] Figure 14 This is a diagram showing an example of a UI screen in this embodiment.

[0042] Figure 15 This is a diagram showing an example of a UI screen in this embodiment.

[0043] Figure 16 This is a diagram showing an example of a UI screen in this embodiment.

[0044] Figure 17 This is a diagram showing an example of a UI screen in this embodiment.

[0045] Figure 18 This is a diagram showing an example of a UI screen in this embodiment.

[0046] Figure 19 This is a flowchart of the user-defined processing in this embodiment.

[0047] Figure 20 This is a flowchart illustrating the process of performing the task in this embodiment.

[0048] Figure 21 This is a diagram that schematically illustrates an example of the structure of the terminal in this embodiment.

[0049] (Symbol Explanation)

[0050] 1: MFP; 2: Main unit; 4, 4A, 4B, 4C, 4D: Paper feed trays; 4X: Manual paper feed tray; 5: Transfer unit; 6: Fixing unit; 7: Paper discharge tray; 8: Paper feeding device; 9, 25: Operation panel; 9A, 23: Display; 10: Main control unit; 92: Setting data; 93: Priority determination data; 94: Processing parameters; 95: Paper type combination; 104: Image processing unit; 105: Image memory; 113: Control unit; 117: Imaging unit; 118: Transport control unit; 190: Paper type detection unit; 191: Paper type selection unit; 192: Image forming control unit ; 193: Setting unit; 194: External communication control unit; 195: Notification control unit; 196: First setting unit; 197: Designation unit; 200, 300: Terminal; 221: Browser; 500: Paper sensor; 910: Application program; 911: Setting program; 912: Task processing program; 924: Selection setting; 925: Priority; 926: Continuity; 927: Notification; 928: User setting data; 931: Item; 932: Priority; 941: Paper type; 942: Parameter; 951: Group; P1: Original; P2: Paper; R0: Main transport path; R1: Paper supply path. Detailed Implementation

[0051] Hereinafter, with reference to the accompanying drawings, one embodiment of the image forming apparatus will be described. In the following description, the same reference numerals will be used for the same parts and constituent elements. Their names and functions are also the same. Therefore, their descriptions will not be repeated.

[0052] In this embodiment, the MFP1 is exemplified as an image forming apparatus, but it is not limited to such a multifunction printer. This embodiment can also be applied to printers, copiers, etc.

[0053] In this embodiment, a sheet-like recording medium made of raw materials used to form an image is collectively referred to as a "sheet". In this embodiment, the case where the raw material of the sheet used as the recording medium is "paper" is described, but it can also be made of raw materials other than paper. For example, the sheet of the recording medium may also include sheets made of resin raw materials, textile raw materials, etc.

[0054] In this embodiment, a structure is provided such that when the image forming apparatus performs image forming on a sheet being conveyed along the transport path, image forming can continue without interrupting even if the type of sheet detected with respect to the conveyed sheet differs from the type of sheet specified by the user in association with image forming. Hereinafter, for the purpose of explanation, the situation where the type of sheet detected with respect to the conveyed sheet differs from the type of sheet specified by the user in association with image forming is sometimes referred to as a "different type situation," the detected sheet type is referred to as a "detected type," the sheet type specified by the user is referred to as a "specified type," and the sheet type selected for continuing image forming is referred to as a "selected type."

[0055] <1. Schematic Structure of an Image Forming Apparatus>

[0056] Figure 1 This is a diagram showing the appearance of the MFP1, which is an embodiment of the image forming apparatus of this disclosure.

[0057] Figure 2 This diagram schematically illustrates the internal structure of the MFP1. The following primarily explains the structure related to image formation in MFP1-based printing.

[0058] like Figure 1 as well as Figure 2 As shown, the MFP1 includes: an image reading unit 3 for reading an image from a document P1; paper trays 4A-4D for holding paper P2, the recording medium for forming the image; a transfer unit 5 for transferring the toner image to the paper P2; a fixing unit 6 for fixing the toner image transferred by the transfer unit 5 onto the paper P2; a paper discharge tray 7 for discharging the paper P2 from which the image is formed by fixing by the fixing unit 6; and an operation panel 9 for handling user operations on the MFP1. In the main body 2 of the MFP1, the image reading unit 3 is located at the top, and the transfer unit 5 is located at the bottom. The operation panel 9 can be configured as a touch panel integrating a touch sensor and a display 9A. The operation panel 9 can also be configured with hardware buttons.

[0059] As described above, the MFP1 has four paper feed trays 4A to 4D. Each of the paper feed trays 4A to 4D is configured to accommodate a feed section capable of receiving sheet material supplied to the transport path. The MFP1 of this embodiment is not limited to multiple paper feed trays; one or more are sufficient. Furthermore, the manual paper feed tray 4X, described later, can also constitute this paper feed section. In this embodiment, when referring to the common properties of the paper feed trays 4A to 4D and the manual paper feed tray 4X, the paper feed trays 4A to 4D and the manual paper feed tray 4X are sometimes referred to as "paper feed tray 4".

[0060] In the MFP1, the paper tray 7 is positioned above the transfer unit 5 to receive the paper P2 discharged by the transfer unit 5 and the fixing unit 6 for image recording. The paper feed tray 4 is positioned below the transfer unit 5. The paper feed tray 4 can be inserted and removed relative to the device body 2. In the MFP1, the paper P2 contained in the paper feed tray 4 is supplied into the device body 2. The paper P2 is conveyed upwards and then delivered to the transfer unit 5 located above the paper feed tray 4, where the image is transferred. The fixing unit 6 fixes the image transferred to the paper P2. After being processed by the fixing unit 6, the paper P2 is discharged into the paper tray 7. The paper tray 7 is positioned in the space (recessed space) between the image reading unit 3 and the transfer unit 5.

[0061] The image reading unit 3 includes: a scanner unit 31 that reads images from the original document P1; and an automatic document feeder (ADF) 32, which is located above the scanner unit 31 and feeds the original document P1 one image at a time to the scanner unit 31. An operation panel 9 is provided on the front side (front surface side) of the device body 2. The user can select functions from the various functions of the MFP1 or instruct the MFP1 to perform tasks by observing the display screen on the operation panel 9 and pressing the buttons.

[0062] Reference Figure 2 The internal structure of the main body 2 of the device is explained. The scanner unit 31 of the image reading unit 3 includes: a document stage 33 with a document stage glass (not shown) on the upper surface side; a light source unit 34 that illuminates the document P1; an image sensor 35 that photoelectrically converts the reflected light from the document P1 into image data; an imaging lens 36 that images the reflected light onto the image sensor 35; and a group of reflecting mirrors 37 that sequentially reflects the reflected light from the document P1 and incident it onto the imaging lens 36.

[0063] The light source 34, image sensor 35, imaging lens 36, and mirror group 37 are disposed inside the document stage 33. The light source 34 and mirror group 37 are configured to be movable in the left-right direction relative to the document stage 33.

[0064] An ADF32 is provided on the upper surface of the scanner unit 31. The ADF32 can be opened and closed relative to the document stage 33 and has a document loading tray 38 and a document ejection tray 39. The ADF32 covers the document P1 on the document stage glass (not shown) of the document stage 33, so that the document P1 can be pressed tightly against the document stage glass (not shown).

[0065] In the image reading unit 3, when reading the original document P1 on the platen glass (not shown) of the original document stage 33, light is emitted from the light source unit 34, which moves to the right (sub-scanning direction), onto the original document P1. The reflected light from the original document P1 is sequentially reflected by the group of mirrors 37, which move to the right in the same direction as the light source unit 34, and then incident on the imaging lens 36, forming an image on the image sensor 35. The image sensor 35 performs photoelectric conversion for each pixel according to the intensity of the incident light, generating an image signal (RGB signal) corresponding to the image of the original document P1.

[0066] On the other hand, when the image sensor 35 reads the original document P1 placed on the original document tray 38, the original document P1 is transported to the reading position by the original document transport member 40, which includes multiple rollers, etc. The light source 34 and the mirror group 37 of the scanner unit 31 are fixed at a predetermined position inside the original document stage 33. Light is irradiated onto the reading position portion of the original document P1 by the light source 34, and the reflected light is imaged onto the image sensor 35 by the mirror group 37 and the imaging lens 36 of the scanner unit 31. Then, the image sensor 35 converts the reflected light into an image signal (RGB signal) corresponding to the image of the original document P1. After that, the original document P1 is discharged to the original document discharge tray 39.

[0067] The transfer unit 5, which transfers the toner image onto paper P2, includes: an image-forming unit 51 that generates Y (Yellow), M (Magenta), C (Cyan), and K (Key). The image consists of toner images of each color (primary tone); an exposure unit 52 disposed below each of the imaging units 51; an intermediate transfer belt 53 abutting against the imaging units 51 of each color arranged horizontally, thereby transferring the toner images of each color from the imaging units 51; a primary transfer roller 54 disposed opposite to the upper side of each color imaging unit 51 in a manner that clamps the imaging unit 51 and the intermediate transfer belt 53; a drive roller 55 that rotates the intermediate transfer belt 53; a driven roller 56 that rotates due to the rotation of the drive roller 55 transmitted via the intermediate transfer belt 53; a secondary transfer roller 57 that clamps the intermediate transfer belt 53 and is disposed opposite to the drive roller 55; and a cleaner unit 58 that clamps the intermediate transfer belt 53 and is disposed opposite to the driven roller 56.

[0068] The imaging unit 51 includes: a photosensitive drum 61 that abuts against the outer peripheral surface of the intermediate transfer belt 53; an electric charge unit 62 that charges the outer peripheral surface of the photosensitive drum 61 through corona discharge; a developer unit 63 that causes the charged toner, which is stirred, to adhere to the outer peripheral surface of the photosensitive drum 61; and a cleaner unit 64 that removes toner residue remaining on the outer peripheral surface of the photosensitive drum 61 after the toner image is transferred to the intermediate transfer belt 53. At this time, the photosensitive drum 61, holding the intermediate transfer belt 53, is positioned opposite the primary transfer roller 54 and moves towards... Figure 2The primary transfer roller 54, the cleaner unit 64, the belt charger 62, and the developer 63 are arranged in sequence around the photosensitive drum 61 in the direction of rotation of the photosensitive drum 61.

[0069] The intermediate transfer belt 53 includes, for example, a conductive, annular conveyor belt member. The intermediate transfer belt 53 is wound around the drive roller 55 and the driven roller 56 without slack, and thus, as the drive roller 55 rotates, it is transferred to… Figure 2 It rotates counterclockwise. Around the intermediate transfer belt 53, along the rotation direction of the intermediate transfer belt 53, the secondary transfer roller 57, the cleaner section 58, and the imaging sections 51 for each color of YMCK are arranged in sequence.

[0070] The fixing unit 6 fixes the toner image transferred to the paper P2. The fixing unit 6 includes: a heating roller 59 equipped with a halogen lamp or the like for heating to fix the toner image on the paper P2; and a pressure roller 60 that clamps the paper P2 together with the heating roller 59 and applies pressure to the paper P2. The heating roller 59 can also be heated by generating eddy currents on its surface through electromagnetic induction.

[0071] In MFP1, the paper feed tray is connected to the paper feed path R1. The conveying device for conveying paper P2 includes: an output roller 81, which outputs the paper P2 contained in the paper feed tray from the top layer to the paper feed path R1; a pair of feed rollers 82, which further conveys the output paper P2 to the paper feed path R1; a pair of conveying rollers 83, which longitudinally conveys the paper P2 supplied by the pair of feed rollers 82 on the main conveying path R0; and a skew correction roller 84, disposed downstream of the pair of conveying rollers 83 in the main conveying path R0, which conveys the paper P2 toward the transfer unit 5. A paper feed sensor 80 is provided in the paper feed tray for detecting the paper P2 output from the paper feed tray.

[0072] The main transport path R0 is the primary transport path for paper P2 in the image forming (printing) process. Each paper supply pallet has its own supply path R1. All supply paths R1 converge on the main transport path R0. Supply path R1 is an example of a transport path.

[0073] Paper P2, contained in the paper supply tray, is fed one sheet at a time from the top layer to the paper supply path R1 by the rotational drive of the guide roller 81 corresponding to the paper supply tray, and then fed to the main transport path R0 by the paper supply roller pair 82. The paper supply sensor 80 detects the paper P2 fed from the paper supply trays 4A to 4D to the paper supply path R1.

[0074] In the main transport path R0, paper P2, fed from the feed roller pair 82, is driven by the rotation of the transport roller pair 83 to the skew correction roller 84 positioned in front of the transfer section 5. The skew correction roller 84 uses the transfer section 5 to properly transfer the toner image onto the paper P2, so the paper P2 is transported to the transfer section 5 synchronously with the formation of the toner image in the transfer section 5. That is, when the recording paper is transported to the skew correction roller 84 by the transport roller pair 83, the skew correction roller 84 is stopped, so that the paper P2 relaxes and forms a loop. After the paper skew is corrected using this loop, it is transported to the secondary transfer roller 57.

[0075] In the main transport path R0, above the transport roller pair 83 (downstream in the transport direction), a transport sensor (recording paper detection unit) 85 is provided for detecting the paper P2 transported longitudinally by the transport roller pair 83. The skew correction roller 84 is an example of a positioning roller.

[0076] A paper sensor 500 is provided below the skew correction roller 84 (on the conveyor side of the rising flow). The paper sensor 500 includes a sensor, as described below. In the MFP1, the type of paper P2 can be detected based on the signal from the paper sensor 500. Based on the detection result of the type of paper P2, the MFP1 sets control conditions, i.e., processing parameters (such as the conveying speed of paper P2), for image formation of that paper P2.

[0077] MFP1 can detect the leading edge of paper P2 that has reached the skew correction roller 84 based on the signal from the paper sensor 500, and perform paper feeding and loop control in the main feed path R0 based on the timing of paper P2 reaching the skew correction roller 84 from the paper sensor 500.

[0078] At the very downstream end of the main transport path R0, a paper discharge roller pair 91 is configured to discharge the printed paper P2. The printed paper P2 is discharged into the paper discharge tray 7 by the rotational drive of the paper discharge roller pair 91. In the main transport path R0, below the paper discharge roller pair 91 (on the rising flow side of the transport direction), a paper discharge sensor 90 is configured to detect the rear end of the paper P2. Thus, the paper discharge sensor 90 detects the rear end of the paper P2, thereby confirming that the paper P2 has been properly discharged from the paper discharge roller pair 91 into the paper discharge tray 7.

[0079] <2. Hardware Structure>

[0080] Figure 3 This is a diagram showing the hardware structure of the MFP1. The MFP1 includes... Figure 3 The main control unit 10 of the structure shown controls the various parts that constitute the MFP1. This enables the execution of various actions within the MFP1 (such as printing on paper P2 and reading images from the original document P1).

[0081] The main control unit 10 includes a CPU (Central Processing Unit) 101 that performs various calculations and controls, a ROM (Read Only Memory) 102 that stores control programs, etc., a RAM (Random Access Memory) 103 that temporarily stores calculation data, an image processing unit 104 that generates image data as the basis for the toner image formed by the transfer unit 5, an image memory 105 that temporarily stores the image data obtained by the image processing unit 104, a communication I / F (interface) 106 that includes a wireless communication I / F 108, and an HDD (Hard Disk Drive) 107, which is an example of a non-volatile storage medium. The image processing unit 104 may include dedicated processor circuitry constituting the image processing engine, or it may include a combination of image processing programs and circuitry executed by the CPU 101.

[0082] The communication I / F106 is configured to control communication between the MFP1 and external devices, including circuitry such as a NIC (Network Interface Card). The communication I / F106 controls communication between the MFP1 via an external network 110 and a user-operable terminal 200 such as a personal computer. The network 110 includes various networks such as a LAN (Local Area Network) and the Internet. Furthermore, the wireless communication I / F108 of the communication I / F106 controls wireless communication between the MFP1 and a user-operable portable terminal 300.

[0083] According to the control program read from ROM 102, CPU 101 outputs signals to the respective control units of image reading control unit 113, exposure control unit 114, transfer control unit 115, fixing control unit 116, and transport control unit 118, which respectively drive the image reading unit 3, exposure unit 52, transfer unit 5, fixing unit 6, and paper feeding device 8. Therefore, signals are provided from main control unit 10 to the respective control units of image reading control unit 113, transfer control unit 115, and fixing control unit 116, so that MFP1 drives the image reading unit 3, exposure unit 52, transfer unit 5, and fixing unit 6 according to the specified actions. Signals are also provided from main control unit 10 to transport control unit 118, so that MFP1 drives the output roller 81, roller pairs 82, 83, 91, and skew correction roller 84 in the transport device to rotate. Motor 901 is a motor used to drive the various rollers for transporting recording paper in MFP1. The driving of various rollers can be achieved by the CPU 101 controlling the operation of the motor 901 via the conveying control unit 118.

[0084] In this embodiment, the MFP1 has an imaging unit 117 that forms an image of the paper P2 being transported to the transport path. The imaging unit 117 is configured to include an exposure unit 52, a transfer unit 5, a fixing unit 6 constituting the imaging unit 51, a motor 901, and exposure control units 114, transfer control units 115, fixing control units 116, and transport control units 118 that control them.

[0085] Paper sensor 500 is connected to CPU 101. CPU 101 controls the operation of paper sensor 500 and detects the type of paper P2 based on signals from paper sensor 500. Additionally, sensor unit 900, including various sensors present in MFP1, is connected to CPU 101. CPU 101 detects the state of various parts of MFP1 based on signals from sensor unit 900.

[0086] <3. Printing Process>

[0087] Next, the printing operation performed by MFP1 will be described below. When MFP1 receives an instruction to perform a printing operation from the operation panel 9 or an external terminal, in the main control unit 10, the CPU 101 reads the control program for the printing operation from the ROM 102 and begins the control operation for the printing operation. First, the CPU 101 drives the conveying device through the conveying control unit 118, thereby exporting the topmost paper P2 from the paper supply tray and sending it to the main conveying path R0.

[0088] In order to transfer the toner image onto the paper P2 that is being fed onto the main transport path R0, the CPU 101 provides control signals to the exposure control unit 114 and the transfer control unit 115, and drives the exposure unit 52 and the transfer unit 5. At this time, the CPU 101 provides the image signal read from the original P1 by the image reading unit 3 via the image reading control unit 113 or the image signal received from an external terminal via the input / output interface 106 to the image processing unit 104.

[0089] Therefore, in the image processing unit 104, image data for forming toner images of each of the Y, M, C, and K colors is generated based on the provided image signal and stored in the image memory 105. The image data of each of the Y, M, C, and K colors stored in the image memory 105 is read from the CPU 101 and provided to the exposure control unit 114. Therefore, the exposure control unit 114 drives the light-emitting element (not shown) in the exposure unit 52 according to the image data of each of the Y, M, C, and K colors, thereby forming an electrostatic latent image on the photosensitive drum 61 of each of the Y, M, C, and K colors. That is, the transfer control unit 115 drives the transfer unit 5, so in the image forming unit 51 of each of the Y, M, C, and K colors, laser light shines from the exposure unit 52 onto the surface of the photosensitive drum 61, which is charged by the charger 62, forming an electrostatic latent image corresponding to each of the Y, M, C, and K colors.

[0090] The charged toner, carried by the developer 63, moves to the surface of the photoreceptor drum 61, which forms the electrostatic latent image, thus forming a toner image on the photoreceptor drum 61, which serves as the first image carrier. Then, when the toner image on the surface of the photoreceptor drum 61 comes into contact with the intermediate transfer belt 53, it is transferred to the intermediate transfer belt 53 by the electrostatic force of the primary transfer roller 54. Therefore, an overlay of Y, M, C, and K colors is formed on the surface of the intermediate transfer belt 53, which serves as the second image carrier. On the other hand, any untransferred toner remaining on the photoreceptor drum 61 where the toner image was transferred to the intermediate transfer belt 53 is scraped off by the cleaner section 64 and removed from the photoreceptor drum 61.

[0091] When the leading edge of paper P2, conveyed on the main transport path R0, is detected by the paper sensor 500, the detection result is provided to the transfer control unit 115. The transfer control unit 115 then recognizes that paper P2 has reached the skew correction roller 84. The transfer control unit 115, in time with the timing of the toner image being transferred to the intermediate transfer belt 53, activates the skew correction roller 84. At this time, the toner image transferred to the intermediate transfer belt 53 is moved to the transfer position where it contacts the secondary transfer roller 57 by rotating the intermediate transfer belt 53 using the drive roller 55 and the driven roller 56, and transferred to the paper P2 conveyed to the transfer position on the main transport path R0. Any untransferred toner remaining on the intermediate transfer belt 53 after the toner image has been transferred to paper P2 is scraped off by the cleaner unit 58 and removed from the intermediate transfer belt 53.

[0092] Paper P2, with the toner image transferred at the contact point with the secondary transfer roller 57, is conveyed to the fixing section 6 based on the heating roller 59 and the pressure roller 60. At this time, the CPU 101 drives and controls the fixing section 6 via the fixing control unit 116 to fix the toner image on the paper P2 conveyed to the fixing section 6. That is, the fixing control unit 116 controls the heating operation of the heating roller 59 simultaneously with controlling the rotation of the heating roller 59 and the pressure roller 60.

[0093] Therefore, when the paper P2 carrying the unfixed toner image passes through the fixing clamping section of the fixing unit 6, it is heated by the heating roller 59 and pressed by the pressure roller 60, and the unfixed toner image is fixed onto the paper surface. Then, when the toner image is fixed (after single-sided printing), the paper P2 is conveyed to the paper discharge roller pair 91 and discharged into the paper discharge tray 7 by the paper discharge roller pair 91. At this time, the paper discharge sensor 90 detects the rear end of the paper P2, and the detection result is provided to the main control unit 10. Thus, the main control unit 10 confirms that the paper P2 has been discharged into the paper discharge tray 7 normally.

[0094] <4. Structure of the Paper Sensor 500>

[0095] Figure 4 This is a diagram illustrating the structure of the paper sensor 500. Figure 4 In the diagram, arrow R4 indicates the conveying direction of paper P2 in the main conveying path R0. The paper sensor 500 includes: an optical detection unit that outputs a signal based on optical detection; and an ultrasonic detection unit that outputs a signal based on ultrasonic detection.

[0096] (Optical Inspection Department)

[0097] Figure 5 This is an enlarged view of the optical detection unit within the paper sensor 500. The optical detection unit includes a photodetector 511 and light sources 512 and 513. The photodetector 511 includes, for example, a CCD (Charge Coupled Device) sensor. The light sources 512 and 513 include, for example, LED (Light Emitting Diode) elements.

[0098] With the main transport path R0 as a reference, the light source 512 is positioned on the same side as the light receiver 511. Figure 5 In the diagram, arrow AR13 represents the light emitted by light source 512, and arrow AR14 represents the light reflected from paper P2 and directed towards light receiver 511, which is part of the light represented by arrow AR13. Light receiver 511 detects the light output from light source 512 and reflected from paper P2 on the main transport path R0.

[0099] With the main transport path R0 as a reference, the light source 513 is positioned on the opposite side of the light receiver 511. Figure 5 In the diagram, region AR11 represents the light emitted by light source 513, and arrow AR12 represents the light that passes through paper P2 and is directed toward light receiver 511, which is part of the light represented by region AR11. Light receiver 511 detects the light emitted from light source 513 and arriving at light receiver 511 via the main transport path R0. When paper P2 exists between light receiver 511 and light source 513, light receiver 511 detects the light emitted from light source 513 and transmitted through paper P2.

[0100] The light receiver 511 outputs a signal (following the signal of the amount of light received by the light receiver 511) indicating the result of detecting light from the light source 512 and / or the light source 513 to the CPU 101. Based on the signal from the light receiver 511, the CPU 101 determines the timing of the leading edge of the paper P2 arriving in the paper sensor 500, detects the reference weight of the paper P2 in the paper sensor 500, and detects that the paper P2 in the paper sensor 500 is a specific type of sheet (e.g., a transparent sheet for an OHP (Overhead Projector)).

[0101] In this specification, the action performed by the optical detection unit to detect the tip of paper P2 is referred to as "the first action", and the action to detect the reference weight of paper P2 and / or a specific type of sheet is referred to as "the second action".

[0102] (Ultrasonic Testing Department)

[0103] Figure 6 This is an enlarged view of the ultrasonic detection unit within the paper sensor 500. The ultrasonic detection unit includes a transmitter 522 that emits ultrasonic waves. Additionally, the ultrasonic detection unit includes a receiver 521 that receives ultrasonic waves and outputs a signal corresponding to the intensity of the received ultrasonic waves.

[0104] exist Figure 6 In the diagram, arrow AR21 represents the ultrasonic wave output from transmitter 522. Arrow AR22 represents the ultrasonic wave attenuated by paper P2 after being represented by arrow AR21. Receiver 521 detects the ultrasonic wave output from transmitter 522. When paper P2 exists between receiver 511 and transmitter 522, receiver 521 detects the ultrasonic wave attenuated by paper P2 after being emitted by transmitter 522.

[0105] The receiver 521 outputs a signal to the CPU 101 based on the intensity of the detected ultrasonic wave. The CPU 101 detects the presence of the front end of the paper P2 between the receiver 521 and the transmitter 522 based on the signal from the receiver 521, and also detects the type of paper P2 (envelope, recording paper in a state of overlapping two or more sheets, etc.).

[0106] That is, in this embodiment, the optical detection unit and the ultrasonic detection unit can respectively perform the operation for detecting the front end of the paper P2, and perform the detection of the reference weight of the paper P2 in order to detect the type of the paper P2.

[0107] MFP1 can be like Figure 4 The device may have both an optical detection unit and an ultrasonic detection unit, or it may have only one of them.

[0108] exist Figure 4 In this configuration, the optical detection unit is positioned upstream of the ultrasonic detection unit on the paper P2 transport path. Alternatively, the ultrasonic detection unit may also be positioned upstream of the optical detection unit.

[0109] CPU101 can also use signals from either the optical detection unit or the ultrasonic detection unit to detect the leading edge of paper P2 in the paper sensor 500, and use signals from either unit to detect the type of paper P2. In this case, CPU101 can also use the downstream detection unit to detect the leading edge of paper P2, and use the upstream detection unit to detect the type of paper P2 based on the detection of the leading edge of paper P2.

[0110] <5. Modular Structure of Image Forming Apparatus>

[0111] Figure 7 This is a diagram illustrating an example of the module structure of MFP1.

[0112] like Figure 7 As shown, in this embodiment, the main control unit 10 of the MFP1 can be equipped with one or more modules corresponding to the paper type detection unit 190, paper type selection unit 191, image forming control unit 192, setting unit 193 having a first setting unit 196, external communication control unit 194 controlling communication with terminal 200 or 300 via communication I / F 106, notification control unit 195, and designation unit 197 by executing a program through the CPU 101. Furthermore, several of these modules can also be installed through a combination of programs and circuits.

[0113] The paper type detection unit 190 acquires data indicating the type of paper P2 being transported along the conveying path based on the detection signal from the paper sensor 500. More specifically, the paper type detection unit 190 compares the reference weight of paper P2 determined based on the signal from the paper sensor 500 with a threshold, and based on the comparison result, detects, for example, "thin paper," "plain paper," "thick paper," "envelope," "recycled paper," etc., as the paper type, but the types of paper that can be detected are not limited to these.

[0114] In the case of "different types", the paper type selection unit 191 determines the "select type" from "detected type" and "specified type" according to the setting data 92 and priority determination data 93 described later, and outputs the determined "select type" to the image forming control unit 192 and the notification control unit 195.

[0115] The image forming control unit 192 controls each part of the imaging unit 117 in such a way that an image is formed on the paper P2 transported in the transport path in the MFP1 according to task 50. Normally, the image forming control unit 192 controls the operation of each part of the imaging unit 117 according to task 50 in such a way that image formation is performed on the paper P2 of paper type 554 as described later in task 50. In a "different situation", the image forming control unit 192 controls the operation of each part of the imaging unit 117 according to task 50 in such a way that image formation is performed on the paper P2 of the "selected type" from the paper type selection unit 191. In a "different situation", the image forming control unit 192 controls each part of the imaging unit 117 according to the processing parameters 94 described later. At this time, the image forming control unit 192 can also control the operation by selecting a paper tray that contains the paper P2 corresponding to the "selected type" from the paper trays that can supply paper P2 to the transport path and switching to the paper tray for selecting the paper tray.

[0116] The setting unit 193 acquires user settings associated with image formation from user operations received via the operation panel 9. The setting unit 193 saves the acquired user settings as setting data 92 (described later). The setting unit 193 can also acquire these user settings based on data received from the terminal 200 or 300 by the external communication control unit 194. The first setting unit 196 of the setting unit 193 individually sets the data about the paper feed trays in the setting data 92 for each paper feed tray.

[0117] In an "abnormal situation," the notification control unit 195 outputs a notification based on the "selected type" from the paper type selection unit 191 to the operation panel 9. The operation panel 9 outputs the notification from the notification control unit 195 as an image to the display 9A to prompt the user. In this embodiment, the notification from the notification control unit 195 is not limited to a visual notification via the display 9A; it can also be an audible notification using a speaker (not shown). Furthermore, the notification control unit 195 can also forward the notification to the user's terminal 200 or 300 via the external communication control unit 194, allowing these terminals to output the notification visually or audibly. For example, a portable terminal 300 can also report the received notification to the user by vibrating itself.

[0118] The designation unit 197 receives, for example, the designation of the type of sheet contained in each paper supply tray from the user via the operation panel 9. The designation unit 197 outputs the received information to the setting unit 193.

[0119] <6. Task>

[0120] Figure 8 This diagram schematically illustrates an example of the structure of task 50 in this embodiment. Task 50, as an example, represents a printing task. Task 50 includes a task ID (identifier) ​​551 for identifying the task, a user ID 552 for identifying the user of the task, and PJL (Printer Job Language) data 553 and PDL (Page Description Language) data 556 for instructing the image forming apparatus to perform image forming processing. PJL data 553 is command data that does not directly affect PDL data 556. For example, in addition to commands related to binding, punching, etc., it also includes paper type 554 specified for printing, and tray ID 555 specifying the paper supply tray for supplying paper to the transport path.

[0121] The image processing unit 104 expands the PDL data 556 of task 50 as bitmap data in the RAM of the storage unit 160. The imaging unit 117 performs printing processing for each color of paper P2 according to the bitmap data (PDL data 556) expanded by the image processing unit 104. The image processing unit 104 also expands the image data read from the original by the image reading unit 3 into bitmap data, and the imaging unit 117 performs printing processing for each color of paper P2 according to the bitmap data expanded for the original.

[0122] The designation unit 197 can obtain the paper type 554 from the user's task 50, use the obtained paper type 554 as the user's designated type, and output it to each part. Additionally, the designation unit 197 can obtain the tray ID 555 from the user's task 50, retrieve the paper type 923 associated with the tray ID 922 that matches the obtained tray ID 555 from the setting data 92, and output the retrieved paper type 923 as the user's designated type to each part. Thus, the designation unit 197 can obtain the user's designated type not only from the operation panel 9, but also from the paper type 554 or the tray ID 555 of task 50.

[0123] <7. HDD Information and the Actions of Each Part>

[0124] Figure 9 This is a diagram schematically illustrating an example of information stored in HDD107 in this embodiment. Figure 10 This is a diagram showing an example of the setting data 92 in this embodiment.

[0125] Figure 11 This is a diagram showing an example of the priority determination data 93 in this embodiment. Figure 12 This is a diagram showing an example of the processing parameters 94 in this embodiment. Figure 13 This is a diagram illustrating an example of a paper type combination 95 according to this embodiment.

[0126] Reference Figure 9 HDD107 stores system programs including OS (Operating System) 90 and application programs 910, as well as various data. Application program 910, along with the control program that controls MFP1, includes implementation... Figure 7 The programs for various modules of the main control unit 10. Figure 7 For example, the setting program 911 and task processing program 912 of the module implementing the setting unit 193 and the image forming control unit 192 in the module implementing the main control unit 10 are shown, but are not limited to these programs.

[0127] The data stored in HDD107 includes Figure 10 Setting data 92 Figure 11 Priority judgment data 93 Figure 12 Processing parameters 94 and Figure 13 The paper types are 95.

[0128] Reference Figure 10The configuration data 92 pertains to each user and includes a user ID 921 and data associated with that user ID 921. The data associated with the user ID 921 pertains to one or more paper trays and includes a tray ID 922 for identifying the tray, the paper type 923 of the paper stored in the tray, selection settings 924, priorities 925, and persistence 926. In this embodiment, the user can store paper in each tray, so the user can set the paper type 923 for each tray. Figure 10 The configuration data 923 pertains to the individual paper supply trays of the MFP1, which has one or more paper supply trays. Paper type 923 includes, for example, thin paper, plain paper, plain paper+, thick paper 1, and envelopes, but is not limited to these; for example, recycled paper may also be included. Additionally, the configuration data 92 is associated with the user ID 921 and includes notification 927.

[0129] In the "Heterogeneous Situation" setting, selection setting 924 indicates the selective specification of which paper type, from "Detection Type" and "Specified Type," should continue to be implemented for image formation. Continuity 926 uses a value of 1 or 0 to indicate whether the corresponding selection setting 924 is applied only to one print (e.g., the execution of one task 50) or applied to all prints of the user's task 50, i.e., multiple tasks (i.e., continuous application).

[0130] Priority 925, in the context of "different situations," refers to matters that should be determined in order to prioritize one of the "detection type" and the "designated type" over the other in designating the type of paper used for continuing image formation. Priority 925 includes, for example, image quality, productivity, and energy saving, but is not limited to these.

[0131] In the case of "different situations" where "image quality" is prioritized in priority item 925, the paper type selection unit 191 selects the paper type that is determined to achieve image formation with better image quality. Additionally, if "productivity" is prioritized in priority item 925, the paper type that is determined to produce more sheets per unit time is selected. Furthermore, if "power saving" is prioritized, the paper type that consumes less power during image formation is selected. In this embodiment, "image quality" is based on the transfer current supplied to the photosensitive drum 61 or the fixing temperature, which is the heating temperature of the heating roller 59 of the fixing unit 6. "Productivity" is based on the system speed, which is the speed of the transported paper P2, or the paper spacing, which represents the interval between transported paper P2. "Power saving" is based on the electrical power consumed by each part during image formation.

[0132] Reference Figure 11Priority data 93 includes multiple items 931 used to determine priority, and priorities 932 associated with each item 931, including those between paper types. Items 931 include, for example, productivity during image formation, image quality, and energy saving. Figure 11 In the ranking, productivity is prioritized from highest to lowest as follows: Thin paper > Plain paper (ECO) > Plain paper > Thick paper 1 > Thick paper 2 > Thick paper 3 > Thick paper 4. Regarding image quality, "Detection type" has the highest priority across all paper types. Energy saving is prioritized from highest to lowest as follows: Thin paper > Plain paper (ECO) > Plain paper > Thick paper 1 > Thick paper 2 > Thick paper 3 > Thick paper 4. This ranking is provided as an example. Figure 11 ECO (Even More Organic) paper indicates recycled paper.

[0133] In MFP1, the fixing temperature for forming an image on thin paper is lower than that for plain paper, and the transport speed is also lower. Therefore, according to... Figure 11 Image formation on thin paper is more energy-efficient than image formation on ordinary paper, and image formation on ordinary paper is more energy-efficient than image formation on thick paper.

[0134] In an "anomaly scenario," the paper type selection unit 191 determines setting data 92 associated with user ID 921, which matches user ID 552 of task 50. Within the determined setting data 92, it identifies the item represented by priority item 925 corresponding to paper type 923, which matches paper type 554 of task 50. The paper type selection unit 191 retrieves the priority 932 among paper types associated with the item 931 from priority determination data 93 based on the determined item. The paper type selection unit 191 compares the priority order of "detection type" and "designated type" in the retrieved paper type priority 932, determining the one with the higher priority as the "selected type." For example, if the determined item's priority 925 represents productivity, then... Figure 11 When the "detection type" and "selection type" are plain paper and thick paper 1, the paper type selection unit 191 selects the "detection type" with higher productivity and outputs the "selection type" indicating plain paper. If the priority 925 corresponding to the paper type 923 that is consistent with the paper type 554 of task 50 is "-", the paper type selection unit 191 outputs the paper type indicated by the corresponding selection setting 924 as the "selection type".

[0135] Notification 927 specifies whether to output a notification to the user in "heterogeneous situations" using a value of 1 or 0. More specifically, Notification 927 indicates whether to output a notification to the user using a value of 1 or 0 when the "selected type" and "detection type" differ significantly in order to continue image formation. The degree to which the "selected type" differs significantly from the "detection type" is represented by a deviation degree. An example of the deviation degree at which a notification should be output is... Figure 13 The paper type combination is represented by 95.

[0136] Reference Figure 13 Group 951, corresponding to the degree of deviation (selection type, detection type) of the notification to be output, is shown for example as (thin paper, other paper types) and (envelope, plain paper). Therefore, in the "different situation" when the image is formed based on task 50, if the notification 927 set by the user of task 50 is "1", the notification control unit 195 searches for the paper type combination 95 based on the combination of "selection type" from the paper type selection unit 191 and "detection type" from the paper type detection unit 190. If the search result determines that the combination corresponds to any group 951, the notification control unit 195 outputs a notification.

[0137] Reference Figure 12 The processing parameters 94 include multiple paper types 941, and each paper type 941 is associated with parameters 942 related to image formation processing. Parameters 942 include, for example, fixing temperature, transport speed, and paper spacing during transport, but the types of parameters are not limited to these. When forming an image on a "specified type" or "selected type" paper, the image forming control unit 192 retrieves the parameters 942 associated with the paper type 941 that matches the paper type from the processing parameters 94, and controls each part of the imaging unit 117 according to the retrieved parameters 942.

[0138] Reference Figure 10 The selection settings 924, priorities 925, continuity 926, and notifications 927 constitute user setting data 928 for enabling the imaging unit 117 to continue performing image formation (printing) under "abnormal circumstances".

[0139] In this embodiment, the setting unit 193 receives information related to image formation. Figure 10 The user's setting data 92 is shown. The first setting unit 196 of the setting unit 193 handles the setting of each paper supply tray, including the selection setting 924 of the user setting data 928, the priority 925, and the continuity 926.

[0140] <8. Situations where notifications are output>

[0141] In this embodiment, the paper types in group 951 vary greatly, so when image forming continues, there may be combinations that could become drawbacks for the user or mechanical defects in the MFP1. For example, combinations that could lead to a decrease in image quality, a decrease in productivity such as the number of sheets printed per unit time, etc.

[0142] For example, when a user places thin paper on top of thick paper in a paper supply tray containing thick paper, the paper type 554 for the user's task 50 indicates thin paper, so MFP1 performs printing according to the processing parameters for thin paper. When there is no thin paper in the paper supply tray during printing, and thick paper is supplied from the tray to the transport path, i.e., when an "abnormal situation" is detected, the thick paper is printed using the processing parameters for thin paper. In this case, the combination of (thin paper, thick paper) corresponds to group 951, resulting in poor fixing of the toner for thick paper, and the toner for thick paper may fall off inside and outside the equipment, potentially causing defects in MFP1. Furthermore, when thin paper is supplied to the transport path without thick paper during printing, and printing is performed according to the processing parameters for thick paper, defects such as paper tangling during fixing may occur. In this embodiment, when an "abnormal situation" with a high probability of causing such defects is detected, a notification is output to the user, thereby prompting the user to respond to or prevent the defect. Furthermore, in this embodiment, even in such an "abnormal situation," the processing parameters can be dynamically changed to processing parameters suitable for the type of paper being detected, and printing can continue. This avoids the adverse conditions described above. Alternatively, the image forming control unit 192 can also be configured to avoid this adverse condition by switching the processing parameters to processing parameters for other paper types with a lower degree of dissociation from the specified type than the type being detected, or by switching the paper feed tray to supply paper types with parameters close to the values ​​of the processing parameters for the specified type to the transport path.

[0143] <9.UI>

[0144] Figures 14-18 This is a diagram showing an example of a UI screen in this embodiment. The setting unit 193 causes the display 9A to display a screen for accepting user settings including paper type, and the setting unit 193 stores setting data 92 based on user operations on the screen.

[0145] Figure 14 A screen showing the settings for accepting the paper type 923 contained in each paper supply tray. Figure 14 For example, when configuring a manual paper feed tray, the user can select icon 142 to set the paper type stored in the tray to plain paper. The user can similarly configure the paper type for other paper feed trays. Additionally, in... Figure 14 The screen displays an icon 141 indicating that the MFP1 uses a "dissimilar paper type detection" mode to detect the paper type using the paper sensor 500 during image formation. The MFP1 has an externally operable toggle switch (not shown). When the toggle switch is activated, the paper sensor 500 is set to detect the paper type, and the "dissimilar paper type detection" mode is set in the MFP1. Furthermore, the method for setting the dissimilar paper type detection mode for the MFP1 is not limited to operating the toggle switch; for example, it could be a setting from the UI screen displayed on the monitor 9A.

[0146] Figure 15 The screen shows the settings for acceptance selection 924 and continuity 926 for each paper supply tray. Figure 15 The screen is the settings screen for the manual paper feed tray, which includes, for example, displays... Figure 14 The screen displays message 151 regarding the "abnormal situation" detection mode for manual paper feed trays, icons 152 and 153 for selecting either "Specified Type" or "Detection Type" as a selection setting 924, and icons 154 and 155 for setting continuity 926. Other paper feed tray users can also... Figure 15 The same settings apply.

[0147] Figure 16 The screen shows the settings for handling priority 925 for each paper supply tray. Figure 16 The screen, for example, is the settings screen for the manual paper feed tray, which includes information such as... Figure 14 The screen displays a message 161 regarding a "situational" detection mode for the manual paper feed tray, an icon 164 for selecting priority items 925, and a drop-down menu 165 indicating available settings. Other paper feed tray users can also interact with... Figure 16 The same settings apply.

[0148] Figure 17 The screen shows the settings operation for receiving notification 927 from the user. Figure 17 The screen includes checkbox 175, which is used to set notification 927 to 1.

[0149] Figure 18 yes Figure 14 A variation of the display includes icon 181, which is used to set the type of paper contained in the manual paper feed tray when the "abnormal situation" detection mode is not set. Figure 18 In the middle, user operation icon 181 sets the paper type of the manual paper feed tray to plain paper. For other trays, users can also... Figure 18The same procedure is followed to set the paper type.

[0150] In this embodiment, MFP1 will Figures 14-18 The time when the UI prompts the user to obtain the setting data 92 includes, for example, when the user sets (contains) the paper in the tray, but is not limited to this time. For example, as long as the setting can be performed before printing, such as when the user sets the paper type for the MFP1 or when the MFP1 is installed, the time when setting the setting data 92 is not limited. Figures 14-18 The UI can also be switched for each user.

[0151] <10. Flowchart Setup>

[0152] Figure 19 This is a flowchart of the user-defined process in this embodiment. This process is implemented by the CPU 101 primarily executing the setting program 911. First, in step S1 of the process, the CPU 101 detects a situation where there is no paper in the tray (empty) based on the signal from the sensor unit 900. In step S3, the CPU 101 detects a situation where paper is contained in the empty paper feed tray based on the signal from the sensor unit 900. Here, for example, it is detected that paper is contained in the manual paper feed tray.

[0153] In step S5, CPU101 causes Figure 14 The UI screen is displayed on monitor 9A, and the user ID is processed (step S6). CPU 101 when... Figure 14 When the screen displays a user operation but does not accept a paper type setting operation, i.e., when the user does not perform a setting operation (no in step S7), the CPU 101 detects the paper type contained in the manual paper feed tray based on the signal from the sensor unit 900 (step S10). The CPU 101 sets the detected paper type to paper type 923 of the manual paper feed tray.

[0154] CPU101 when Figure 14 When a user accepts a setting operation on the UI screen (yes in step S7), the CPU 101 sets the paper type based on the accepted user operation to paper type 923 of the manual paper feed tray (step S9). The CPU 101 then... Figure 15 The UI screen is displayed on the monitor 9A. It is determined whether the user operation received from the UI screen is a temporary (only for this printing) operation of icon 154 (step S11).

[0155] When CPU101 determines that the accepted user operation is the operation of icon 154 (yes in step S11), it sets the continuity 926 of the manual paper feed tray to "1" (step S13). When CPU101 determines that the accepted user operation is not the operation of icon 154 (no in step S11), it normally sets the continuity 926 of the operation that is icon 155 to "0".

[0156] exist Figure 19 In this variation, the continuity 926 can be set to "00" or "01". More specifically, when the received user operation indicates that image formation should continue with the "specified type" represented by the paper type 554 of task 50 after the manual paper tray has been emptied, the CPU 101 sets the continuity 926 to "01" (step S17), and when the received user operation indicates that image formation should continue with the "specified type" represented by the paper type 554 of task 50 before the manual paper tray has been emptied, the continuity 926 is set to "00" (step S19).

[0157] Most users generally expect to print under the optimal conditions of the MFP1, corresponding to the paper type, based on image quality and reliability. However, according to users, sometimes even when thicker paper is desired for image quality, they tend to use high-yield plain paper instead. Figure 19 In a variation, a user (individual) can apply printing based on their own specified paper type only to the printing of the immediately following task 50 (step S13). This method of temporarily using the user-specified paper type 554 as the selection type supports the use of MFP1 in accordance with the expectations of various users, preventing any impact on image formation for other users related to that user's paper type specification.

[0158] In addition, Figure 19 In this process, even in abnormal situations, the user-specified paper type 554 of task 50 can be continuously set as "selected type" (steps S17 and S19). Furthermore, the duration of this continuation can be specified as before (step S19) or after the paper tray P2 is emptied (step S17). Therefore, even in the event of an abnormal situation, regardless of the detected type, printing can continue using the specified paper type P2 that matches the user's expectations. Additionally, the user can set the length of this continuation period.

[0159] <11. Flowchart of Task Execution>

[0160] Figure 20This is a flowchart illustrating the process of performing the task of this embodiment. This flowchart is implemented by an application program 910, including a task handler 912, executed by the CPU 101.

[0161] Reference Figure 20 The CPU 101 determines whether it has accepted the task 50 operated by the user based on the operation panel 9 or the task 50 transferred from the terminal 200 or 300 (step S20). When it is determined that the task 50 has not been accepted (no in step S20), the CPU 101 repeats step S20, but when it is determined that the task 50 has been accepted (yes in step S0), it proceeds to step S21.

[0162] In step S21, CPU101 determines whether an anomaly detection mode is set in MFP1 (step S21). If it is determined that no anomaly detection mode is set (no in step S21), in step S23, CPU101 controls each part of MFP1 to perform task 50 as usual.

[0163] When the CPU 101 determines that a detection mode with an unusual situation is set (yes in step S21), in step S25, the CPU 101 controls each part of the MFP1 to execute task 50. During image formation based on the execution of task 50, the CPU 101 outputs the detection type according to the output from the paper sensor 500 (step S27).

[0164] CPU 101 compares the specified paper type 554 of Task 50 with the detected type, and determines whether an anomaly is detected based on the comparison result (step S29). When CPU 101 determines that an anomaly is detected (yes in step S29), it determines the selected paper type for paper P2 to continue image formation based on the setting data (paper type 923, selection setting 924, priority 925, continuity 926, and notification 927) associated with the user ID 921 that matches the user ID 552 of Task 50, and continues to perform image formation (printing) based on Task 50 on paper P2 of the determined selected type (step S31). When CPU 101 determines that no anomaly is detected (no in step S29), CPU 101 does not implement the selection type decision and continues to execute Task 50 as is (step S33). After that, CPU 101 ends the execution of Task 50 (step S35), and the series of processes ends.

[0165] <12. Terminal Structure>

[0166] Figure 21 This is a diagram that schematically illustrates an example of the structure of the terminal 200 in this embodiment. (Refer to...) Figure 21The terminal 200 includes a CPU 20, a display 23, an operation panel 25 for user input of information, a storage unit 26, and a communication controller 27, corresponding to a control unit for controlling the terminal 200. The storage unit 26 includes a ROM 21, RAM 22, a memory 28 for storing programs and data executed by the CPU 20, and a reader / writer 29. They communicate with each other via an internal bus. The display 23 and operation panel 25 can also be provided as an integrated touch panel 24. The communication controller 27 includes communication circuitry such as a NIC or LAN circuit for communication between the terminal 200 and MFP1 or other terminals. The reader / writer 29 is configured to be able to removably install a memory card 29A, such as an SD card, as an example of an external storage medium. The reader / writer 29 reads programs or data from the installed memory card 29A, stores the read programs or data in the storage unit 26, and executes it by the CPU 20.

[0167] The method of setting the above-described setting data 92 to MFP1 is not limited to the method of using the operation panel 9 of MFP1. For example, the user can set it by operating the terminal 200. In this embodiment, MFP1 can be used as a web server and the terminal 200 can be used as a client of the web server, and actions can be performed separately. The CPU 101 of MFP1 communicates with the browser 221 of the terminal 200, and the browser 221 has functions for accepting... Figures 14-18 The user-operated UI screen of the web page is sent to terminal 200. Terminal 200 uses browser 221 to display the received web page as a browser screen on the display 23 of touch panel 24. Terminal 200 uses browser 221 to send data based on the user operation received via the browser screen to MFP1, which acts as a web server. MFP1 saves the data received from terminal 200 as setting data 92.

[0168] Not limited to terminal 200, portable terminal 300 can also act as a client of the web server, just like terminal 200. Therefore, MFP1 can save the data received from the browser of terminal 300 as setting data 92.

[0169] The module equivalent to browser 221 can be included in the printer driver program of terminal 200, or it can be provided as a program to enhance the printer driver; the provision of this module is not limited.

[0170] Additionally, the printer driver program on terminal 200 or terminal 300 can also provide prompts. Figures 14-18The UI screen retrieves setting data 92 from the user and then transfers the retrieved setting data 92 to MFP1.

[0171] The terminal 200 or terminal 300 in this embodiment is an example of an information processing terminal that communicates with an image forming apparatus (MFP1) that performs image forming on a sheet on a transport path. The terminal 200 or 300 includes a setting unit 193 that receives user settings (setting data 92) associated with image forming and a transmitting unit (communication controller 27) that transmits the user settings received by the setting unit to the image forming apparatus. The user settings include user setting data 928 for causing the image forming apparatus to continue performing image forming if the type of sheet on the transport path differs from the type of sheet specified by the user.

[0172] Furthermore, in this embodiment, the paper P2 whose paper type is detected is not limited to the paper P2 conveyed on the transport path, as long as it is the kind of paper P2 that forms an image by the image forming apparatus. For example, the image forming apparatus can be configured such that a paper sensor 500 is provided in the tray that supplies the paper P2 to the transport path. In this case, when the start button on the operation panel 9 is operated or the execution of the task begins, the CPU 101 can also detect the paper type of the paper P2 (i.e., the paper P2 for forming the image) in the tray based on the detection of the paper sensor 500 in the tray, and continue to perform the image forming described above depending on whether the detected paper type is different from the paper type specified by the user.

[0173] <13. Program>

[0174] Including the use of MFP1 settings Figures 14-18 The application program 910, which includes the UI screen setting data 92 and the program that executes task 50 according to the setting data 92, can also be recorded on a computer-readable storage medium such as the external storage medium 120 attached to the MFP1, which is a computer equipped with a processor, and provided as a program product. Alternatively, the program can be recorded on a recording medium such as the HDD 107 built into the computer. In addition, the program can also be provided by downloading via network 110 or wireless communication. The program can be executed by one or more processors such as CPU 101, or by a combination of a processor and circuits such as ASIC (Application Specific Integrated Circuit) or FPGA (Field-Programmable Gate Array).

[0175] Used for setting MFP1 Figures 14-18The UI settings data 92 of the terminal 200 and its program (e.g., browser 221) can also be recorded on a computer-readable storage medium such as a memory card 29A attached to the terminal 200, which is a computer, and provided as a program product. Alternatively, the program can be recorded on a recording medium such as a hard disk built into the computer's memory 28. In addition, the program can also be provided by downloading via network 110 or wireless communication. The program can be executed by one or more processors such as CPU 20, or a combination of a processor and circuits such as ASIC or FPGA.

[0176] <14. Advantages>

[0177] In this embodiment, even if the paper type detected by the paper type detection unit 190 differs from the paper type 554 (specified type) specified by the user for task 50 during image formation, resulting in an anomaly, the execution of task 50 is not interrupted, and the MFP1 continues to execute task 50 according to the saved user setting data 92. Therefore, the user does not need to pay attention to the state of the MFP1 after starting task 50 (i.e., whether an anomaly is detected), improving user convenience. Furthermore, even if an anomaly is detected while executing one task 50, the MFP1 can execute subsequent tasks 50 without interrupting the execution of task 50, improving productivity related to image formation in the MFP1.

[0178] The embodiments disclosed herein should be considered illustrative in all respects and not limiting. The scope of the invention is not shown by the foregoing description but by the claims, and is intended to include all modifications within the meaning and scope of the claims.

Claims

1. An image forming apparatus characterized by comprising: have: The forming component performs image forming on the sheet being transported along the transport path according to the user's task; A detection component detects the type of sheet material from which the image is formed; The specified component is the type of sheet used for image formation according to the task, as specified by the user. as well as The setting component prioritizes either the type of sheet detected by the detection component before image formation or the type of sheet specified by the user and handled by the designation component. During the image formation process, if the type of sheet detected by the detection component differs from the type of sheet specified by the user and handled by the designation component... If the setting component is configured to prioritize the type of sheet material detected by the detection component, then the forming component continues to perform the image forming based on the setting of the type of sheet material detected by the detection component. If the setting prioritizes the type of sheet specified by the user and handled by the designated component, then the forming component continues to perform the image forming based on the setting of the type of sheet specified by the user and handled by the designated component.

2. The image forming apparatus according to claim 1, wherein, The setting component includes a UI component, i.e., a user interface component. User settings associated with the image are processed based on user actions performed on the UI component.

3. The image forming apparatus according to claim 1, wherein, When the designated component receives the designation of the sheet type from the user, the setting component operates in a manner that accepts the settings for continuing the image formation process.

4. The image forming apparatus according to claim 1, wherein, The image forming apparatus further includes a supply unit configured to receive a sheet supplied to the transport path. When the user places the sheet into the supply component, the setting component operates in a manner that accepts settings for continuing the image formation process.

5. The image forming apparatus according to claim 1, wherein, For each of the multiple users of the image forming apparatus, the setting unit receives a setting from that user to enable the forming unit to continue performing the image forming.

6. The image forming apparatus according to claim 1, wherein, The image forming apparatus further includes one or more supply components configured to receive sheets supplied to the transport path. The designated component has: a designated component for each of the one or more supply components, specifying the type of sheet received by the user and housed within that supply component. The setting unit has a first setting unit that, with respect to each of the supply units, accepts settings for causing the forming unit to continue performing the image forming. The user settings handled by the first setting component include settings for causing the forming component to continue performing the image forming if the type of sheet detected by the detection component is different from the type of sheet specified by the user regarding the supply component that supplies the sheet to the transport path.

7. The image forming apparatus according to claim 1, wherein, The image forming apparatus also includes a communication component that communicates with an information processing terminal. The setting component receives user settings associated with the image from the information processing terminal via the communication component, thereby accepting the user settings.

8. The image forming apparatus according to claim 1, wherein, The image forming apparatus further includes a component that, when performing image forming, selects a type of sheet for continuing image forming according to the setting if the type of sheet detected by the detection component differs from the type of sheet specified by the user and received by the designation component. The image forming apparatus sets the image forming processing control conditions based on the difference between the type of sheet detected by the detection component and the selected type of sheet.

9. A computer-implemented method, characterized by, include: The specified steps are defined by the type of sheet used for image formation according to the task, as specified by the user. The acceptance step is a user-defined setting step that prioritizes the type of sheet detected in the detection step before the image is formed, or prioritizes the type of sheet specified by the user in the specified step. The image forming step is performed on the sheet being transported along the transport path of the image forming apparatus according to the user's task; as well as A detection step for identifying the type of sheet material forming the image. When performing the image formation, if the type of sheet detected in the detection step is different from the type of sheet specified by the user in the acceptance step,... If the setting step prioritizes the type of sheet material detected in the detection step, then the forming step continues to perform image formation based on the setting of the type of sheet material detected in the detection step. If the setting prioritizes the type of sheet specified by the user in the designated step, then the forming step continues to perform the image forming based on the setting of the type of sheet specified by the user in the designated step.

10. The method according to claim 9, wherein, The image forming apparatus has a UI component, i.e., a user interface component. In the step of accepting the user settings, the user settings associated with the image are accepted based on the user operation on the UI component.

11. The method according to claim 9, wherein, In the step of accepting the specified designation, when accepting the designation of the sheet type from the user, in the step of accepting the user settings, the settings for continuing to perform the image formation are accepted.

12. The method according to claim 9, wherein, The image forming apparatus further includes a supply unit configured to receive a sheet supplied to the transport path. When the user houses the sheet in the supply component, during the step of accepting the user settings, the settings for continuing the image formation are accepted.

13. The method according to claim 9, wherein, In the step of accepting the user settings, for each of the multiple users of the image forming apparatus, the user accepts a setting for continuing the image forming process in the step of performing the image forming.

14. The method according to claim 9, wherein, The image forming apparatus further includes one or more supply components configured to receive sheets supplied to the transport path. The specified steps include, with respect to each of the one or more supply components, the specified steps from the user accepting the type of sheet housed in that supply component. The step of accepting the user settings includes a step of accepting a first user setting for each of the supply components, the first user setting being a setting for continuing the image formation process in the step of performing the image formation. The first user setting includes a setting to allow image formation to continue in the step of image formation if the type of sheet detected in the detection step is different from the type of sheet specified by the user for the supply component that supplies the sheet to the transport path.

15. The method according to claim 9, wherein, The image forming apparatus also includes a communication component that communicates with an information processing terminal. In the step of accepting the user settings, the user settings associated with the image are received from the information processing terminal via the communication component, thereby accepting the user settings.

16. The method according to claim 9, wherein, The method further includes the following step: when performing the image formation, if the type of sheet detected in the detection step is different from the type of sheet specified by the user in the acceptance step, a type of sheet is selected for continuing the image formation according to the settings. Based on the difference between the type of sheet detected in the detection step and the selected type of sheet, the processing control conditions for image formation are set.

17. A computer-readable recording medium storing a program, said program being executed by a computer, characterized in that, The program causes the computer to execute: The specified steps are defined by the type of sheet used for image formation according to the task, as specified by the user. The acceptance step is a user-defined setting step that prioritizes the type of sheet detected in the detection step before the image is formed, or prioritizes the type of sheet specified by the user in the specified step. The image formation steps are performed on the sheet being transported along the transport path according to the user's instructions; as well as A detection step for identifying the type of sheet material forming the image. When performing the image formation, if the type of sheet detected in the detection step is different from the type of sheet specified by the user in the acceptance step,... If the setting step prioritizes the type of sheet material detected in the detection step, then the forming step continues to perform image formation based on the setting of the type of sheet material detected in the detection step. If the setting prioritizes the type of sheet specified by the user in the designated step, then the forming step continues to perform the image forming based on the setting of the type of sheet specified by the user in the designated step.

18. The computer-readable recording medium storing a program as claimed in claim 17, wherein, The computer has a UI component, i.e., a user interface component. In the step of accepting the user settings, the user settings associated with the image are accepted based on the user operation on the UI component.

19. The computer-readable recording medium storing a program as claimed in claim 17, wherein, In the step of accepting the specified designation, when accepting the designation of the sheet type from the user, in the step of accepting the user settings, the settings for continuing to perform the image formation are accepted.

20. The computer-readable recording medium storing a program as claimed in claim 17, wherein, The computer also includes a supply component configured to receive sheets supplied to the transport path. When the user houses the sheet in the supply component, during the step of accepting the user settings, the settings for continuing the image formation are accepted.

21. The computer-readable recording medium storing a program as claimed in claim 17, wherein, In the step of accepting the user settings, for each of the multiple users of the computer, the user accepts the settings for continuing the image formation process in the step of performing the image formation.

22. The computer-readable recording medium storing a program as described in claim 17, wherein, The computer also includes one or more supply components configured to receive sheets supplied to the transport path. The specified steps include, with respect to each of the one or more supply components, the specified steps from the user accepting the type of sheet housed in that supply component. The step of accepting the user settings includes a step of accepting a first user setting for each of the supply components, the first user setting being a setting for continuing the image formation process in the step of performing the image formation. The first user setting includes a setting to allow image formation to continue in the step of image formation if the type of sheet detected in the detection step is different from the type of sheet specified by the user for the supply component that supplies the sheet to the transport path.

23. The computer-readable recording medium storing a program as described in claim 17, wherein, The computer also includes a communication component that communicates with an information processing terminal. In the step of accepting the user settings, the user settings associated with the image are received from the information processing terminal via the communication component, thereby accepting the user settings.

24. The computer-readable recording medium storing a program as described in claim 17, wherein, The process also includes the following steps: when performing the image formation, if the type of sheet detected in the detection step is different from the type of sheet specified by the user in the acceptance step, a type of sheet for continuing the image formation according to the settings is selected. The image formation processing control conditions are set according to the difference between the type of sheet detected in the detection step and the type of sheet selected.

Images