Liquid dispensing system

Abstract

To make it possible to quickly provide head unit update information to a user even if a printer body maker is different from a head maker.SOLUTION: A liquid ejection system has: a head unit for discharging a liquid; a first output part which outputs specific information specific to the head unit; a first input part to which update information of the head unit associated with the specific information is inputted from an external server; and a notification part which performs notification to a user on the basis of the update information.SELECTED DRAWING: Figure 4

Description

Technical Field

[0005] ,

[0001] The present disclosure relates to a liquid ejection system.

Background Art

[0002] In a liquid ejection device such as an inkjet printer, generally, a driving pulse is supplied to a driving element such as a piezoelectric element, and a liquid such as ink is ejected from a liquid ejection head. For example, Patent Document 1 discloses a liquid ejection device including a plurality of heads.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In recent years, there is a business model in which a head manufacturer sells only heads to a printer manufacturer. Here, the head manufacturer may want to perform some kind of update on the head after shipping the head. For example, when a problem is found for the first time after the head is shipped, there is a desire to notify the users of the printers sold by the printer manufacturer as soon as possible. Also, when the program incorporated in the head is improved after the head is shipped, there is also a desire to update it at the user's side as soon as possible. However, in the distribution channel of the head, since a printer manufacturer or the like intervenes between the head manufacturer and the user, the head manufacturer cannot identify the user, and as a result, information regarding the above-mentioned update cannot be immediately transmitted to the user. ​​​​​To solve the above problems, one embodiment of the liquid dispensing system of the present disclosure includes a head unit for dispensing liquid, a first output unit for outputting unique information specific to the head unit to an external server, a first input unit for receiving update information of the head unit associated with the unique information from the external server, and a notification unit for notifying the user based on the update information. [Brief explanation of the drawing]

[0006] [Figure 1] This is a schematic diagram showing an example configuration of a liquid dispensing system according to the first embodiment. [Figure 2] This is a schematic diagram showing an example of the configuration of a liquid dispensing device used in the liquid dispensing system according to the first embodiment. [Figure 3] This is a cross-sectional view showing an example of the head chip configuration. [Figure 4] This is a schematic diagram showing an example of the configuration of the first processing apparatus used in the liquid discharge system according to the first embodiment. [Figure 5] This is a schematic diagram showing an example of the configuration of an external server used in the liquid dispensing system according to the first embodiment. [Figure 6] This is a flowchart showing the processing of the liquid dispensing system according to the first embodiment. [Figure 7] This figure shows example 1 of the arrangement of multiple liquid dispensing heads. [Figure 8] This figure shows an example of displaying a layout image, which is an example of layout example 1, in the display area. [Figure 9] This figure shows an example of displaying the property image and input image in the display area. [Figure 10] This figure shows example 2 of the arrangement of multiple liquid dispensing heads. [Figure 11] This figure shows an example of displaying a layout image illustrating layout example 2 in the display area. [Figure 12] This figure shows example 3 of the arrangement of multiple liquid dispensing heads. [Figure 13] This figure shows an example of displaying the layout image for layout example 3 in the display area. [Figure 14]This is a diagram showing an example of the arrangement of a plurality of liquid ejection heads. [Figure 15] This is a diagram showing an example in which an arrangement image showing Arrangement Example 4 is displayed in the display area. [Figure 16] This is a schematic diagram showing a configuration example of the first processing device in the second embodiment. [Figure 17] This is a schematic diagram showing a configuration example of the liquid ejection system according to the third embodiment. [Figure 18] This is a schematic diagram showing a configuration example of the liquid ejection device used in the liquid ejection system according to the third embodiment. [Figure 19] This is a flowchart showing the processing of the liquid ejection system according to the third embodiment. [Figure 20] This is a schematic diagram showing a configuration example of the liquid ejection system according to the fourth embodiment. [Figure 21] This is a flowchart showing the processing of the liquid ejection system according to the fourth embodiment. MODE FOR CARRYING OUT THE INVENTION

[0007] Hereinafter, preferred embodiments according to the present disclosure will be described with reference to the accompanying drawings. Note that the dimensions and scales of each part in the drawings are appropriately different from the actual ones, and there are also parts schematically shown for easy understanding. Also, the scope of the present disclosure is not limited to these embodiments unless there is a description specifically limiting the present disclosure in the following description.

[0008] 1. First Embodiment 1-1. Outline of the Liquid Ejection System FIG. 1 is a schematic diagram showing a configuration example of a liquid ejection system 10 according to the first embodiment. The liquid ejection system 10 is a system that performs printing by an inkjet method. In the example shown in FIG. 1, the liquid ejection system 10 includes liquid ejection devices 100_1 to 100_3, first processing devices 200_1 to 200_3, an external server 300, and a second processing device 400.

[0009] Here, each of the liquid ejection devices 100_1 to 100_3 is provided by a printer manufacturer that manufactures the printer main body described later. The liquid ejection devices 100_1 to 100_3 may be provided by the same manufacturer as each other, or may be provided by different manufacturers from each other. Each of the first processing devices 200_1 to 200_3 may use the user's belongings, or may be provided by the printer manufacturer. On the other hand, the head unit 110 incorporated in each of the liquid ejection devices 100_1 to 100_3 is provided by a head manufacturer that manufactures the head described later. The external server 300 only needs to be able to provide the services necessary for the user by the head manufacturer, and may be owned by the head manufacturer itself, or may be owned by a third party other than the head manufacturer. The second processing device 400 is owned by the head manufacturer itself. The second processing device 400 is maintained and managed by the head manufacturer.

[0010] For example, a user who uses the liquid ejection device 100_1 owns the liquid ejection device 100_1, the first processing device 200_1, and the head unit 110. On the other hand, although the user does not own the external server 300, the first processing device 200_1 owned by the user is communicably connected to the external server 300 via the communication network NW. Further, when the external server 300 is owned by a third party, the second processing device 400 is communicably connected to the external server 300 via the communication network NW (not shown).

[0011] Note that, for example, when the printer manufacturer itself that manufactures the printer main body using the head purchased from the head manufacturer uses the printer main body, the printer manufacturer is the user. Further, for example, when the printer manufacturer that manufactures the printer main body using the head purchased from the head manufacturer sells the printer main body to a third party and the third party uses the printer main body, the third party is the user.

[0012] Liquid dispensing device 100_1 is connected to the first processing unit 200_1 in a communicative manner. Liquid dispensing device 100_2 is connected to the first processing unit 200_2 in a communicative manner. Liquid dispensing device 100_3 is connected to the first processing unit 200_3 in a communicative manner. Thus, liquid dispensing devices 100_1 to 100_3 correspond to the first processing units 200_1 to 200_3 respectively and are connected to the first processing units 200_1 to 200_3 in a communicative manner. In the following, liquid dispensing devices 100_1 to 100_3 may be referred to simply as liquid dispensing device 100 without distinction. First processing units 200_1 to 200_3 may be referred to simply as first processing unit 200 without distinction.

[0013] In the example shown in Figure 1, the liquid discharge system 10 has three liquid discharge devices 100 and three first processing devices 200, but this number is not limited to three, and may be one, two, or four or more. In other words, the number of sets of liquid discharge devices 100 and first processing devices 200 is not limited to three, but may be one, two, or four or more.

[0014] The liquid ejection device 100 is a printer that prints an image based on the recorded data DP from the first processing device 200 onto a printing medium using an inkjet method. The recorded data DP is image data in a format that can be processed by the liquid ejection device 100. The printing medium can be any medium that the liquid ejection device 100 can print on, and is not particularly limited; for example, various types of paper, various types of cloth, or various types of film. The liquid ejection device 100 may be a serial printer or a line printer.

[0015] The liquid ejection device 100 has a plurality of head units 110. Each head unit 110 is a module that includes an inkjet head. Hereafter, the elements of the liquid ejection device 100 excluding the head units 110 may be referred to as the "printer body." Also, the head unit 110 or the liquid ejection head 110a described later may be simply referred to as the "head." The configuration of the liquid ejection device 100 will be described in detail later with reference to Figures 2 and 3.

[0016] The first processing unit 200 is a desktop or notebook computer that functions as a management device for managing the liquid dispensing device 100. In addition to this function, the first processing unit 200 also has a function for generating recording data DP and a function for controlling printing by the liquid dispensing device 100. The configuration of the first processing unit 200 will be described in detail later with reference to Figure 4.

[0017] The first processing unit 200 is connected to an external server 300 via a communication network NW, including the Internet. The first processing unit 200 has the function of outputting unique information D1 to the external server 300, the function of receiving update information D2 from the external server 300, the function of providing notifications based on the update information D2, and the function of displaying management information for the liquid ejection device 100. Unique information D1 is information unique to the head unit 110 or the liquid ejection head 110a, and is, for example, identification information indicating a unique number such as a serial number. Update information D2 is information related to updating the head unit 110 or the liquid ejection head 110a, and is, for example, information for notifying of defects, or information for updating programs such as firmware for ejecting ink. The first processing unit 200 also generates recorded data DP by performing various processes such as RIP (Raster image processor) processing or color conversion processing on image data in file formats such as PostScript, PDF (Portable Document Format), and XPS (XML Paper Specification).

[0018] The external server 300 is a computer that functions as a cloud server and has the function of receiving unique information D1 from the first processing unit 200 and outputting update information D2 corresponding to the unique information D1 to the first processing unit 200. The configuration of the external server 300 will be described in detail later with reference to Figure 5.

[0019] Furthermore, the external server 300 is connected to the second processing unit 400 for communication and appropriately sends and receives information necessary for providing update information D2 to the user. The second processing unit 400 is a computer that outputs information necessary for providing update information D2 to the user to the external server 300.

[0020] In the liquid ejection system 10 outlined above, the first processing unit 200 outputs unique information D1 to the external server 300, allowing the external server 300 to generate update information D2 based on the unique information D1. The first processing unit 200 then sends a notification based on the update information D2 received from the external server 300, providing the update information D2 to the user. In this way, even if the printer manufacturer is different from the head manufacturer, the update information D2 for the head unit 110 can be quickly provided to the user. The liquid ejection system 10 will be described in detail below.

[0021] 1-2. Configuration of the liquid dispensing device Figure 2 is a schematic diagram showing an example of the configuration of a liquid dispensing device 100 used in the liquid dispensing system 10 according to the first embodiment. As shown in Figure 2, the liquid dispensing device 100 has a plurality of head units 110, a moving mechanism 120, a communication device 130, a memory circuit 140, and a processing circuit 150.

[0022] The head unit 110 is an assembly comprising a head chip 111, a drive circuit 112, a power supply circuit 113, a drive signal generation circuit 114, a memory circuit 116, and a processing circuit 117. The memory circuit 116 is an example of a "memory unit".

[0023] In the example shown in Figure 2, the head unit 110 is divided into a liquid ejection head 110a including a head chip 111 and a drive circuit 112, and a control module 110b including a power supply circuit 113, a drive signal generation circuit 114, a memory circuit 116, and a processing circuit 117. Note that the head unit 110 is not limited to being divided into a liquid ejection head 110a and a control module 110b; for example, part or all of the control module 110b may be incorporated into the liquid ejection head 110a.

[0024] In Figure 2, for illustrative purposes, a single liquid discharge head 110a is typically shown; however, the head unit 110 has multiple liquid discharge heads 110a. Examples of arrangements of multiple liquid discharge heads 110a will be explained later based on Figures 7, 10, 12, and 14.

[0025] The print head 111 ejects ink toward the printing medium. Figure 2 shows representative examples of the multiple drive elements 111f that make up the print head 111. A detailed example of the print head 111 will be explained later based on Figure 3.

[0026] In the example shown in Figure 2, the head unit 110 has one head chip 111, but this number may be two or more. If the liquid ejection device 100 is serial type, one or more head chips 111 are arranged so that multiple nozzles are distributed over a portion of the width direction of the printing medium. If the liquid ejection device 100 is line type, two or more head chips 111 are arranged so that multiple nozzles are distributed over the entire width direction of the printing medium.

[0027] The drive circuit 112, under the control of the processing circuit 150, switches whether or not to supply the drive signal Com output from the drive signal generation circuit 114 as a drive pulse PD to each of the multiple drive elements 111f of the head chip 111. The drive circuit 112 includes, for example, a group of switches such as a transmission gate for this switching.

[0028] The power supply circuit 113 receives power from a commercial power source (not shown) and generates various predetermined potentials. The generated potentials are supplied to various parts of the liquid dispensing device 100 as appropriate. In the example shown in Figure 2, the power supply circuit 113 generates a power supply potential VHV and an offset potential VBS. The offset potential VBS is supplied to the head chip 111, etc. The power supply potential VHV is supplied to the drive signal generation circuit 114, etc.

[0029] The drive signal generation circuit 114 is a circuit that generates a drive signal Com for driving each drive element 111f of the head chip 111. Specifically, the drive signal generation circuit 114 includes, for example, a DA conversion circuit and an amplification circuit. In the drive signal generation circuit 114, the DA conversion circuit converts the waveform specification signal dCom from the processing circuit 150 (described later) from a digital signal to an analog signal, and the amplification circuit amplifies the analog signal using the power supply potential VHV from the power supply circuit 113 to generate the drive signal Com. Here, among the waveforms included in the drive signal Com, the signal of the waveform actually supplied to the drive element 111f is the drive pulse PD.

[0030] The memory circuit 116 is a device that stores various programs executed by the processing circuit 117 and various data processed by the processing circuit 117. The memory circuit 116 has, for example, a semiconductor memory.

[0031] The memory circuit 116 stores the program PG0 for ejecting ink. Program PG0 is, for example, a firmware program that executes the processing necessary for the various operations of the control module 110b described above. Program PG0 may be provided in the memory circuit 140 or memory circuit 240, which will be described later, instead of the memory circuit 116.

[0032] The processing circuit 117 is a device that has the function of controlling each part of the control module 110c and processing various data. The processing circuit 117 has one or more processors, such as a CPU. The processing circuit 117 may be configured together with the memory circuit 116, or it may be composed of hardware such as a DSP, ASIC, PLD, FPGA, etc.

[0033] The processing circuit 117 controls each part of the control module 110c by reading and executing the program PG0 from the memory circuit 116.

[0034] The moving mechanism 120 changes the relative position between the head unit 110 and the printing medium. More specifically, if the liquid ejection device 100 is serial type, the moving mechanism 120 includes a transport mechanism that transports the printing medium in a predetermined direction and a moving mechanism that repeatedly moves the head unit 110 along an axis perpendicular to the transport direction of the printing medium. If the liquid ejection device 100 is line type, the moving mechanism 120 includes a transport mechanism that transports the printing medium in a direction intersecting the longitudinal direction of the elongated head unit 110.

[0035] The communication device 130 is a circuit capable of communicating with the first processing unit 200. For example, the communication device 130 is an interface such as a wireless or wired LAN (Local Area Network) or USB (Universal Serial Bus). USB is a registered trademark. The communication device 130 may also be connected to other first processing units 200 via other networks such as the Internet. Furthermore, the communication device 130 may be integrated with the processing circuit 150.

[0036] The memory circuit 140 stores various programs executed by the processing circuit 150 and various data such as recording data DP processed by the processing circuit 150. The memory circuit 140 includes, for example, one or more volatile memories such as RAM (Random Access Memory) and one or more non-volatile memories such as ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), or PROM (Programmable ROM), or both, as semiconductor memory. The recording data DP is supplied, for example, from the first processing unit 200. The memory circuit 140 may be configured as part of the processing circuit 150.

[0037] The processing circuit 150 has the function of controlling the operation of each part of the liquid dispensing device 100 and the function of processing various data. The processing circuit 150 includes, for example, one or more processors such as CPUs (Central Processing Units). The processing circuit 150 may also include a programmable logic device such as an FPGA (field-programmable gate array) instead of a CPU, or in addition to a CPU.

[0038] The processing circuit 150 controls the operation of each part of the liquid dispensing device 100 by executing a program stored in the memory circuit 140. Here, the processing circuit 150 generates signals such as a control signal Sk, a print data signal SI, and a waveform specification signal dCom as signals to control the operation of each part of the liquid dispensing device 100.

[0039] The control signal Sk is a signal for controlling the drive of the moving mechanism 120 and is input to the moving mechanism 120. The print data signal SI is a signal for controlling the drive of the drive circuit 112 and is input to the drive circuit 112. Specifically, the print data signal SI specifies at predetermined intervals whether or not the drive circuit 112 will supply the drive signal Com from the drive signal generation circuit 114 to the drive element 111f as a drive pulse PD. This specification determines the amount of ink ejected from the head chip 111, etc. The waveform specification signal dCom is a digital signal for defining the waveform of the drive signal Com generated by the drive signal generation circuit 114 and is input to the drive signal generation circuit 114.

[0040] Figure 3 is a cross-sectional view showing an example of the configuration of the head tip 111. For the sake of clarity, the following explanation will use the X, Y, and Z axes, which intersect with each other, as appropriate. In the following, one direction along the X axis is the X1 direction, and the direction opposite to the X1 direction is the X2 direction. Similarly, opposite directions along the Y axis are the Y1 and Y2 directions. Opposite directions along the Z axis are the Z1 and Z2 directions. Note that the configuration of the head tip 111 is just one example and is not limited to the example shown in Figure 3.

[0041] As shown in Figure 3, the head tip 111 has a plurality of nozzles N arranged in the direction along the Y axis. These plurality of nozzles N are divided into a first row L1 and a second row L2, which are spaced apart from each other in the direction along the X axis. Each of the first row L1 and the second row L2 is a set of plurality of nozzles N arranged linearly in the direction along the Y axis.

[0042] The head tip 111 has a configuration that is approximately symmetrical with respect to the X-axis. However, the positions of the multiple nozzles N in the first row L1 and the multiple nozzles N in the second row L2 along the Y-axis may coincide or differ. Figure 3 illustrates a configuration in which the positions of the multiple nozzles N in the first row L1 and the multiple nozzles N in the second row L2 along the Y-axis coincide.

[0043] As shown in Figure 3, the head chip 111 includes a flow channel substrate 111a, a pressure chamber substrate 111b, a nozzle plate 111c, a vibration absorber 111d, a diaphragm 111e, a plurality of drive elements 111f, a protective plate 111g, a case 111h, and a wiring board 111i.

[0044] The flow channel substrate 111a and the pressure chamber substrate 111b are stacked in this order in the Z1 direction, forming a flow channel for supplying ink to multiple nozzles N. The region located in the Z1 direction from the stack consisting of the flow channel substrate 111a and the pressure chamber substrate 111b is where the diaphragm 111e, multiple drive elements 111f, protective plate 111g, case 111h, and wiring board 111i are installed. On the other hand, the region located in the Z2 direction from the said stack is where the nozzle plate 111c and vibration absorber 111d are installed. Each element of the head chip 111 is generally a plate-shaped member that is elongated in the Y direction, and is joined to each other, for example, by adhesive. The elements of the head chip 111 will be described in order below.

[0045] The nozzle plate 111c is a plate-shaped member provided with a plurality of nozzles N in the first row L1 and the second row L2, respectively. Each of the plurality of nozzles N is a through hole through which ink passes. Here, the surface of the nozzle plate 111c facing in the Z2 direction is the nozzle surface FN. The nozzle plate 111c is manufactured by processing a silicon single crystal substrate using semiconductor manufacturing technology, such as dry etching or wet etching. However, other known methods and materials may be used in the manufacture of the nozzle plate 111c as appropriate. In addition, the cross-sectional shape of the nozzle is typically circular, but is not limited to this, and may be non-circular, such as polygonal or elliptical.

[0046] The flow channel substrate 111a is provided with a space R1, multiple supply channels Ra, and multiple communication channels Na for each of the first row L1 and second row L2. Space R1 is a long opening extending in the direction along the Y axis when viewed in a plan view along the Z axis. Each of the supply channels Ra and communication channels Na is a through hole formed for each nozzle N. Each supply channel Ra communicates with space R1.

[0047] The pressure chamber substrate 111b is a plate-shaped member in which a plurality of pressure chambers C, referred to as cavities, are provided for each of the first row L1 and the second row L2. The plurality of pressure chambers C are arranged in the direction along the Y axis. Each pressure chamber C is formed for each nozzle N and is a long space extending in the direction along the X axis in a plan view. The flow channel substrate 111a and the pressure chamber substrate 111b are manufactured, for example, by processing a silicon single crystal substrate using semiconductor manufacturing technology, similar to the nozzle plate 111c described above. However, other known methods and materials may be used as appropriate for the manufacture of the flow channel substrate 111a and the pressure chamber substrate 111b.

[0048] The pressure chamber C is the space located between the flow channel substrate 111a and the diaphragm 111e. Multiple pressure chambers C are arranged in the direction along the Y axis for each of the first row L1 and the second row L2. The pressure chamber C also communicates with the communication channel Na and the supply channel Ra, respectively. Therefore, the pressure chamber C communicates with the nozzle N via the communication channel Na and with the space R1 via the supply channel Ra.

[0049] A diaphragm 111e is positioned on the surface of the pressure chamber substrate 111b facing the Z1 direction. The diaphragm 111e is an elastically vibrating plate-shaped member. The diaphragm 111e has, for example, a first layer and a second layer, which are stacked in this order in the Z1 direction. The first layer is, for example, an elastic film composed of silicon oxide (SiO2). This elastic film is formed, for example, by thermal oxidation of one surface of a silicon single crystal substrate. The second layer is, for example, an insulating film composed of zirconium oxide (ZrO2). This insulating film is formed, for example, by forming a zirconium layer by sputtering and then thermally oxidizing the layer. Note that the diaphragm 111e is not limited to the stacked configuration of the first and second layers described above, and may be composed of a single layer or three or more layers.

[0050] On the surface of the diaphragm 111e facing the Z1 direction, multiple drive elements 111f corresponding to the nozzles N are arranged for each of the first row L1 and second row L2. Each drive element 111f is a passive element that deforms in response to the supply of a drive signal. Each drive element 111f is elongated in the direction along the X axis in a plan view. The multiple drive elements 111f are arranged in the direction along the Y axis to correspond to the multiple pressure chambers C. The drive elements 111f overlap the pressure chambers C in a plan view.

[0051] Each driving element 111f is a piezoelectric element, and although not shown in the figure, it has a first electrode, a piezoelectric layer, and a second electrode, which are stacked in this order in the Z1 direction. One of the first and second electrodes is an individual electrode that is spaced apart from each other for each driving element 111f, and a driving pulse PD is supplied to this electrode. The other electrode is a common strip-shaped electrode that extends along the Y axis so as to be continuous across multiple driving elements 111f, and an offset potential VBS is supplied to this electrode. Examples of metallic materials for these electrodes include platinum (Pt), aluminum (Al), nickel (Ni), gold (Au), and copper (Cu), and one of these can be used alone or two or more can be used in combination in the form of an alloy or stacking. The piezoelectric layer is made of a piezoelectric material such as lead zirconate titanate (Pb(Zr,Ti)O3) and, for example, is a strip-shaped layer extending along the Y-axis so as to be continuous across multiple drive elements 111f. However, the piezoelectric layer may be a single unit across multiple drive elements 111f. In this case, the piezoelectric layer has through holes extending along the X-axis in regions corresponding to the gaps between adjacent pressure chambers C in a plan view. When the diaphragm 111e vibrates in conjunction with the deformation of the drive elements 111f, the pressure in the pressure chamber C fluctuates, causing ink to be ejected from the nozzle N.

[0052] The protective plate 111g is a plate-shaped member installed on the surface of the diaphragm 111e facing the Z1 direction, protecting the multiple drive elements 111f and reinforcing the mechanical strength of the diaphragm 111e. Here, the multiple drive elements 111f are housed between the protective plate 111g and the diaphragm 111e. The protective plate 111g is made of, for example, a resin material.

[0053] Case 111h is a component for storing ink supplied to multiple pressure chambers C. Case 111h is made of, for example, a resin material. Each of the first row L1 and the second row L2 of Case 111h is provided with a space R2. Space R2 is a space that communicates with the aforementioned space R1 and functions together with space R1 as a reservoir R for storing ink supplied to the multiple pressure chambers C. Case 111h is provided with an inlet IH for supplying ink to each reservoir R. The ink in each reservoir R is supplied to the pressure chamber C via each supply channel Ra.

[0054] The vibration absorber 111d, also called the compliance substrate, is a flexible resin film that forms the wall surface of the reservoir R and absorbs pressure fluctuations of the ink in the reservoir R. The vibration absorber 111d may also be a thin, flexible metal plate. The surface of the vibration absorber 111d facing the Z1 direction is joined to the flow channel substrate 111a by adhesive or the like.

[0055] The wiring board 111i is mounted on the surface of the diaphragm 111e facing the Z1 direction and is a mounting component for electrically connecting the head chip 111, the drive circuit 112, and the control module 110b, etc. The wiring board 111i is a flexible wiring board such as COF (Chip On Film), FPC (Flexible Printed Circuit), or FFC (Flexible Flat Cable). In this embodiment, the aforementioned drive circuit 112 is mounted on the wiring board 111i.

[0056] 1-3. Configuration of the first processing unit Figure 4 is a schematic diagram showing an example configuration of the first processing unit 200 used in the liquid discharge system 10 according to the first embodiment. As shown in Figure 4, the first processing unit 200 includes a display device 210, an input device 220, a communication device 230, a storage circuit 240, and a processing circuit 250. These are connected to each other in a way that allows them to communicate with one another.

[0057] The display device 210 displays various images under the control of the processing circuit 250. Here, the display device 210 has a display area 211 composed of a display panel such as a liquid crystal display panel or an organic EL (electro-luminescence) display panel. The display device 210 may be provided outside the first processing device 200. The display device 210 may also be a component of the liquid dispensing device 100.

[0058] The input device 220 is a device that accepts operations from the user. For example, the input device 220 has a pointing device such as a touchpad, touch panel, or mouse. If the input device 220 has a touch panel, it may also function as the display device 210. The input device 220 may be located outside the first processing device 200. The input device 220 may also be a component of the liquid dispensing device 100. Furthermore, the input device 220 may include an imaging device having a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary MOS) image sensor.

[0059] The communication device 230 is a circuit capable of communicating with both the liquid dispensing device 100 and the external server 300. For example, the communication device 230 is a wireless or wired interface such as LAN or USB. The communication device 230 transmits recorded data DP to the liquid dispensing device 100 through communication with the liquid dispensing device 100. The communication device 230 also transmits unique information D1 and receives update information D2 through communication with the external server 300. In other words, the communication device 230 functions as a first connection unit 231 that is connected to the external server 300 in a communicative manner. The communication device 230 may also be integrated with the processing circuit 250.

[0060] The memory circuit 240 is a device that stores various programs executed by the processing circuit 250 and various data processed by the processing circuit 250. The memory circuit 240 may be, for example, a hard disk drive or a semiconductor memory. Note that part or all of the memory circuit 240 may be provided in an external storage device or server, etc., of the first processing unit 200.

[0061] The memory circuit 240 of this embodiment stores program PG1, unique information D1, update information D2, placement information D3, and recorded data DP. Note that some or all of program PG1, unique information D1, update information D2, and placement information D3 may be stored in an external storage device or server of the first processing unit 200. Furthermore, in the following, program PG1, unique information D1, and update information D2 may be collectively referred to as information DG.

[0062] Program PG1 is a management program for managing the liquid dispensing device 100, and it enables the computer to implement various functions necessary for said management.

[0063] Unique information D1 is information specific to the head unit 110. More specifically, unique information D1 can be any information that can identify the type of head unit 110, such as identification information that indicates a unique number such as a serial number specific to the head unit 110 or the liquid discharge head 110a.

[0064] In addition, other information relating to the head unit 110 may be added to the unique information D1. Such other information may include, for example, information regarding the type of liquid used for ejection by the head unit 110, and information regarding the temperature of the head unit 110. Information regarding the type of liquid used for ejection by the head unit 110 may include, for example, information regarding the ink part number, viscosity, residual vibration, or ejection speed. Information regarding the temperature of the head unit 110 may include, for example, information regarding the temperature detected by a temperature sensor provided around the head unit 110.

[0065] Update information D2 is information regarding the update of the head unit 110. As mentioned above, update information D2 is provided from the external server 300 to the first processing unit 200. In the example shown in Figure 4, update information D2 includes deficiency notification information D2a and update information D2b.

[0066] Defect notification information D2a is information used to notify the user of defects in the head unit 110. More specifically, defect notification information D2a is information indicating, for example, the existence of a defect discovered after manufacturing in a head unit 110 with a specific serial number (ID).

[0067] Update information D2b contains information such as a program for updating the program PG0 of the aforementioned head unit 110.

[0068] The arrangement information D3 is information regarding the arrangement of multiple liquid ejection heads 110a. More specifically, the arrangement information D3 is information indicating, for example, the arrangement of multiple liquid ejection heads 110a for each ink color.

[0069] The processing circuit 250 is a device that has the function of controlling each part of the first processing unit 200 and the function of processing various data. The processing circuit 250 has a processor such as a CPU (Central Processing Unit). The processing circuit 250 may consist of a single processor or multiple processors. Furthermore, some or all of the functions of the processing circuit 250 may be implemented by hardware such as a DSP (Digital Signal Processor), ASIC (Application Specific Integrated Circuit), PLD (Programmable Logic Device), or FPGA (Field Programmable Gate Array).

[0070] The processing circuit 250 reads and executes the program PG1 from the memory circuit 240, and functions as an acquisition unit 251, a first output unit 252, a first input unit 253, a notification unit 254, a display control unit 255, a first receiving unit 256, and a second receiving unit 257.

[0071] The acquisition unit 251 acquires unique information D1. In this embodiment, the acquisition unit 251 acquires unique information D1 based on the reception result at the first reception unit 256. If the memory circuit 116 of the head unit 110 stores identification information indicating a unique number such as a serial number, the acquisition unit 251 may acquire unique information D1 by reading said identification information.

[0072] The first output unit 252 outputs unique information D1 via the first connection unit 231. For example, the first output unit 252 outputs unique information D1 to the external server 300 via the first connection unit 231, triggered by user instructions using the input device 220. The first output unit 252 may also output other information, such as placement information D3, to the external server 300 along with the unique information D1.

[0073] Update information D2 is input to the first input unit 253 via the first connection unit 231. For example, update information D2 is input to the first input unit 253 via the first connection unit 231 from an external server 300, triggered by user instructions using the input device 220.

[0074] The notification unit 254 notifies the user based on the update information D2. In this embodiment, the notification unit 254 uses the display device 210 to make the notification. More specifically, the notification unit 254 displays the information for the notification in the display area 211 of the display device 210. A specific example of the notification will be described later with reference to Figure 9.

[0075] The display control unit 255 displays an arrangement image GA showing the arrangement of multiple liquid discharge heads 110a in the display area 211. In this embodiment, the display control unit 255 displays the arrangement image GA in the display area 211 based on the arrangement information D3. The display control unit 255 also displays an appropriate image, such as an error image B2, in the display area 211 based on the reception result of the first reception unit 256. Specific examples of the arrangement image GA will be described later with reference to Figures 7, 8 and 10 to 15.

[0076] The first reception unit 256 receives user input regarding the layout image GA. Based on this reception result, the display control unit 255 controls the display of the display area 211. The second reception unit 257 receives user input regarding the layout information D3. Based on this reception result, the layout information D3 is generated. Details of these reception units will be explained later with reference to Figure 8.

[0077] 1-3. Server Configuration Figure 5 is a schematic diagram showing an example configuration of an external server 300 used in a liquid dispensing system 10 according to the first embodiment. As shown in Figure 5, the external server 300 includes a display device 310, an input device 320, a communication device 330, a storage circuit 340, and a processing circuit 350. These are connected to each other in a way that allows them to communicate with one another.

[0078] The display device 310 is a device that displays various images under the control of the processing circuit 350, and is configured in the same way as the display device 210 described above. The input device 320 is a device that accepts operations from the user, and is configured in the same way as the input device 220 described above. The communication device 330 is a circuit that can communicate with each of the first processing units 200, and is configured in the same way as the communication device 230 described above. Note that the communication device 330 may be integrated with the processing circuit 350.

[0079] Here, the communication device 330 receives unique information D1 and transmits update information D2 through communication with the first processing unit 200. In other words, the communication device 330 functions as a second connection unit 331 that is communicably connected to the first connection unit 231. The communication device 330 also transmits unique information D1 through communication with the second processing unit 400 as needed.

[0080] The memory circuit 340 is a device that stores various programs executed by the processing circuit 350 and various data processed by the processing circuit 350, and is configured in the same way as the memory circuit 240 described above. The memory circuit 340 stores the program PG2, unique information D1, update information D2, and correspondence information D4. When the first processing unit 200 transmits the placement information D3 along with the unique information D1, the memory circuit 340 also stores the placement information D3.

[0081] Program PG2 is a program that enables the computer to implement various functions necessary for generating update information D2 corresponding to unique information D1. Correspondence information D4 is information regarding the correspondence between unique information D1 and update information D2. The format of correspondence information D4 is not particularly limited and is arbitrary, but for example, it is a lookup table showing the correspondence between unique information D1 and update information D2. Furthermore, "generation of update information D2" includes cases where one or more update information D2s are selected or extracted from multiple update information D2s.

[0082] For example, after a head manufacturer has manufactured and shipped a head unit 110, a defect may be found in the head unit 110, or the program PG0 installed in the head unit 110 may need to be updated. In this case, the head manufacturer wants to inform the user of such defect notifications or updates, but if a printer manufacturer is involved in the sales channel, the head manufacturer may not be able to identify the user. Therefore, the head manufacturer stores a correspondence relationship between update information D2 and the head unit's unique information D1 corresponding to the update information D2 in the external server 300 as correspondence information D4. Then, when the unique information D1 is input from the user's first processing unit 200 to the external server 300, the external server 300 determines whether the unique information D1 is included in the correspondence information D4. If the unique information D1 is included in the correspondence information D4, the external server 300 outputs the update information D2 corresponding to the unique information D1 in the correspondence information D4 to the first processing unit 200. This makes it possible to inform users of update information D2 corresponding to unique information D1, even if the head manufacturer cannot identify the user.

[0083] The processing circuit 350 is a device that has the function of controlling various parts of the external server 300 and processing various data, and is configured in the same way as the processing circuit 250 described above. The processing circuit 350 functions as an output unit 351, an input unit 352, and an arithmetic unit 353 by reading and executing the program PG2 from the storage circuit 340.

[0084] The output unit 351 outputs the update information D2 via the second connection unit 331. For example, the output unit 351 outputs the update information D2 to the first processing unit 200 via the second connection unit 331, triggered by user instructions using the input device 220.

[0085] Unique information D1 is input to the input unit 352 via the second connection unit 331. For example, unique information D1 is input to the input unit 352 via the second connection unit 331 from the first processing unit 200, triggered by user instructions using the input device 220.

[0086] The calculation unit 353 performs calculations to generate update information D2 corresponding to the unique information D1. In this embodiment, the calculation unit 353 uses the unique information D1 and the corresponding information D4 to perform calculations to generate update information D2.

[0087] 1-4. Processing of the liquid discharge system Figure 6 is a flowchart showing the processing of the liquid dispensing system 10 according to the first embodiment. In the liquid dispensing system 10, first, as shown in Figure 6, in step S101, the first processing device 200 acquires unique information D1. This acquisition is performed by the acquisition unit 251 described above. Here, the acquisition unit 251 displays the input image GD, described later, on the display device 210 as an image for the GUI (Graphical User Interface) for inputting the information necessary to acquire the unique information D1. The first receiving unit 256 accepts user operations on the input image GD. Based on the reception result from the first receiving unit 256, the acquisition unit 251 acquires the unique information D1.

[0088] Then, in step S102, the first processing unit 200 outputs unique information D1 to the external server 300.

[0089] Specifically, in step S102, the first output unit 252 outputs the unique information D1 via the first connection unit 231, triggered by the acquisition of the unique information D1. Note that the timing of outputting the unique information D1 to the first connection unit 231 is not limited to the time of acquisition of the unique information D1. For example, if the first reception unit 256 receives input using the GUI input image GD described later, the first output unit 252 may send authentication information such as user account information and password to the external server 300. If the external server 300 successfully authenticates using the authentication information, the external server 300 may send output permission information to the first processing unit 200. Once the first processing unit 200 receives the output permission information, it may output the unique information D1 to the external server 300.

[0090] Next, in step S103, the external server 300 inputs unique information D1. This input is performed by the input unit 352. Then, in step S104, the external server 300 generates update information D2 based on the unique information D1. This generation is performed by the calculation unit 353. The external server 300 may query the unique information D1 against predetermined query information and, depending on the result, may cancel the processing from step S104 onward. In this case, the output unit 351 may output information indicating that it will not provide update information D2.

[0091] Subsequently, in step S105, the external server 300 outputs update information D2 to the first processing unit 200. This output is performed by the output unit 351.

[0092] Next, in step S106, the first processing unit 200 inputs update information D2. Specifically, in step S106, the first input unit 253 receives update information D2 from the external server 300 via the first connection unit 231. The first input unit 253 may notify the user, using a display device 210 or the like, whether or not to input update information D2 from the external server 300, and may only input update information D2 from the external server 300 if the user inputs an instruction to permit input using an input device 220 or the like.

[0093] Then, in step S107, the first processing unit 200 issues a notification based on the update information D2. This notification is made by the notification unit 254. Specifically, the notification unit 254 displays area RC3 based on the update information D2 in the display area 211.

[0094] 1-5. Display in the display area When the aforementioned program PG1 is executed on the first processing unit 200, various information necessary for managing the liquid dispensing device 100 is displayed in the display area 211 of the display device 210. The display in the display area 211 will be explained below using arrangement examples 1 to 4 of the multiple liquid dispensing heads 110a as examples. Note that arrangement examples 1 to 4 are merely examples for the convenience of explaining the arrangement of the multiple liquid dispensing heads 110a and are not limited thereto.

[0095] (Layout example 1) Figure 7 shows an example of arrangement 1 of multiple liquid ejection heads 110a. In Figure 7, arrangement 1 shows the arrangement of four liquid ejection heads 110a_C1, 110a_C2, 110a_C3, and 110a_C4. Each of the liquid ejection heads 110a, 110a_C2, 110a_C3, and 110a_C4 is a liquid ejection head 110a that ejects cyan ink.

[0096] In arrangement example 1, as shown in Figure 7, the liquid discharge heads 110a_C1, 110a_C2, 110a_C3, and 110a_C4 are arranged in this order along the same straight line in the Y2 direction.

[0097] Figure 8 shows an example where the layout image GA, representing layout example 1, is displayed in the display area 211. In the example shown in Figure 8, in addition to the layout image GA, the reception image GB is also displayed in the display area 211.

[0098] The reception image GB is a GUI image for receiving input of information necessary for generating the layout information D3 by operating the input device 220 by the user. The second reception unit 257 generates the layout information D3 using the information input using the reception image GB.

[0099] The reception image GB includes areas RB1, RB2, and RB3. Area RB1 is for inputting the number of rows of multiple liquid ejection heads 110a for each ink color. Area RB2 is for inputting the number of rows of multiple liquid ejection heads 110a for each ink color. Area RB3 is for inputting whether or not there is an offset. The offset will be explained later based on Figure 10.

[0100] In the example shown in Figure 8, areas RB1, RB2, and RB3 are each drop-down lists. Figure 8 shows areas RB1, RB2, and RB3 with information indicating arrangement example 1 entered. Here, in area RB1, "1" is entered to indicate that there is one column of liquid ejection heads 110a for cyan ink, and "Null" is entered to indicate that there are no liquid ejection heads 110a for other colors of ink. In area RB2, "4" is entered to indicate that there are four rows of liquid ejection heads 110a for cyan ink, and "Null" is entered to indicate that there are no liquid ejection heads 110a for other colors of ink. In area RB3, "Null" is entered to indicate that there is no offset.

[0101] Furthermore, areas RB1, RB2, and RB3 only need to allow input of the necessary information, and are not limited to using dropdown lists; other known widgets can be applied.

[0102] The layout image GA includes multiple head display areas B1. These multiple head display areas B1 are separated by ink color.

[0103] Specifically, the multiple head display area B1 is divided into a cyan head area RA_C that shows the arrangement of multiple liquid ejection heads 110a that use cyan ink, a magenta head area RA_M that shows the arrangement of multiple liquid ejection heads 110a that use magenta ink, a yellow head area RA_Y that shows the arrangement of multiple liquid ejection heads 110a that use yellow ink, and a black head area RA_B that shows the arrangement of multiple liquid ejection heads 110a that use black ink.

[0104] In the example shown in Figure 8, each of the cyan head regions RA_C, RA_M, RA_Y, and RA_B consists of eight head display areas B1 arranged in a 4x2 grid. Note that the number of rows and columns of the head display areas B1 that make up each of the cyan head regions RA_C, RA_M, RA_Y, and RA_B are not limited to the example shown in Figure 8 and can be arbitrary.

[0105] Multiple head display areas B1 display different patterns depending on the arrangement of multiple liquid discharge heads 110a. Here, the display pattern of each of the multiple head display areas B1 can be changed by color, presence or absence of text, etc. In Figure 8, the cyan head area RA_C is displayed in the pattern shown in arrangement example 1. In the example shown in Figure 8, of the eight head display areas B1 that make up the cyan head area RA_C, four head display areas B1 corresponding to arrangement example 1 are displayed in a different pattern from the other four head display areas B1. More specifically, of the eight head display areas B1 that make up the cyan head area RA_C, the letters "C1", "C2", "C3", and "C4" are displayed in the head display areas B1 corresponding to the arrangement of the liquid discharge heads 110a.

[0106] Here, multiple head display areas B1 corresponding to the liquid discharge heads 110a_C1, 110a_C2, 110a_C3, and 110a_C4, which are aligned in the Y1 direction, are displayed in the direction DR1, which corresponds to the Y1 direction. In this way, by varying the position and number of head display areas B1 that indicate the presence of liquid discharge heads 110a according to the arrangement of the liquid discharge heads 110a, the arrangement of multiple liquid discharge heads 110a is displayed in the arrangement image GA.

[0107] In this embodiment, among the eight head display areas B1 that constitute the cyan head area RA_C, the head display area B1 corresponding to the liquid discharge head 110a_C2 constitutes an error image B2 indicating an error state. In the example shown in Figure 8, the error image B2 is displayed in a different color from the other head display areas B1. The display manner of the error image B2, such as color and whether or not it blinks, may vary depending on the contents of the property image GC. Note that the error image B2 may be displayed in a separate area from the placement image GA.

[0108] The head display area B1 can receive user input from the head display area B1 that indicates the presence of the liquid discharge head 110a among multiple head display areas B1. This input is received by the first reception unit 256. When the first reception unit 256 receives this input, the display control unit 255 displays the property information of the target liquid discharge head 110a in the display area 211. An example of this display is explained with reference to Figure 9.

[0109] Figure 9 shows an example of displaying the property image GC and input image GD in the display area 211. In Figure 9, the display area 211 is shown as an example when an operation is received on the head display area B1 corresponding to the liquid discharge head 110a_C2, among the multiple head display areas B1.

[0110] The input image GD is a GUI image for inputting information necessary to obtain unique information D1. In the example shown in Figure 9, the input image GD has a button and a text box. Identification information, such as the serial number of the liquid discharge head 110a, is entered into the text box. The button is operated after the identification information is entered into the text box. As a result, the first processing unit 200 requests various information related to unique information D1 based on the identification information from the external server 300. The external server 300 then transmits this information to the first processing unit 200. Having obtained this information, the first processing unit 200 displays it as a property image GC. The property image GC includes areas RC1, RC2, and RC3.

[0111] Area RC1 displays information regarding the expiration date of the liquid dispensing head 110a. In the example shown in Figure 9, area RC1 displays the manufacturing date, start date of use, cumulative number of uses, and estimated expiration date of the liquid dispensing head 110a that is the target of the operation on the head display area B1. The expiration date is determined by the external server 300 based, for example, on one or both of the number of days elapsed since the start date of use and the cumulative number of uses, along with unique information D1. Here, if a certain period of time has elapsed since the manufacturing date of the head, the external server 300 may determine that the expiration date has been reached regardless of the number of days elapsed since the start date of use and the cumulative number of uses. Note that the items displayed in area RC1 are not limited to the example shown in Figure 9, as long as they can notify the user of the expiration date of the liquid dispensing head 110a.

[0112] Area RC2 shows the temperature state, energization state, and flow path state of the liquid discharge head 110a, which is the target of the operation in head display area B1.

[0113] Area RC3 displays notifications from the head manufacturer based on update information D2. For example, if there is a defect in the liquid ejection head 110a targeted for operation on head display area B1, this will be displayed in area RC3. If there is a defect in the liquid ejection head 110a targeted for operation on head display area B1, the user will be notified that the use of the liquid ejection head 110a targeted for operation on head display area B1 is not recommended, for example, by displaying "notify" in area RC3. In this case, the head manufacturer or printer manufacturer may provide the user with any further necessary information in an appropriate manner.

[0114] (Layout example 2) Figure 10 shows an example of arrangement 2 of multiple liquid ejection heads. In Figure 10, arrangement example 2 shows the arrangement of four liquid ejection heads 110a_C1, 110a_C2, 110a_C3, and 110a_C4 that eject cyan ink.

[0115] In arrangement example 2, as shown in Figure 10, four liquid discharge heads 110a_C1, 110a_C2, 110a_C3, and 110a_C4 are arranged in a staggered pattern. Here, the four liquid discharge heads 110a_C1, 110a_C2, 110a_C3, and 110a_C4 are aligned in the Y2 direction in this order. However, liquid discharge heads 110a_C1 and 110a_C3 are aligned along the same straight line along the Y axis so that their positions along the X axis coincide. Liquid discharge heads 110a_C2 and 110a_C4 are located in the X1 direction more than liquid discharge heads 110a_C1 and 110a_C3, and are aligned along the same straight line along the Y axis so that their positions along the X axis coincide.

[0116] Furthermore, the ends of liquid discharge heads 110a_C2 and 110a_C4 in the X2 direction are positioned further in the X1 direction than the ends of liquid discharge heads 110a_C1 and 110a_C3 in the X1 direction. In addition, the end of liquid discharge head 110a_C2 in the Y1 direction is positioned further in the Y1 direction than the end of liquid discharge head 110a_C1 in the Y2 direction. Similarly, the end of liquid discharge head 110a_C3 in the Y1 direction is positioned further in the Y1 direction than the end of liquid discharge head 110a_C2 in the Y2 direction. The end of liquid discharge head 110a_C4 in the Y1 direction is positioned further in the Y1 direction than the end of liquid discharge head 110a_C3 in the Y2 direction. This arrangement, where the ends of multiple liquid discharge heads 110a, which are offset from each other along the X-axis, overlap along the Y-axis, is called "offset".

[0117] Figure 11 shows an example of displaying the layout image GA, which represents layout example 2, in the display area 211. The layout image GA and reception image GB shown in Figure 11 are the same as the layout image GA and reception image GB shown in Figure 8, except that they are applied to layout example 2.

[0118] Figure 11 shows the state in which information indicating arrangement example 2 has been entered into areas RB1, RB2, and RB3. Here, in area RB1, "1" is entered to indicate that there is one row of liquid ejection heads 110a for cyan ink, and "Null" is entered to indicate that there are no liquid ejection heads 110a for other colors of ink. In area RB2, "4" is entered to indicate that there are four rows of liquid ejection heads 110a for cyan ink, and "Null" is entered to indicate that there are no liquid ejection heads 110a for other colors of ink. In area RB3, "Offset" is entered to indicate that an offset exists.

[0119] In Figure 11, the cyan head region RA_C is displayed in the configuration shown in arrangement example 2. In the example shown in Figure 11, of the eight head display regions B1 that make up the cyan head region RA_C, four head display regions B1 corresponding to arrangement example 2 are displayed in a different manner from the other four head display regions B1. More specifically, of the eight head display regions B1 that make up the cyan head region RA_C, the letters "C1", "C2", "C3", and "C4" are displayed in the head display regions B1 corresponding to the arrangement of the liquid discharge head 110a.

[0120] Here, multiple head display areas B1 corresponding to liquid discharge heads 110a_C1 and 110a_C3, which are aligned in the Y1 direction, are displayed side by side in the direction DR1, which corresponds to the Y1 direction. Similarly, multiple head display areas B1 corresponding to liquid discharge heads 110a_C2 and 110a_C4, which are aligned in the Y1 direction, are displayed side by side in the direction DR1, which corresponds to the Y1 direction. In addition, two head display areas B1 corresponding to two liquid discharge heads 110a, which are adjacent in the Y1 direction and offset from each other in the X1 direction, are displayed side by side in the direction DR1, which corresponds to the Y1 direction, and offset from each other in the direction DR2, which corresponds to the X1 direction.

[0121] (Layout example 3) Figure 12 shows an example of arrangement 3 of multiple liquid ejection heads 110a. In Figure 12, arrangement example 3 shows the arrangement of four liquid ejection heads 110a_C1, 110a_C2, 110a_C3, and 110a_C4 that eject cyan ink.

[0122] In arrangement example 3, as shown in Figure 12, four liquid discharge heads 110a_C1, 110a_C2, 110a_C3, and 110a_C4 are arranged in a matrix. Here, liquid discharge heads 110a_C1 and 110a_C2 are aligned along the same straight line along the Y-axis so that their positions along the X-axis coincide. Liquid discharge heads 110a_C3 and 110a_C4 are positioned further in the X1 direction than liquid discharge heads 110a_C1 and 110a_C2, and are aligned along the same straight line along the Y-axis so that their positions along the X-axis coincide.

[0123] Furthermore, the liquid discharge heads 110a_C1 and 110a_C3 are arranged on the same straight line along the X-axis so that their ends are aligned with each other in the direction along the Y-axis. Similarly, the liquid discharge heads 110a_C2 and 110a_C4 are arranged on the same straight line along the X-axis so that their ends are aligned with each other in the direction along the Y-axis.

[0124] Figure 13 shows an example of displaying the layout image GA, which represents layout example 3, in the display area 211. The layout image GA and reception image GB shown in Figure 13 are the same as the layout image GA and reception image GB shown in Figure 8, except that they are applied to layout example 3.

[0125] Figure 13 shows the state in which information indicating arrangement example 3 has been entered into areas RB1, RB2, and RB3. Here, in area RB1, "2" is entered to indicate that there are two rows of liquid ejection heads 110a for cyan ink, and "Null" is entered to indicate that there are no liquid ejection heads 110a for other color inks. In area RB2, "2" is entered to indicate that there are two rows of liquid ejection heads 110a for cyan ink, and "Null" is entered to indicate that there are no liquid ejection heads 110a for other color inks. In area RB3, "Null" is entered to indicate that there is no offset.

[0126] In Figure 13, the cyan head region RA_C is displayed in the configuration shown in arrangement example 3. In the example shown in Figure 13, of the eight head display regions B1 that make up the cyan head region RA_C, four head display regions B1 corresponding to arrangement example 3 are displayed in a different manner from the other four head display regions B1. More specifically, of the eight head display regions B1 that make up the cyan head region RA_C, the letters "C1", "C2", "C3", and "C4" are displayed in the head display regions B1 corresponding to the arrangement of the liquid discharge head 110a.

[0127] Here, multiple head display areas B1 corresponding to liquid discharge heads 110a_C1 and 110a_C2, which are aligned in the Y1 direction, are displayed in the direction DR1, which corresponds to the Y1 direction. Similarly, multiple head display areas B1 corresponding to liquid discharge heads 110a_C3 and 110a_C4, which are aligned in the Y1 direction, are displayed in the direction DR1, which corresponds to the Y1 direction. Also, multiple head display areas B1 corresponding to liquid discharge heads 110a_C1 and 110a_C3, which are aligned in the X1 direction, are displayed in the direction DR2, which corresponds to the X1 direction. Similarly, multiple head display areas B1 corresponding to liquid discharge heads 110a_C2 and 110a_C4, which are aligned in the X1 direction, are displayed in the direction DR2, which corresponds to the X1 direction.

[0128] (Layout example 4) Figure 14 shows arrangement example 4 of multiple liquid ejection heads 110a. In Figure 14, arrangement example 4 shows arrangements of three liquid ejection heads 110a_C1, 110a_C2, and 110a_C3, three liquid ejection heads 110a_M1, 110a_M2, and 110a_M3, and three liquid ejection heads 110a_Y1, 110a_Y2, and 110a_Y3. Each of the three liquid ejection heads 110a_C1, 110a_C2, and 110a_C3 is a liquid ejection head 110a that ejects cyan ink. Each of the three liquid ejection heads 110a_M1, 110a_M2, and 110a_M3 is a liquid ejection head 110a that ejects magenta ink. Each of the three liquid ejection heads 110a_Y1, 110a_Y2, and 110a_Y3 is a liquid ejection head 110a that ejects yellow ink.

[0129] In arrangement example 4, as shown in Figure 14, three liquid discharge heads 110a_C1, 110a_C2, and 110a_C3 are arranged in a staggered pattern, three liquid discharge heads 110a_M1, 110a_M2, and 110a_M3 are arranged in a staggered pattern, and three liquid discharge heads 110a_Y1, 110a_Y2, and 110a_Y3 are arranged in a staggered pattern.

[0130] Here, the three liquid discharge heads 110a_C1, 110a_C2, and 110a_C3 are arranged in the same way as in arrangement example 2 shown in Figure 10 above, except that liquid discharge head 110a_C4 is omitted. Also, the arrangement of the three liquid discharge heads 110a_M1, 110a_M2, and 110a_M3 and the arrangement of the three liquid discharge heads 110a_Y1, 110a_Y2, and 110a_Y3 are the same as the arrangement of the three liquid discharge heads 110a_C1, 110a_C2, and 110a_C3.

[0131] Figure 15 shows an example of displaying the layout image GA, which represents layout example 4, in the display area 211. The layout image GA and reception image GB shown in Figure 15 are the same as the layout image GA and reception image GB shown in Figure 8, except that they are applied to layout example 4.

[0132] Figure 15 shows the state in which information indicating arrangement example 4 has been entered in areas RB1, RB2, and RB3. Here, in area RB1, "1" is entered to indicate that there is one row each of the liquid ejection heads 110a for cyan ink, magenta ink, and yellow ink, and "Null" is entered to indicate that there is no liquid ejection head 110a for black ink. In area RB2, "3" is entered to indicate that there are three rows each of the liquid ejection heads 110a for cyan ink, magenta ink, and yellow ink, and "Null" is entered to indicate that there is no liquid ejection head 110a for black ink. In area RB3, "Offset" is entered to indicate that an offset exists.

[0133] In Figure 15, the cyan head area RA_C is displayed in the configuration shown in arrangement example 4. In the example shown in Figure 15, of the eight head display areas B1 that make up the cyan head area RA_C, three head display areas B1 corresponding to arrangement example 4 are displayed in a different manner from the other five head display areas B1. More specifically, of the eight head display areas B1 that make up the cyan head area RA_C, the letters "C1", "C2", and "C3" are displayed in the head display areas B1 corresponding to the arrangement of the liquid ejection head 110a. Similarly, of the eight head display areas B1 that make up the magenta head area RA_M, three head display areas B1 corresponding to arrangement example 4 are displayed in a different manner from the other five head display areas B1. Of the eight head display areas B1 that make up the yellow head area RA_Y, three head display areas B1 corresponding to arrangement example 4 are displayed in a different manner from the other five head display areas B1.

[0134] As described above, the liquid ejection system 10 includes a head unit 110, a first output unit 252, a first input unit 253, and a notification unit 254. The head unit 110 ejects ink, which is an example of a "liquid". The first output unit 252 outputs unique information D1 specific to the head unit 110 to the external server 300. The first input unit 253 receives update information D2 for the head unit 110, which is associated with the unique information D1 and input from the external server 300. The notification unit 254 notifies the user based on the update information D2.

[0135] In the liquid ejection system 10 described above, the first output unit 252 outputs unique information D1 to the external server 300, so that the external server 300 can generate update information D2 based on the unique information D1. Then, the update information D2 is input to the first input unit 253 from the external server 300, and the notification unit 254 makes a notification based on the update information D2, so that the update information D2 is provided to the user. In this way, even if the printer manufacturer is different from the head manufacturer, the update information D2 of the head unit 110 can be quickly provided to the user.

[0136] As mentioned above, update information D2 includes defect notification information D2a to inform the user of defects in the head unit 110. Therefore, defects in the head unit 110 can be quickly notified to the user.

[0137] Furthermore, as mentioned above, the head unit 110 includes a memory circuit 116, which is an example of a "memory unit." The memory circuit 116 stores the program PG0 used for ejecting ink. The update information D2 includes update information D2b for updating the program PG0. Therefore, the update information D2b can be provided to the user quickly.

[0138] In this embodiment, as described above, the liquid dispensing system 10 includes a liquid dispensing device 100 equipped with a head unit 110, a first processing device 200 that generates recording data DP used by the liquid dispensing device 100, and an external server 300.

[0139] As mentioned above, the first output unit 252, the first input unit 253, and the notification unit 254 are each provided in the first processing unit 200. Therefore, the first processing unit 200 can display information based on the update information D2.

[0140] Furthermore, as mentioned above, the external server 300 stores correspondence information D4 regarding the correspondence between unique information D1 and update information D2. Therefore, the external server 300 can generate update information D2 using the correspondence information D4.

[0141] 2. Second Embodiment The following describes a second embodiment of this disclosure. For elements whose operation or function is the same as in the first embodiment in the embodiments described below, the reference numerals used in the description of the first embodiment will be reused, and detailed descriptions of each will be omitted as appropriate.

[0142] Figure 16 is a schematic diagram showing an example configuration of the first processing apparatus 200A in the second embodiment. This embodiment is the same as the first embodiment described above, except that the first processing unit 200A is used instead of the first processing unit 200. The first processing unit 200A is configured in the same way as the first processing unit 200, except that program PG3 is used instead of program PG1 and an imaging device 260 is added. Program PG3 is the same as program PG1, except that it is possible to have the computer execute a process to acquire unique information D1 using the imaging device 260.

[0143] The imaging device 260 is a device having an image sensor such as a CCD image sensor or a CMOS image sensor that images the multiple liquid discharge heads 110a. For example, the imaging device 260 is positioned opposite the multiple liquid discharge heads 110a. The imaging device 260 generates imaging information D5 showing images of the multiple liquid discharge heads 110a. The imaging information D5 is stored in the memory circuit 240. In addition to the image sensor, the imaging device 260 may also include optical systems such as lenses as needed.

[0144] The processing circuit 250 reads and executes the program PG3 from the memory circuit 240, and functions as an acquisition unit 251A, a first output unit 252, a first input unit 253, a notification unit 254, a display control unit 255, a first receiving unit 256, and a second receiving unit 257.

[0145] The acquisition unit 251A acquires not only unique information D1 but also arrangement information D3. Here, the acquisition unit 251A acquires arrangement information D3 based on imaging information D5. For example, the acquisition unit 251A recognizes the arrangement of multiple liquid discharge heads 110a by performing image processing that recognizes objects targeting the liquid discharge heads 110a from the image indicated by imaging information D5, and generates arrangement information D3 based on the recognition result.

[0146] The second embodiment described above, like the first embodiment described above, can also quickly provide the user with update information D2 from the head unit 110.

[0147] 3. Third Embodiment A third embodiment of this disclosure will be described below. For elements whose operation or function is the same as in the first embodiment in the embodiments described below, the reference numerals used in the description of the first embodiment will be reused, and detailed descriptions of each will be omitted as appropriate.

[0148] Figure 17 is a schematic diagram showing an example configuration of the liquid discharge system 10B according to the third embodiment. The liquid discharge system 10B is configured similarly to the liquid discharge system 10 of the first embodiment described above, except that it has liquid discharge devices 100B_1 to 100B_3 and first processing devices 200B_1 to 200B_3 instead of liquid discharge devices 100_1 to 100_3 and first processing devices 200_1 to 200_3.

[0149] Liquid dispensing device 100B_1 is communicatively connected to the first processing unit 200B_1 and is also communicatively connected to an external server 300 via a communication network NW. Liquid dispensing device 100B_2 is communicatively connected to the first processing unit 200B_2 and is also communicatively connected to an external server 300 via a communication network NW. Liquid dispensing device 100B_3 is communicatively connected to the first processing unit 200B_3 and is also communicatively connected to an external server 300 via a communication network NW. Thus, liquid dispensing devices 100B_1 to 100B_3 correspond to the first processing units 200B_1 to 200B_3 respectively, and are communicatively connected to the first processing units 200B_1 to 200B_3 and are also communicatively connected to an external server 300 via a communication network NW. Hereafter, liquid dispensing devices 100B_1 to 100B_3 may be referred to simply as liquid dispensing device 100B without distinction. Sometimes, the first processing units 200B_1 to 200B_3 are referred to simply as the first processing unit 200B without distinction.

[0150] In the example shown in Figure 17, the liquid discharge system 10B has three liquid discharge devices 100B and three first processing devices 200B. However, this number is not limited to three, and may be one, two, or four or more. In other words, the number of sets of liquid discharge devices 100B and first processing devices 200B is not limited to three, but may be one, two, or four or more.

[0151] The liquid dispensing device 100B is configured similarly to the liquid dispensing device 100 of the first embodiment described above, except that it has a head unit 110B instead of a head unit 110. The head unit 110B is the same as the head unit 110 except that it has the added functions of acquiring and outputting unique information D1 and inputting and notifying update information D2. Details of the liquid dispensing device 100B will be described later with reference to Figure 18.

[0152] The liquid dispensing device 100B outputs unique information D1 to the external server 300 and receives update information D2 from the external server 300. The liquid dispensing device 100B then makes a notification based on the update information D2.

[0153] The first processing unit 200B is configured in the same manner as the first processing unit 200 of the first embodiment described above, except that it omits the functions for acquiring and outputting unique information D1 and inputting and notifying update information D2.

[0154] Figure 18 is a schematic diagram showing an example of the configuration of a liquid dispensing device 100B used in the liquid dispensing system 10B according to the third embodiment. As shown in Figure 18, the head unit 110B of the liquid dispensing device 100B is configured in the same way as the head unit 110 of the first embodiment, except that it has a control module 110c instead of a control module 110b. The control module 110c is configured in the same way as the control module 110b, except that it uses an information DG and has a communication device 115 added.

[0155] The communication device 115 is a circuit capable of communicating with the external server 300. For example, the communication device 115 is a wireless or wired interface such as LAN or USB. The communication device 115 transmits unique information D1 and receives update information D2 through communication with the external server 300. That is, the communication device 115 functions as a first connection unit 115a that is connected to the external server 300 in a manner that enables communication, similar to the first connection unit 231 in the first embodiment.

[0156] The memory circuit 116 stores information DG similar to that shown in Figure 4 above. Specifically, the memory circuit 116 stores program PG1, unique information D1, and update information D2. The processing circuit 117 then reads program PG1 from the memory circuit 116 and executes it, thereby functioning as an acquisition unit 117a, a first output unit 117b, a first input unit 117c, and a notification unit 117d.

[0157] The acquisition unit 117a acquires unique information D1, similar to the acquisition unit 251 in the first embodiment. The first output unit 117b outputs the unique information D1 via the first connection unit 115a, similar to the first output unit 252 in the first embodiment. The first input unit 117c receives update information D2 via the first connection unit 115a, similar to the first input unit 253 in the first embodiment. The notification unit 117d provides notification based on the update information D2, similar to the notification unit 254 in the first embodiment. This notification may be provided by displaying it in the display area 211 of the first processing unit 200B, or by displaying it on a display device provided in the liquid dispensing device 100B, etc.

[0158] Figure 19 is a flowchart showing the processing of the liquid dispensing system 10B according to the third embodiment. In the liquid dispensing system 10B, first, as shown in Figure 19, in step S201, the liquid dispensing device 100B acquires unique information D1. Then, in step S202, the liquid dispensing device 100B outputs the unique information D1 to the external server 300.

[0159] Next, in step S203, the external server 300 inputs unique information D1. Then, in step S204, the external server 300 generates update information D2 based on the unique information D1. After that, in step S205, the external server 300 outputs the update information D2 to the liquid dispensing device 100B.

[0160] Next, in step S206, the liquid dispensing device 100B inputs update information D2. Then, in step S207, the liquid dispensing device 100B makes a notification based on the update information D2.

[0161] The third embodiment described above, like the first embodiment described above, can also quickly provide the user with update information D2 from the head unit 110. In this embodiment, as described above, the first output unit 117b, the first input unit 117c, and the notification unit 117d are each provided in the liquid ejection device 100B. Therefore, the liquid ejection device 100B can provide notifications based on the update information D2. Furthermore, since it is not necessary to incorporate a program for such notifications into the first processing unit 200B, the burden on the printer manufacturer or the user can be reduced.

[0162] 4. Fourth Embodiment A fourth embodiment of this disclosure will now be described. For elements whose operation or function is the same as in the first embodiment in the embodiments described below, the reference numerals used in the description of the first embodiment will be reused, and detailed descriptions of each will be omitted as appropriate.

[0163] Figure 20 is a schematic diagram showing an example configuration of the liquid dispensing system 10C according to the fourth embodiment. The liquid dispensing system 10C is configured in the same way as the liquid dispensing system 10 of the first embodiment described above, except that it includes an external server 300C instead of the external server 300, and a second processing unit 400C instead of the second processing unit 400.

[0164] The external server 300C is configured in the same way as the external server 300 of the first embodiment, except that it outputs unique information D1 to the second processing unit 400C, receives update information D2 from the second processing unit 400C, and outputs the update information D2 to the first processing unit 200.

[0165] The second processing unit 400C has a second input unit 410 and a second output unit 420, and is configured similarly to the second processing unit 400 of the first embodiment, except that it is capable of generating or inputting update information D2. The second input unit 410 and the second output unit 420 are realized by executing a program installed in the second processing unit 400C using the processor of the second processing unit 400C.

[0166] The second input unit 410 receives unique information D1 from the external server 300C. The second output unit 420 outputs update information D2 to the external server 300C. The update information D2 to be output is generated in the same way as the external server 300 in the first embodiment described above, or it is acquired by the operator of the second processing unit 400C based on the input unique information D1.

[0167] Figure 21 is a flowchart showing the processing of the liquid discharge system 10C according to the fourth embodiment. In the liquid discharge system 10C, first, as shown in Figure 21, in step S301, the first processing unit 200 acquires unique information D1. Then, in step S302, the first processing unit 200 outputs the unique information D1 to the external server 300C.

[0168] Next, in step S303, the external server 300 inputs unique information D1. Then, in step S304, the external server 300 outputs unique information D1 to the second processing unit 400C.

[0169] Subsequently, in step S305, the second processing unit 400C receives unique information D1. Then, in step S306, the second processing unit 400C obtains update information D2. Then, in step S307, the second processing unit 400C outputs the update information D2 to the external server 300C.

[0170] Next, in step S308, the external server 300 inputs update information D2. Then, in step S309, the external server 300 outputs update information D2 to the first processing unit 200.

[0171] Next, in step S310, the first processing unit 200 inputs update information D2. Then, in step S311, the first processing unit 200 makes a notification based on the update information D2.

[0172] The third embodiment described above, like the first embodiment described above, can also quickly provide the user with update information D2 from the head unit 110. In this embodiment, as described above, the liquid discharge system 10C further has a second processing unit 400C which is different from the first processing unit 200. The second processing unit 400C has a second input unit 410 and a second output unit 420. Unique information D1 is input to the second input unit 410 from the external server 300. The second output unit 420 outputs update information D2 to the external server 300. Therefore, the second processing unit 400C can generate update information D2 and generate and update corresponding information D4.

[0173] 5. Variations Although the liquid dispensing system of this disclosure has been described above based on the illustrated embodiments, this disclosure is not limited thereto. Furthermore, the configuration of each part of this disclosure can be replaced with any configuration that performs a similar function to the embodiments described above, and any configuration can also be added.

[0174] 5-1. Variation 1 In the above-described configuration, an example is given in which the update information D2 includes both the deficiency notification information D2a and the update information D2b. However, in the update information D2, one of the deficiency notification information D2a and the update information D2b may be omitted, or information other than the deficiency notification information D2a and the update information D2b may be included.

[0175] 5-2. Variation 2 In the configuration described above, the example given is that the external server 300 is a cloud server, but the configuration is not limited to this. For example, the external server 300 may be a server other than a cloud server, a virtual server, or an on-premises server.

[0176] 5-3. Modification Example 3 In the above-described embodiment, a configuration in which the driving element 111f is a piezoelectric element is exemplified, but the invention is not limited to this configuration. For example, the driving element 111f may be a heater that heats the ink in the pressure chamber C. In other words, the driving method for the head chip 111 is not limited to the piezoelectric method, but may be a thermal method, for example. [Explanation of symbols]

[0177] 10...Liquid dispensing system, 10B...Liquid dispensing system, 100...Liquid dispensing device, 100B...Liquid dispensing device, 100B_1...Liquid dispensing device, 100B_2...Liquid dispensing device, 100B_3...Liquid dispensing device, 100_1...Liquid dispensing device, 100_2...Liquid dispensing device, 100_3...Liquid dispensing device, 110...Head unit, 110B...Head unit, 110a...Liquid dispensing head, 110a_C1...Liquid dispensing head, 110a_C2...Liquid dispensing head, 110a_C3...Liquid dispensing head, 110a_C4...Liquid dispensing head, 110a_M1...Liquid dispensing head, 11 0a_M2…Liquid discharge head, 110a_M3…Liquid discharge head, 110a_Y1…Liquid discharge head, 110a_Y2…Liquid discharge head, 110a_Y3…Liquid discharge head, 110b…Control module, 110c…Control module, 111…Head chip, 111a…Flow channel substrate, 111b…Pressure chamber substrate, 111c…Nozzle plate, 111d…Vibration absorber, 111e…Diaphragm, 111f…Drive element, 111g…Protective plate, 111h…Case, 111i…Wiring board, 112…Drive circuit, 113…Power supply circuit, 114…Drive signal generation circuit, 115…Communication device, 115a…First contact Continuation unit, 116...memory circuit, 117...processing circuit, 117a...acquisition unit, 117b...first output unit, 117c...first input unit, 117d...notification unit, 120...movement mechanism, 130...communication device, 140...memory circuit, 150...processing circuit, 200...first processing unit (computer, management device), 200A...first processing unit, 200B...first processing unit, 200B_1...first processing unit, 200B_2...first processing unit, 200B_3...first processing unit, 200_1...first processing unit (computer, management device), 200_2...first processing unit (computer, management device), 200_3...first 1 Processing unit (computer, management unit), 210…Display device, 211…Display area, 220…Input device, 230…Communication device, 231…First connection unit, 240…Memory circuit, 250…Processing circuit, 251…Acquisition unit, 251A…Acquisition unit, 252…First output unit, 253…First input unit, 254…Notification unit, 255…Display control unit, 256…First reception unit, 257…Second reception unit, 260…Imaging device, 300…External server, 310…Display device, 320…Input device, 330…Communication device, 331…Second connection unit, 340…Memory circuit, 350…Processing circuit, 351…Output unit, 352…Input unit,353...Calculation unit, 400...Second processing unit, 410...Second input unit, 420...Second output unit, B1...Head display area, B2...Error image, C...Pressure chamber, Com...Drive signal, D1...Unique information, D2...Update information, D2a...Defect notification information, D2b...Update information, D3...Placement information, D4...Correspondence information, D5...Imaging information, DG...Information, DP...Recorded data, DR1...Direction, DR2...Direction, FN...Nozzle surface, GA...Placement image, GB...Reception image, GC...Property image, GD...Input image, IH...Inlet, L1...First row, L2...Second row, N...Nozzle, NW...Communication network, Na...Communication channel, PD...Drive pulse, PG0...Program, PG1...Program (Management program), PG2...Program, PG3...Program, R...Reservoir Bar, R1...space, R2...space, RA_B...black head area, RA_C...cyan head area, RA_M...magenta head area, RA_Y...yellow head area, RB1...area, RB2...area, RB3...area, RC1...area, RC2...area, RC3...area, Ra...supply channel, S101...step, S102...step, S103...step, S104...step, S105...step, S106...step, S107...step, S201...step, S202...step, S203...step, S204...step, S205...step, S206...step, S207...step, SI...print data signal, Sk...control signal, VBS...offset potential, VHV...power supply potential, dCom...waveform specification signal.

Claims

1. A head unit that dispenses liquid, A first output unit that outputs unique information specific to the head unit to an external server, A first input unit receives update information, which is information that can be updated even if it is the same unique information, associated with the unique information and input from the external server; A display area for displaying the status of the head unit, A notification unit that notifies the user by updating the display in the display area based on the aforementioned update information, is included. A liquid dispensing system characterized by the following features.

2. The update information includes defect notification information to inform the user of defects in the head unit. The liquid dispensing system according to feature 1.

3. The head unit includes a storage unit that stores a program used for dispensing liquid, The aforementioned update information includes update information for updating the program, The liquid dispensing system according to feature 1.

4. A liquid dispensing device equipped with the aforementioned head unit, A first processing device that generates recording data used in the liquid dispensing device, The external server and, The liquid dispensing system according to feature 1.

5. Each of the first output unit, the first input unit, and the notification unit is provided in the liquid dispensing device or the first processing device. The liquid dispensing system according to feature 4.

6. The external server stores correspondence information relating to the correspondence between the unique information and the update information. The liquid dispensing system according to feature 4.

7. The system further comprises a second processing unit different from the first processing unit, The second processing apparatus is A second input unit into which the unique information is input from the external server, It has a second output unit that outputs the update information to the external server, The liquid dispensing system according to feature 4.

Images