Printing system, printer, control method of printing system, control method of printer, and program

Abstract

To solve a problem that a paper jam may occur in print processing unless proper static elimination processing is performed based on a use environment and a type of a sheet in the print processing to the sheet, however, there was no way for users to know that the paper jam is caused due to the static elimination processing.SOLUTION: A printing system 1000 includes: a printer 100 which performs print processing to sheets; and a static elimination apparatus 200-3a configured to perform static elimination processing on the printed sheet. In a case where a paper jam occurs, control means suspends the print processing and causes display means to display an occurrence position of the paper jam and a message 1002 prompting a user to check static elimination setting.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a printing system, a printing device, a control method for a printing system, a control method for a printing device, and a program. [Background technology]

[0002] Recording media used in printing (hereafter referred to as "sheets") are transported in a statically charged state, due to residual charge during the electrophotographic process, or slight friction with transport rollers and guides that occurs during sheet transport. This static electricity can cause sheets to stick together or to the rollers, resulting in jams. It can also cause dust and paper powder to adhere to the finished product, resulting in a decrease in the quality of the finished product. For example, ordinary paper has a low electrical resistance, and charges move easily within the paper. Therefore, the amount of charge is small and dissipates quickly, but sheets made of synthetic resin (plastic), such as cardboard, synthetic paper, and coated paper, have a high electrical resistance, and charge movement is less likely to occur within the paper. As a result, sheets such as synthetic paper and coated paper tend to be more likely to become charged and retain a charge. In addition, it is easily affected by the environment, especially humidity, and it is generally known that the lower the humidity, the less discharged the charge is into the air, making it easier for static electricity to build up.

[0003] If post-processing is performed while the sheets are stuck together, it will not only affect the sheet alignment process and reduce the quality of the post-processing, but it may also induce jams due to poor paper feeding or transport during post-processing, and may damage the sheets and equipment. Therefore, in order to prevent such a risk from occurring, it is desirable to remove static electricity from the sheet after the printing process before carrying out post-processing. Therefore, a proposal has been made to apply a voltage to a pair of transport rollers located downstream in the sheet transport direction to cancel the electric charge on the sheet (Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-258881 Summary of the Invention [Problem to be solved by the invention]

[0005] In the case of static elimination using a configuration in which a voltage is applied to a transport roller (hereinafter referred to as a "static elimination roller"), a charge opposite to the charge on the sheet is applied to the sheet via the static elimination roller, thereby canceling the static electricity. Therefore, static elimination control using the static elimination roller (application of a charge opposite to that of the sheet to the static elimination roller) needs to be performed appropriately according to the amount of charge on the sheet. In other words, this means that there is an optimal charge adjustment value for static elimination for each printing environment such as humidity and each brand of sheet. If static elimination control is performed on a sheet with inappropriate charge adjustment, it may cause charging instead, which may cause the sheet to stick further or may lead to a jam due to the sheet sticking to the roller. When a jam occurs, the location of the jammed paper was previously notified to the user and the user was asked to remove the sheet, but when the static elimination device is connected, it is not noticed that an incorrect charge adjustment value may cause charging and lead to a jam. In this case, even if the jam is cleared by removing the jammed sheet, the true cause of the error is not resolved, and the same jam will occur when the job is executed again. The present invention aims to provide a printing system that, when a paper jam occurs and printing processing is stopped, notifies a user that this may be due to discharge control being performed with inappropriate charge adjustment on the sheet. [Means for solving the problem]

[0006] The present invention is a printing system comprising a printing device that executes a printing process on a sheet and a discharge device that performs a discharge process on the printed sheet, and is characterized in having a control means that interrupts the printing process when a sheet jam occurs, and a display means that displays at least the location where the jam has occurred and a message that prompts the user to check the discharge settings. Effect of the Invention

[0007] According to the above, when a paper jam occurs and the printing process is stopped, the user can be notified that this may be due to the discharge control being performed in a state where the charge adjustment on the sheet is inappropriate. [Brief description of the drawings]

[0008] [Figure 1] Hardware configuration diagram of the system according to the embodiment [Diagram 2] Printing device software block diagram [Diagram 3] Cross-section of the printing system [Figure 4] Overview of the operation unit of the printing device [Diagram 5] Software block diagram of the static eliminator [Figure 6] FIG. 1 is a diagram of an operation unit provided in a static eliminator. [Figure 7] Schematic diagram of static elimination processing [Figure 8] 1 is a flowchart showing a jam error display process according to an embodiment of the present invention; [Figure 9] Flowchart showing a jam error display process according to another embodiment [Figure 10] Jam error notification screen [Figure 11] A flowchart showing a display process of a jam error display screen according to another embodiment. [Figure 12] A flowchart showing a display process of a jam error display screen according to still another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the following embodiments do not limit the invention as defined by the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0010] <First embodiment> 1 shows the simplest configuration of this embodiment, which includes a printing system 1000 and a client computer 102 (hereinafter referred to as "PC"), which are connected to each other via a network 101. The PC 102 can transmit PDL (page description language) code data, which is a print job, to the printing system 1000 via the network 101.

[0011] Printing system hardware configuration (Hardware block diagram) 2 is a hardware block diagram of the printing system 1000. The printing system 1000 includes a printing apparatus 100, which is enclosed by a dotted line in the figure, and a sheet processing apparatus 200. Any number of sheet processing apparatuses 200 can be connected to the printing apparatus 100. In addition, in this embodiment, the printing apparatus 100 will be described by taking as an example an MFP (Multi Function Peripheral) having multiple functions such as a copy function and a printer function. However, the printing apparatus 100 may be a single-function printing apparatus having only a copy function or only a printer function.

[0012] The printing system 1000 is configured so that sheet processing for sheets printed by the printing device 100 can be performed by a sheet processing apparatus 200 connected to the printing device 100. However, it is also possible to configure the printing system 1000 using only the printing device 100 without connecting the sheet processing apparatus 200. The sheet processing apparatus 200 is configured to be able to communicate with the printing apparatus 100, and can receive instructions from the printing apparatus 100 and execute sheet processing as described below. A 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 other devices connected to the network 101 . The printer unit 203 prints an image based on the input image data onto a sheet. 4, the operation unit 204 has a hard key input unit (key input unit) 402 and a touch panel unit 401, and receives instructions from a user via them. The operation unit 204 also displays various information on the touch panel unit 401 that the operation unit 204 has.

[0013] The control unit 205 comprehensively controls the processing and operation of various units included in the printing system 1000. In other words, the control unit 205 also controls the operation of the printing apparatus 100 and the sheet processing apparatus 200 connected to the printing apparatus 100. The ROM 207 stores various computer programs executed by the control unit 205. For example, the ROM 207 stores programs for causing the control unit 205 to execute various processes in flowcharts described below, and display control programs required to display various setting screens described below. The ROM 207 also stores programs for the control unit 205 to interpret PDL code data received from the PC 102 and expand it into raster image data. The ROM 207 also stores a boot sequence, font information, etc. The RAM 208 stores image data and PDL code data sent from the scanner unit 201 and the external I / F 202, various programs loaded from the ROM 207, and setting information. The RAM 208 also stores information related to the sheet processing apparatus 200 (such as information related to the type and function of each sheet processing apparatus 200 connected to the printing apparatus 100). The control unit 205 can use the information related to the sheet processing apparatus 200 stored in the RAM 208 for control. The HDD (hard disk drive) 209 is composed of a hard disk and a drive unit that reads and writes data to the hard disk. The HDD 209 is a large-capacity storage device for storing image data input from the scanner unit 201 and compressed by the compression / decompression unit 210. The control unit 205 can print image data stored in the HDD 209 by the printer unit 203 based on an instruction from a user. The HDD 209 is also used as a spooler, and the control unit 205 can manage PDL code data received from the PC 102 as a print job and store it in the HDD 209. The control unit 205 can also manage the print jobs stored in the HDD 209, and can also acquire the number of print jobs stored and setting information made for the print jobs. The compression / decompression unit 210 compresses and decompresses image data stored in the RAM 208 and HDD 209 using various compression methods such as JBIG and JPEG.

[0014] (Hardware details) Next, the hardware configuration of the printing system 1000 will be described with reference to Fig. 3. Fig. 3 is a cross-sectional view of the printing device 100 and a sheet processing device 200 connected to the printing device 100. The sheet processing device 200 includes a static eliminator 200-3a and a saddle stitcher 200-3b. ·Printing device First, a description will be given of the printing apparatus 100. An automatic document feeder (ADF) 301 separates a stack of documents set on a loading surface of a document tray in page order, starting with the first page, and conveys the documents onto a document glass platen for scanning by a scanner 302. The scanner 302 reads an image of a document conveyed onto a glass platen, and converts the image into image data by a CCD. A rotating polygon mirror (polygon mirror or the like) 303 causes a light beam, such as a laser beam, modulated according to image data to enter the rotating polygon mirror 303, and irradiates the light beam as reflected scanning light onto a photosensitive drum 304 via a reflecting mirror. A latent image formed on the photosensitive drum 304 by the laser beam is developed with toner, and the toner image is transferred to a sheet attached on the transfer drum 305. A full-color image is formed by sequentially executing this series of image formation processes for yellow (Y), magenta (M), cyan (C), and black (K) toners. After four image formation processes, the sheet on the transfer drum 305 with the full-color image formed thereon is separated by a separation claw 306 and conveyed to a fixing unit 308 by a pre-fixing conveyor 307. The fixing unit 308 is made up of a combination of rollers and belts, and has a built-in heat source such as a halogen heater, and melts and fixes the toner on the sheet onto which the toner image has been transferred, by using heat and pressure. The discharge flapper 309 is configured to be swingable around a swing axis and determines the conveying direction of the sheet. When the discharge flapper 309 swings in the clockwise direction in the figure, the sheet is conveyed straight and is discharged outside the machine by the discharge rollers 310. The control unit 205 controls the printing device 100 to perform single-sided printing through the above-mentioned series of sequences.

[0015] On the other hand, when images are to be formed on both sides of the sheet, the discharge flapper 309 swings counterclockwise in the figure, and the sheet is changed course downward and sent to the double-sided conveying section. The double-sided conveying section includes a reversing flapper 311, a reversing roller 312, a reversing guide 313, and a double-sided tray 314. The reversing flapper 311 swings around a swinging shaft to determine the conveying direction of the sheet. When processing a double-sided printing job, the control unit 205 controls the reversing flapper 311 to swing the sheet, whose first side has been printed by the printer unit 203, in the counterclockwise direction in the figure, and to feed the sheet to the reversing guide 313 via the reversing roller 312. Then, the reversing roller 312 is stopped once with the rear end of the sheet being pinched by the reversing roller 312, and the reversing flapper 311 continues to swing in the clockwise direction in the figure. The reversing roller 312 is also rotated in the reverse direction. As a result, the sheet is switched back and conveyed, and the sheet is controlled to be guided to the double-sided tray 314 with the rear end and the front end of the sheet switched. The double-sided tray 314 temporarily stacks the sheet, and then the sheet is fed again to the registration roller 316 by the re-feed roller 315. At this time, the sheet is fed with the side opposite to the transfer process of the first side facing the photosensitive drum. Then, in the same manner as the process described above, a second image is formed on the second side of the sheet. Then, images are formed on both sides of the sheet, and the sheet undergoes a fixing process and is discharged from inside the main body of the printer 100 to the outside of the machine via the paper discharge rollers 310. The control unit 205 controls the printer 100 to perform double-sided printing through the above-mentioned series of sequences.

[0016] The printing device 100 also has a paper feed section that stores sheets required for printing processing. The paper feed section includes paper feed cassettes 317 and 318 (each capable of storing, for example, 500 sheets), a paper feed deck 319 (capable of storing, for example, 5,000 sheets), and a manual feed tray 320. The paper feed cassettes 317 and 318 and the paper feed deck 319 can be used to set various sheets of different sizes and materials separately for each paper feed section. Furthermore, the manual feed tray 320 can be used to set various sheets including special sheets such as overhead projector sheets.

[0017] ·Static eliminator Next, the static eliminator 200-3a will be described. First, Fig. 5 is a system block diagram of the static eliminator 200-3a. The static eliminator also has a control unit 501 separate from the printer 100, and this control unit 501 controls the entire static eliminator 200-3a while communicating with the control unit 205 of the printer 100 in Fig. 2 via a bus (not shown).

[0018] (Operation unit) The operation unit 502 has a configuration as shown in FIG. 6, and the user can perform settings for the static eliminator 200-3a via the operation unit 502. The mode setting switch 601 in FIG. 6 switches whether or not static elimination is performed by the static elimination device 200-3a (ON / OFF), and the control unit 501 controls the static elimination processing unit 503 described later to execute the static elimination processing only when the switch is ON. In addition, the adjustment dial 602, which is configured as 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 control unit 501 so that it is effective only when the mode setting switch 601 is ON. The static elimination processing unit 503 is composed of a static elimination roller 322 and an ionizer 323, which will be described later, and a voltage application controller 321 for each of them, and is responsible for eliminating static electricity from the conveyed sheet. The control unit 501 realizes control of applying voltage to the static elimination roller 322 and the ionizer 323 via the voltage application controller 321. The ROM 504 stores a boot program for the static elimination device 200-3a, a control program for the operation unit 502, a static elimination processing program for the static elimination processing unit 503, etc. Then, the control unit 501 loads necessary programs from the ROM 504 into the RAM 505 as appropriate and executes them.

[0019] Here, the static elimination process performed by the static elimination unit 503 will be described with reference to FIG. FIG. 7 is a schematic diagram showing how the static elimination device 200-3a performs static elimination processing on a sheet that has been printed by the printing apparatus 100. First, the sheet 701 is transported to a developing and transferring section consisting of the photosensitive drum 304 and the transfer drum 305 via a transport path 704, and toner is placed on the sheet. The charged toner 702 placed on the sheet is negatively charged, and the sheet is then transported to the static elimination device 200-3a with the print surface 703 side negatively charged after being fixed through the fixing device 308. The static elimination device 200-3a includes a static elimination roller 322 that is positively charged, and the static elimination roller 322 contact-eliminates static electricity by giving a positive charge to the negatively charged print surface 703, thereby eliminating the charged state. However, it is assumed that the negative charge that could not be removed by the static elimination processing by the static elimination roller 322, or the oppositely charged positive charge, remains on the sheet 705 after the sheet passes through the static elimination roller. Therefore, the static eliminator 200-3a in this embodiment is further configured to include an ionizer 323 downstream of the static elimination roller 322. The ionizer 323 is a device that applies a voltage to an electrode needle provided in the device itself to generate a corona discharge and uses the ions thus generated to eliminate the charge. In this way, rough static elimination is performed by the static elimination roller 322, and the remaining charge is adjusted by the ionizer, so that the sheet 707 after static elimination discharged from the static eliminator 200-3a is in a state where the charge has been eliminated.

[0020] Returning to the explanation using the cross-sectional view of Fig. 3, the static eliminator 200-3a has a static elimination roller 322 and a pair of rollers, and the sheet transported to the static eliminator 200-3a is transported while being sandwiched between the two rollers, and the above-mentioned static elimination is performed by the static elimination roller 322. Thereafter, the sheet is transported outside the device by the transport roller 324, and the residual charge is eliminated by the ionizer 323. (Saddle stitching machine) Next, the saddle stitching machine 200-3b will be described. The sheet processing by the saddle stitching machine 200-3b includes, for example, saddle stitching, punching, cutting, shift discharge, folding, stapling, etc. Here, these jobs are called "saddle stitching jobs". When processing a saddle stitching job, the control unit 205 first conveys the sheets of this job printed by the printing device 100 to the saddle stitching machine 200-3b, and then the control unit 205 causes the saddle stitching machine 200-3b to execute sheet processing of this job. Then, the control unit 205 holds the printed matter of the saddle stitching job that has been subjected to sheet processing by the saddle stitching machine 200-3b in the discharge destination Z of the saddle stitching machine 200-3b. Note that there are multiple discharge destination candidates for the discharge destination Z. This is used when the saddle stitching machine 200-3b can execute multiple types of sheet processing and a discharge destination is divided for each sheet processing. In this embodiment, a detailed description of the conveying procedure of the saddle stitching job is omitted.

[0021] Error display processing Next, an error display process during printing process executed by the printing system 1000 will be described with reference to the flowchart in Fig. 8. This process is realized by the control unit 205, which is a CPU, reading a program stored in the ROM 207 into the RAM 208 and executing it. In step S801, when a print job is received, the control unit 205 of the printing apparatus 100 interprets the received print job and starts executing the print job. In S802, the control unit 205 detects the occurrence and location of a paper jam in the sheet processing apparatus 200 during printing based on the received error code. If it is determined that a paper jam has occurred (Yes in S802), the process proceeds to S803, and if a paper jam has not occurred (No in S802), the process ends because the print job has been processed smoothly to the end. If a paper jam occurs, the control unit 205 stops conveying the sheet in S803. Next, in step S804, the control unit 205 of the printing apparatus 100 causes the operation unit 204 of the printing apparatus 100 to display a jam error notification screen. 10 shows an error notification screen 1001 of the printing system 1000. In S804, the location of the detected paper jam is displayed on a side view of the printing system 1000. Furthermore, in a field 1002, a message is displayed urging the user to recheck the setting values ​​because the paper jam may have been caused by the static electricity removal process. Then, the process ends. As a result, when a paper jam occurs in the printing system 1000, it is possible to point out the possibility that the static electricity removal process is not set appropriately, and to prompt the user to take appropriate measures.

[0022] <Second embodiment> In the first embodiment, an error message is displayed taking into consideration the effect of the static eliminator when a paper jam occurs. However, if the static elimination setting of the static elimination device is set to OFF, the static elimination process is not performed, so there is no effect on the paper jam. Taking this case into consideration, in the second embodiment, a case will be described in which the error message display is switched depending on whether the static elimination device is operating, that is, depending on whether the static elimination setting is ON or OFF.

[0023] Error display processing 9 shows a flowchart of an error display process during printing executed by the printing system 1000. This process is realized by the control unit 205 reading a program stored in the ROM 207 into the RAM 208 and executing it. In S901, the control unit 205 of the printing system 1000 checks whether the static elimination setting of the static eliminator 200-3a is ON or OFF at the time of startup. Specifically, this is realized by the control unit 501 of the static eliminator 200-3a receiving an inquiry from the control unit 205 of the printing device 100 acquiring the state of the mode setting switch 601 of the operation unit 502 of the static eliminator 200-3a and returning the state to the control unit 205 of the printing device 100. In the next step S902, the control unit 205 starts execution of the print process, triggered by the reception of the print job. In S903, the control unit 205 determines whether or not a paper jam has occurred based on the error code notification. If a paper jam has been detected (Yes in S903), the process proceeds to S904, and if a paper jam has not occurred (No in S903), the process ends because the print job was successfully completed to the end. In S904, the control unit 205 performs control to interrupt the conveyance of the sheet. In the next step S905, if the result of checking the static elimination setting (S901) is ON (if the static eliminator is operating), the control unit 205 advances the process to S906. If the result of checking the static elimination setting (S901) is OFF (if the static eliminator is not operating), the control unit 205 advances the process to S907. In S906, the control unit 205 displays an error message (FIG. 10) on the operation unit 204, prompting the user to check the static electricity removal settings in addition to the jam position, and ends the process. In S907, the control unit 205 displays only the jam position on the operation unit 204, and ends the process. According to this embodiment, an error display can be performed taking into consideration the static elimination settings, and it is possible to prompt the user to perform a more appropriate operation.

[0024] <Third embodiment> In the second embodiment, the ON / OFF state of the static elimination setting was considered, but even if the static elimination setting is ON, if a paper jam occurs in a process before the static elimination device 200-3a, there is no effect of the static elimination process. Therefore, in the third embodiment, a case will be described in which an error is displayed according to the positional relationship between the connection position of the static elimination device 200-3a and the position where the paper jam occurred. Error display processing Fig. 11 explains a process of displaying an error message according to the connection position of the static eliminator 200-3a in the first embodiment. The flowchart in Fig. 11 is implemented by the control unit 205 reading a program stored in the ROM 207 into the RAM 208 and executing the program. In S1101, the control unit 205 of the printing system 1000 checks the connection position of the static eliminator 200-3a at startup. Since S801-S803 after the start of the print job are the same processes as in the first embodiment, the description will be omitted. Note that in S802, the occurrence position of the paper jam is detected based on the error code, and this is utilized. In S1102, after a paper jam occurs, control unit 205 compares the connection position of static eliminator 200-3a with the position where the paper jam occurred. If control unit 205 determines that the paper jam occurred in a process after static eliminator 200-3a (Yes in S1102), control unit 205 advances the process to S1103. If control unit 205 determines that the paper jam occurred in a process before static eliminator 200-3a (No in S1102), control unit 205 advances the process to S1104. In S1103, an error message prompting the user to check the static elimination settings in addition to the location where the paper jam has occurred is displayed on the operation unit 204, and the process ends. In S1104, the control unit 205 displays only the jam position on the operation unit 204, and ends the process. According to this embodiment, based on the relative position of the location where the paper jam occurred and the position of the de-ionization device, it is possible to determine whether or not the cause of the paper jab is related to the de-ionization process, and an error message can be displayed, making it possible to prompt the user to perform more appropriate operations.

[0025] <Fourth embodiment> Next, an error display that takes into consideration both the ON / OFF setting of the static elimination process of the static elimination device 200-3a and the connection position of the static elimination device 200-3a will be described with reference to Fig. 12. The flowchart in Fig. 12 is implemented by the control unit 205 reading a program stored in the ROM 207 into the RAM 208 and executing it.

[0026] Error display processing In S1201, the control unit 205 of the printing system 1000 checks whether the static elimination device 200-3a is operating (whether the static elimination setting is ON / OFF) at the time of startup. In S1202, the control unit 205 determines whether the confirmed static elimination setting is ON or OFF. If the static elimination setting is ON, the process proceeds to S1203, and if the static elimination setting is OFF, the process proceeds to S902. In S1203, the control unit 205 checks the connection position of the static eliminator 200-3a. Since S902 to S904 after the start of the print job are the same processes as those in the second embodiment (FIG. 9), the description thereof will be omitted. In the following S1205, if the result of checking the static elimination setting (S1201) is ON (if the device is operating), the control unit 205 proceeds to S1206; if the result of checking the static elimination setting (S1201) is OFF (if the device is not operating), the control unit 205 proceeds to S1208. In S1206, the control unit 205 checks the positional relationship between the connection position of the static elimination device 200-3a and the position where the jam occurred based on the previous static elimination setting check result if the setting is ON. If it is determined that the paper jam occurred in a process after the static elimination device 200-3a (Yes in S1206), the process proceeds to S1207, and if it is determined that the paper jam occurred in a previous process (No in S1206), the process proceeds to S1208. In S1207, an error message prompting the user to check the static electricity removal settings in addition to the jam position is displayed on the operation unit 204, and the process ends. In S1208, the control unit 205 displays only the jam position on the operation unit 204, and ends the process. With these, it is possible to display an appropriate error message according to the relationship between the connection position of the static elimination device 200-3a and the position of the paper jam, and according to whether the static elimination setting is ON or OFF. Although an error message is displayed on the display unit as described above, other notification means such as a voice guide may be used to notify the user.

[0027] The disclosure of this embodiment includes the following configuration, method, and program. (Configuration 1) A printing system including a printing device that executes a printing process on a sheet and a static elimination device that executes a static elimination process on the printed sheet, A control means for interrupting a printing process when a sheet jam occurs; A printing system comprising a display unit that displays at least the location where the jam has occurred and a message that prompts a user to check a static elimination setting. (Configuration 2) A detection means for detecting a position where the jam has occurred is provided, The display means is A message is displayed to prompt confirmation of the static elimination setting according to the positional relationship between the position of the jam detected by the detection means and the connection position of the static elimination device. 2. The printing system according to configuration 1. (Configuration 3) The display means is If the jam occurs before the static elimination device, a message prompting the user to check the static elimination settings is not displayed. 3. The printing system according to claim 1, wherein: (Configuration 4) The display means is It is checked whether the static eliminator is operating, and if the static eliminator is operating, a message is displayed prompting the user to check the static elimination settings. 4. The printing system according to any one of configurations 1 to 3. (Configuration 5) A printing apparatus that conveys a sheet to a static elimination device that performs a static elimination process on the sheet, A control means for interrupting a printing process when a sheet jam occurs; A printing apparatus comprising: a display unit that displays at least the location where the jam has occurred and a message that prompts a user to check a static elimination setting. (Configuration 6) A detection means for detecting a position where the jam has occurred is provided, The display means is A message is displayed to prompt confirmation of the static elimination setting according to the positional relationship between the position of the jam detected by the detection means and the connection position of the static elimination device. 6. The printing device according to configuration 5. (Configuration 7) The display means is If the jam occurs before the static elimination device, a message prompting the user to check the static elimination settings is not displayed. 7. The printing device according to configuration 5 or 6. (Configuration 8) The display means is It is checked whether the static eliminator is operating, and if the static eliminator is operating, a message is displayed prompting the user to check the static elimination settings. 8. The printing device according to any one of configurations 5 to 7. (Method 1) A method for controlling a printing system including a printing device that executes a printing process on a sheet and a static elimination device that executes a static elimination process on the printed sheet, comprising: When a sheet jam occurs, the printing process is interrupted, and the location of the jam and a message prompting the user to check the static elimination setting are displayed on the display means. A method for controlling a printing system comprising the steps of: (Method 2) A method for controlling a printing apparatus that conveys a sheet to a static elimination device that performs a static elimination process on the sheet, comprising: A control means for interrupting a printing process when a sheet jam occurs; The control method for a printing apparatus further comprises display means for displaying the location of the jam and a message for prompting a user to check a static elimination setting. (Program 1) A program for causing a computer to execute the printing system control method according to the first method. (Program 2) A program for causing a computer to execute the printing device control method according to Method 2.

[0028] (Other Examples) The present invention can also be realized by a process in which a program for implementing one or more of the functions of the above-described embodiments is supplied to a system or device via a network or a storage medium, and one or more processors in a computer of the system or device read and execute the program. The present invention can also be realized by a circuit (e.g., ASIC) that implements one or more of the functions. [Explanation of symbols]

[0029] S801 Printing process S802 Paper jam detection process S803 Print job stop processing S804 Paper jam error display processing

Claims

1. A printing system including a printing device that performs a printing process on a sheet and a static elimination device that performs a static elimination process on the printed sheet, a detection means for detecting a sheet jam; a control unit that interrupts the printing process being executed by the printing device based on the paper jam detected by the detection unit; a first display means for displaying a message indicating that at least the paper jam has occurred; a second display means for displaying a message prompting the user to check the settings of the discharge device when the location where the paper jam occurred is after the location where the discharge processing is performed.

2. The second display means 2. The printing system according to claim 1, wherein if the paper jam occurs at a position before the position where the static elimination process is performed, a message prompting confirmation of the static elimination device settings is not displayed.

3. The second display means The printing system according to claim 1 or 2, wherein the printing system checks whether the static eliminator is operating, and if the static eliminator is operating, displays a message prompting the user to check the static elimination settings.

4. The second display means is The printing system according to claim 1 or 2, characterized in that it checks whether the static elimination device is operating, and if the static elimination device is not operating, it does not display a message prompting confirmation of the static elimination settings.

5. 3. The printing system according to claim 1, further comprising a third display means for displaying the location of the paper jam by superimposing it on a graphic of the printing system.

6. A control method for a printing system including a printing device that performs a printing process on a sheet and a static elimination device that performs a static elimination process on the printed sheet, a detection step of detecting a sheet jam; a control step of interrupting the printing process being executed by the printing device based on the paper jam detected by the detection step; a first display step of displaying a message indicating that at least the paper jam has occurred; A control method for a printing system, characterized by having a second display step of displaying a message prompting confirmation of the settings of the discharge device when the location where the paper jam occurred is after the location where the discharge processing is performed.

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

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