JP2006339745A - Image processing unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image processing unit providing a normal read image, a formed one, or the like as an image processing result when a fault occurs temporarily or accidentally even if the fault occurs in image processing, such as image read processing and image formation processing. <P>SOLUTION: A fault state in prescribed image processing, such as the image read processing and image-based processing, is determined based on the drive situation of drive-based equipment used for the prescribed image processing (S2). When it is determined that the fault occurs in the prescribed image processing, the prescribed image processing for the original where it is determined that the fault occurs, is executed again (S4). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an image processing apparatus that executes image processing such as image reading processing for reading an image and image forming processing for forming an image, and in particular, processing for handling when an abnormality occurs in a drive system device used for the image processing. It is about.

In an image reading apparatus such as a scanner apparatus that executes an image reading process for reading an image of a document placed on a document table or an original document conveyed from an ADF (automatic document feeder), a drive system device used for the image reading process Are provided with a motor, a CCD driven by the motor, a document transport roller, a drive transmission device (gear, etc.) for transmitting a driving force from the motor. In this image reading apparatus, in the image reading process, there is a problem of gear meshing in the drive transmission device or load fluctuations in the drive transmission device due to dust adhering to the drive system device or external force being applied. When an abnormality such as a step-out of the motor due to the above occurs temporarily or accidentally, an abnormality such as distortion or continuation of a black image occurs in an image read by the image reading process (hereinafter referred to as “read image”). Here, when the abnormality of the image reading process has occurred temporarily or accidentally, it is expected that a normal read image can be obtained by re-execution of the image reading process. If an abnormality is found in the read image, the image reading process is re-executed.
In addition, in an image forming apparatus such as a printer or a copier that executes an image forming process for forming an image of a document placed on a document table or transmitted from a personal computer or the like, a drive system device used for the image forming process is used. Are provided with a motor, a photosensitive drum driven by the motor, a transfer roller, a fixing roller, a paper transport roller, a drive transmission device (gear, etc.) for transmitting a driving force from the motor. Also in this image reading apparatus, in the image forming process, there is a problem of meshing of the gear in the drive transmission device due to dust adhering to the drive system device or external force applied, and load fluctuations in the drive transmission device. When an abnormality such as step-out of the motor due to the above occurs temporarily or accidentally, an abnormality such as distortion occurs in an image formed by the image forming process (hereinafter referred to as “formed image”). Also in this case, the image forming process is re-executed by the user.
On the other hand, in Patent Document 1, sound and vibration in a driving side magnet and a driven side magnet constituting a driving force transmission mechanism that transmits a driving force of a motor in a non-contact manner are detected, and abnormal sounds and abnormal vibrations are detected. Has been disclosed that detects whether or not the motor has stepped out by determining whether or not it is included. It has also been proposed to eliminate the step-out by changing the voltage applied to the motor when the step-out of the motor is detected.
JP-A-6-284686

However, whether or not an abnormality has occurred in the image reading process or the image forming process is checked based on whether or not there is an abnormality in the read image obtained by the image reading process or the formed image obtained by the image forming process. The work and the work to re-execute the image reading process and the image forming process when there is an abnormality are troublesome for the user. In addition, there is a possibility that the user may overlook abnormalities in the read image or the formed image. In particular, when a minor abnormality occurs in the image reading process or the image forming process, the minor abnormality in the obtained read image or the formed image is detected. There is also a problem that it is difficult to find.
Accordingly, the present invention has been made in view of the above circumstances, and the object of the present invention is to provide a temporary or accidental abnormality even if an abnormality occurs in image processing such as image reading processing or image forming processing. In the case where the error occurs, it is an object of the present invention to provide an image processing apparatus capable of obtaining a normal read image or a formed image as an image processing result.

In order to achieve the above object, the present invention is applied to an image processing apparatus including image processing means for executing predetermined image processing, and drives a drive system device used for the predetermined image processing. An abnormal state of the predetermined image processing is determined based on a situation, and an abnormality is determined by the abnormal state determination unit in the image processing unit on condition that the determination result indicates an abnormality of the predetermined image processing The image processing apparatus is configured to re-execute the predetermined image processing for the original document.
According to the present invention, when it is determined that an abnormality has occurred in the predetermined image processing based on the driving status of the drive system device, the predetermined image processing for the document is re-executed. When the abnormality occurring in the drive system device is temporary or accidental, it is possible to obtain a normal image processing result by the predetermined image processing that has been re-executed. Thereby, for example, it is possible to save the user's troubles in the work of confirming whether or not an abnormality has occurred in the image processing result and the work of re-executing the predetermined image processing.
Here, the drive system device includes one or more of a motor used for the predetermined image processing, a drive target driven by the motor, and a drive transmission device that transmits a driving force from the motor to the drive target. It is conceivable to comprise.
The drive status of the drive system device may be the rotational speed of the drive system device or the vibration frequency of the drive system device. At this time, a high abnormality detection accuracy can be obtained by making a determination based on the vibration frequency of the drive system device.

Here, it is conceivable that the image processing means includes an image reading means for executing an image reading process for reading an image and an image forming means for executing an image forming process for forming an image. In this case, when it is determined that an abnormality has occurred in the image reading process or the image forming process based on the driving state of the drive system device, the image reading process or the image forming process for the document is executed again. Therefore, when an abnormality occurring in the drive system device is temporary or accidental, it is possible to obtain a normal read image or formed image by the re-executed image reading process or image forming process. Become.
At this time, if an abnormality occurs in the image reading process, the image reading unit may re-execute only a part of the image reading process executed when an abnormality occurs in the image reading process. Conceivable. If an image read by a part of the image reading process executed when an abnormality occurs in the image reading process is updated to an image read by the part of the image reading process re-executed Good. In this way, the processing time can be shortened by re-executing only the reading of the necessary part of the image, rather than starting the image reading process from the beginning.

In addition, even if there is some abnormality in the formed image obtained by the image forming process, it is necessary to re-execute the image forming process if the formed image has the image quality desired by the user. There is no sex. Even in such a case, if the image forming process is automatically executed, resources such as toner and paper are wasted.
Therefore, on the condition that an abnormality occurs in the predetermined image processing and a re-execution request is input from the input unit provided in the image processing apparatus, the image processing unit is caused to re-execute the predetermined image processing. It is possible. Thus, the user determines the necessity of re-execution of the image reading process and the image forming process, and re-executes the image reading process and the image forming process only when necessary, and when not necessary, the image reading process and the image forming process are performed. It becomes possible to prevent re-execution of processing.
Further, when an abnormality occurs in predetermined image processing such as image reading processing or image forming processing, it is desirable to display the abnormality content. As a result, the user can confirm that an abnormality has occurred in the predetermined image processing. It is also convenient for subsequent responses and maintenance management.

According to the present invention, when it is determined that an abnormality has occurred in the predetermined image processing based on the driving status of the drive system device, the predetermined image processing for the document is re-executed. When the abnormality occurring in the drive system device is temporary or accidental, it is possible to obtain a normal image processing result by the predetermined image processing that has been re-executed. Thereby, for example, it is possible to save the user's troubles in confirming whether or not an abnormality has occurred in the image processing result or in performing the predetermined image processing again.
Specifically, when it is determined that an abnormality has occurred in the image reading process or the image forming process based on the driving status of the drive system device, the image reading process or the image forming process for the original is executed again. Therefore, when an abnormality that has occurred in the drive system device is temporary or accidental, a normal read image or formed image can be obtained by the re-executed image reading process or image forming process. It becomes possible.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that the present invention can be understood. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
FIG. 1 is a block diagram showing a schematic configuration of the multifunction device X according to the embodiment of the present invention. FIG. 2 is a flowchart for explaining an example of a procedure of an image reading abnormality monitoring process executed by the multifunction device X. FIG. 3 is a flowchart for explaining an example of the procedure of the image formation abnormality monitoring process executed in the multifunction machine X.
First, a schematic configuration of the multifunction machine X according to the embodiment of the present invention will be described with reference to FIG.
As shown in the block diagram of FIG. 1, the multifunction device X includes peripheral devices such as a CPU, a ROM, and a RAM, and executes processing according to a predetermined program stored in the ROM, thereby executing the multifunction device X. Stores a control unit 1 that performs overall control, an operation display unit 2 such as a liquid crystal display and a touch panel for displaying and inputting various information in the multifunction machine X, and normal drive information and image data, which will be described later. A storage unit 3 and an image reading unit 4 (image reading unit) that executes an image reading process for reading an image of a document placed on a document table (not shown) or a document conveyed by an automatic document feeder (ADF, not shown). And an image forming unit 5 (corresponding to an image forming unit) that executes an image forming process for forming an image on a sheet supplied from a paper feeding cassette (not shown). There.

The image reading unit 4 includes a CCD 41 (an example of a drive target) that reads an image of the document, and a stepping motor 42 (hereinafter abbreviated as “motor 42”) that is used to move (scan) the CCD 41 along the document. And a drive transmission device 43 having a gear for moving the CCD 41 by transmitting the driving force of the motor 42, and a piezoelectric element (not shown) disposed in the vicinity of the motor 42, for example. And a vibration detection sensor 44 that detects the frequency of vibration of the motor 42. The image data of the original read by the image reading unit 4 is stored in the storage unit 3.
The image forming unit 5 includes a photosensitive drum 51 (an example of a driving target) that is uniformly charged to a predetermined potential by a charging device (not shown), and electrostatic latent images on the surface of the photosensitive drum 51 by exposure. An exposure device (not shown) such as a laser scanning unit for forming an image, and a developing device (not shown) for developing the electrostatic latent image formed on the surface of the photosensitive drum 51 with toner supplied from a toner cartridge A transfer roller 52 (an example of an object to be driven) that transfers the toner image formed on the surface of the photosensitive drum 51 to the paper by the developing unit, and a fixing that fixes the toner to the paper on which the toner image is transferred. A roller 53 (an example of a driving target) and a stepping motor 54 (hereinafter referred to as “motor 5”) that drives the photosensitive drum 51, the transfer roller 52, and the fixing roller 53. Is abbreviated as “)”, and is disposed in the vicinity of the motor 54 and a drive transmission device 55 having gears for transmitting the driving force of the motor 54 to the photosensitive drum 51, the transfer roller 52 and the fixing roller 53. And a vibration detection sensor 56 for detecting the frequency of vibration of the motor 54 using, for example, a piezoelectric element (not shown). In the image forming unit 5, an image forming process is performed based on image data of a document read by the image reading unit 4 or stored in the storage unit 3 by being input from an external information processing device (not shown). Is executed. The motor 42 and the motor 54 may be shared by a single motor. Similarly, the vibration detection sensor 44 and the vibration detection sensor 56 may be shared by a single vibration detection sensor.
The CCD 41, the motor 42, the drive transmission device 43, the photosensitive drum 51, the transfer roller 52, the fixing roller 53, the motor 54, and the drive transmission device 55 correspond to an example of a drive system device. .
The storage unit 3 includes normal reading drive information indicating a driving state of the motor 42 (an example of a drive system device) when the image reading process by the image reading unit 4 is normally performed, and the image forming unit. The normal formation drive information indicating the drive status of the motor 54 (an example of a drive system device) when the image forming process 5 is normally performed is stored in advance. In the present embodiment, the normal reading drive information is a vibration frequency of the motor 42 in a range that does not affect the read image by the image reading process, and indicates a range of 9 to 11 Hz. The normal formation drive information is a frequency of vibration of the motor 54 in a range that does not affect the image formed by the image forming process, and indicates a range of 13 to 15 Hz.

In the MFP X configured as described above, if an abnormality occurs in the drive system device used in the image reading process in the image reading unit 4 during execution of the image reading process by the image reading unit 4, The read image read by the image reading process is affected, and an abnormality occurs in the drive system apparatus used in the image forming process in the image forming unit 5 while the image forming unit 5 executes the image forming process. As a result, the formed image formed by the image forming process by the image forming unit 5 is affected.
In the MFP X according to the embodiment of the present invention, the control unit 1 executes an image reading abnormality monitoring process (see the flowchart in FIG. 2) and an image formation abnormality monitoring process (see the flowchart in FIG. 3), which will be described later. As a result, when an abnormality occurs in the image reading process by the image reading unit 4 or the image forming process by the image forming unit 5, the image reading process or the image forming process is re-executed.

Hereinafter, an example of the procedure of the image reading abnormality monitoring process and the image formation abnormality monitoring process executed by the control unit 1 will be described according to the flowcharts of FIGS. 2, S1, S2,... In FIG. 2 and S11, S12,.
First, referring to the flowchart of FIG. 2, the vibration level when the motor 42 is in a normal state due to an accidental abnormality occurring in the drive transmission device 43 during the execution of the image reading process by the image reading unit 4. An example will be described in which a vibration occurs at a frequency of 15 Hz, for example, and an abnormality occurs in the image reading process by the image reading unit 4. The following processing procedure is executed by the control unit 1 after the image reading process by the image reading unit 4 is started in the multifunction machine X.
In step S <b> 1, the vibration detection sensor 44 is controlled by the control unit 1 to detect the vibration frequency of the motor 42.
Next, in step S2, based on the vibration frequency of the motor 42 detected in step S1, whether or not an abnormality affecting the read image read by the image reading process by the image reading unit 4 has occurred. The state is determined by the control unit 1. Specifically, the vibration frequency (hereinafter referred to as “detection frequency”) of the motor 42 detected in the step S1 is a normal vibration frequency of 9 to 11 Hz stored in the storage unit 3 as normal reading drive information. It is determined whether it is within the range. Here, the control unit 1 when executing such determination processing corresponds to an abnormal state determination means.
Here, it is assumed that 15 Hz outside the range of the normal vibration frequency of 9 to 11 Hz is detected in Step S1 due to the occurrence of an abnormality in the drive transmission device 43. At this time, in step S2, it is determined that the image reading process by the image reading unit 4 is in an abnormal state (Yes side of S2), and the process proceeds to step S3. At this time, the image reading unit 4 may be controlled so that the image reading process by the image reading unit 4 is stopped or temporarily interrupted. If the detected frequency is within the normal vibration frequency range of 9 to 11 Hz, it is determined that the image reading process by the image reading unit 4 is not in an abnormal state (No side of S2), and the process is The process proceeds to step S1 and abnormality monitoring is continued.
In step S <b> 3, the control unit 1 displays on the operation display unit 2 that an abnormality has occurred in the image reading process. Here, the control unit 1 when executing such display processing corresponds to an abnormality content display means. Accordingly, the user can confirm that an abnormality has occurred in the image reading process.
In the subsequent step S4, the image reading unit 4 is controlled by the control unit 1, whereby the image reading process for the original when it is determined that the abnormality has occurred is re-executed. Here, the control unit 1 when causing the image reading unit 4 to re-execute the image reading process corresponds to a re-execution processing unit.
As a result, when the abnormality that occurred during the execution of the image reading process by the image reading unit 4 is due to the abnormality that occurred accidentally in the drive transmission device 43, it is re-executed in step S4. In the image reading process, a normal read image can be obtained.
In the present embodiment, an example in which the occurrence of an abnormality is detected based on the vibration frequency of the motor 42 has been described. However, an abnormality is detected based on the vibration frequency of the drive transmission device 43 instead of the vibration frequency of the motor 42. Detecting the occurrence of can also be considered as another embodiment. In this case, the vibration detection sensor 44 is provided in the vicinity of the drive transmission device 43, and the vibration frequency detected by the vibration detection sensor 44 is regarded as the vibration frequency of the drive transmission device 43 and is used as an index for abnormality detection. That's fine.

Next, referring to the flowchart of FIG. 3, the vibration level when the motor 54 is normal due to an accidental abnormality occurring in the drive transmission device 55 during execution of the image forming process by the image forming unit 5. For example, a case where the image forming unit 5 vibrates at a frequency of 18 Hz and an abnormality occurs in the image forming process by the image forming unit 5 will be described. The following processing procedure is executed by the control unit 1 after the image forming process by the image forming unit 5 is started in the multifunction machine X.
In step S <b> 11, the vibration detection sensor 56 is controlled by the control unit 1 to detect the vibration frequency of the motor 54.
Next, in step S12, based on the vibration frequency of the motor 54 detected in step S11, whether or not an abnormality affecting the formed image formed by the image forming process by the image forming unit 5 has occurred. It is determined by the control unit 1. Specifically, the vibration frequency (hereinafter referred to as “detection frequency”) of the motor 54 detected in the step S11 is a normal vibration frequency of 13 to 15 Hz stored as normal formation drive information in the storage unit 3. It is determined whether it is within the range. Here, the control unit 1 when executing such determination processing corresponds to an abnormal state determination means.
Here, it is assumed that 18 Hz outside the range of the normal vibration frequency of 13 to 15 Hz is detected in step S11 due to the occurrence of an abnormality in the drive transmission device 55. At this time, in step S12, it is determined that the image forming process by the image forming unit 5 is in an abnormal state (Yes side of S12), and the process proceeds to step S13. At this time, the image forming unit 5 may be controlled such that the image forming process by the image forming unit 5 is stopped or temporarily interrupted. If the detected frequency is within the normal vibration frequency range of 13 to 15 Hz, it is determined that the image forming process by the image forming unit 5 is not in an abnormal state (No in S12), and the process is as follows. The process proceeds to step S11 and abnormality monitoring is continued.
In step S13, the control unit 1 displays on the operation display unit 2 that an abnormality has occurred in the image forming process. In step S <b> 3, the control unit 1 displays on the operation display unit 2 that an abnormality has occurred in the image reading process. Here, the control unit 1 when executing such display processing corresponds to an abnormality content display means. Thus, the user can confirm that an abnormality has occurred in the image forming process.
In the subsequent step S14, the image forming unit 5 is controlled by the control unit 1, whereby the image forming process for the original when it is determined that the abnormality has occurred is re-executed. Here, the control unit 1 when causing the image forming unit 5 to re-execute the image forming process corresponds to a re-execution processing unit. At this time, the re-execution of the image forming process for the document when it is determined that the abnormality has occurred is realized by the image data of the document stored in the storage unit 3 being read again by the control unit 1. Is possible.
As a result, when the abnormality that occurred during the execution of the image forming process by the image forming unit 5 as described above is due to the abnormality that occurred accidentally in the drive transmission device 55, the step S14 is performed. Thus, a normal formed image can be obtained in the image forming process re-executed.
In this embodiment, an example in which the occurrence of an abnormality is detected based on the vibration frequency of the motor 54 has been described. However, instead of the vibration frequency of the motor 54, the photosensitive drum 51, the transfer roller 52, and the Detecting the occurrence of an abnormality based on the vibration frequency of the fixing roller 53, the drive transmission device 55, etc. can be considered as another embodiment. In this case, the vibration detection sensor 56 is disposed in the vicinity of these, The vibration frequency detected by the vibration detection sensor 56 may be regarded as the vibration frequency of the photosensitive drum 51, the transfer roller 52, the fixing roller 53, the drive transmission device 55, etc., and used as an abnormality detection index.
In addition, if the abnormality is not resolved even after re-execution, the abnormality in the image reading process or the image forming process is re-executed in step S4 so that the image reading process or the image forming process is not performed wastefully many times. It is desirable that the second or subsequent re-execution (S4 or S14) is not performed when an abnormality is detected in the image reading process performed or the image forming process re-executed in step S14. At this time, it is desirable to display and output error information such as “an error has occurred in the image reading unit 4 (image forming unit 5)” on the operation display unit 2 by the control unit 1.

FIG. 4 is a flowchart for explaining another example of the procedure of the image reading abnormality monitoring process executed in the multifunction machine X.
When the abnormality that has occurred in the image reading process by the image reading unit 4 is not accidental but is a steady one caused by a failure or damage of the drive system device, the image reading is performed in step S4. Even if the process is re-executed, the abnormality is not eliminated, and a normal read image cannot be obtained after all. Therefore, when the abnormality that has occurred in the image reading process is a steady one caused by a failure or breakage of the drive system device, when the image reading process is re-executed in step S4, the motor is previously stored. It is conceivable to change the rotational speed of 42 or the like.
Specifically, as shown in FIG. 4, if it is determined in step S2 that an abnormality has occurred, the process proceeds to step S21. In step S21, the control unit 1 determines whether or not the occurrence of abnormality is steady. Such a determination is made based on the occurrence cycle or occurrence frequency of the abnormality. For example, if it is determined that an abnormality has occurred periodically, the gear or the like in which the abnormality has occurred can be identified based on the occurrence period of the abnormality. Instead, it can be determined that it is stationary. If it is determined that the occurrence of abnormality is not steady, the process proceeds to step S3, and the image reading process is re-executed in subsequent step S4.
However, if it is determined in step S21 that the occurrence of abnormality is steady, the process proceeds to step S22, and the controller 1 determines the rotational speed of the motor 42 for the first time. The speed is set lower than that in the reading process. Then, the process proceeds to step S3, and in the subsequent step S4, the image reading process is re-executed. The image reading process re-executed in this manner is performed in a state where the motor 42 is rotated at a lower rotational speed than the first image reading process. For this reason, abnormalities in steady image reading processing due to failure or breakage of the drive system device are alleviated, and the influence on the accuracy of the read image is reduced or prevented, so that a read image better than the first one can be obtained. can get.
Even when the abnormality that has occurred is temporary or accidental, the possibility that the abnormality may occur can be reduced by reducing the rotational speed of the motor 42 in some cases. It is also possible to delete step S21 and execute the process of step S22 for reducing the rotational speed of the motor 42 regardless of whether the abnormality is temporary or accidental or stationary. It can be considered as an example.
Further, here, a modification of the image reading abnormality monitoring process during execution of the image reading process by the image reading unit 4 has been described. However, the image forming abnormality monitoring during the execution of the image forming process by the image forming unit 5 is described. Also in the processing, it is possible to reduce or prevent the influence on the accuracy of the formed image by executing the processing similar to the steps S21 and S22.

In step S4, which is executed when an abnormality occurs in the image reading process by the image reading unit 4, only a part of the image reading process for the original when the abnormality occurs is re-executed. It is possible to shorten the time.
That is, in the step S4, the control unit 1 causes the image reading unit 4 to re-execute only the image reading process of only a part of the original read when an abnormality occurs in the vibration frequency of the motor 42. Can be considered. In this case, a part of the original image data read by the image reading unit 4 and stored in the storage unit 3 by the control unit 1 is read by the re-executed partial image reading process. What is necessary is just to process so that it may be updated to data. Here, the control unit 1 when executing the updating process corresponds to an image updating unit.

In the embodiment, when it is determined in step S3 (or S13) that an abnormality affecting the read image (or formed image) has occurred in the image reading process (or image forming process), the step is automatically performed. Although the case where the image reading process (or the image forming process) is re-executed in S4 (or S14) has been described, the re-execution of the image reading process (or image forming process) in the step S4 (or S14) It may be executed on condition that a re-execution request is input from the user to the operation display unit 2.
As a result, the user can determine whether or not to re-execute the image reading process or the image forming process, and can perform an operation without executing the unnecessary image reading process or re-execution of the image forming process. . For example, even if there is some abnormality in the formed image obtained by the image forming process, it is necessary to re-execute the image forming process if the formed image has the image quality desired by the user. There is no sex. In the image reading process for reading the image data of the document conveyed from the ADF, it is possible to re-execute the image reading process for the document after placing the document on the ADF again.

  The vibration frequency of the motor 42 and the drive transmission device 43 has been described as an example of the drive status of the drive system device that is an index for detecting an abnormality in the image reading process by the image reading unit 4, but as another embodiment, It is also conceivable to use the rotation speed of a gear (not shown) included in the motor 42 or the drive transmission device 43 as an index. In this case, instead of the vibration detection sensor 44, for example, a photoelectric rotary encoder (not shown) for detecting the rotational speed of the motor 42 or the gear (not shown) is provided. It should be noted that the vibration frequency of the photosensitive drum 51, the transfer roller 52, the fixing roller 53, the motor 54, and the drive transmission device 55 is similarly applied to an index for detecting an abnormality in image forming processing by the image forming unit 5. The rotational speed is not limited to this, and it is also possible to use these rotational speeds as indices.

FIG. 5 shows a vibration frequency waveform of the motor 42 when the image reading process is normally performed, and FIG. 6 shows a detected frequency waveform of the motor 42 when an abnormality occurs in the image reading process. FIG.
As a method for determining an abnormal state in step S2 (or S12), in addition to the above-described numerical comparison, image reading processing (or image forming processing) is normal as the normal reading driving information (normal forming driving information). The vibration frequency waveform (see FIG. 5) of the motor 42 (or 54) in the case of being performed in the above is stored in the storage unit 3, and the vibration frequency waveform (see FIG. 5) and the motor 42 (or 54) are stored. ) To the detected frequency waveform (see FIG. 6), and it is considered that the abnormal state is determined by detecting the difference (broken line portion shown in the figure) and the degree of the difference.

1 is a block diagram showing a schematic configuration of a multifunction machine according to an embodiment of the present invention. 6 is a flowchart for explaining an example of a procedure of an image reading abnormality monitoring process executed by the multifunction peripheral according to the embodiment of the present invention. 6 is a flowchart for explaining an example of a procedure of an image formation abnormality monitoring process executed by the multifunction peripheral according to the embodiment of the present invention. 9 is a flowchart for explaining another example of the procedure of the image reading abnormality monitoring process executed by the multifunction machine according to the first embodiment of the present invention. The figure which shows the vibration frequency waveform of a motor when the image reading process is performed normally. The figure which shows the detection frequency waveform of the motor when abnormality has arisen in the image reading process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Control part 2 ... Operation display part 3 ... Memory | storage part 4 ... Image reading part 5 ... Image formation part 41 ... CCD
42, 54 ... stepping motors 43, 55 ... drive transmission devices 44, 56 ... vibration detection sensors 51 ... photoconductor drums 52 ... transfer rollers 53 ... fixing rollers S1, S2, ... processing procedure (step) numbers

Claims (8)

An image processing apparatus comprising image processing means for executing predetermined image processing,
An abnormal state determination means for determining an abnormal state of the predetermined image processing based on a driving situation of a drive system device used for the predetermined image processing;
The predetermined image processing on the original when the abnormality is determined by the abnormal state determination unit is performed on the image processing unit on the condition that the determination result by the abnormal state determination unit indicates the abnormality of the predetermined image processing. Re-execution processing means for re-execution;
An image processing apparatus comprising:   The drive system device includes one or more of a motor used for the predetermined image processing, a drive target driven by the motor, and a drive transmission device that transmits a driving force from the motor to the drive target. The image processing apparatus according to claim 1.   The image processing apparatus according to claim 1, wherein the drive status of the drive system device is a rotation speed of the drive system device and / or a vibration frequency of the drive system device.   The image according to claim 1, wherein the image processing unit includes an image reading unit that executes an image reading process for reading an image and / or an image forming unit that executes an image forming process for forming an image. Processing equipment.   The image re-executed by the re-execution processing unit when an abnormality occurs in the image reading unit in the image reading unit on the condition that the determination result by the abnormal state determination unit indicates an abnormality in the image reading process. The image processing apparatus according to claim 4, wherein a part of the reading process is re-executed.   Image updating means for updating an image read by a part of the image reading process executed when an abnormality occurs in the image reading process to an image read by the part of the image reading process re-executed The image processing apparatus according to claim 5, further comprising:   The re-execution processing means is provided on the condition that the determination result by the abnormal state determination means indicates an abnormality of the predetermined image processing and a re-execution request is input from an input means provided in the image processing apparatus. The image processing apparatus according to claim 1, wherein the image processing unit causes the predetermined image processing to be re-executed.   The image processing apparatus according to claim 1, further comprising: an abnormality content display unit that displays the abnormality content when a determination result by the abnormal state determination unit indicates an abnormality of the predetermined image processing.

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