JP2000347544A - Image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image forming device making the life control of adopting components possible to be efficiently performed by accurately performing replacement/inspection of the adopting components of the image forming device by definitely performing based on a used history information of the adopting components. SOLUTION: As for this image forming device, when a SP mode is set from an operation part, a use history information of the adopting components and the operation life condition corresponding thereto on a display screen, for instance, when operating a decision key corresponding to a paper feeding unit as the adopting components, on the display screen, the life decision message is displayed in the effect that the designated paper feed unit is 'adjustment margin of sagging quantity is reduced, jam ratio is 1/1234, jam occurrence frequency is increasing. incidentally, replacement is performed last time at the jam ratio 1/3120', therefore the user can effectively perform the life control of the adopting components with high accuracy by performing in precisely judging, the adopting components, based on the use history information and the decision message.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus, and more particularly to an image forming apparatus for displaying operation life management information at the time of replacement / inspection of used parts.

[0002]

2. Description of the Related Art In order to maintain the operation performance of an image forming apparatus such as a copying machine, the image forming apparatus is provided with a regular maintenance service for cleaning and replacement of parts and a regular maintenance service for inspection and cleaning. It has been done as. The periodic maintenance is performed when the user contacts a service company based on the periodic maintenance notification displayed on the display when the count value of the copy number counter reaches a predetermined value, for example, 100,000. In this case, in a copier management system in which a number of copiers and a host computer of a service center are connected to each other via a public line, a periodic maintenance report is sent from the copier to the host computer for each predetermined count value of the copy number counter. On the basis of this periodic maintenance report, a regular maintenance is performed by a service technician dispatched from the service center. On the other hand, the periodic inspection is performed at shorter intervals than the periodic maintenance, and is performed, for example, when the count value of the copy number counter reaches 30,000.

In the meantime, in the regular maintenance, parts such as a photosensitive drum, a charging / transferring member and a paper feed roller are replaced when the number of copies reaches a preset value for each part. . The number of copies set for the replacement of each part is set to a small value on the safe side in consideration of use in a severe installation environment, and even if it is a part that can still be used in the actual installation environment,
It has been replaced after the set number of copies,
Regular maintenance intervals also tended to be shorter.

[0004]

In order to solve the above-described problem of replacement of the used parts of the image forming apparatus, measure the effective use of the used parts, and efficiently perform the periodic maintenance, the parts replacement in the periodic maintenance is performed. It has been proposed to classify the time of use into a part having a difference in life depending on the use environment of the user and a part having no difference in life depending on the use environment of the user. In this case, depending on the usage environment of the user, if the number of copies that has been set in advance at the time of the periodic maintenance has been reached for a component that does not cause a difference in life, the component is replaced as usual,
For parts whose life varies depending on the user's usage environment, based on the analysis results of the life test data for each part, the reference number of copies set in advance is used as a guide value, and the parts are used according to the actual state of the parts. On the basis of the judgment of a service technician, parts need to be replaced at the time of regular maintenance or regular inspection when replacement is required. But,
In replacing the used parts according to the proposal, it is necessary that the service technician manages the reference copy number data freely for each part, and the service technician
There are many cases where it is difficult to determine when to replace.

SUMMARY OF THE INVENTION The present invention has been made in view of the present situation of the replacement and check operation of the used parts of the image forming apparatus as described above.
It is an object of the present invention to provide an image forming apparatus capable of accurately performing an inspection based on use history information of a used component and efficiently managing the life of the used component with high accuracy.

[0006]

In order to achieve the above object, the invention according to claim 1 is incorporated in an apparatus and used,
A usage history information detecting means for detecting usage history information for a plurality of types of used parts which are replaced or inspected when a predetermined cumulative usage condition is reached, and a usage history information detected by the usage history information detecting means. Display means for displaying, for the plurality of types of used parts, use history information displayed by the display means and operating life conditions preset for the corresponding used parts, and comparing the used parts When the operating life condition is met, an inspection notification unit that displays a notification on the display unit, and a used part that is displayed on the display unit is replaced or the image forming is performed until it is determined by inspection that the part can be continuously used. It is characterized by having a stopping means for stopping the operation and a clearing means for clearing the corresponding use history information when the used component indicated by the notification is replaced.

[0007] Similarly, in order to achieve the above object, a second aspect of the present invention is the same as the first aspect, except that a jam occurrence rate calculating means for detecting occurrence of a jam and calculating a jam occurrence rate is provided. And a jam occurrence rate display means for displaying the jam occurrence rate on the display means.

Similarly, in order to achieve the above object, a third aspect of the present invention is different from the second aspect of the invention in that when the clearing operation is performed by the clearing means, previous use history information immediately before the clearing operation is recorded. And a previous use history information display means for displaying the last use history information on the display means.

[0009] Similarly, in order to achieve the above object, a fourth aspect of the present invention is the same as the third aspect, except that the replacement of the used component is based on the operating life condition. Exchange information input means for inputting information, exchange information storage means for recording the exchange information, and exchange information display means for displaying the exchange information on the display means are further provided. is there.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. The control system according to the present embodiment has a configuration as shown in FIG. 2. A main control unit 210 includes a CPU 211 for controlling the entire operation, a ROM 212 in which a control program is stored, and various data during the control operation. Is stored and read out from the RAM 21
3, a nonvolatile RAM 214, a serial I / F 215 for performing an interface operation, and a timer 216. The main control unit 210 includes a paper feed unit 11, a duplex unit 12, a post-processing device 20, an automatic document feeder 3
0, various sensors 223 such as a temperature sensor, various DC loads 222, and various AC loads 221 such as a photoconductor driving motor, a sheet feeding motor, and a clutch are connected. The main control unit 210 has a command signal in the image forming instruction mode and a serviceman program mode (hereinafter, SP mode).
And an operation unit 50 having a liquid crystal display screen for displaying a display image in the image forming instruction mode and a display image in the SP mode.

The operation unit 50 has a configuration as shown in FIG. 3, and displays a display image in an image forming instruction mode and a display image in the SP mode in the center, and a touch panel for inputting various commands. A liquid crystal display screen 302 is provided. A numeric keypad 301 for setting the number of copies is provided near one side of the liquid crystal display screen 302. An interrupt key 308 for performing an interrupt operation outside the numeric keypad 301 is provided. A mode clear / preheat key 307, a start key 309, and a clear / stop key 310 for performing preheating setting by operation and continuous pressing are provided. Further, a guidance key 303 is provided near the other side of the liquid crystal display screen 302 to shift to a guidance mode display.
A program key 304 for setting and calling and a brightness adjustment knob 306 are provided.

In this embodiment, the image forming instruction mode is set by turning on the power, and the display screen 3 of the image forming instruction mode as shown in FIG.
02A is displayed. At the top of the display screen 302A, a message area 40 for displaying an operation message is displayed.
1 is provided, and at the end of the message area 401, a copy number display section 402 is displayed.
1 and a density key 40 for adjusting the image density
3 is displayed, and a paper selection key 404 for selecting a transfer paper is displayed below and adjacent to the density key 403. Also, adjacent to the lower part of the paper selection key 404, a paper specification scaling key 410 for performing enlargement / reduction processing in accordance with the size of the transfer paper is displayed. A sort key 406 for arranging the sheets in the page order, a stack key 407 for sorting the copied sheets for each page, a staple key 408 for binding the sorted sheets one by one, and a two-sided key 411 for performing the two-sided copy are arranged in a line. A special document feed key 409 is displayed above and above the two-sided key 411.

As shown in FIG. 1, the image forming system of the present embodiment includes an apparatus main body 10, a post-processing apparatus (sort stapler) 20, and an automatic document feeder (ADF) 30. Are paper feed units 11a to 11d,
A double-sided unit 12, a photoconductor 13, and an electrophotographic process unit including a charging charger 18 and a transfer belt 17 are provided around the photoconductor 13. Also,
The apparatus body 10 includes an optical system 14 and a contact glass 1.
6, and a fixing device 15 including a fixing roller 15a, a pressure roller 15b, and a separation claw 15c. And
The sorter stapler 20 is provided with a switching claw 21, a proof tray 22, a movable bin 23, a helical cam shaft 24, a bin lift motor 25, and a staple unit 27 having a stapler 26.

In this embodiment, when a display screen of an image forming instruction mode is displayed and a predetermined command is input to start an image forming operation, an automatic document feeder (ADF)
In the one-sided original mode, the original set on the original 30 is conveyed from the lowermost original to the contact glass 16 by the conveying belt 31 and the original image is optically read. Discharged face up. Also, in the two-sided document mode, the conveyed document is
After passing through the contact glass 16, the document is inverted by the duplex unit 12 and returned onto the contact glass 16, and the image on the back surface of the document is optically read. The document is then conveyed onto the contact glass 16 and, after the image on the surface of the document is optically read, is discharged with the surface facing upward.

Next, the optical system 14 exposes the image of the original to the photoconductor 13 to form an electrostatic latent image of the original on the photoconductor 13, and is transferred from the paper feed unit 11 by being selected from the paper feed unit 11. The electrostatic latent image is developed on the paper, a toner image is formed on the transfer paper, the toner image is fixed on the transfer paper by the fixing device 15, and the transfer paper on which the original image is formed is sent from the paper discharge port. The sheet is discharged to the sorter stapler 20, and the transfer path is switched to the proof tray 22 or the bin 23 by the switching claw 21. In this case, at the time of double-sided image formation, the transfer paper on which one surface has been developed is inverted and stored in a standby state by the double-sided unit 12, and the transfer paper conveyed from the double-sided unit 12 is used for the transfer of the original exposed to the photoconductor 13. The surface is developed, and original images are formed on both sides of the transfer paper.

The transfer paper on which image formation has been completed is discharged to the selected bin 23 via the bin discharge roller pair 28, and the bin 23 on which the transfer paper has been discharged is stapled by the bin lift motor 25. The transfer paper bundle is moved to the unit 2 position, the transfer paper bundle is taken out to the position of the stapler 26 by the chuck unit, stapling is performed, and the processed transfer paper bundle is returned to the bin 23 by the chuck unit.

In this embodiment, a display screen of a serviceman program mode (SP mode) is displayed,
In the case of performing a regular maintenance or a regular inspection by inputting a predetermined command, the mode clear / preheat key 307 and the clear / stop in the display state of the display screen 302A of the image forming instruction mode shown in FIG. When the key 310 and the key 310 are simultaneously pressed for 3 seconds or longer, the table of contents display screen 302B in the SP mode shown in FIG. 5 is displayed. An end key 505 is displayed at the upper end position of the table of contents display screen 302B in the SP mode shown in FIG. 5, and number keys 501 to 504 are arranged and displayed at one side edge. When the end key 505 of the table of contents display screen 302B is pressed, the screen returns to the display screen 302A, and when the number keys 501 to 504 are pressed, the screen shifts to the corresponding function setting screens. When the number key 502 of the table of contents display screen 302B is pressed, Display screen 30 of the PM counter (clear) shown in FIG.
Move to 2C.

At the top of the display screen 302C, a front key 602, a rear key 603, and a table of contents key 601 are displayed, and on the display screen 302C, a PM for counting the number of copy images corresponding to each used component is displayed. The counter value, the counter value for counting the number of document readings,
The count value of the DF document counter for counting the operation of the ADF is displayed, and a clear key 604 is displayed corresponding to the display position of each counter.

On the display screen 302C, the table of contents key 60
Pressing 1 returns to the table of contents display screen 302B of FIG.
When the previous key 602 and the next key 603 are pressed, the screen shifts to a display screen of an operation counter corresponding to another used component. For example, when the next key 603 is pressed, the screen shifts to a display screen 302D shown in FIG. On the display screen 302C, P
The M counter counts up by one for each image formed, the number of scans counts up by one for one scanning operation of the scanner, and the DF document counter counts up by one for each feed of the DF document. The count value of
It is recorded in the nonvolatile RAM 214 in FIG.

In this embodiment, the display screen 3 shown in FIG.
At 02C, when the count value of the PM counter reaches a predetermined value set in advance, a message notifying that it is time for regular maintenance is displayed in a message area 401 of a display screen 302A shown in FIG. It is displayed, and based on this report, a request for a periodic maintenance request is sent to the service company, and the service engineer of the service company performs the periodic maintenance.

By the way, in an image forming apparatus such as a copying machine, to maintain the quality and operation performance of a copied image,
Many parts that need to be replaced regularly are used.However, there is a difference in the service life depending on the installation conditions and usage environment.Parts that determine whether or not to replace by referring to the count value of the operation counter are also used. In addition, a component, such as a paper feed unit, which counts with an operation counter for each unit and determines whether or not to replace it, is also used. In the present embodiment, a count value used as a guide for judging the operation life of each component or unit whose use status is managed by the count value of the operation counter is set. Based on the installation state, usage environment, and other life conditions, the operating life of the component or unit is determined.For example, in the paper feed unit, a decrease in the amount of slack in the paper supply or an increase in the frequency of occurrence of the paper jam is detected. , In this case, is taken up as another life condition.

In the regular maintenance, the service technician displays a display screen 302 shown in FIG.
The display is switched from A to the display screen 302B shown in FIG. 5, and the number keys 501 to 504 are operated to sequentially display the display screen 302C shown in FIG. 6 and the display screen 302D shown in FIG. The display screen 3 shown in FIG.
As shown in 02E, a reference value which is a reference for determining the operation life is displayed near the operation counter. Here, the standard value is
The display is performed in units of 1000 sheets, and the standard value 200K of the sheet feeding unit 1 is equivalent to 200,000 sheets. The operation counter value, reference value, and judgment condition data for each part
The information is stored in the AM 214 in association with each other.

On the display screen 302E, for example,
When the determination key 801 of the paper feeding unit 1 is pressed, as shown in FIG. 9, in the paper feeding unit 1, a life determination message A indicating that “the amount of slack adjustment has disappeared and the frequency of occurrence of jams has increased” is displayed. Then, when the service technician who has confirmed the message A presses the confirmation key K1, the window screen is closed. Also, by operating the operation unit 50,
As shown in FIG. 14, a display screen 3 for confirming a replacement part
02K is displayed, and the service technician presses the replacement key 902 when performing the replacement process on each component, and presses the inspection key 901 when performing the inspection process.

FIG. 15 is a flowchart showing the display operation of the judgment condition according to the present embodiment.
A counter is displayed, the process proceeds to step S2, a display of the reference value corresponding to the display of the operation counter is performed, and the process proceeds to step S3, where it is determined whether or not the determination key is pressed, and the determination of step S3 is performed. If the answer is YES, the process proceeds to step S4, and the determination condition is displayed. FIG.
Is a flowchart showing a clearing operation of the present embodiment, in which a PM counter is displayed in step S11, the process proceeds to step S12, an operation counter is displayed, and a reference value and a previous value are displayed. In step S13, it is determined whether or not the clear key has been pressed,
If the determination in step S13 is YES, step S1
Proceeding to 4, the operation counter and the previous value operation counter are cleared.

FIG. 17 is a flowchart showing the operation of setting the exchange confirmation flag according to the present embodiment.
In step S22, the process proceeds to step S22, where it is determined whether or not the count value of the operation counter is smaller than the reference value. If the determination in step S22 is YES, the process proceeds to step S23. The exchange confirmation flag is set. Next, the process proceeds to step S24, where it is determined whether the check of all the replacement parts is completed. If the determination in step S22 is NO, the process directly proceeds from step S22 to step S24, and It is determined whether the check has been completed. If the determination in step S24 is NO, the process returns to step S22, and the same processing as described above is repeated.

FIG. 18 is a flowchart showing the operation of resetting the exchange confirmation flag according to the present embodiment.
At 1, the SP mode is set, and the process proceeds to step S32.
It is determined whether or not the exchange confirmation flag is set,
If the determination in step S32 is YES, step S3
3, the display screen 302E for confirmation shown in FIG.
Is displayed. Next, the process proceeds to step S34, where it is determined whether or not the inspection key has been pressed. If the determination in step S34 is YES, the process proceeds to step S37, where the exchange confirmation flag is reset. If the determination in step S34 is NO, the process proceeds to step S35, in which it is determined whether the exchange key has been pressed. If the determination in step S35 is NO, the process returns to step S34, and the process returns to step S34.
If the determination at 35 is YES, the operation proceeds to step S36, where the operation counter is cleared, the operation proceeds to step S37, and the exchange confirmation flag is reset. Then, from step S37, the process returns to step S32 and returns to step S32.
Until it is determined in step 32 that the exchange flag is not set, the same processing is repeated in step S33 and subsequent steps. If the determination in step S32 is NO, the process proceeds to step S38, where the display screen 302E for confirmation is released. Is done.

When the clear key 604 is depressed on the display screen 302E of FIG. 8, the count value of the operation counter is stored in the nonvolatile RAM 214, the operation counter is cleared, and as shown in FIG. The displayed display screen 302G is displayed. The display screen 30 of FIG.
In 2E, when the clear key 604 is pressed, a display screen 302H displaying a confirmation message B is also displayed as shown in FIG. 11, and the service technician presses the YES key to perform the replacement based on the lifetime. When the key is pressed, the count value of the operation counter exceeds the reference value, but it is not determined that the service life has expired, and if it is determined that it will be defective at the next maintenance, the NO key is pressed, and the key press information is non-volatile. Stored in RAM. Then, the screen shifts to the display screen 302I shown in FIG. 12, and next to the previous value, an OK display is performed when the NO key is pressed, and an NG display is performed when the YES key is pressed.

FIG. 19 is a flowchart showing a part life determining process confirming operation according to the present embodiment. In step S41, a PM counter is displayed, and the process proceeds to step S42, where the count value of the operation counter, the reference value, the previous value, and The life determination result is displayed, and then the process proceeds to step S43, where it is determined whether the clear key has been pressed. Step S43
Is YES, the process proceeds to step S44, a life result confirmation display is performed, and the process proceeds to step S45.
It is determined whether the ES key has been pressed or not, and step S4
If the determination at 5 is YES, the process proceeds to step S46,
It is confirmed that the parts have been replaced based on the life, and the data of the result is stored in the nonvolatile RAM 214.
If the determination at 5 is NO, the process proceeds to step S47, where the life data of the component is stored in the nonvolatile RAM 214.
Then, the process proceeds from step S46 and step S47 to step S48, where the operation counter and the previous value operation counter are cleared.

In this embodiment, when two or more parts replacements have occurred, the count value of the PM counter at the time of the previous replacement and the life determination result at the time of replacement (OKorNG) are compared with the current data. Then, it is determined whether or not to reflect the current data. Also, if the previous and current times are both OK, the larger of the count value of the counter is stored, and if one is OK and any is NG, NG information is stored,
If the previous and current times are both NG, the smaller of the count value of the counter is stored.

On the other hand, in the present embodiment, during the paper feeding operation, if the paper does not pass within a predetermined time from the start of the paper feeding operation, it is determined that a jam has occurred, and the message of the operation unit 50 is displayed. A jam is displayed in the area 401,
At the same time, the number of occurrences is counted corresponding to the location where the jam has occurred, and stored in the nonvolatile RAM 214. For example, when a jam occurs during a copying operation from the paper feed unit 1, the jam counter of the paper feed unit 1 counts. In this case, when shifting to the SP mode, the calculation of the jam occurrence rate is performed, and the jam occurrence rate is calculated as the jam counter count value / operation counter count value. And
On the display screen 302E shown in FIG.
Is pressed, the jam information including the jam rate is displayed as shown in a display screen 302J of FIG. The update of the jam rate is performed when a change occurs in the jam rate when shifting to the SP mode.

FIG. 20 is a flowchart showing a jam rate calculating operation according to the present embodiment. In step S51, the SP mode is set, the process proceeds to step S52, the jam rate is calculated, and in step S53, the calculated jam rate is calculated. It is determined whether the rate is different from the current jam rate, and step S
If the determination at 53 is YES, the process proceeds to step S54, where the calculated jam rate is set to the current jam rate,
The current jam rate is set to the previous jam rate. FIG.
Is a flowchart showing the display operation of the jam rate determination condition according to the present embodiment. In step S61, a PM counter is displayed, the process proceeds to step S62, an operation counter is displayed, and the reference value and the previous value are displayed. Then, the process proceeds to step S63, where it is determined whether or not the determination key has been pressed. If the determination in step S63 is YES, the process proceeds to step S64, and the determination condition including the current jam rate information and the previous jam rate information is performed. Is displayed on the display screen 302J shown in FIG.

[0032]

According to the first aspect of the present invention, the use history of a plurality of types of used parts which are incorporated and used in the apparatus by the use history information detecting means and are replaced or inspected when a predetermined cumulative use condition is reached. The information is detected, the display means displays the usage history information detected by the usage history information detection means, and the inspection reporting means displays the usage history information for a plurality of types of usage parts and the corresponding usage parts. Is compared with the operating life condition preset in
When the used parts meet the operating life conditions, a notification is displayed on the display means, and the image is displayed by the stop means until the used parts indicated by the notification on the display means are replaced or inspected to determine that they can be used continuously. When the forming operation is stopped and the used part indicated by the notification is replaced, the corresponding use history information is cleared by the clearing means, so that a plurality of types of used parts are cleared according to the respective use history information. To accurately determine the necessity of replacement or inspection, and to promptly and accurately perform the replacement and inspection of the corresponding used parts as necessary, and to efficiently manage the appropriate life of the used parts. Becomes possible.

According to the second aspect of the present invention, in addition to the effect obtained by the first aspect of the present invention, the jam occurrence rate is calculated by the jam occurrence rate calculating means when a jam occurs, and the calculated jam occurrence rate is calculated. Is displayed on the display means by the jam occurrence rate display means, so that accurate life management can be efficiently performed even for a member that may cause a jam in the paper transport system.

According to the third aspect of the present invention, in addition to the effect obtained by the second aspect of the present invention, the last use history information recording means allows the last use history information immediately before the clear operation to be performed by the clear means at the time of the clear operation by the clear means. Since the last use history information is recorded and displayed on the display means by the last use history information display means, it is possible to effectively use the last use history information to perform highly accurate life management of the used parts. .

According to the fourth aspect of the present invention, in addition to the effect obtained by the third aspect of the invention, the exchange information input means determines whether or not the replacement of the used component is based on the operating life condition. Is input and the replacement information display means displays the replacement information on the display means, so that it is possible to accurately grasp the replacement information of the used parts and to manage the life of the used parts with high accuracy.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a configuration of an image forming system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a control system according to the embodiment.

FIG. 3 is an explanatory diagram illustrating a configuration of an operation unit in FIG. 2;

FIG. 4 is an explanatory diagram of a display screen in an image forming instruction mode according to the embodiment.

FIG. 5 is an explanatory diagram of a table of contents display screen in the serviceman program mode of the embodiment.

FIG. 6 is an explanatory diagram of a display screen of an operation history of the first type member according to the embodiment.

FIG. 7 is an explanatory diagram of a display screen of an operation history of a second type member according to the embodiment.

FIG. 8 is an explanatory diagram of a display screen of operation life reference data according to the embodiment.

FIG. 9 is an explanatory diagram of a display screen of a determination condition of an operating life according to the embodiment;

FIG. 10 is an explanatory diagram of a display screen of operation history data at the time of previous replacement according to the embodiment.

FIG. 11 is an explanatory diagram of a display screen of component replacement information according to the embodiment;

FIG. 12 is an explanatory diagram of a display screen of a determination process for an operating life according to the embodiment.

FIG. 13 is an explanatory diagram of a jam occurrence information display screen of the embodiment.

FIG. 14 is an explanatory diagram of a display screen of a part replacement / inspection selection setting of the embodiment.

FIG. 15 is a flowchart showing a display operation of a determination condition according to the embodiment.

FIG. 16 is a flowchart showing a clear operation of a display screen of the embodiment.

FIG. 17 is a flowchart showing an operation of setting an exchange confirmation flag according to the embodiment.

FIG. 18 is a flowchart showing an operation of resetting an exchange confirmation flag according to the embodiment.

FIG. 19 is a flowchart showing a component life determination processing confirmation operation according to the embodiment.

FIG. 20 is a flowchart showing a jam rate calculation operation of the embodiment.

FIG. 21 is a flowchart showing a jam rate determination condition display operation of the embodiment.

[Explanation of symbols]

 50 operation unit 214 non-volatile RAM 302A to 302K display screen 401 message area 601 table of contents key 602 previous key 603 next key 604 clear key 801 judgment key

Claims (4)

[Claims] 1. Usage history information detecting means for detecting usage history information for a plurality of types of used parts which are incorporated and used in an apparatus and are replaced or inspected when a predetermined cumulative usage condition is reached, Display means for displaying usage history information detected by history information detection means; usage history information displayed by the display means for the plurality of types of used parts; and operation preset for the corresponding used parts Comparing the life condition, and when the used component conforms to the operating life condition, an inspection notification unit that performs a notification display on the display unit; and the used component that is displayed on the display unit is replaced or inspected. Until it is determined that continuous use is possible, a stop unit that stops the image forming operation, and a clear unit that clears the corresponding use history information when the used component indicated by the notification is replaced. An image forming apparatus, comprising. 2. The apparatus according to claim 1, further comprising: a jam occurrence rate calculating means for detecting the occurrence of the jam and calculating the jam occurrence rate; and a jam occurrence rate display means for displaying the jam occurrence rate on the display means. The image forming apparatus according to claim 1, wherein: 3. A clearing operation by the clearing means,
Last use history information recording means for recording last use history information immediately before the clearing operation; and last use history information display means for displaying the last use history information on the display means are further provided. The image forming apparatus according to claim 2. 4. An exchange information input unit for inputting exchange information as to whether the replacement of the used component is based on the operating life condition, an exchange information storage unit for recording the exchange information, and the display unit. 4. An exchange information display means for displaying the exchange information is further provided.
The image forming apparatus as described in the above.