JP6939288B2 - Aftertreatment device - Google Patents

Description

The present invention relates to an aftertreatment device.

Conventionally, an aftertreatment device having a function of removing static electricity from a cut area by selectively humidifying the cut area before cutting a print medium such as paper has been proposed (see, for example, Patent Document 1). Further, a post-treatment device having a function of removing static electricity from the waste by humidifying the waste due to cutting before being stored in the container has also been proposed (see, for example, Patent Document 2). In addition, a post-treatment device that reduces the post-treatment load by humidifying has also been proposed (see, for example, Patent Document 3). In addition, a post-treatment device that controls the amount of humidification based on the paper type of the print medium has also been proposed (see, for example, Patent Document 4).

Japanese Unexamined Patent Publication No. 2013-256339 Japanese Unexamined Patent Publication No. 2017-076018 JP-A-2015-127116 JP-A-2017-007785

However, in the prior art as described in Patent Documents 1 to 4, the humidification amount is controlled based on the input set value by the user. Therefore, for example, the input set value is erroneously input or is forgotten to be input in the first place. May occur. Therefore, it is assumed that the print medium in the paper cassette and the input set value are different. Therefore, excessive moisture may be imparted to the print medium. In such a case, the print medium is statically eliminated, but the flatness of the print medium deteriorates, which may reduce the transportability of the print medium.

The present disclosure has been made in view of such a situation, and makes it possible to prevent deterioration of the transportability of the print medium while eliminating static electricity from the print medium.

The post-treatment device, which is one aspect of the present disclosure, is a post-treatment device for post-treating the print medium by the post-treatment section, and includes a humidifying section provided on the upstream side of the post-treatment section and humidifying the print medium. A detection unit provided on the upstream side of the humidifying unit to detect the water content of the print medium, the water content of the print medium detected by the detection unit, the processing time required for the post-treatment, and the processing time. The processing information includes a control unit that controls the amount of humidification that the humidifying unit humidifies based on a threshold time that is an index for determining the load required for the post-processing based on the processing information. When the water content is less than the standard set value, the humidified portion is used to increase the humidified amount, and when the water content is equal to or more than the standard set value and the treatment time does not exceed the threshold time. , without humidification by the humidifying unit, when the processing time the water content is not more than the standard setting value exceeds the threshold time, Ru increases the amount of humidification by the humidifying unit.

Further, the processing information includes information regarding at least one processing type of drilling processing, binding processing, cutting processing, and folding processing as processing type information executed by the post-processing, and the control unit , It is preferable to control the humidification amount based on the treatment type information.

Further, the print medium includes a post-treatment area that is a range to be subjected to the post-treatment and a non-post-treatment area that is an exclusive range from the post-treatment area, and the control unit is used for the humidification. It is preferable to specify the portion where the portion is humidified in the post-treatment region.

Further, the other post-processing apparatus of the present disclosure is a post-processing apparatus for post-processing the print medium by the post-processing unit, and includes a humidifying unit provided on the upstream side of the post-processing unit and humidifying the print medium. wherein provided on the upstream side of the humidifying portion, and a detector for detecting the moisture content of the print medium, the water content of the printing medium detected by the detecting unit, the operating current in accordance with the after treatment, and the operation The control unit includes a control unit that controls the amount of humidification that the humidifying unit humidifies based on a threshold current that is an index for determining the load required for the post-treatment based on the current, and the control unit has a standard water content. If it is less than the set value, the humidifying amount is increased by the humidifying part, and if the water content is equal to or more than the standard set value and the operating current does not exceed the threshold current, the humidifying part humidifies the humidifying part. without, if the operating current the water content is not more than the standard setting value exceeds the threshold current, Ru increases the amount of humidification by the humidifying unit.

The control unit, when the after treatment is binding Ji processing, controls the humidification amount per one superposing each of the print medium, it is preferable.

Further, the print medium bundle formed from the print medium by the binding process includes the top-level paper at the top of the print media, the bottom-level paper at the bottom of the print media, and the top-level paper. The intermediate paper is at least one sheet of the printing medium, and the control unit has the highest paper and the highest paper as compared with the intermediate paper. It is preferable to reduce the amount of humidification of the lower paper.

Further, the other post-processing apparatus of the present disclosure is a post-processing apparatus for post-processing the print medium by the post-processing unit, and includes a humidifying unit provided on the upstream side of the post-processing unit and humidifying the print medium. A detection unit provided on the upstream side of the humidifying unit to detect the water content of the print medium, the water content of the print medium detected by the detection unit, and the hole when the post-treatment is a drilling process. The control unit includes a control unit that controls the amount of humidification that the humidifying unit humidifies based on the number of holes in the drilling process and the number of threshold holes that serve as an index for determining the load required for the drilling process. When the water content is less than the standard set value, the humidified portion is used to increase the humidified amount, and the water content is equal to or higher than the standard set value and the number of holes by the drilling process is the threshold number of holes. If it does not exceed, the humidifying section does not humidify, and if the water content is equal to or higher than the standard set value and the number of holes by the drilling process exceeds the threshold number of holes, the humidifying section is used. the humidification amount of Ru is increased.

Further, the other post-processing apparatus of the present disclosure is a post-processing apparatus for post-processing the print medium by the post-processing unit, and includes a humidifying unit provided on the upstream side of the post-processing unit and humidifying the print medium. A detection unit provided on the upstream side of the humidifying unit to detect the water content of the print medium, the water content of the print medium detected by the detection unit, and the cutting process when the post-processing is a cutting process. cutting sheets by, and on the basis of the threshold number as an index for determining the load required for the cutting process, and a control unit for controlling a humidification amount of the humidification unit for humidifying, the control unit, the water content When is less than the standard set value, the humidifying amount is increased by the humidifying portion, and when the water content is equal to or more than the standard set value and the number of sheets cut by the cutting process does not exceed the threshold number. without humidification by the humidifier, the water content is not more than the standard set value, when cutting sheets by the cutting process exceeds the threshold number of sheets, Ru increases the amount of humidification by the humidifying unit.

Further, the other post-processing apparatus of the present disclosure is a post-processing apparatus for post-processing the print medium by the post-processing unit, and includes a humidifying unit provided on the upstream side of the post-processing unit and humidifying the print medium. A detection unit provided on the upstream side of the humidifying unit to detect the water content of the print medium, the water content of the print medium detected by the detection unit, and the folding process when the post-processing is a folding process. The control unit includes a control unit that controls the amount of humidification that the humidifying unit humidifies based on the image density of the folding portion and the threshold density that is an index for determining the load required for the folding process. When the water content is less than the standard set value, the humidified portion is used to increase the humidified amount, and when the water content is equal to or higher than the standard set value, the image density of the folded portion by the folding process sets the threshold time. if not exceeded, without humidification by the humidifier, the water content is not more than the standard set value, when the image density of the portion folded by the folding process exceeds the threshold concentration, by the humidifying part Ru increases the amount of humidification.

According to one aspect of the present disclosure, it is possible to prevent deterioration of the transportability of the print medium while eliminating static electricity from the print medium.

It is a figure which shows the whole configuration example of the image forming apparatus 1 and the post-processing apparatus 7 provided in the image forming system which concerns on embodiment to which this disclosure is applied. It is a block diagram which shows the functional structure example of the image formation system which concerns on embodiment to which this disclosure is applied. It is a figure which shows an example of the humidification control table 7021 based on the water content of the print medium P which concerns on the embodiment to which this disclosure is applied, and the drilling process. It is a figure which shows an example of the humidification control table 7021 based on the water content of the print medium P which concerns on the embodiment to which this disclosure is applied, the drilling process, and the process time. It is a figure which shows an example of the humidification control table 7021 based on the water content of the print medium P and the binding process which concerns on embodiment to which this disclosure is applied. It is a figure which shows an example of the humidification control table 7021 based on the water content of the print medium P which concerns on the embodiment to which this disclosure is applied, the binding process, and the process time. It is a figure which shows an example in which the humidification amount is variable in the humidification control table 7021 based on the water content, the binding process, and the processing time of the print medium P which concerns on embodiment to which this disclosure is applied. It is a figure which shows the control example of the humidification amount for each print medium P in the binding process which concerns on embodiment to which this disclosure is applied. It is a flowchart explaining the control example of the pre-processing which concerns on embodiment to which this disclosure is applied. It is a flowchart explaining the control example of the hole drilling processing among the post-processing which concerns on embodiment to which this disclosure is applied. It is a flowchart explaining the control example of the cutting process among the post-process which concerns on embodiment to which this disclosure is applied. It is a flowchart explaining the control example of the folding process among the post-processing which concerns on embodiment to which this disclosure is applied. It is a flowchart explaining the control example of the binding processing among the post-processing which concerns on embodiment to which this disclosure is applied.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings, but the present disclosure is not limited to the following embodiments. It should be noted that, as used in the description of embodiments of the present disclosure, "consisting", "consisting of", "including", "including", "having", "providing" or any other of them. Synonyms are intended to cover non-exclusive inclusion relationships. For example, a process, method, article or device that includes an enumeration of elements does not necessarily have to be limited to those elements, but other elements that are not explicitly enumerated or should be inherent. It may be included in such a process, method, article or device. Moreover, unless explicitly stated, "or" is inclusive and not an exclusive sum. For example, "condition A or B" is satisfied in any case where A exists and B does not exist, A does not exist and B exists, and both A and B exist. Is.

The present disclosure also relates to devices that perform the processes described herein. The device may be specially constructed according to the required purpose, or may be constructed of a general-purpose computer that is selectively activated or reconfigured by a computer program stored in the computer.

Also, the algorithms described herein are not unique to any particular computer or other device. You may find it convenient to build more specialized equipment so that various general purpose systems can be used with programs according to what is taught here, or to perform the required method steps. The structure required for these various systems will become clear from the explanation below. Moreover, this disclosure does not depend on any particular programming language. It will be appreciated that various programming languages may be used to implement the teachings of the present disclosure described herein.

FIG. 1 is a diagram showing an overall configuration example of an image forming apparatus 1 and a post-processing apparatus 7 included in the image forming system according to the embodiment to which the present disclosure is applied. FIG. 2 is a block diagram showing a functional configuration example of the image forming system according to the embodiment to which the present disclosure is applied. FIG. 3 is a diagram showing an example of a humidification control table 7021 based on the water content of the print medium P and the drilling process according to the embodiment to which the present disclosure is applied. FIG. 4 is a diagram showing an example of a humidification control table 7021 based on the water content of the print medium P, the drilling treatment, and the treatment time according to the embodiment to which the present disclosure is applied. FIG. 5 is a diagram showing an example of a humidification control table 7021 based on the water content of the print medium P and the binding process according to the embodiment to which the present disclosure is applied. FIG. 6 is a diagram showing an example of a humidification control table 7021 based on the water content of the print medium P, the binding process, and the process time according to the embodiment to which the present disclosure is applied. FIG. 7 is a diagram showing an example in which the humidification amount is variable in the humidification control table 7021 based on the water content, the binding process, and the processing time of the print medium P according to the embodiment to which the present disclosure is applied. FIG. 8 is a diagram showing an example of controlling the amount of humidification for each print medium P in the binding process according to the embodiment to which the present disclosure is applied.

As shown in FIG. 1, the image forming apparatus 1 includes a reading unit 10, a paper feeding unit 20, and an image forming unit 30. The paper feed unit 20 includes a paper feed cassette 21, a paper feed transfer unit 22, and a secondary transfer unit 24. The paper cassette 21 can accommodate print media P having different sizes. The paper feed transport unit 22 includes various rollers and transports the print medium P housed in the paper feed cassette 21 or the print medium P supplied from the outside to the image formation position of the image forming unit 30. A secondary transfer unit 24 is provided at the image forming position. The secondary transfer unit 24 comes into contact with the primary transfer belt 34 rotated by the secondary transfer opposed roller 341 to form a transfer nip. The secondary transfer unit 24 includes a secondary transfer roller 241, and the secondary transfer belt is wound around the secondary transfer roller 241 and the like.

The print medium P is, for example, paper or long paper. The paper is, for example, a single sheet, glossy paper, continuous paper having holes formed at both ends at a constant pitch, or the like. The image forming unit 30 includes an exposure device 31, a photosensitive drum 32, a developing device 33, a primary transfer belt 34, and a fixing unit 35. The image forming unit 30 supplies toners of different colors to the photosensitive drum 32 by the exposure apparatus 31 based on the image data of the original document read by the reading unit 10 to develop the image. The image forming unit 30 transfers the toner image developed on the photosensitive drum 32 by the primary transfer belt 34 to the paper feeding unit 20 or the print medium P supplied from the outside via the secondary transfer unit 24. The image forming unit 30 fixes the toner image on the print medium P by melting the toner of the toner image transferred to the print medium P by the primary transfer belt 34 and the secondary transfer unit 24 at the fixing unit 35.

The reading unit 10 includes an ADF 10A and an image reading unit 10B. The ADF10A includes a document tray 11, a paper ejection tray 12, a paper passing path 13, a close contact type image sensor 14, a density reference member 15, and the like. The concentration reference member 15 is used at the time of shading correction of ADF10A. The image reading unit 10B includes a document lighting unit 42, a reflection mirror 43, a condenser lens 44, a line image sensor 45, a platen glass 46, and the like. The scanning unit 10 separates and feeds the documents set in the document tray 11 one by one, conveys them in the sub-scanning direction along the paper passing path 13 in which the close contact type image sensor 14 is arranged, and discharges the paper. Paper is discharged to the tray 12. The document illumination unit 42 includes a lamp 42A and a mirror 42B. While the original is conveyed in the sub-scanning direction along the paper passing path 13, the line-based reading operation in the main scanning direction is repeatedly executed by the original illumination unit 42, the reflection mirror 43, the condenser lens 44, and the line image sensor 45. Will be done. A white reference plate 41 is attached so as to face the image reading unit 10B in close proximity to the image reading unit 10B. The white reference plate 41 is used at the time of shading correction of the image reading unit 10B. The lamp 42A is turned on in a state where no document exists between the image reading unit 10B and the white reference plate 41, and the light is applied to the white reference plate 41. The light including the reflected light of the white reference plate 41 is received by the line image sensor 45 via the mirror 42B, the reflecting mirror 43, and the condenser lens 44.

The fixing portion 35 forms a fixing nip for fixing the toner image on the print medium P, and includes an upper fixing portion and a lower fixing portion. The upper fixing portion supplies heat to the toner image via the fixing nip, and the fixing roller 352 forming the fixing nip between the pressing roller 351 provided in the lower fixing portion and the heating having the heating portion. A fixing belt formed in an endless shape is wound around the roller 353. The lower fixing portion is provided so as to face the upper fixing portion, and applies pressure to the toner image via the fixing nip.

The post-processing device 7 is arranged after the image forming device 1 and executes post-processing on the print medium P supplied from the image forming device 1. The post-processing is a process of processing the print medium P on which the image is formed by the image forming apparatus 1 according to various uses such as a hole punching process, a binding process, a cutting process, or a folding process. The post-processing device 7 includes a control unit 701, a storage unit 702, a detection unit 711, a humidifying unit 712, a post-processing unit 713, and a transport path 721, and transports the print medium P on the transport path 721 along the transport direction D. Then, the post-processing is output to the output tray 715 or the like. The post-processing unit 713 has a hole-drilling processing unit 713A having a hole-drilling processing function, a binding processing unit 713B having a binding processing function, a cutting processing unit 713C having a cutting processing function, and a folding processing function. The folding processing unit 713D is configured to be appropriately mountable. For example, the post-processing unit 713 can be equipped with the hole-drilling processing unit 713A as a detachable unit. The binding processing unit 713B, the cutting processing unit 713C, and the folding processing unit 713D are also configured as detachable units in the same manner as the drilling processing unit 713A. Further, in the above description, the function of the humidifying section 712 is excluded as the description of the post-treatment, but the post-treatment may include the function of the humidifying section 712 as well. In this case, the post-processing is some processing performed on the print medium P on which the image is formed by the image forming apparatus 1.

The humidifying section 712 is provided on the upstream side of the printing medium P in the transport direction D, and humidifies the printing medium P. The humidifying section 712 includes a first humidifying section 731A, a second humidifying section 731B, and a switching gate 732. Supply the recording medium to be transported. The first humidifying section 731A is mainly composed of a pair of humidifying rollers 741, a water supply roller 742, and a water supply tank 743. The pair of humidifying rollers 741 are formed by pressure contact with each other. The nip portion formed by the pair of humidifying rollers 741 is arranged corresponding to the transport path 721 of the print medium P. Each of the pair of humidifying rollers 741 is in contact with the water supply roller 742. A part of each water supply roller 742 is housed in each water supply tank 743. A humidifying liquid is stored in each of the water tanks 743. A required amount of water is appropriately supplied to the humidifying liquid from a water supply tank (not shown). Therefore, the humidifying unit 712 transmits the humidifying liquid stored in the water supply tank 743 from the water supply roller 742 to the humidifying roller 741 and imparts water to the print medium P via the nip portion formed by the humidifying roller 741. .. Therefore, the print medium P is conveyed to the post-processing unit 713 along the transfer path 721 while being humidified on both sides by passing through the humidifying unit 712.

The second humidifying section 731B has the same configuration as the first humidifying section 731A, and the description thereof will be omitted. Further, the amount of humidification can be adjusted by adjusting the nip width of the nip portion formed by the pair of humidifying rollers 741. For example, by increasing the nip width of the nip portion, the amount of humidification that humidifies the print medium P can be increased, and by reducing the nip of the nip portion, the amount of humidification that humidifies the print medium P can be reduced. Can be done. When controlling the humidification amount to zero, the pair of humidifying rollers 741 may be separated from each other, and the state at this time may be set as the minimum value of the nip width of the nip portion to correspond to the humidification amount of 0%. Further, the maximum value of the nip width of the nip portion that can be adjusted by the pair of humidifying rollers 741 may correspond to the humidification amount of 100%. The detection unit 711 is provided on the upstream side of the printing medium P in the transport direction D from the humidifying unit 712, and detects the water content of the printing medium P. For example, the detection unit 711 detects the water content of the print medium P by irradiating the print medium P with light containing near infrared rays, measuring the reflected light of the irradiated light, and obtaining the reflectance due to the reflected light. do. In addition to the reflectance due to the reflected light, the detection unit 711 converts the electric resistance value of the print medium P, the electric capacity of the print medium P, the intensity of the microwave passing through the print medium P, and the like into various physical quantities. By doing so, the water content of the print medium P may be detected.

The post-processing unit 713 is provided on the downstream side of the print medium P in the transport direction D, and post-processes the print medium P. The control unit 701 is mainly composed of a ROM, a RAM, a CPU, and an I / O interface, and executes various control programs. As shown in FIG. 2, the control unit 701 is stored in the storage unit 702 with various input values from the detection unit 711, the timekeeping unit 7131, the current measurement unit 7132, the home position sensor 7133, the post-processing control unit 7139, and the like. The humidifying unit 712, the driving unit 7137, and the like are controlled based on the various data. The timekeeping unit 7131 measures the processing time required for the processing specified by the processing type information such as the drilling process, the binding process, the cutting process, or the folding process. The time measuring unit 7131 may measure the time by, for example, a crystal oscillator, or may measure the time by counting the clock of the control unit 701. The home position sensor 7133 is composed of, for example, an optical sensor such as a photo sensor, and measures the position of the print medium P as a reference for measuring the processing time by the time measuring unit 7131. The home position sensor 7133, for example, measures the position of the print medium P when the binding process is started, and transmits the measurement result to the time measuring unit 7131. The current measuring unit 7132 measures the operating current according to the process specified by the process type information. The current measuring unit 7132 measures the operating current of the post-processing unit 713 by, for example, a shunt resistor provided in the circuit inside the post-processing unit 713. The storage unit 702 is composed of, for example, an HDD or a semiconductor memory, and includes a humidification control table 7021 and a threshold value table 7022 as shown in FIG. As shown in FIGS. 3 to 7, the humidification control table 7021 is associated with the water content of the print medium P, the processing information regarding the post-treatment, and the humidification amount by the humidifying unit 712. The threshold table 7022 includes various thresholds used in the humidification control table 7021 and is associated with the humidification control table 7021.

For example, as shown in FIG. 3, the presence or absence of humidification may be specified based on whether or not the water content of the print medium P is equal to or higher than the standard set value. The standard set value is a water content suitable for the print medium P, which is preset based on the specifications of the print medium P, the type of post-treatment, the ambient environment, and the like. Further, for example, as shown in FIG. 4, in addition to the determination processing of the water content of the print medium P and the standard set value, the determination processing of the processing time and the threshold time and the determination processing of the operating current and the threshold current are performed. The presence or absence of humidification may be specified based on this. Further, for example, as shown in FIGS. 5 and 8, when the print medium bundle P_b is made of a plurality of print media P, the presence or absence of humidification is determined based on the top paper, the bottom paper, the intermediate paper, and the water content. It may be specified. Further, for example, as shown in FIGS. 6 and 8, when the print medium bundle P_b is made of a plurality of print media P, the top paper, the bottom paper, the intermediate paper, the water content, and the processing time are added. The presence or absence of humidification may be specified based on the determination process of the threshold time and the determination process of the operating current and the threshold current.

Further, when the print medium bundle P_b is made by a plurality of print media P by using the binding process, the print medium bundle P_b is located at the highest level of the print medium P and at the lowest position of the print medium P. Includes the lowest paper and the intermediate paper sandwiched between the highest paper and the lowest paper. The intermediate paper is at least one printing medium P. Therefore, for example, as shown in FIG. 7, in addition to the top paper, the bottom paper, and the intermediate paper and the water content, the determination process of the processing time and the threshold time, and the determination of the operating current and the threshold current. The amount of humidification may be variably controlled based on the treatment. In the example of FIGS. 3 to 7, the humidification control based on whether or not the threshold values are equal to or higher than the various threshold values has been described, but the control may be executed with the various threshold values as boundaries. Therefore, the humidification control may be based on whether or not the threshold values are exceeded.

The post-processing control unit 7139 is for controlling post-processing by the post-processing unit 713, and is composed of, for example, a circuit such as an ASIC. The post-processing control unit 7139 transmits, for example, to the control unit 701 whether the processing type of the post-processing unit 713 is a drilling process, a binding process, a cutting process, or a folding process. The control unit 701 controls the humidification amount to be humidified by the humidifying unit 712 based on the water content of the print medium P detected by the detection unit 711 and the processing information regarding the post-treatment. The processing information includes information regarding at least one processing type among the drilling processing, the binding processing, the cutting processing, and the folding processing as the processing type information executed by the post-processing. The control unit 701 controls the humidification amount based on the processing type information. Specifically, the processing information includes a processing time required for the processing specified by the processing type information and a threshold time as an index for determining a load based on the processing time. As an index for determining the load based on the processing time, a boundary value as to whether or not the load exceeds a predetermined load may be set. When the load exceeds the presumed load, the humidification amount is controlled in order to reduce the load required for the post-treatment. Specifically, the control unit 701 increases the amount of humidification when the processing time exceeds the threshold time.

Further, in addition to the determination based on time, the determination based on current may be used as described with reference to FIGS. 4, 6, and 7. Specifically, the processing information may include an operating current corresponding to the processing specified by the processing type information and a threshold current as an index for determining a load based on the operating current. As an index for determining the load based on the operating current, a boundary value as to whether or not the load exceeds a presumed load may be set. When the load exceeds the presumed load, the humidification amount is controlled in order to reduce the load required for the post-treatment. Specifically, the control unit 701 increases the amount of humidification when the operating current exceeds the threshold current.

The humidification amount may be controlled based on the parameters specific to various treatments specified as the treatment type information. The processing information may include a threshold number of holes as an index for determining the load required for the hole drilling process. As an index for determining the load required for the drilling process, a boundary value as to whether or not the load exceeds a predetermined load may be set. When the load exceeds the presumed load, the humidification amount is controlled in order to reduce the load required for the post-treatment. Specifically, the control unit 701 increases the amount of humidification when the processing type information includes information related to the drilling process and the number of holes in the drilling process exceeds the threshold number of holes. The processing information may include a threshold number of sheets as an index for determining the load required for the cutting process. As an index for determining the load required for the cutting process, a boundary value as to whether or not the load exceeds a presumed load may be set. When the load exceeds the presumed load, the humidification amount is controlled in order to reduce the load required for the post-treatment. Specifically, the control unit 701 increases the humidification amount when the processing type information includes information related to the cutting process and the number of sheets cut by the cutting process exceeds the threshold number. The processing information may include a threshold density as an index for determining the load required for the folding process. As an index for determining the load required for the folding process, a boundary value as to whether or not the load exceeds a predetermined load may be set. When the load exceeds the presumed load, the humidification amount is controlled in order to reduce the load required for the post-treatment. Specifically, the control unit 701 increases the humidification amount when the processing type information includes information related to the folding process and the image density of the folded portion by the folding process exceeds the threshold density. The load assumed in advance described above is such that post-processing can be executed while maintaining the quality of the print medium P as long as it is within the range of such load, and the specifications of the print medium P, It is preferable to set in advance according to the type of post-treatment, the surrounding environment, and the like.

Further, as described with reference to FIGS. 5 to 7, the amount of humidification may be controlled according to the top paper, the bottom paper, and the intermediate paper. Specifically, when the processing information includes the binding process, the control unit 701 controls the humidification amount for each sheet on which the print media P are overlapped. The control unit 701 reduces the amount of humidification of the top paper and the bottom paper as compared with the intermediate paper. As shown in FIG. 8, the print medium P includes a post-processing area X and a non-post-processing area Y. The post-processing area X is a range in which post-processing is performed. The non-post-processing area Y is an exclusive range from the post-processing area X. The control unit 701 specifies a portion to be humidified by the humidifying unit 712 in the post-treatment region X. For example, since the top-level paper is controlled without humidification, the temporary post-treatment area X_p is specified, and the temporary post-treatment area X_p is not controlled by humidification. Since the intermediate paper is controlled with humidification, the post-treatment area X is specified, and the post-treatment area X is controlled with humidification. Since the lowest-ranked paper is controlled without humidification, it is processed in the same manner as the highest-ranked paper. Therefore, when the top-level paper, the intermediate paper, and the lowest-level paper are bound, the post-processing region X of the intermediate paper is humidified and then conveyed in the conveying direction D by the binding processing unit 713B of FIG. It is bound with staple Z, and as a result, a print medium bundle P_b is completed.

The drive unit 7137 is composed of various drive components such as a drive motor (not shown), and drives various drive components corresponding to each of a hole drilling process, a binding process, a cutting process, and a folding process. For example, when the post-processing unit 713 includes the hole-drilling unit 713A, the drive unit 7137 drives the drive motor related to the hole-drilling process, moves the punch to the position of the die, and performs the hole-drilling process of the print medium P ( Neither is shown). The drive unit 7137 similarly drives various drive components in the binding process, the cutting process, and the folding process in response to the respective processes. For example, in the case of the binding process, the drive unit 7137 performs a process in which various drive components move the staple Z to the binding location and bind the print medium bundle P_b with the staple Z.

FIG. 9 is a flowchart illustrating a control example of preprocessing according to an embodiment to which the present disclosure is applied. The processing of steps S11 to S34 corresponds to the pre-processing, and the processing of step S35 corresponds to the post-processing. In the following description, an example in which the print medium P is paper will be described. In addition, various flags may be input with values that are not used for branch determination, such as a default value of 9999.

In step S11, the control unit 701 detects the water content of the paper by the detection unit 711. In step S12, the control unit 701 determines the type of post-processing. When the control unit 701 determines that the type of post-processing is drilling processing (step S12; drilling processing), the control unit 701 shifts to the processing of step S13, sets the processing flag to 1, and shifts to the processing of step S17. do. When the control unit 701 determines that the type of post-processing is binding processing (step S12; binding processing), the control unit 701 shifts to the processing of step S14, sets the processing flag to 2, and shifts to the processing of step S17. When the control unit 701 determines that the type of post-processing is cutting processing (step S12; cutting processing), the control unit 701 shifts to the processing of step S15, sets the processing flag to 3, and shifts to the processing of step S17. When the control unit 701 determines that the type of post-processing is folding processing (step S12; folding processing), the control unit 701 shifts to the processing of step S16, sets the processing flag to 4, and shifts to the processing of step S17.

In step S17, the control unit 701 determines whether or not the processing time is timed. When the control unit 701 determines that the processing time is timed (step S17; Y), the control unit 701 shifts to the processing of step S19. When the control unit 701 determines that the processing time is not timed (step S17; N), the control unit 701 shifts to the processing of step S18. In step S18, the control unit 701 sets the timekeeping flag to 0 and shifts to the process of step S23. In step S19, the control unit 701 sets the timekeeping flag to 1, and proceeds to the process of step S20. In step S20, the control unit 701 determines whether or not the processing time exceeds the threshold time. When the control unit 701 determines that the processing time exceeds the threshold time (step S20; Y), the control unit 701 shifts to the processing of step S21, sets the time flag to 1 in step S21, and shifts to the processing of step S23. .. When the control unit 701 determines that the processing time does not exceed the threshold time (step S20; N), the process proceeds to the process of step S22, in step S22, the time flag is set to 0, and the process proceeds to step S23. do.

In step S23, the control unit 701 determines whether or not the operating current is being measured. When the control unit 701 determines that the operating current is being measured (step S23; Y), the control unit 701 shifts to the process of step S25. When the control unit 701 determines that the operating current has not been measured (step S23; N), the process proceeds to the process of step S24, in step S24, the measurement flag is set to 0, and the process proceeds to step S29. .. In step S25, the control unit 701 sets the measurement flag to 1, and proceeds to the process of step S26. In step S26, the control unit 701 determines whether or not the operating current exceeds the threshold current. When the control unit 701 determines that the operating current exceeds the threshold current (step S26; Y), the process proceeds to the process of step S27, and in step S27, the current flag is set to 1 and the process proceeds to step S29. .. When the control unit 701 determines that the operating current does not exceed the threshold current (step S26; N), the process proceeds to the process of step S28, the current flag is set to 0 in step S28, and the process proceeds to step S29. do.

In step S29, the control unit 701 determines whether or not the water content of the paper is less than the standard set value. When the control unit 701 determines that the water content of the paper is less than the standard set value (step S29; Y), the control unit 701 shifts to the process of step S30, sets the water content flag to 0 in step S30, and sets the water content flag to 0 in step S32. Move to processing. When the control unit 701 determines that the water content of the paper is equal to or higher than the standard set value (step S29; N), the control unit 701 shifts to the process of step S31, sets the water content flag to 1 in step S31, and sets the water content flag to 1 in step S32. Move to processing. In step S32, the control unit 701 determines whether or not the humidification amount can be variably controlled. When the control unit 701 determines that the humidification amount can be variably controlled (step S32; Y), the control unit 701 shifts to the process of step S34, sets the variable flag to 1, shifts to the process of step S35, and steps. In S35, post-processing is executed. When the control unit 701 determines that the variable control of the humidification amount is not possible (step S32; N), the process proceeds to the process of step S33, the variable flag is set to 0, the process proceeds to step S35, and the process proceeds to step S35. In, post-processing is executed.

FIG. 10 is a flowchart illustrating a control example of the drilling process among the post-processes according to the embodiment to which the present disclosure is applied. In step S51, the control unit 701 determines whether or not the processing flag is 1. When the control unit 701 determines that the processing flag is 1 (step S51; Y), the control unit 701 shifts to the processing of step S52. When the control unit 701 determines that the processing flag is not 1 (step S51; N), the control unit 701 shifts to the processing of step S81, which will be described later, with reference to FIG. In step S52, the control unit 701 determines whether or not the number of holes exceeds the threshold number of holes. When the control unit 701 determines that the number of holes exceeds the threshold number of holes (step S52; Y), the control unit 701 shifts to the process of step S53, sets the number of holes flag to 1 in step S53, and performs the process of step S55. Transition. When the control unit 701 determines that the number of holes does not exceed the threshold number of holes (step S52; N), the control unit 701 shifts to the process of step S54, sets the number of holes flag to 0 in step S54, and processes in step S55. Move to.

In step S55, the control unit 701 determines whether or not the timekeeping flag is 1. When the control unit 701 determines that the timekeeping flag is 1 (step S55; Y), the control unit 701 shifts to the process of step S56. When the control unit 701 determines that the timekeeping flag is not 1 (step S55; N), the control unit 701 shifts to the process of step S57. In step S56, the control unit 701 determines whether or not the time flag is 1. When the control unit 701 determines that the time flag is 1 (step S56; Y), the process proceeds to the process of step S59, and in step S59, the humidification flag is set to 1 and the process proceeds to step S62. When the control unit 701 determines that the time flag is not 1 (step S56; N), the control unit 701 shifts to the process of step S60. In step S57, the control unit 701 determines whether or not the measurement flag is 1. When the control unit 701 determines that the measurement flag is 1 (step S57; Y), the control unit 701 shifts to the process of step S58. When the control unit 701 determines that the measurement flag is not 1 (step S57; N), the control unit 701 shifts to the process of step S60. In step S58, the control unit 701 determines whether or not the current flag is 1. When the control unit 701 determines that the current flag is 1 (step S58; Y), the control unit 701 shifts to the process of step S59. When the control unit 701 determines that the current flag is not 1 (step S58; N), the control unit 701 shifts to the process of step S60. In step S60, the control unit 701 determines whether or not the water content flag is 1. When the control unit 701 determines that the water content flag is 1 (step S60; Y), the control unit 701 shifts to the process of step S61. When the control unit 701 determines that the water content flag is not 1 (step S60; N), the control unit 701 shifts to the process of step S59. In step S61, the control unit 701 sets the humidification flag to 0 and shifts to the process of step S62.

In step S62, the control unit 701 determines whether or not the humidification flag is 1. When the humidification flag is 1 (step S62; Y), the control unit 701 shifts to the process of step S64. When the humidification flag is not 1 (step S62; N), the control unit 701 shifts to the process of step S63. In step S63, the control unit 701 determines whether or not the number of holes flag is 0. When the number of holes flag is 0 (step S63; Y), the control unit 701 shifts to the process of step S65. When the number of holes flag is not 0 (step S63; N), the control unit 701 shifts to the process of step S64. In step S64, the control unit 701 determines whether or not the variable flag is 0. When the control unit 701 determines that the variable flag is 0 (step S64; Y), the control unit 701 shifts to the process of step S67, controls with humidification in step S67, and shifts to the process of step S70. When the control unit 701 determines that the variable flag is not 0 (step S64; N), the control unit 701 shifts to the process of step S66, increases the humidification amount in step S66, and shifts to the process of step S70. In step S65, the control unit 701 determines whether or not the variable flag is 0. When the control unit 701 determines that the variable flag is 0 (step S65; Y), the control unit 701 shifts to the process of step S68, performs control without humidification in step S68, and shifts to the process of step S70. When the control unit 701 determines that the variable flag is not 0 (step S65; N), the control unit 701 shifts to the process of step S69, reduces the humidification amount in step S69, and shifts to the process of step S70. In step S70, the control unit 701 executes the drilling process and ends the post-processing.

FIG. 11 is a flowchart illustrating a control example of the cutting process among the post-processes according to the embodiment to which the present disclosure is applied. Since the processes of steps S85 to S92 and steps S94 to S99 are the same as the processes of steps S55 to S62 and steps S64 to S69 shown in FIG. 10, the description thereof will be omitted. In step S81, the control unit 701 determines whether or not the processing flag is 3. When the control unit 701 determines that the processing flag is 3 (step S81; Y), the control unit 701 shifts to the processing of step S82. When the control unit 701 determines that the processing flag is not 3 (step S81; N), the control unit 701 shifts to the processing of step S111 described later with reference to FIG. In step S82, the control unit 701 determines whether or not the number of sheets to be cut exceeds the threshold number. When the control unit 701 determines that the number of sheets to be cut exceeds the threshold number (step S82; Y), the process proceeds to the process of step S83, and in step S83, the number flag is set to 1 and the process proceeds to step S85. .. When the control unit 701 determines that the number of sheets to be cut does not exceed the threshold number (step S82; N), the process proceeds to the process of step S84, and in step S84, the number flag is set to 0 and the process proceeds to step S85. do. Further, in step S93, the control unit 701 determines whether or not the number flag is 0. When the control unit 701 determines that the number flag is 0 (step S93; Y), the control unit 701 shifts to the process of step S95. When the control unit 701 determines that the number flag is not 0 (step S93; N), the control unit 701 shifts to the process of step S94. Further, in step S100, the control unit 701 executes the cutting process and ends the post-processing.

FIG. 12 is a flowchart illustrating a control example of the folding process among the post-processes according to the embodiment to which the present disclosure is applied. Since the processes of steps S115 to S122 and steps S124 to S129 are the same as the processes of steps S55 to S62 and steps S64 to S69 shown in FIG. 10, the description thereof will be omitted. In step S111, the control unit 701 determines whether or not the processing flag is 4. When the control unit 701 determines that the processing flag is 4 (step S111; Y), the control unit 701 shifts to the processing of step S112. When the control unit 701 determines that the processing flag is not 4 (step S111; N), the control unit 701 shifts to the processing of step S141 described later with reference to FIG. In step S112, the control unit 701 determines whether or not the image density of the folded portion exceeds the threshold density. When the control unit 701 determines that the image density of the folded portion exceeds the threshold density (step S112; Y), the control unit 701 shifts to the process of step S113, sets the density flag to 1 in step S113, and processes in step S115. Move to. When the control unit 701 determines that the image density of the folded portion does not exceed the threshold density (step S112; N), the control unit 701 shifts to the process of step S114, sets the density flag to 0 in step S114, and sets the density flag to 0 in step S115. Move to processing. Further, in step S123, the control unit 701 determines whether or not the concentration flag is 0. When the control unit 701 determines that the density flag is 0 (step S123; Y), the control unit 701 shifts to the process of step S125. When the control unit 701 determines that the density flag is not 0 (step S123; N), the control unit 701 shifts to the process of step S124. Further, in step S130, the control unit 701 executes the folding process and ends the post-processing.

FIG. 13 is a flowchart illustrating a control example of the binding process among the post-processes according to the embodiment to which the present disclosure is applied. In step S141, the control unit 701 determines whether or not the processing flag is 2. When the control unit 701 determines that the processing flag is 2 (step S141; Y), the control unit 701 shifts to the processing of step S142. When the control unit 701 determines that the processing flag is not 2 (step S141; N), the control unit 701 ends the post-processing. In step S142, the control unit 701 determines whether or not the timekeeping flag is 1. When the control unit 701 determines that the timekeeping flag is 1 (step S142; Y), the control unit 701 shifts to the process of step S143. When the control unit 701 determines that the timekeeping flag is not 1 (step S142; N), the control unit 701 shifts to the process of step S144. In step S143, the control unit 701 determines whether or not the time flag is 1. When the control unit 701 determines that the time flag is 1 (step S143; Y), the control unit 701 shifts to the process of step S148. When the control unit 701 determines that the time flag is not 1 (step S143; N), the control unit 701 shifts to the process of step S146. In step S144, the control unit 701 determines whether or not the measurement flag is 1. When the control unit 701 determines that the measurement flag is 1 (step S144; Y), the control unit 701 shifts to the process of step S145. When the control unit 701 determines that the measurement flag is not 1 (step S144; N), the control unit 701 shifts to the process of step S146. In step S145, the control unit 701 determines whether or not the current flag is 1. When the control unit 701 determines that the current flag is 1 (step S145; Y), the control unit 701 shifts to the process of step S148. When the control unit 701 determines that the current flag is not 1 (step S145; N), the control unit 701 shifts to the process of step S146.

In step S146, the control unit 701 determines whether or not the water content flag is 1. When the control unit 701 determines that the water content flag is 1 (step S146; Y), the process proceeds to the process of step S147, and in step S147, the humidification flag is set to 0 and the process proceeds to the process of step S150. When the control unit 701 determines that the water content flag is not 1 (step S146; N), the control unit 701 shifts to the process of step S148. In step S148, the control unit 701 determines whether or not the print medium P is intermediate paper. When the control unit 701 determines that the print medium P is intermediate paper (step S148; Y), the control unit 701 shifts to the process of step S149, sets the humidification flag to 1 in step S149, and shifts to the process of step S150. do. When the control unit 701 determines that the print medium P is not intermediate paper (step S148; N), the control unit 701 shifts to the process of step S147.

In step S150, the control unit 701 determines whether or not the humidification flag is 1. When the control unit 701 determines that the humidification flag is 1 (step S150; Y), the control unit 701 shifts to the process of step S151. When the control unit 701 determines that the humidification flag is not 1 (step S150; N), the control unit 701 shifts to the process of step S156. In step S151, the control unit 701 determines whether or not the variable flag is 0. When the control unit 701 determines that the variable flag is 0 (step S151; Y), the control unit 701 shifts to the process of step S153, controls with humidification in step S153, and shifts to the process of step S161. When the control unit 701 determines that the variable flag is not 0 (step S151; N), the control unit 701 shifts to the process of step S152. In step S152, the control unit 701 determines whether or not the water content flag is 0. When the control unit 701 determines that the water content flag is 0 (step S152; Y), the process proceeds to the process of step S154, and in step S154, the humidification amount is controlled to 100%, and the process proceeds to the process of step S161. .. When the control unit 701 determines that the water content flag is not 0 (step S152; N), the process proceeds to the process of step S155, and in step S155, the humidification amount is controlled to 50%, and the process proceeds to the process of step S161.

In step S156, the control unit 701 determines whether or not the variable flag is 0. When the control unit 701 determines that the variable flag is 0 (step S156; Y), the control unit 701 shifts to the process of step S160, performs control without humidification in step S160, and shifts to the process of step S161. When the control unit 701 determines that the variable flag is not 0 (step S156; N), the control unit 701 shifts to the process of step S157. In step S157, the control unit 701 determines whether or not the water content flag is 1. When the control unit 701 determines that the water content flag is 1 (step S157; Y), the process proceeds to the process of step S159, and in step S159, the humidification amount is controlled to 0%, and the process proceeds to the process of step S161. .. When the control unit 701 determines that the water content flag is not 1 (step S157; N), the process proceeds to the process of step S158, and in step S158, the humidification amount is controlled to 20%, and the process proceeds to the process of step S161. In step S161, the control unit 701 executes the binding process and ends the post-processing.

From the above description, in the post-processing device 7 according to the present embodiment to which the present disclosure is applied, the humidifying unit 712 is based on the water content of the print medium P detected by the detection unit 711 and the processing information regarding the post-treatment. The amount of humidification to be humidified is controlled. Therefore, since the actual water content of the print medium P is detected and the humidification control is performed in consideration of the detected water content, the humidification amount is not controlled depending on the input set value by the user. That is, even if the input set value and the print medium P in the paper cassette 21 are different, the humidification control takes into consideration the actual water content of the print medium P, so that the humidification control should be performed appropriately. Can be done. Therefore, it is possible to prevent a decrease in the transportability of the print medium P while eliminating static electricity from the print medium P. That is, post-processing without side effects can be performed.

Further, in the aftertreatment device 7 according to the present embodiment to which the present disclosure is applied, the amount of humidification is controlled based on information regarding at least one of the types of processing: drilling processing, binding processing, cutting processing, and folding processing. .. Therefore, since it is possible to control the association between each treatment and the humidification amount, the humidification amount for humidifying the print medium P can be controlled to a humidification amount suitable for each treatment.

Further, in the post-processing apparatus 7 according to the present embodiment to which the present disclosure is applied, a portion where the humidifying unit 712 humidifies the print medium P is specified in the post-processing region X. Therefore, since the portion to be humidified is limited to the post-treatment area X, it is possible to avoid the process of excessively humidifying the print medium P. Therefore, since humidification can be performed while avoiding deterioration of the flat surface strength of the print medium P, it is possible to eliminate static electricity from the print medium P while suppressing transfer defects such as jams.

Further, in the post-treatment apparatus 7 according to the present embodiment to which the present disclosure is applied, when the post-treatment treatment time exceeds the threshold time, the amount of humidification is increased. That is, the long processing time of the post-processing corresponds to the load on the post-processing due to the durability. Therefore, by increasing the amount of humidification, the load of post-treatment can be reduced.

Further, in the post-treatment apparatus 7 according to the present embodiment to which the present disclosure is applied, when the operating current of the post-treatment exceeds the threshold current, the amount of humidification is increased. That is, the fact that the operating current of the post-processing is large corresponds to the load being applied to the post-processing due to the durability. Therefore, by increasing the amount of humidification, the load of post-treatment can be reduced.

Further, in the post-processing apparatus 7 according to the present embodiment to which the present disclosure is applied, when the processing information includes the binding process, the humidification amount is controlled for each sheet on which the print media P are overlapped. Since a different amount of humidification can be supplied to each of the print medium bundles P_b bound by the binding process, the print medium P can be bound firmly while maintaining the quality.

Further, in the aftertreatment apparatus 7 according to the present embodiment to which the present disclosure is applied, the amount of humidification of the top paper and the bottom paper is reduced as compared with the intermediate paper. That is, it is possible to avoid deterioration of the quality of the top paper and the bottom paper while making the intermediate paper softer than the top paper and the bottom paper. Therefore, the load of post-processing can be reduced while maintaining the quality of the print medium P.

Further, in the post-processing apparatus 7 according to the present embodiment to which the present disclosure is applied, when the processing type information includes information related to the drilling process and the number of holes in the hole-drilling process exceeds the threshold number of holes, the amount of humidification is increased. .. That is, a large number of holes corresponds to a load on the post-processing due to durability. Therefore, by increasing the amount of humidification, the load of post-treatment can be reduced.

Further, in the post-processing apparatus 7 according to the present embodiment to which the present disclosure is applied, when the processing type information includes information related to the cutting process and the number of sheets cut by the cutting process exceeds the threshold number, the amount of humidification is increased. That is, a large number of sheets to be cut corresponds to a load on post-processing due to durability. Therefore, by increasing the amount of humidification, the load of post-treatment can be reduced.

Further, in the post-processing apparatus 7 according to the present embodiment to which the present disclosure is applied, when the processing type information includes information related to the folding process and the image density of the folded portion by the folding process exceeds the threshold density, the humidification amount is increased. .. That is, the high image density of the folded portion corresponds to the fact that the image of the folded portion is easily peeled off. Therefore, if the amount of humidification is increased, it is possible to prevent the image of the folded portion from being peeled off from the print medium P.

Although the aftertreatment device 7 which is one aspect of the present disclosure has been described above based on the embodiment, the present disclosure is not limited to this, and changes may be made without departing from the spirit of the present disclosure. good.

For example, an example in which the operating current of the post-processing unit 713 is measured by the current measuring unit 7132 and the humidification amount is controlled based on the operating current has been described, but the present invention is not particularly limited to this. For example, the power consumption of the post-processing unit 713 may be obtained, and if the obtained power consumption exceeds a preset threshold power consumption, control may be performed to increase the humidification amount.

Further, an example in which the humidifying section 712 includes a pair of humidifying rollers 741, a water supply roller 742, and a water supply tank 743 has been described, but the present invention is not particularly limited thereto. For example, the humidifying section 712 may be composed of a nozzle for spraying water.

Further, an example in which the humidification amount to be humidified by the humidifying unit 712 is controlled based on the water content of the print medium P and the processing information regarding the post-treatment has been described, but the present invention is not particularly limited thereto. For example, the thickness of the print medium bundle P_b is detected by an optical sensor (not shown), the thickness of one print medium P is calculated from the detected thickness and the number of print media P, and the thickness of the print medium P is calculated. The amount of humidification may be controlled according to the above. Further, the humidification amount may be controlled according to the type of the print medium P.

Further, as an example of the post-processing, a hole-drilling process, a binding process, a cutting process, or a folding process has been described, but the present invention is not particularly limited thereto. Similarly, in the case of other post-treatments, the control may be such that the amount of humidification can be controlled and the quality of the print medium P can be maintained in order to reduce the load of the post-treatment.

Further, although an example in which various flags are used as the branch processing has been described, the present invention is not particularly limited to this. Any form may be used as long as it can execute appropriate branch processing according to the conditions. Further, the setting values of various flags are examples, and are not particularly limited to these.

The series of processes described above can be executed by hardware or software. When a series of processes are executed by software, the programs constituting the software are installed on a computer capable of executing various functions by installing various programs from the print medium P for recording the programs. Alternatively, it is installed via the Internet or the like.

1 Image forming device, 10 Reader, 10A ADF, 10B Image reader 11 Original tray, 12 Paper output tray, 13 Paper path 14 Adhesive image sensor, 15 Concentration reference member 20 Paper feed unit, 21 Paper feed cassette, 22 Paper feed transfer section, 24 Secondary transfer section 241 Secondary transfer roller 30 Image forming section, 31 Exposure device, 32 Photosensitive drum, 33 Developer 34 Primary transfer belt, 341 Secondary transfer facing roller 35 Fixing section, 351 Pressurizing roller , 352 Fixing roller, 353 Heating roller 41 White reference plate, 42 Original lighting unit, 42A lamp, 42B mirror 43 Reflective mirror, 44 Condensing lens, 45 Line image sensor 46 Platen glass 7 Post-processing device, 701 Control unit 702 Storage unit , 7021 Humidity control table, 7022 Threshold table 711 Detection unit, 712 Humidity unit 713 Post-processing unit, 713A Drilling processing unit, 713B Binding processing unit 713C Cutting processing unit, 713D Folding processing unit, 7131 Time counting unit 7132 Current measuring unit, 7133 Home position sensor, 7137 Drive unit 7139 Post-processing control unit, 715 Paper discharge tray, 721 Transport path 731A 1st humidification section, 731B 2nd humidification section, 732 Switching gate 741 Humidification roller, 742 Water supply roller, 743 Water supply tank D Transport direction , P print medium, P_b print medium bundle, Z staple X post-processing area, X_p temporary post-processing area, Y non-post-processing area

Claims (8)

A post-processing device that post-processes a print medium by a post-processing unit.
A humidifying section provided on the upstream side of the post-processing section to humidify the print medium, and a humidifying section.
A detection unit provided on the upstream side of the humidification unit and detecting the water content of the print medium, and a detection unit.
The humidifying unit is based on the water content of the print medium detected by the detection unit, the processing time required for the post-treatment, and the threshold time as an index for determining the load required for the post-treatment based on the processing time. A control unit that controls the amount of humidification
Equipped with a,
The control unit
When the water content is less than the standard set value, the humidifying portion is used to increase the humidifying amount.
When the water content is equal to or higher than the standard set value and the treatment time does not exceed the threshold time, the humidifying portion is not used for humidification.
When the water content is equal to or higher than the standard set value and the treatment time exceeds the threshold time, the humidifying portion increases the humidifying amount.
Post-processing device. A post-processing device that post-processes a print medium by a post-processing unit.
A humidifying section provided on the upstream side of the post-processing section to humidify the print medium, and a humidifying section.
A detection unit provided on the upstream side of the humidification unit and detecting the water content of the print medium, and a detection unit.
The water content of the printing medium detected by the detection unit, the operating current in accordance with the following process, and based on the threshold current which is an index for determining the load required for the post-processing based on the operating current, the humidified A control unit that controls the amount of humidification that the unit humidifies,
With
The control unit
When the water content is less than the standard set value, the humidifying portion is used to increase the humidifying amount.
When the water content is equal to or higher than the standard set value and the operating current does not exceed the threshold current, the humidifying portion is not used for humidification.
When said moisture content is the operating current not less than the standard setting value exceeds the threshold current increases the amount of humidification by the humidifying unit,
Post-processing equipment. A post-processing device that post-processes a print medium by a post-processing unit.
A humidifying section provided on the upstream side of the post-processing section to humidify the print medium, and a humidifying section.
A detection unit provided on the upstream side of the humidification unit and detecting the water content of the print medium, and a detection unit.
The water content of the print medium detected by the detection unit, the number of holes in the hole drilling process when the post-processing is a hole drilling process, and a threshold value as an index for determining the load required for the hole drilling process. A control unit that controls the amount of humidification that the humidifying unit humidifies based on the number of holes,
With
The control unit
When the water content is less than the standard set value, the humidifying portion is used to increase the humidifying amount.
If the water content is equal to or higher than the standard set value and the number of holes by the drilling process does not exceed the threshold number of holes, the humidifying portion is not used for humidification.
The water content is not more than the standard set value, when the number of holes by the punching process exceeds the number of the threshold hole increases the amount of humidification by the humidifying unit,
Post-processing equipment. A post-processing device that post-processes a print medium by a post-processing unit.
A humidifying section provided on the upstream side of the post-processing section to humidify the print medium, and a humidifying section.
A detection unit provided on the upstream side of the humidification unit and detecting the water content of the print medium, and a detection unit.
Based on the water content of the print medium detected by the detection unit, the number of sheets cut by the cutting process when the post-processing is a cutting process, and the threshold number of sheets as an index for determining the load required for the cutting process. , A control unit that controls the amount of humidification that the humidifying unit humidifies,
With
The control unit
When the water content is less than the standard set value, the humidifying portion is used to increase the humidifying amount.
When the water content is equal to or higher than the standard set value and the number of sheets cut by the cutting process does not exceed the threshold number, the humidifying portion is not used for humidification.
The water content is not more than the standard set value, when cutting sheets by the cutting process exceeds the threshold number increases the amount of humidification by the humidifying unit,
Post-processing equipment. A post-processing device that post-processes a print medium by a post-processing unit.
A humidifying section provided on the upstream side of the post-processing section to humidify the print medium, and a humidifying section.
A detection unit provided on the upstream side of the humidification unit and detecting the water content of the print medium, and a detection unit.
The water content of the print medium detected by the detection unit, the image density of the folded portion by the folding process when the post-processing is the folding process, and the threshold value as an index for determining the load required for the folding process. A control unit that controls the amount of humidification that the humidifying unit humidifies based on the concentration,
With
The control unit
When the water content is less than the standard set value, the humidifying portion is used to increase the humidifying amount.
If the water content is equal to or higher than the standard set value and the image density of the folded portion by the folding process does not exceed the threshold density, the humidifying portion is not used for humidification.
The water content is not more than the standard set value, when the image density of the portion folded by the folding process exceeds the threshold concentration increases the amount of humidification by the humidifying unit,
Post-processing equipment. The print medium is
A post-treatment area that is within the range of the post-treatment,
A non-post-processing area that is an exclusive range from the post-processing area,
Including
The control unit
The location where the humidifying portion is humidified is specified in the post-treatment region.
The post-processing apparatus according to any one of claims 1 to 5. The control unit
If the after treatment is binding Ji process, the controlled humidification amount per one superposing each of the print medium,
The post-processing apparatus according to claim 1 or 2. The print medium bundle formed from the print medium by the binding process is
The top-level paper at the top of the print media and
The lowest paper at the bottom of the print media and
An intermediate paper sandwiched between the top-level paper and the bottom-level paper,
Including
The intermediate paper is
At least one of the print media
The control unit
Compared with the intermediate paper, the amount of humidification of the top paper and the bottom paper is reduced.
The post-processing apparatus according to claim 7.

Images