Patent ID: 12248265

DETAILED DESCRIPTION

Hereinafter, one or more embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the disclosed embodiments.

As illustrated inFIG.1, an image forming system100according to this embodiment includes a paper feeder1, an image forming apparatus2, an image inspection apparatus3, and a winder4.

The paper feeder1, for example, contains continuous form paper PM such as roll paper or continuous stationery, and feeds the continuous form paper PM to the image forming apparatus2. In the housing of the paper feeder1, the roll-shaped continuous form paper PM is wound around a support shaft and is retained to be rotatable.

The image forming apparatus2forms an image on the continuous form paper PM fed from the paper feeder1.

The image inspection apparatus3reads the image formed on the continuous form paper PM by the image forming apparatus2, analyzes the read image, and detects a waste.

The winder4winds up the continuous form paper PM conveyed from the image inspection apparatus3. In the housing of the winder4, the continuous form paper PM is wound around a support shaft and is retained in the shape of a roll.

As illustrated inFIG.1andFIG.2, the image forming apparatus2includes a controller (hardware processor)21, an operation display22, an image former23, a communicator24, a conveyer25, a storage26, a paper conveyance distance counter C1, a second paper conveyance distance counter C2, a consumable item residue sensor SE1, and a JAM detection sensor SE2.

The controller21includes a CPU, a RAM, and the like. The CPU of the controller21reads out various programs stored in the storage26, such as a system program and a processing program, decompresses the programs in the RAM, and executes various processing pieces in accordance with the decompressed programs.

The operation display22includes a display22aand an operation interface22b.

The display22aincludes a liquid crystal display (LCD) and the like, and displays various screens in accordance with an instruction of a display signal input from the controller21.

The operation interface22bincludes various function keys, and a touch panel formed to cover the display screen of the display22a, and receives various operations from a user.

The image former23forms an image on the continuous form paper PM conveyed by the conveyer25, in accordance with electrophotography.

The image former23includes five sets of photoreceptors231, exposurers232, developers233, intermediate transfer belts234, transfer rollers235, and fixers236corresponding to each color component of yellow (Y), magenta (M), cyan (C), black (K), and a special color (S).

The surface of the photoreceptor231is electrified to a predetermined potential with predetermined polarity by applying an electrification bias voltage.

The exposurer232applies laser light with a predetermined exposure amount onto the electrified photoreceptor231to be exposed, and forms an electrostatic latent image on the photoreceptor231.

The developer233supplies a toner of predetermined color (Y, M, C, K, and S) onto the exposed photoreceptor231by a development roller, and the electrostatic latent image formed on the photoreceptor231is developed by applying a development bias voltage.

A toner image (a monochromatic image) of each color formed on the photoreceptor231corresponding to each color of Y, M, C, K, and S is sequentially transferred onto the intermediate transfer belt234, and a toner image (a color image) is formed in which a layer of each color is superimposed. The intermediate transfer belt234is an endless belt wound around a plurality of rollers. Then, the toner image formed on the intermediate transfer belt234is transferred onto the continuous form paper PM by applying a transfer bias voltage with a polarity opposite to that of the toner onto the transfer roller235.

The fixer236fixes the toner image transferred onto the continuous form paper PM onto the continuous form paper PM by heating and pressurization.

The communicator24transmits and receives data with respect to an external device such as a PC that is connected through a communication network such as a local area network (LAN). The communicator24, for example, receives a job including image data for printing from the external device.

The conveyer25is a conveyance member of the continuous form paper PM. The conveyer25conveys the continuous form paper PM fed from the paper feeder1to the image former23by the plurality of rollers, and conveys the continuous form paper PM that has passed through the image former23to the image inspection apparatus3.

The storage26, for example, includes a hard disk drive (HDD), a semiconductor non-volatile memory, and the like. In the storage26, various programs such as the system program or the processing program executed by the controller21, and data required to execute such programs are stored. In addition, the storage26stores a paper cost for a print job of the continuous form paper PM for each factor. Accordingly, the controller21is capable of managing the paper cost for the print job of the continuous form paper PM for each factor. The factor, for example, includes an adjustment operation, valid output, main printing, a paper conveyance speed stabilization operation, and the like.

The paper conveyance distance counter C1is a counter that measures a conveyance distance of the continuous form paper PM.

The second paper conveyance distance counter C2is a counter that measures the conveyance distance of the continuous form paper PM, separately from the paper conveyance distance counter C1, in a predetermined case (for example, at the time of consumable item resupply, JAM recovery, and the like).

The consumable item residue sensor SE1is a sensor for detecting the residue of a consumable item (for example, a toner or the like). When the shortage of the consumable item is detected, the consumable item residue sensor SE1outputs information indicating that the shortage of the consumable item is detected to the controller21.

The JAM detection sensor SE2is a sensor for detecting the occurrence of JAM. When the occurrence of JAM is detected, the JAM detection sensor SE2outputs information indicating that the occurrence of JAM is detected to the controller21.

Next, the operation of the image forming system100according to this embodiment will be described with reference to flowcharts inFIG.3andFIG.4.

First, an operation at the time of the valid output that is performed by the image forming system100will be described with reference toFIG.3. The valid output is processing of outputting an image for valid output to the paper in order to validate whether image formation is normally performed, before performing the main printing of the print job.

First, the controller21resets the value of the paper conveyance distance counter C1(set to 0) (step S101).

Next, the controller21starts the valid output of the print job (step S102).

Next, the controller21allows the conveyer25to start the conveyance of the paper (the continuous form paper PM) (step S103).

Next, the controller21conveys the paper until the conveyance speed of the paper is stabilized (step S104).

Next, the controller21reads the value of the paper conveyance distance counter C1at a timing when the conveyance speed of the paper is stabilized, and stores the value in the storage26as the paper cost of the paper conveyance speed stabilization operation (step S105).

Next, the controller21allows the image former23to perform the adjustment operation (for example, patch output, output patch read-in, and the like) (step S106).

Next, the controller21reads the value of the paper conveyance distance counter C1at a timing when the adjustment operation is ended (step S107).

Next, the controller21calculates a difference between the values of the paper conveyance distance counter C1before and after the adjustment operation (that is, a difference between the value read at a timing when the adjustment operation is ended in step S107and the value read when the conveyance speed of the paper is stabilized in step S105), and stores the difference in the storage26as the paper cost of the adjustment operation (step S108).

Next, the controller21allows the image former23to perform a forming operation of the image for valid output (step S109).

Next, the controller21allows the conveyer25to stop the paper conveyance (step S110).

Next, the controller21determines whether a validation result of the output object (the image for valid output) is normal (step S111). For example, in a case where the image inspection apparatus3sends an analysis result indicating that it is normal or in a case where a recognition result of the user is normal and the user performs an input operation to that effect, the controller21determines that the validation result is normal. On the other hand, in a case where the image inspection apparatus3sends an analysis result indicating that it is abnormal or in a case where the recognition result of the user is abnormal and the user performs an input operation to that effect, the controller21determines that the validation result is not normal.

When it is determined that the validation result of the output object is normal (step S111: YES), the controller21proceeds to the next step S112.

On the other hand, when it is determined that the validation result of the output object is not normal (that is, abnormal) (step S111: NO), the controller21performs the re-adjustment of a printing parameter (step S113), and then, proceeds to step S102, and repeats again the processing subsequent to step S102.

In step S112, the controller21reads the value of the paper conveyance distance counter C1, and stores the value in the storage26as the paper cost of the valid output.

Next, an operation at the time of the main printing performed by the image forming system100will be described with reference toFIG.4. The main printing is performed following the valid output (refer toFIG.3), that is, following the processing of step S112inFIG.3.

First, the controller21resets the value of the paper conveyance distance counter C1(set to 0) (step S201).

Next, the controller21starts the main printing of the print job (step S202).

Next, the controller21allows the conveyer25to start the conveyance of the paper (the continuous form paper PM) (step S203).

Next, the controller21conveys the paper until the conveyance speed of the paper is stabilized (step S204).

Next, the controller21reads the value of the paper conveyance distance counter C1at a timing when the conveyance speed of the paper is stabilized, and stores the value in the storage26as the paper cost of the paper conveyance speed stabilization operation (step S205). The processing of step S205is the same as the processing of step S105inFIG.3, and thus, may be omitted.

Next, the controller21allows the image former23to perform the adjustment operation (for example, the patch output, the output patch read-in, and the like) (step S206).

Next, the controller21reads the value of the paper conveyance distance counter C1at a timing when the adjustment operation is ended (step S207).

Next, the controller21calculates a difference between the values of the paper conveyance distance counter C1before and after the adjustment operation (that is, a difference between the value read at a timing when the adjustment operation is ended in step S207and the value read at a timing when the conveyance speed of the paper is stabilized in step S205), and stores the difference in the storage26as the paper cost of the adjustment operation (step S208). The processing of step S207and step S208is the same as the processing of step S107and step S108inFIG.3, and thus, may be omitted.

Next, the controller21allows the image former23to perform a forming operation of an image for main printing (step S209).

Next, the controller21allows the conveyer25to stop the paper conveyance (step S210).

Next, the controller21reads the value of the paper conveyance distance counter C1, and stores the value in the storage26as the paper cost of the main printing (step S211).

Next, the controller21notifies the paper cost stored in the storage26to the user (step S212). That is, the controller21notifies the paper cost that is managed for each factor to the user. For example, the controller21notifies the paper cost of the valid output, the paper cost of the main printing, the paper cost of the paper conveyance speed stabilization operation, the paper cost of the adjustment operation, and the like, which are stored in the storage26, to the user. Examples of a method for notifying the user include a method for displaying on the display22a, a method for outputting a sound from a sound output, and the like.

In the related art, in the case of predicting/estimating the cost of a job or in the case of considering a cost reduction due to a change in a workflow, it is not possible to grasp elements such as how many print stops/restarts according to adjustment printing is required for the job (the printing companies manage how much image quality is required for each job, and the number of adjustment prints tends to increase for a job requiring strict image quality or a job using paper that is difficult to adjust. Since the check of the image quality and the parameter adjustment are performed between the adjustment prints, it is necessary to temporarily stop the printing), and how many troubles (JAM/waste/consumable item resupply) occur during the printing, and thus, there is a problem that it is not possible to perform consideration with a high accuracy in light of the actual situation.

Regarding the problem described above, in this embodiment, as described above, the controller21calculates the paper cost for the print job of the continuous form paper PM, on the basis of the distance of the continuous form paper PM conveyed from the start (the start of the valid output: refer to step S102inFIG.3) to the end (the stop of the paper conveyance after forming the image for main printing: refer to step S210inFIG.4) of the print job. That is, the controller21includes the paper conveyance other than when an image is formed by the image former23(for example, the paper conveyance speed stabilization operation, the adjustment operation, and the like) in the paper cost for the print job of the continuous form paper PM and manages the paper conveyance. Then, the controller21manages the paper cost for the print job of the continuous form paper PM for each factor (for example, the adjustment operation, the valid output, the main printing, the paper conveyance speed stabilization operation, and the like).

Accordingly, it is possible to perform consideration with a high accuracy in light of the actual situation.

As described above, the image forming apparatus2according to this embodiment includes the image former23that forms an image on the continuous form paper PM, and the controller21that calculates the paper cost for the print job of the continuous form paper PM, on the basis of the distance of the continuous form paper PM conveyed from the start to the end of the print job.

Therefore, according to the image forming apparatus2of this embodiment, it is possible to consider the cost of the paper that is consumed until the feeding speed is stabilized or the paper that is consumed not in the job printing, such as the adjustment, in the roll paper printing, and thus, it is possible to grasp an accurate job printing cost including the entire workflow.

In addition, according to the image forming apparatus2of this embodiment, the controller21includes the paper conveyance other than when an image is formed by the image former23in the paper cost for the print job of the continuous form paper PM and manages the paper conveyance.

Therefore, according to the image forming apparatus2of this embodiment, it is possible to consider the cost of the paper that is consumed until the feeding speed is stabilized or the paper that is consumed not in the job printing, such as the adjustment, in the roll paper printing, and thus, it is possible to grasp an accurate job printing cost including the entire workflow.

In addition, according to the image forming apparatus2of this embodiment, the controller21manages the paper cost for the print job of the continuous form paper PM for each factor. The factor, for example, includes the adjustment operation, the valid output, the main printing, the paper conveyance speed stabilization operation, and the like.

Therefore, according to the image forming apparatus2of this embodiment, it is possible for the user to grasp the actual situation of the paper cost in detail, and thus, it is possible to facilitate the cost management, the cost estimation for a new job, or the like.

In addition, according to the image forming apparatus2of this embodiment, the controller21notifies the paper cost for the print job of the continuous form paper PM, which is managed for each factor, to the user.

Therefore, according to the image forming apparatus2of this embodiment, it is possible to provide a means that enables the user to grasp the actual situation of the paper cost in detail, and thus, it is possible for the user to grasp the actual situation of the paper cost in detail, and it is possible to facilitate the cost management, the cost estimation for a new job, or the like.

As described above, the present invention has been described in detail on the basis of the embodiment according to the present invention, but the present invention is not limited to the embodiment described above, and can be modified within a range not departing from the gist thereof.

For example, in the embodiment described above, the adjustment operation, the valid output, the main printing, and the paper conveyance speed stabilization operation have been described as an example of the factor when managing the paper cost for each factor, but the present invention is not limited thereto. For example, other examples of the factor may include the consumable item resupply, the JAM recovery, and the like.

First, an operation at the time of the consumable item resupply that is performed by the image forming system100will be described with reference toFIG.5. This operation is started in a case where the shortage of the consumable item is detected by the consumable item residue sensor SE1at the time of the forming operation of the image for main printing (or the image for valid output), at the time of the adjustment operation (a forming operation of the patch image), or the like.

First, the controller21pauses the image forming operation (step S301).

Next, the controller21starts the second paper conveyance distance counter C2(step S302).

Next, the controller21allows the conveyer25to stop the conveyance of the paper (the continuous form paper PM) (step S303).

Next, the controller21notifies information of the shortage of the consumable item and a resupply instruction for the consumable item to the user (step S304).

Next, the controller21determines whether the user resupplies the consumable item and the consumable item residue sensor SE1detects the resolution of the shortage of the consumable item (step S305).

In a case where the consumable item residue sensor SE1detects the resolution of the shortage of the consumable item (step S305: YES), the controller21proceeds to step S306.

On the other hand, in a case where the consumable item residue sensor SE1does not detect the resolution of the shortage of the consumable item (step S305: NO), the controller21repeats the processing of step S305until the resolution of the shortage of the consumable item is detected.

Next, the controller21allows the conveyer25to restart the paper conveyance (step S306).

Next, the controller21conveys the paper until the conveyance speed of the paper is stabilized (step S307).

Next, the controller21restarts the image forming operation (step S308).

Next, the controller21stops the second paper conveyance distance counter C2, reads the value, and stores the value in the storage26as the paper cost of the consumable item resupply (step S309).

As described above, the consumable item resupply can be included as the factor when managing the paper cost for each factor.

In Modification Example described above, the second paper conveyance distance counter C2is started in step S302, and the value of the second paper conveyance distance counter C2is read in step S309, but the present invention is not limited thereto. For example, the value of the paper conveyance distance counter C1may be read in step S302, the value of the paper conveyance distance counter C1may be read again in step S309, and a difference from the value read in step S302may be calculated. In this case, a configuration can be obtained in which the second paper conveyance distance counter C2is not provided.

Next, an operation at the time of the JAM recovery that is performed by the image forming system100will be described with reference toFIG.6. This operation is started in a case where the JAM detection sensor SE2detects the occurrence of JAM at the time of the forming operation of the image for main printing (or the image for valid output), at the time of the adjustment operation (the forming operation of the patch image), or the like.

First, the controller21pauses the image forming operation (step S401).

Next, the controller21starts the second paper conveyance distance counter C2(step S402).

Next, the controller21allows the conveyer25to stop the conveyance of the paper (the continuous form paper PM) (step S403).

Next, the controller21notifies information of the JAM occurrence and a recovery instruction for JAM to the user (step S404).

Next, the controller21determines whether the user performs the recovery of JAM and the JAM detection sensor SE2detects the resolution of a JAM state (step S405).

In a case where the JAM detection sensor SE2detects the resolution of the JAM state (step S405: YES), the controller21proceeds to step S406.

On the other hand, in a case where the JAM detection sensor SE2does not detect the resolution of the JAM state (step S405: NO), the controller21repeats the processing of step S405until the resolution of the JAM state is detected.

Next, the controller21allows the conveyer25to restart the paper conveyance (step S406).

Next, the controller21conveys the paper until the conveyance speed of the paper is stabilized (step S407).

Next, the controller21restarts the image forming operation (step S408).

Next, the controller21stops the second paper conveyance distance counter C2, reads the value, and stores the value in the storage26as the paper cost of the JAM recovery (step S409).

As described above, the JAM recovery can be included as the factor when managing the paper cost for each factor.

The value of the paper conveyance distance counter C1may be read in step S402, the value of the paper conveyance distance counter C1may be read again in step S409, and a difference from the value read in step S402may be calculated. In this case, a configuration can be obtained in which the second paper conveyance distance counter C2is not provided.

In addition, in the embodiment described above, a configuration in which the image inspection apparatus3is provided in the subsequent stage of the image forming apparatus2is described as an example, but the present invention is not limited thereto. For example, instead of providing the image inspection apparatus3, an image reader may be provided inside the image forming apparatus2(on a downstream from the image former23), a read result of the image reader (read image data) may be output to the controller21, and the read result may be analyzed in the controller21such that a waste is detected.

In addition, the detailed configuration and the detailed operation of each apparatus configuring the image forming system can be suitably modified within a range not departing from the scope of the present invention.

Although embodiments of the present invention have been described and illustrated in detail, the disclosed embodiments are made for purposes of illustration and example only and not limitation. The scope of the present invention should be interpreted by terms of the appended claims.