JP5532243B2 - Image forming apparatus - Google Patents

Description

  The present invention relates to an image forming apparatus that forms an image based on image data, and more particularly to an image forming apparatus capable of automatic adjustment and manual adjustment of operation parameters for operation items of each unit.

In an image forming apparatus that forms and fixes an image on a sheet based on image data and performs post-processing as desired, the operation of each unit is automatically adjusted in order to maintain good image quality and the like. For example, in accordance with the type of paper, the air volume of the paper fan at the time of paper feeding, the air volume of the fixing air separation fan, and the humidity adjustment of the humidifier are automatically adjusted. For this reason, these automatic adjustments are performed after recognizing the paper type, but the paper type may change during execution of the JOB, and in this case, the operation that may change the paper type is recognized. There is a need to.
For example, in Patent Document 1, insertion / extraction of a paper feed tray in which paper feeding is performed is detected, and the type of paper before and after insertion / extraction of the paper feed tray can be recognized.
Further, in Patent Document 2, an inquiry is made to the operator as to whether or not the tray can be switched when the paper feed tray is switched, so that the paper is not automatically switched to a paper quality contrary to the operator's intention.

JP 2000-247465 A Japanese Patent Laid-Open No. 2002-321843

  Incidentally, some image forming apparatuses allow manual adjustment in addition to automatic adjustment in the operation items. When manual adjustment is performed, the setting is normally maintained and the manual adjustment remains as long as the operator does not perform a release operation or changes the setting. For this reason, even if the paper type is correctly recognized according to Patent Documents 1 and 2, etc., if the paper type changes, the previous manual adjustment settings are retained, so the condition setting is not optimal. There is a risk that image formation will be performed. In addition, when a job is completed and another job is started, the same situation may occur unless appropriate adjustment is made, which may cause problems such as JAM. For this reason, the operator is required to carefully judge whether the contents of manual adjustment are appropriate when the paper changes, but there is a concern that manual adjustment may continue as it is due to carelessness. Is done.

  The present invention has been made against the background of the above circumstances, and when manual adjustment is selected, appropriate adjustment according to the type of paper is made by alerting the operator at a predetermined timing. An object of the present invention is to provide an image forming apparatus that makes it possible.

In other words, the image forming apparatus of the present invention controls the image forming unit that forms an image on a sheet based on JOB, and the operation of each unit in the image forming apparatus, and enables automatic adjustment and manual adjustment for one or more operation items. A control unit, and an operation display unit that displays information and receives an operation input by an operator,
The control unit enables selection of the automatic adjustment and the manual adjustment for the operation item via the operation display unit, and when the manual adjustment is selected, the switching of the paper or the switching of the JOB is performed. At a timing, an operation button for determining whether or not to continue the manual adjustment is displayed on the operation display unit as a display for prompting a determination regarding the change of the manual adjustment .
An image forming apparatus according to another aspect of the present invention controls an image forming unit that forms an image on a sheet based on JOB and operations of each unit in the image forming device, and performs automatic adjustment and manual operation for one or more operation items. A control unit that enables adjustment, and an operation display unit that displays information and receives an operation input by an operator,
The control unit enables selection of the automatic adjustment and the manual adjustment for the operation item via the operation display unit, and when the manual adjustment is selected, the switching of the paper or the switching of the JOB is performed. At the timing, the operation display unit displays a display for prompting determination regarding the change of the manual adjustment, and the advice display regarding the manual adjustment is performed according to the operation condition of the apparatus. The advice display includes the operation items to be adjusted. In the case of adjusting the air volume of the fixing air separation fan, the relationship between the image density, the fixing wrinkles, the fixing separation property, and the winding around the fixing roller is displayed.

According to the present invention, when automatic adjustment is selected for one or more operation items, the operator is required to determine whether to change the manual adjustment in the operation display unit when the paper is switched or JOB is switched. The manual adjustment can be prevented from continuing.
In paper switching and JOB switching, there is a high ratio in which adjustment of operation items is required due to changes in the paper type, and it is effective to perform a display requesting the above determination at this timing.
The paper switching timing includes no paper and automatic paper feed tray switching. Moreover, the start timing of a new job can be cited as a job switching timing.
In the present invention, the present invention can be suitably applied to those that are automatically adjusted and manually adjusted according to the type of paper, but the present invention is not limited to this, and each of them is independent of the type of paper. Operation items may be automatically adjusted and manually adjusted.

Examples of the manual adjustment change include whether or not the manual adjustment can be continued and whether or not the manual adjustment content is changed. The display related to the change may be able to set display contents for each action item, or may be the same display contents for all action items.
Whether the display is performed at the timing may be set, or the setting may be performed for each of the one or more operation items.
Thereby, it can be avoided that the display is always performed at the above timing and the operator feels bothersome. Further, by making it possible to set whether or not display is possible depending on the operation item, it is possible to display important items and to prevent the above items from being displayed when the importance level is low.

In the manual adjustment, the adjustment range may be wider than the automatic adjustment or the adjustment may be performed in more detail than the automatic adjustment so that the adjustment can be performed more appropriately.
The operation items that can be manually adjusted are typically those adjusted according to the type of paper as described above, but the operation items are not limited to specific items in the present invention. Specifically, adjustment of the amount of air blown during feeding, adjustment of the air volume of the fixing air separation fan, adjustment of the decurling amount of the decurler, adjustment of the humidity of the humidifier, adjustment of the sensitivity of the color sensor, or adjustment of the printing magnification on the front and back of the paper Etc. are exemplified.

When the display for prompting the determination is performed, an advice display regarding manual setting may be performed according to the operation condition of the apparatus. Thereby, the operator can easily perform manual adjustment according to the advice.
The advice may be displayed when continuation of manual adjustment is selected or when changing the contents of manual adjustment is selected.
The advice may be displayed as one or more of the operation items to be manually adjusted, and the displayed operation items may be settable.
The content of the manual adjustment on which the advice display is made is not particularly limited. As a specific example, for example, when the operation item to be adjusted is the air volume adjustment of the fixing air separation fan, there is one that displays the relationship between the image density, the fixing wrinkle, the fixing separation property, and the winding around the lower roller.

As described above, according to the image forming apparatus of the present invention, an image forming unit that forms an image on a sheet based on JOB and operations of each unit in the image forming apparatus are controlled, and one or more operation items are automatically adjusted. And a control unit that enables manual adjustment, and an operation display unit that displays information and receives an operation input by an operator, and the control unit performs the operation on the action item via the operation display unit. The automatic adjustment and the manual adjustment can be selected, and when the manual adjustment is selected, the operation display unit is prompted to make a determination regarding the change of the manual adjustment at the timing of the paper switching or the JOB switching. as a display, since the display of the operation buttons that said manual operator whether to continue adjustment is determined, the appropriate data when the manual adjustment has been selected for one or more action items Judgment regarding changes in manual adjustment is requested through the operation display unit, and manual adjustment is prevented from being continued with inappropriate contents and setting omissions are prevented, and unnecessary JAM and output paper wrinkles are prevented. It is possible to reliably reduce the occurrence of image defects and maintain good image forming quality.
Further, according to another form of the image forming apparatus, at the timing, advice display regarding manual adjustment is performed according to the operation state of the apparatus, and the operation item to be adjusted is that the operation item to be adjusted is the fixing air separation fan. In the case of air volume adjustment, since the relationship between image density, fixing wrinkles, fixing separability and winding around the fixing roller is displayed, the operator manually adjusts the air volume of the fixing air separation fan according to the advice display. Can be easily performed.

It is the schematic which shows the mechanical structure in one Embodiment of this invention. Similarly, it is a figure which shows a control block. Similarly, it is a figure which shows the adjustment setting screen by the automatic or manual of fixing air separation fan air volume in an operation display part. Similarly, it is a figure which shows the inquiry screen regarding the change of the manual adjustment in an operation display part. Similarly, it is a figure which shows the inquiry display availability screen in an operation display part. Similarly, it is a flowchart showing a part of a job processing procedure when manual adjustment is performed. Similarly, it is a flowchart showing a part of a job processing procedure when manual adjustment is performed. Similarly, it is a figure which shows an example of the advice display screen in an operation display part.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a diagram showing a mechanical configuration of an image forming apparatus 1 according to the present invention, and includes an image forming apparatus main body A, a humidifying apparatus B, and a post-processing apparatus C.
In this embodiment, an image forming apparatus including a humidifying device and a post-processing device will be described. However, the present invention does not include a humidifying device and a post-processing device, and the image forming device is configured by a single image forming apparatus main body. It may be done.

The image forming apparatus main body A includes an image reading unit 11, an image processing unit 12, an image writing unit 13, an image forming unit 14, a paper feeding cassette 15, a paper feeding conveyance unit 16, a fixing device 17, a conveyance reversing unit 16a, and paper discharge. A roller 18 is provided.
An automatic document feeder ADF is mounted on the upper part of the image forming apparatus main body A, and an operation display unit 19 is disposed on the side of the automatic document feeder ADF.
A humidifier B is connected to the left side of the image forming apparatus main body A shown in the figure on the sheet discharge roller 18 side.

The document placed on the document table of the automatic document feeder ADF is conveyed in the direction of the arrow, and an image of the document is formed on the CCD image sensor 11A by the optical system of the image reading unit 11 and read.
The analog signal photoelectrically converted by the CCD image sensor 11A is subjected to analog processing, A / D conversion, shading correction, image compression processing, and the like in the image processing unit 12, and then sent to the image writing unit 13.

At the time of image formation, output light corresponding to the document image is emitted from the semiconductor laser of the image writing unit 13 and irradiated to the photosensitive drum 14A of the image forming unit 14 to form a latent image. In the image forming unit 14, processes such as charging, exposure, development, transfer, separation, and cleaning are performed.
The paper feed fan 15a is disposed in the paper feed cassette 15, and paper is fed while being fed by the paper blower fan 15a. The sheet S1 fed from the sheet feeding cassette 15 by the sheet feeding unit 16 abuts on the photosensitive drum 14A in which the latent image is converted into a toner image by development processing, and the toner image is transferred by the transfer unit 14B.

The sheet S1 carrying the toner image is fixed by the fixing device 17. The fixing device 17 is provided with a fixing air separation fan 17a that blows air toward the fixing roller to separate the paper. The fixing air separation fan 17a prevents the paper from being wound around the fixing roller by blowing air. The paper S1 on which the toner image is fixed by the fixing device 17 is conveyed to the reversing unit 16a as desired, and the image on the back surface side. Formation is made.
The paper on which image formation has been completed is conveyed to the paper discharge roller 18 side. On the paper discharge roller 18 side, a decurler (not shown) for decurling (curling removing) the paper is provided if desired. The sheet S1 is sent from the paper discharge roller 18 to the humidifier B.
Note that a color sensor that detects an image of a sheet on which the toner image is fixed by the fixing device 17 may be provided, and image formation control such as density adjustment may be performed by feeding back the output of the color sensor.

  The operation display unit 19 can display various kinds of information, and further enables operation input by the operator. In this embodiment, the operation display unit 19 is configured by a touch panel or the like to enable display and operation. However, the operation display unit may include an operation unit and a display unit separately. .

The humidifier B is connected to the downstream side of the image forming apparatus main body A, and is formed by fixing the image forming apparatus main body A by applying water to both surfaces of the sheet S1 sent out from the image forming apparatus main body A and humidifying it. Remove curled paper.
When the humidification process is not performed on the sheet S1, the sheet S1 is guided to the sheet conveyance path H01 and sent to the post-processing device C. When the humidification process is performed, the sheet S1 is passed through the sheet conveyance path H02 having the humidification unit 20. Guide it to progress.

The post-processing apparatus C includes a paper carry-in unit 31, a post-processing unit 32 that performs post-processing, a plurality of transport paths H11 and H12, and a main tray 33 and a sub-tray 34 as a plurality of paper discharge destinations.
The paper carry-in unit 31 receives the paper ejected from the image forming apparatus main body A, and transports the paper in the transport path H11 or the transport path H12.
Examples of the post-processing unit 32 include a punching processing unit, an overlay processing unit, a folding processing unit, and a binding processing unit. The paper that has been post-processed by the post-processing unit 32 or the paper that has not been post-processed is discharged to the main tray 33 or the sub-tray 34.

FIG. 2 is a diagram showing some control blocks in the image forming apparatus 1 of the present invention.
The control unit 2 controls the entire image forming apparatus 1 and performs control including adjustment of operation of each unit. The control unit 2 is mainly composed of a CPU and a program for operating the CPU.

  The image reading unit 11 is connected to the control unit 2 in a controllable manner. The image reading unit 11 reads an image of a document under the control of the control unit 2 and acquires image data by the CCD image sensor 11A. When the automatic document feeder ADF is used, the control unit 2 controls the automatic document feeder ADF, reads the image of the document while automatically feeding the document, and acquires image data. Image reading can be started by a user's operation, and can be set to automatically start image reading by setting a document on the automatic document feeder ADF.

An image processing unit 12 is connected to the control unit 2, and the image processing unit 12 performs analog processing, A / D conversion, shading correction, image compression on the image data acquired by the image reading unit 11. Image processing such as processing is performed.
An image forming unit 14 is controllably connected to the control unit 2, and an image is formed by the image forming unit 14 based on the image data, and the image is transferred and fixed on a sheet.
Further, the operation display unit 19 is connected to the control unit 2 in a controllable manner. The operation display unit 19 may include a display unit and an operation unit individually, or may be configured by a touch panel or the like in which the display unit and the operation unit are integrated.

  In addition, the storage unit 3 is connected to the control unit 2 in a controllable manner. The storage unit 3 includes a nonvolatile memory such as a RAM or HDD that stores image data or the like, or a flash memory that stores operation parameters of the apparatus. In the storage unit 3, the automatic adjustment content in each part operation item associated with the paper type, the printing rate, etc., the automatic adjustment in each part operation item, whether manual adjustment is possible, the contents of the set automatic adjustment or the manual adjustment content Etc. are stored.

  The control unit 2 is connected to an IO unit 4 so that data can be input / output to / from each unit in the apparatus. The IO unit 4 is connected to, for example, the paper-making fan 15a, the fixing air separation fan 17a, the decurler, the color sensor, the humidifying unit 20, and the like, and can be controlled by the control unit 2.

In the control unit 2, the operation of each unit is automatically adjusted through the IO unit 4 with the operation of the apparatus. In the automatic adjustment, control using operation parameters stored in the storage unit 3 is performed according to the type of paper, the printing rate in the JOB data, and the like.
In addition, manual adjustment can be performed for some or all of the operation items of the above-described units. Whether or not manual adjustment is possible is stored in the storage unit 3, and the operator may be able to change the setting of whether or not manual adjustment is possible for each action item. The setting change is performed through the operation display unit 19.

Further, in the menu display of the operation display unit 19 or the like, it is possible to select manual adjustment for each part operation item and set the adjustment content.
FIG. 3 shows a setting screen 100 for adjusting the air volume of the fixing air separation fan 17a. The setting screen includes an automatic adjustment button 101 and a manual adjustment button 102, an air volume display unit 103 indicating the adjustment amount, an increase button 104 for increasing the air volume, a decrease button 105 for decreasing the air volume, an OK button 106, and a cancel button 107. , A return button 108 is provided.
When the automatic adjustment button 101 is pressed, the control unit 2 reads the air volume adjustment value from the storage unit 3 in accordance with the type of paper, the printing rate, etc., and displays it on the air volume display unit 103. The air volume display unit 103 performs “% display” with respect to the maximum air volume. When the OK button 106 is pressed in this state, the air volume of the fixing air separation fan 17a is adjusted by the automatic adjustment amount. In the initial setting, automatic adjustment is set.

  On the other hand, when the manual adjustment button 102 is pressed, the air volume is displayed on the air volume display unit 103 by the automatic adjustment amount, and the air volume can be adjusted by pressing the increase button 104 or the decrease button 105. If the OK button 106 is pushed in a state where a predetermined air volume has been reached, manual adjustment is made according to the air volume, and the adjustment amount is fixed to the air volume. On the other hand, when the cancel button 107 is pressed, the increased / decreased air volume is canceled and returned to the initially displayed air volume and displayed on the air volume display section. When the return button 108 is pressed, settings relating to adjustment are not made, and the screen returns to the upper menu screen or the like.

  In the above adjustment, the adjustment width may be different between automatic adjustment and manual adjustment. For example, when adjusting the air volume of the fixing air separation fan 17a, the adjustment range is regulated to 30 to 80% in the automatic adjustment, and the adjustment range is set to 10 to 100% in the manual adjustment. Further, the degree of detail of adjustment may be different between automatic adjustment and manual adjustment. For example, in automatic adjustment, the adjustment amount may be adjusted in units of 5%, whereas in manual adjustment, adjustment may be made in units of 1%.

  When the manual adjustment is selected as described above, the control unit 2 controls the operation of the part while fixing the manual adjustment value. In the present invention, when manual adjustment is selected for one or more operation items of each unit, an inquiry display for requesting determination regarding manual adjustment change is displayed on the operation display unit 19 at the time of paper switching or JOB switching. Do.

FIG. 4 is an inquiry screen 110 in which an inquiry regarding a change in manual adjustment is made, and is displayed on the operation display unit 19.
The inquiry screen 110 has an operation item display column 111 that displays the contents of the operation item that has been manually adjusted, and an adjustment value display column 112 that indicates a manual adjustment value.
Further, the inquiry screen 110 includes a manual adjustment continuation button 113, a manual adjustment content change button 114, an automatic adjustment return button 115, and an OK button 116.

  When the inquiry screen 110 is displayed at the timing, the operator needs to determine whether or not to continue the manual adjustment and whether or not there is a change in the adjustment when the manual adjustment is continued. When the manual adjustment is continued as it is, the operator presses the manual adjustment continue button 113 and then presses the OK button 116, so that the manual adjustment is continued as it is and the job processing is continued. On the other hand, when the automatic adjustment return button 115 is pushed and the OK button 116 is pushed further, the manual adjustment is canceled and the automatic adjustment is restored. The control unit 2 changes the adjustment value as necessary by the automatic adjustment, and continues the job processing.

When the manual adjustment content change button 114 is pressed and the OK button 116 is pressed, a screen for changing the manual adjustment value is displayed via the operation display unit 19 as shown in FIG. The value can be changed and JOB processing can be continued.
The above determination can be made for each operation item of each part that is manually adjusted. Accordingly, there is a possibility that any of the manual adjustment continuation, manual adjustment content change, and automatic adjustment return is selected for each operation item. In the present invention, manual adjustment continuation and automatic adjustment return may be selected collectively instead of for each operation item. In changing manual adjustment contents, the adjustment value is changed for each operation. It may be.

  Further, when manual adjustment is selected, it may be possible to set so as not to display an inquiry at the above timing, and it may be possible to set whether or not to display an inquiry for each operation item.

  FIG. 5 shows an inquiry display availability screen 120 for setting whether to make an inquiry or display a screen for each operation item, and can be displayed as a lower screen of the setting screen. By selecting whether or not to display an inquiry from the setting screen, the screen is displayed on the operation display unit 19 so as to be operable.

  On the inquiry display enable / disable screen 120, a display ON button 121 and a display OFF button 122 are prepared for each operation item, and an OK button 123, a cancel button 124, and a return button 125 are displayed to be pushable. . For example, in the initial setting, display ON is set for all operation items. When the display OFF button 122 is pressed for any operation item and the OK button 123 is pressed, manual adjustment is selected for the operation item. Even at the above timing, the inquiry screen regarding the manual adjustment display is not displayed, and the manual adjustment is continued as it is.

When the display ON button 121 is pressed for the operation item for which display OFF is set and the OK button 123 is pressed, manual adjustment is selected for the operation item, and when the above timing is reached, the manual adjustment is displayed. An inquiry screen about is displayed.
When the return button 125 is pressed, the setting screen is returned to the upper setting screen without changing the setting.
When the cancel button 124 is pressed, the content operated on the screen is canceled and the initial setting content of the screen display is restored.

Next, a job processing procedure when manual adjustment is performed will be described with reference to the flowcharts of FIGS. The following processing procedure is executed under the control of the control unit 2.
First, as a job switch, a new job starts and a job setting by the user is accepted (step s1). In this setting, the paper type and the printing rate are set. Next, it is determined whether or not the manual adjustment mode is set in the previous job (step s2). If manual adjustment is not selected in the previous job (step s2, NO), this process is terminated.
If manual adjustment is selected in the previous job (step s2, YES), an inquiry regarding the change in manual adjustment is displayed on the operation display unit 19 (step s3). An example of the inquiry screen is shown in FIG. In the inquiry, a display requesting a determination as to whether or not manual adjustment settings are continued and whether or not manual adjustment contents are changed is displayed. .

An operator (user) operation input for the inquiry is made, and as a result, it is determined whether or not the adjustment mode has been changed (step s4). If continuation of manual adjustment is selected and the adjustment mode is not changed (step s4, NO), the manual adjustment setting of the previous job is continued as it is, and JOB is started (step s8).
If there is a change in the adjustment mode (step s4, YES), it is determined whether or not the automatic adjustment mode has been changed (step s5). If the setting has been changed to the automatic adjustment mode (step s5, YES), the automatic adjustment setting is changed to start JOB (step s6). If the setting has not been changed to the automatic adjustment mode (NO in step s5), the manual adjustment content change is selected, the content change is set, and JOB is started (step s7).

  After the processing in steps s6 to s8, it is determined whether or not a paper out has occurred in the paper feed tray during execution of JOB (step s9). If no paper has occurred (NO in step s9), the process proceeds to a job end determination process (step s19). If no paper has occurred (step s9, YES), it is determined whether the ATS setting is on (step s10). ATS (Auto Tray Switch: Automatic Paper Feed Tray Switch) is a function that automatically switches to a paper feed tray that contains the same paper and keeps feeding when there is no paper in the paper feed tray. It is. In the control unit 2, it is possible to set whether or not automatic paper feed tray switching is performed when there is no paper, and the setting content is stored in the storage unit 3, and the setting content is set as necessary. Is read out. Note that automatic paper feed tray switching is performed when there is no paper, and when a predetermined number of sheets remain in the paper feed tray, such as when a predetermined number of sheets are fed. There may be.

If it is determined that the ATS is not set after determining the absence of paper (step s10, NO), the operator (user) supplies paper to the same tray (step s11), and the process proceeds to the next step s12. To do. If the ATS setting is set (step s10, YES), the process proceeds to step s12.
In step s12, it is determined whether or not the manual adjustment setting mode is selected. If the manual adjustment setting mode is not selected (step s12, NO), the process proceeds to the job end determination process (step s19).
If the manual adjustment setting mode is selected (step s12, YES), an inquiry relating to a change in manual adjustment is displayed on the operation display unit 19 as in step s3 (step s13). In the inquiry, a display requesting a determination as to whether or not manual adjustment settings are continued and whether or not manual adjustment contents are changed is displayed.

In the above display, the user makes a selection, and as a result, it is determined whether or not there is a change in the adjustment mode (step s14). The change of the adjustment mode is a change from manual adjustment to automatic adjustment, or a change in manual adjustment. If the continuation of manual adjustment is selected and the adjustment mode is not changed (NO in step s14), the manual adjustment setting is continued as it is and the job is restarted (step s18). If there is a change in the adjustment mode (step s14, YES), it is determined whether or not the automatic adjustment mode has been changed (step s15). If the setting has been changed to the automatic adjustment mode (step s15, YES), the automatic adjustment setting is changed to resume the job (step s16). If the setting has not been changed to the automatic adjustment mode (NO in step s15), manual adjustment content change is selected, the content change is set, and JOB is restarted (step s17).
After steps s16 to s18, the end of JOB is determined in step s19.
If the job has not ended in step s19 (step s19, NO), the process returns to step s9 and the above process is repeated. If it is determined in step s19 that the JOB has been completed (step s19, YES), this process ends.
As described above, the operator (user) makes a determination regarding the change of the manual adjustment at the JOB switching timing and the paper switching timing.

  Although not described in the above flowchart, advice regarding manual adjustment may be displayed when a determination regarding change in manual adjustment is obtained. The advice display may be set to enable / disable display for each operation item. In the present invention, advice display may not be performed.

FIG. 8 shows an example of the advice display screen 130, which is displayed on the operation display unit 19.
That is, the advice display screen 130 is based on the premise that the manual adjustment item is the air volume adjustment of the fixing air separation fan. Confirmation of continuation of manual adjustment setting at the timing of paper switching or JOB switching, and manual adjustment advice on image density, fixing wrinkles, fixing separation, and caution about winding around the lower roller are displayed on the advice display screen 130 To do. When the image density is expected to change significantly when switching JOBs, it is useful to display the above relationship as advice, especially when the current JOB is in a shaded disadvantageous area and special settings are made. is there. The user should just look at this screen and adjust the air volume of the fixing air separation fan so that the fixing separation property and the occurrence of curl wrinkles are advantageous from the viewpoint of the image density.
Further, since the state of fixing separation and curl wrinkles changes depending on the type of paper, the content of the advice display screen 130 is prepared according to the type of paper. The data of the screen content is stored in the storage unit 3 and read by the control unit 2 as necessary.
Note that the advice display may be set to enable or disable display for each operation item.

  As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to the content of the said embodiment, A suitable change is possible unless it deviates from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Image forming apparatus 2 Control part 3 Memory | storage part A Image forming apparatus main body B Humidification apparatus C Post-processing apparatus 19 Operation display part

Claims (14)

An image forming unit that forms an image on a sheet based on JOB, a control unit that controls the operation of each unit in the image forming apparatus and enables automatic adjustment and manual adjustment for one or more operation items, and information display And an operation display unit that receives an operation input by an operator and
The control unit enables selection of the automatic adjustment and the manual adjustment for the operation item via the operation display unit, and when the manual adjustment is selected, the switching of the paper or the switching of the JOB is performed. An image forming apparatus characterized in that an operation button for determining whether or not to continue the manual adjustment is displayed on the operation display unit as a display prompting a determination regarding the change of the manual adjustment at a timing. An image forming unit that forms an image on a sheet based on JOB, a control unit that controls the operation of each unit in the image forming apparatus and enables automatic adjustment and manual adjustment for one or more operation items, and information display And an operation display unit that receives an operation input by an operator and
  The control unit enables selection of the automatic adjustment and the manual adjustment for the operation item via the operation display unit, and when the manual adjustment is selected, the switching of the paper or the switching of the JOB is performed. At the timing, the operation display unit displays a display for prompting determination regarding the change of the manual adjustment, and the advice display regarding the manual adjustment is performed according to the operation condition of the apparatus. The advice display includes the operation items to be adjusted. An image forming apparatus characterized by displaying a relationship between image density, fixing wrinkles, fixing separation property, and winding around a fixing roller in the case of air volume adjustment of a fixing air separation fan. The control unit displays an advice regarding manual adjustment according to an operation condition of the apparatus when displaying an operation button for an operator to determine whether or not to continue the manual adjustment on the operation display unit. The image forming apparatus according to claim 1 . The image forming apparatus according to claim 2 , wherein the control unit can set whether or not the advice display is possible for each operation item that can be manually adjusted. The image forming apparatus according to claim 1, wherein the determination regarding the change of the manual adjustment is whether or not the manual adjustment can be continued and whether or not the manual adjustment content is changed. 5. The image forming apparatus according to claim 2, wherein the determination regarding the change in the manual adjustment is whether or not the manual adjustment can be continued and / or whether or not the manual adjustment content is changed. . Wherein the control unit, the image forming apparatus according to claim 1, characterized in that one or more of the can be set to display a content urging the determination for each action item. Wherein the control unit, the image forming apparatus according to any one of claims 1 to 7, characterized in that at the timing can be set whether or not to display prompting the decision. The image forming apparatus according to claim 8 , wherein the control unit can perform the setting for each of one or more of the operation items. Wherein the control unit, the image forming apparatus according to the adjustment range of the manual adjustment for one or more of the action items to any one of claims 1 to 9, characterized in that wider than the adjustment range of the automatic adjustment . Wherein the control unit, the image forming apparatus according to the manual adjustment for one or more of the action items to any one of claims 1-10, characterized in that the adjustable detail than the automatic adjustment. The timing, the image forming apparatus according to any one of claims 1 to 11, wherein the paper without, or a timing of the timing or new JOB start of automatic paper feed tray switching. The operation items that can be manually adjusted include paper blowing air volume adjustment during feeding, fixing air separation fan air volume adjustment, decurler decurl volume adjustment, humidifier humidity adjustment, color sensor sensitivity adjustment, or paper front / back adjustment. the image forming apparatus according to any one of claims 1 to 12, characterized in that it comprises one or more adjusting the printing magnification. The automatic adjustment and manual adjustment, the image forming apparatus according to any one of claims 1 to 13, characterized in that the adjustment in accordance with the type of paper is performed.

Images