Printing system, control method thereof, and program

Abstract

To provide a printing system equipped with a static eliminator, which can eliminate static electricity from a sheet with an appropriate amount of charge according to a type of sheet and a printing environment.SOLUTION: The printing system controls to interpret a print job setting, acquire a type of sheet to be used for a print process, acquire a printing environment, acquire a reference value for a charge adjustment value for static elimination according to the sheet type and the printing environment, display a reference value for the charge adjustment value for static electricity elimination, and display a message prompting a user to check a setting value of an adjustment dial, and an indication instructing the user to continue the print process.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a printing system having a charge elimination function for eliminating charge from a charged sheet, a control method thereof, and a program.

Background Art

[0002] A recording medium (hereinafter referred to as "sheet") used in printing operations is conveyed in a charged state due to residual charge in the electrophotographic process or slight friction with a conveyance roller or guide that occurs during sheet conveyance. Due to this static electricity, the sheets may stick to each other. In addition, the quality of the product may deteriorate due to dust or paper powder adhering to the product. Ordinary paper and the like have a low electrical resistance of the sheet itself, and charges move easily within the sheet, and the amount of charge itself is small, so it is quickly eliminated. However, sheets made of synthetic resin (plastic) such as thick paper, synthetic paper, and coated paper have a high electrical resistance of the sheet itself, and charge movement within the sheet hardly occurs. Therefore, as a result, sheets such as synthetic paper and coated paper tend to be more easily charged and have a tendency to retain charges. In addition, it is generally known that it is easily affected by the environment, particularly humidity, and the lower the humidity, the more easily it becomes charged due to the effect of reducing the amount of discharge into the air. If post-processing is performed with the sheets stuck together, it will not only affect the alignment process of the sheets and reduce the quality of the post-processing, but may also induce jams (JAM) due to paper feeding failure or conveyance failure during post-processing, and may damage the sheets and equipment. Therefore, in order not to cause such risks, it is desirable to eliminate the static electricity of the sheets after the printing process before performing post-processing. Therefore, proposals have been made to cancel the charges charged on the sheet by applying a voltage to a pair of conveyance rollers located downstream in the sheet conveyance direction (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the conventional configuration in which a voltage is applied to a conveyance roller as described above (hereinafter referred to as a "static elimination roller"), static elimination is achieved by applying a charge opposite to the charge charged on the sheet to the sheet via the static elimination roller, thereby canceling the static electricity. Therefore, the setting of the static elimination amount by the static elimination roller (application of a charge opposite to the sheet to the static elimination roller) needs to be carried out in accordance with the charge amount of the sheet. That is, for each printing environment such as humidity and type of sheet, there is an optimum charge adjustment value for static elimination. In addition, if the user starts printing without checking the charge adjustment value for static elimination, there is a possibility that static elimination control is performed on the sheet with an inappropriate charge adjustment value set. In such a case, conversely, the sheet may be charged, which may lead to further sticking of the sheet. The present invention has been made to solve the above problems. An object of the present invention is to provide a mechanism capable of performing static elimination with an appropriate charge amount according to the type of sheet and the printing environment.

Means for Solving the Problems

[0005] The present invention is a printing system having a static elimination device capable of changing the setting of the static elimination process, and includes a first acquisition means for interpreting the setting of a print job and acquiring the type of sheet used in the print process, a second acquisition means for acquiring the printing environment, a third acquisition means for acquiring a reference value of a charge adjustment value for static elimination according to the type of the sheet and the printing environment, and a control means for controlling to display a message for displaying the reference value of the charge adjustment value for static elimination and prompting confirmation of the set value of the adjustment dial, and a display for instructing continuation of the print process on a display means.

Effects of the Invention

[0006] According to the present invention, static elimination can be performed with an appropriate amount of charge according to the type of sheet and the printing environment.

Brief Description of the Drawings

[0007]

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Embodiments for Carrying Out the Invention

[0008] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. Note that the following embodiments do not limit the invention according to the claims, and not all combinations of the features described in the embodiments are essential for the solution means of the invention. [Embodiment 1]

[0009] ·Overall configuration of the system FIG. 1 is a diagram illustrating the overall configuration of a system showing an embodiment of the present invention. The system of this embodiment has a printing system 1000 and a PC 102 which is a client computer, and they are connected to each other via a network 101. The PC 102 can transmit (page description language) code data which is a print job to the printing system 1000 via the network 101. ·Hardware configuration of the printing system FIG. 2 is a block diagram illustrating the hardware configuration of the printing system 1000. The printing system 1000 has a printing device 100 which is the part surrounded by the dotted line in the figure, and a sheet processing device 200. Note that any number of sheet processing devices 200 can be connected to the printing device 100. The sheet processing device 200 of this embodiment will be described by taking an example consisting of a static eliminator 200-3a and an in-line binder 200-3b. Also, in this embodiment, as the printing device 100, an MFP (Multi Function Peripheral) having a plurality of functions such as a copy function and a printer function will be taken as an example for description. However, the printing device 100 may be a single-function type printing device having only a copy function or only a printer function. In this embodiment, as an example, it is assumed that the printing system 1000 has various constituent elements described below. The printing system 1000 is configured such that sheet processing for a sheet (also referred to as "paper") printed by the printing device 100 can be executed by the sheet processing device 200 connected to the printing device 100. However, it is also possible to configure the printing system 1000 with only the printing device 100 without connecting the sheet processing device 200.

[0010] (Static eliminator) The static eliminator 200-3a is configured to be communicable with the printing device 100, receive an instruction from the printing device 100, and execute a static elimination process as described later. The static elimination operation unit 220 has a configuration as shown in FIG. 5 described later, and via the static elimination operation unit 220, the user can perform settings for the static eliminator 200-3a. In addition, the user may be able to set the power-off device 200-3a via the main body operation unit 204 as described later. (Saddle-stitch binding machine) The saddle-stitch binding machine 200-3b is configured to be communicable with the printing device 100, and can execute sheet processing as described later in response to an instruction from the printing device 100.

[0011] (Printing device) The scanner unit 201 reads an image on a document, converts it into image data, and transfers it to other units. The external I / F 202 transmits and receives data to and from an external device connected to the network 101. The printer unit 203 prints an image based on the input image data on a sheet. As shown in FIG. 4, the main body operation unit 204 is composed of a touch panel unit 401 and a hard key input unit 402, and receives instructions from the user via them. In addition, the main body operation unit 204 performs various displays on the touch panel unit 401. The CPU 205 is a central control device, and comprehensively controls the processing and operations of various units included in the printing system 1000. That is, it also controls the operations of the printing device 100 and the sheet processing device 200 connected to the printing device 100. The environment sensor 206 is a general term for sensors that detect the installation environment such as temperature and humidity. In the present embodiment, a temperature sensor and a humidity sensor are applicable. As the temperature sensor, a thermistor that measures the temperature in the air is common. Regarding the humidity sensor, one that detects the humidity in the air from a change in capacitance is common, and their outputs are output as electrical signals. The CPU 205 constantly monitors the temperature and humidity of the environment in which the printing device 100 is installed and reflects it in the control of the printing device 100. The ROM 207 stores various computer programs to be executed by the CPU 205. For example, the ROM 207 stores programs for causing the CPU 205 to execute various processes of the flowchart described later, and a display control program necessary for displaying various setting screens described later. Further, the ROM 207 stores a program for the CPU 205 to interpret the PDL code data received from the PC 102 and execute an operation of expanding it into raster image data. In addition, the ROM 207 stores a boot sequence, font information, and the like.

[0012] The RAM 208 stores image data and PDL code data sent from the scanner unit 201 or the external I / F 202, various programs loaded from the ROM 207, and setting information. Further, the RAM 208 stores information regarding the sheet processing device 200 (information regarding the type and functions of the sheet processing device 200 connected to the printing device 100, etc.). The CPU 205 can use the information regarding the sheet processing device 200 stored in the RAM 208 for its control. The HDD (Hard Disk Drive) 209 is composed of a hard disk and a drive unit for reading and writing data to the hard disk. The HDD 209 is a large-capacity storage device for storing the image data input from the scanner unit 201 and compressed by the compression / decompression unit 210. The CPU 205 can print the image data stored in the HDD 209 by the printer unit 203 based on an instruction from the user. Further, the HDD 209 is also used as a spooler, and the CPU 205 can manage the PDL code data received from the PC 102 as a print job and store it in the HDD 209. In addition, the CPU 205 can manage the print jobs stored in the HDD 209, and can also acquire the number of stored print jobs and the setting information made for the print jobs. Note that a configuration may be adopted in which another storage device such as an SSD (Solid State Drive) or an eMMC (embedded Multi Media Card) is provided instead of or in combination with the HDD. The compression and expansion unit 210 performs compression and expansion operations on image data and the like stored in the RAM 208 and the HDD 209 by various compression methods such as JBIG and JPEG. Although details will be described later, the printing system 1000 of the present embodiment is a printing system having a charge removal device whose charge removal function settings can be changed.

[0013] ·Detailed configuration of the printing system FIG. 3 is a diagram illustrating a cross section of the printing device 100 and the sheet processing device 200 connected to the printing device 100 in Embodiment 1. The sheet processing device 200 of the present embodiment includes a charge removal device 200-3a and an in-line binding machine 200-3b. <Printing device> First, the printing device 100 will be described. The automatic document feeder (ADF) 301 separates the stack of documents set on the loading surface of the document tray page by page in page order, and conveys them onto the document table glass for document scanning by the scanner 302. The scanner 302 reads the image of the document conveyed onto the document table glass and converts it into image data by a CCD. The rotating polygon mirror (such as a polygon mirror) 303 makes incident a light beam such as a laser beam modulated according to the image data, and irradiates the photosensitive drum 304 with the reflected scanning light through a reflection mirror. The latent image formed on the photosensitive drum 304 by the laser beam is developed with toner, and the toner image is transferred onto the sheet material attached to the transfer drum 305. By sequentially performing this series of image forming processes for the toners of yellow (Y), magenta (M), cyan (C), and black (K), a full-color image is formed. After the four image forming processes, the sheet material on the transfer drum 305 on which the full-color image has been formed is separated by the separation claw 306 and conveyed to the fuser 308 by the pre-fusing conveyor 307. The fuser 308 is composed of a combination of rollers and belts, has a heat source such as a halogen heater built therein, and melts and fixes the toner on the sheet material onto which the toner image has been transferred by heat and pressure. The paper discharge flapper 309 is configured to be swingable about a swing axis and defines the conveyance direction of the sheet material. When the paper discharge flapper 309 swings in the clockwise direction in the figure, the sheet material is conveyed straight and discharged outside the machine by the paper discharge roller 310. The CPU 205 controls the printing apparatus 100 to execute single-sided printing by means of the series of sequences as described above. On the other hand, when forming an image on both sides of the sheet material, the paper discharge flapper 309 swings in the counterclockwise direction in the figure, and the sheet material changes its path downward and is fed into the duplex conveyance unit. The duplex conveyance unit includes a reversal flapper 311, a reversal roller 312, a reversal guide 313, and a duplex tray 314.

[0014] The reversal flapper 311 swings about a swing axis and defines the conveyance direction of the sheet material. When processing a duplex printing job, the CPU 205 controls the printer unit 203 to swing the reversal flapper 311 in the counterclockwise direction in the figure and feed a sheet that has been printed on the first side of the sheet through the reversal roller 312 to the reversal guide 313. Then, with the rear end of the sheet material pinched by the reversal roller 312, the reversal roller 312 is temporarily stopped, and then the reversal flapper 311 is swung in the clockwise direction in the figure to rotate the reversal roller 312 in the reverse direction. By doing so, the sheet is switched back and conveyed, and in a state where the rear end and the front end of the sheet are swapped, this sheet is controlled to be guided to the duplex tray 314. In the duplex tray 314, the sheet material is temporarily stacked, and then the sheet material is fed again to the registration roller 316 by the re-feed roller 315. At this time, the sheet material is fed with the side opposite to the first transfer process facing the photosensitive drum. Then, an image of the second side is formed on the second side of the sheet in the same process as described above. Then, images are formed on both sides of the sheet material, and after the fixing process, the sheet is discharged from inside the main body of the printing apparatus 100 to the outside through the paper discharge roller 310. The CPU 205 controls the printing apparatus 100 to execute duplex printing by means of the series of sequences as described above. The printing apparatus 100 also has a sheet feeding unit that stores sheets required for printing. The sheet feeding unit includes sheet feeding cassettes 317 and 318 (for example, each capable of accommodating 500 sheets), a sheet feeding deck 319 (for example, capable of storing 5000 sheets), a manual feed tray 320, and the like. The sheet feeding cassettes 317 and 318 and the sheet feeding deck 319 can be set separately for each sheet feeding unit with various sheets of different sizes and materials. Also, various sheets including special sheets such as OHP sheets can be set on the manual feed tray 320.

[0015] <Static eliminator device> Next, the static eliminator device 200-3a will be described. The static eliminator device 200-3a has a static elimination roller 322 and a pair of rollers. The sheet conveyed to the static eliminator device 200-3a is conveyed while being sandwiched between both rollers, and rough static elimination by the above-mentioned static elimination roller 322 is performed. Then, while being conveyed outside the device by the conveying roller 324, the static elimination process of residual charges is executed by the ionizer 323. (Static elimination operation unit) FIG. 5 is a diagram illustrating the static elimination operation unit 220 of the static eliminator device 200-3a. The mode setting switch 601 in FIG. 5 switches whether to perform static elimination by the static eliminator device 200-3a (ON / OFF). The CPU 205 controls to execute the static elimination process described later only when the switch is ON. Also, the adjustment dial 602 composed of a thumb rotary switch adjusts the strength of the static elimination control performed when the mode setting switch 601 is ON, and is controlled by the CPU 205 so as to be effective only when the mode setting switch 601 is ON.

[0016] <Static elimination process> Here, the static elimination process performed by the static eliminator device 200-3a will be described with reference to FIG. 6. FIG. 6 is a diagram schematically showing the state in which the static elimination process by the static eliminator device 200-3a is performed on the sheet on which the printing process has been executed by the printing apparatus 100. First, the sheet 701 is conveyed through the conveyance path 704 to the developing and transferring unit composed of the photosensitive drum 304 and the transfer drum 305, and toner is placed on the sheet. The charged toner 702 placed on the sheet is negatively charged. Next, the sheet after being fixed through the fixing device 308 is conveyed to the static eliminator 200-3a with the printed surface 703 side negatively charged. The static eliminator 200-3a is equipped with a positively charged static elimination roller 322, and gives positive charges to the negatively charged printed surface 703 by contact static elimination with the static elimination roller 322 to eliminate the charging state. However, it is assumed that negative charges that cannot be completely removed by the static elimination treatment with the static elimination roller 322, or conversely, positively charged remaining charges, remain on the sheet 705 after passing through the static elimination roller. Therefore, the static eliminator 200-3a taken up in the present embodiment further has an ionizer 323 downstream of the static elimination roller 322. The ionizer 323 is a device that generates corona discharge by applying a voltage to the electrode needles provided in the device itself, and uses the ions generated thereby to eliminate charging. In this way, rough static elimination is performed by the static elimination roller 322, and the remaining charges are adjusted by the ionizer 323, so that the sheet 707 after the static elimination treatment discharged from the static eliminator 200-3a is in a state where the charging is eliminated.

[0017] <Saddle-stitching bookbinding machine> Next, the saddle-stitching bookbinding machine 200-3b will be described. The sheet processing by the saddle-stitching bookbinding machine 200-3b includes, for example, saddle-stitching bookbinding, punching processing, cutting processing, shift paper discharge processing, folding processing, stapling processing, etc. Here, these jobs are called "saddle-stitching bookbinding jobs". When processing the saddle-stitching bookbinding job, first, the CPU 205 conveys the sheets of this job printed by the printing device 100 to the saddle-stitching bookbinding machine 200-3b, and then the CPU 205 causes the saddle-stitching bookbinding machine 200-3b to execute the sheet processing of this job. Then, the CPU 205 causes the saddle-stitching bookbinding machine 200-3b to hold the printed matter of the saddle-stitching bookbinding job for which the sheet processing has been performed at the paper discharge destination Z of the saddle-stitching bookbinding machine 200-3b. Note that there are a plurality of paper discharge destination candidates at the paper discharge destination Z. This It is used when the saddle stitching bookbinding machine 200-3b can execute a plurality of types of sheet processing and separates the paper discharge destinations for each sheet processing. In this embodiment, the detailed conveyance procedure of the saddle stitching bookbinding job will be omitted.

[0018] <Printing process> FIG. 7 is a flowchart for explaining the printing process of Embodiment 1. The processing of this flowchart is realized by the CPU 205 of the printing apparatus 100 expanding and executing a program stored in the ROM 207, HDD 209, etc. into the RAM 208. This processing starts when a printing job is input to the printing system 1000. When the printing process starts, in S101, the CPU 205 of the printing apparatus 100 interprets the settings of the input printing job and selects the optimal paper feed unit to obtain the type of sheet used for printing. Subsequently, in S102, the CPU 205 of the printing apparatus 100 obtains the temperature information detected by the environment sensor 206. In this embodiment, the temperature information is obtained in °C units. Similarly, in S103, the CPU 205 of the printing apparatus 100 obtains the humidity information detected by the environment sensor 206. In this embodiment, the humidity information is obtained in % units. Next, in S104, the CPU 205 of the printing apparatus 100 collates the temperature information obtained in S102 and the humidity information obtained in S103 with the environment table 1001 in which the printing environment shown in FIG. 10 is set and stored in the ROM 207 in advance to obtain the printing environment. In this embodiment, the printing environment is classified into three types: low temperature and low humidity, normal temperature and normal humidity, and high temperature and high humidity.

[0019] <Environment table> FIG. 10 is a diagram showing an example of each printing environment divided into a plurality of regions of the environment table 1001 based on the temperature and humidity of the present embodiment. The temperature shown in the column direction (the left - right direction in FIG. 10) of the environment table 1001 shown in FIG. 10 divides the temperature range of 0°C to 40°C in 5°C increments, and the humidity shown in the row direction (the up - down direction in FIG. 10) of the environment table 1001 divides the range of 0% to 100% in 10% increments. Thus, the printing environment is divided into three types: low temperature and low humidity, normal temperature and normal humidity, and high temperature and high humidity. In FIG. 10, for example, when the temperature is 20°C, the printing environment is low temperature and low humidity when the humidity is 0% or more and less than 30%, normal temperature and normal humidity when the humidity is 30% or more and less than 70%, and high temperature and high humidity when the humidity is 70% or more. Next, in S105, the CPU 205 of the printing apparatus 100 acquires a reference value of the charge adjustment value for static elimination corresponding to the sheet type acquired in S101 and the printing environment acquired in S104 from the charge adjustment value table 1101 (FIG. 11) pre - stored in the ROM 207.

[0020] <Charge adjustment value table> FIG. 11 is a diagram showing an example of the charge adjustment value table 1101. As shown in FIG. 11, the charge adjustment value table 1101 stores reference values of the charge adjustment values for static elimination corresponding to various printing environments and various sheet types. Note that the entity of the charge adjustment value table 1101 is stored in, for example, the ROM 207. In FIG. 11, for example, when the sheet type acquired in step S101 is "synthetic paper" and the printing environment acquired in step S104 is "normal temperature and normal humidity", the reference value of the charge adjustment value for static elimination is 30 - 50. This is a value indicating the recommended range when the user sets a value with the adjustment dial 602. Next, in S106, the CPU 205 of the printing apparatus 100 displays a printing start confirmation screen 901 as illustrated in FIG. 9 on the main body operation unit 204 of the printing apparatus.

[0021] <Printing start confirmation screen> FIG. 9 is a diagram illustrating the printing start confirmation screen 901. On the printing start confirmation screen 901, the CPU 205 of the printing apparatus 100 notifies the user of a message 902 indicating that it is necessary to confirm the set value of the adjustment dial of the static eliminator, displays the reference value 903 acquired in step S105, and asks for confirmation of continuing the printing. When the user wishes to continue the printing, the user checks the setting of the adjustment dial 602 of the static eliminator, changes the setting, and then presses the [Continue Printing] button 904 to instruct the continuation of the printing. Through such a screen, the printing system 1000 is configured to allow the user to confirm whether the setting of the static eliminator is in a state according to the type of sheet and the printing environment, and to perform an operation of instructing the continuation of the printing. Next, in S107, the CPU 205 of the printing apparatus 100 determines whether the [Continue Printing] button 904 has been pressed on the printing start confirmation screen 901 shown in FIG. 9. Here, if it is determined that the [Continue Printing] button 904 has not been pressed (No in S107), the system waits until it is pressed. On the other hand, if it is determined that the [Continue Printing] button 904 has been pressed (Yes in S107), the CPU 205 of the printing apparatus 100 proceeds to the process of S108. In S108, the CPU 205 of the printing apparatus 100 resumes the printing process according to the instruction to start printing and executes the printing. Thereafter, in S109, the CPU 205 of the printing apparatus 100 performs a static elimination process on the sheet on which the printing process has been performed according to the setting of the static elimination operation unit 220. Next, in S110, the CPU 205 of the printing apparatus 100 determines whether the printing job has been completed. Here, if the printing job has not been completed yet (No in S110), the CPU 205 of the printing apparatus 100 returns the process to S108. On the other hand, if the printing job has been completed (Yes in S110), the CPU 205 of the printing apparatus 100 ends the process of this flowchart. As described above, in the first embodiment, by controlling the printing system 1000 including the static eliminator 200-3a, the display of the reference value of the static elimination amount in the static elimination function according to the type of sheet and the printing environment, and the display of a message for prompting the user to confirm the set value are performed. This can suppress the occurrence of a situation where the static elimination is performed with an inappropriate static elimination amount that does not match the type of sheet and the printing environment. Therefore, printing can be performed with an appropriate static elimination amount according to the type of sheet and the printing environment. That is, it is possible to reduce the risk that the static elimination control is performed while the charge adjustment state of the sheet used for printing is inappropriate.

[0022] [Embodiment 2] In the above-described Embodiment 1, a method of displaying a reference value according to the type of sheet and the printing environment and performing a warning display to prompt confirmation of the charge adjustment value for static elimination has been described. However, in the configuration of Embodiment 1, even when the charge adjustment value for static elimination is within the range of the reference value, a warning display for prompting confirmation of the charge adjustment value for static elimination may be performed. Therefore, in Embodiment 2, when the charge adjustment value for static elimination is within the range of the reference value, a warning display for prompting confirmation of the charge adjustment value for static elimination is not performed.

[0023] <Printing process> FIG. 8 is a flowchart for explaining the printing process of Embodiment 2. The processing of this flowchart is realized by the CPU 205 of the printing apparatus 100 expanding and executing a program stored in the ROM 207, the HDD 209, etc. into the RAM 208. This processing is executed when a print job is input to the printing system 1000. In FIG. 8, the same step numbers are assigned to the same steps as in FIG. 7. Hereinafter, the description of the same steps will be omitted, and only different steps will be described. In Embodiment 2, after the processing of S105, the CPU 205 of the printing apparatus 100 proceeds to the processing of S201. Next, in S201, the CPU 205 of the printing apparatus 100 acquires the set value of the static elimination amount of the static elimination device 200-3a. This processing is realized by the CPU 205 acquiring the setting state of the adjustment dial 602 of the static elimination operation unit 220 via the static elimination device 200-3a. Next, in S202, the CPU 205 of the printing apparatus 100 checks whether the adjustment dial acquired in S201 is within the range of the reference value acquired in S105. When it is determined in S202 that the set value is not within the range of the reference value (No in S202), the CPU 205 of the printing apparatus 100 proceeds with the process to S106. On the other hand, when it is determined that the set value is within the range of the reference value (Yes in S202), the CPU 205 of the printing apparatus 100 determines that printing can continue as it is and proceeds with the process to S108. That is, in this case, the CPU 205 of the printing apparatus 100 does not perform a warning display for prompting confirmation of the charge adjustment value for static elimination. As described above, when the adjustment dial set value in the printing process is within the range of the reference value of the static elimination setting according to the sheet type and the printing environment, control is performed as follows. That is, the printing system 1000 including the static eliminator 200-3a is controlled so as not to perform confirmation of the continuation of the printing process. Thereby, it is possible not to perform a warning display for prompting confirmation of the charge adjustment value for static elimination.

[0024] As described above, according to each embodiment, static elimination can be performed with an appropriate charge amount according to the sheet type and the printing environment. As a result, for example, when there are changes in the sheet type and the printing environment, it is possible to reduce the occurrence of a situation where the sheet is statically eliminated with an inappropriate static elimination setting. That is, it is possible to reduce the risk that the static elimination control is performed in a state where the charge adjustment of the sheet is inappropriate. Note that the configurations and contents of the various types of data described above are not limited to these, and it goes without saying that they may be configured with various other configurations and contents according to the use and purpose.

[0025] (Other Embodiments) The present invention can also be realized by supplying a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and having one or more processors in a computer of the system or apparatus read and execute the program. Further, it can also be realized by a circuit (for example, ASIC) that realizes one or more functions. In addition, although one embodiment has been described above, the present invention can be implemented in embodiments such as a system, apparatus, method, program, or storage medium. Specifically, it may be applied to a system composed of a plurality of devices, or it may be applied to an apparatus composed of a single device. In addition, all configurations combining the above-described embodiments are also included in the present invention.

[0026] The disclosure of this embodiment includes the following configurations, methods, and programs. (Configuration 1) A printing system having a static eliminator capable of changing the setting of the static elimination process, a first acquisition means for interpreting the setting of a print job and acquiring the type of sheet used for the printing process, a second acquisition means for acquiring the printing environment, a third acquisition means for acquiring a reference value of a charge adjustment value for static elimination according to the type of the sheet and the printing environment, control means for controlling to display a reference value of the charge adjustment value for static elimination, a message prompting confirmation of the setting value of the adjustment dial, and a display for instructing continuation of the printing process on a display means A printing system characterized by comprising the same. (Configuration 2) The second acquisition means acquires the printing environment based on the temperature and humidity detected by an environmental sensor A printing system according to Configuration 1, characterized by the above. (Configuration 3) The printing environment is divided into a plurality in an environment table based on temperature and humidity, The second acquisition means acquires the printing environment by collating the temperature and humidity detected by the environmental sensor with the environment table A printing system according to Configuration 2, characterized by the above. (Configuration 4) The control means controls to wait for the printing process until an operation is performed on the display instructing continuation of the printing displayed on the display means A printing system according to any one of Configurations 1 to 3, characterized by the above. (Configuration 5) It has a fourth acquisition means for acquiring the set value, The control means, When the set value acquired by the fourth acquisition means is within the range of the reference value of the charge adjustment value for static elimination, it controls so as not to perform the display by the display means The printing system according to any one of claims 1 to 3, characterized in that. (Method 1) A control method for a printing system having a static elimination device capable of changing the setting of static elimination processing, A first acquisition step of interpreting the setting of a print job and acquiring the type of sheet used for printing processing, A second acquisition step of acquiring the printing environment, A third acquisition step of acquiring a reference value of a charge adjustment value for static elimination according to the type of the sheet and the printing environment, A control step of controlling to display on the display means a message for displaying the reference value of the charge adjustment value for static elimination and prompting confirmation of the set value of the adjustment dial, and a display for instructing continuation of the printing process A control method for a printing system, characterized by having. (Program 1) A program for causing a computer to execute the control method for a printing system according to Method 1.

Explanation of Signs

[0027] 100 Printing device 200-3a Static elimination device

Claims

1. A printing system having a static elimination device whose static elimination processing settings can be changed, a first acquisition means for interpreting the settings of a print job and acquiring the type of sheet used for printing processing, a second acquisition means for acquiring the printing environment, a third acquisition means for acquiring a reference value of a charge adjustment value for static elimination according to the type of the sheet and the printing environment, a control means for controlling to display on a display means a reference value of a charge adjustment value for static elimination, a message prompting confirmation of a setting value of an adjustment dial, and a display for instructing continuation of the printing processing The printing system is characterized by comprising.

2. The second acquisition means acquires the printing environment based on the temperature and humidity detected by an environmental sensor The printing system according to claim 1, characterized in that.

3. The printing environment is divided into a plurality in an environment table based on temperature and humidity, The second acquisition means acquires the printing environment by collating the temperature and humidity detected by the environmental sensor with the environment table The printing system according to claim 2, characterized in that.

4. The control means controls to wait for the printing processing until an operation is performed on the display instructing continuation of the printing displayed on the display means The printing system according to any one of claims 1 to 3, characterized in that.

5. It has a fourth acquisition means for acquiring the setting value, The control means, When the setting value acquired by the fourth acquisition means is within the range of the reference value of the charge adjustment value for static elimination, controls not to perform the display by the display means The printing system according to any one of claims 1 to 3, characterized in that.

6. A control method for a printing system having a static elimination device whose static elimination processing settings can be changed, a first acquisition step for interpreting the settings of a print job and acquiring the type of sheet used for printing processing, a second acquisition step for acquiring the printing environment, a third acquisition step for acquiring a reference value of a charge adjustment value for static elimination according to the type of the sheet and the printing environment, a control step for controlling to display on a display means a reference value of a charge adjustment value for static elimination, a message prompting confirmation of a setting value of an adjustment dial, and a display for instructing continuation of the printing processing The control method for a printing system is characterized by comprising.

7. A program for causing a computer to execute the control method for a printing system according to claim 6.

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