Inkjet recording device and program

Abstract

To provide an inkjet recording device and a program which can suppress deterioration due to cleaning of a conveyance member.SOLUTION: An inkjet recording device 1 includes: a control part 100 for controlling operation of a conveyance member 33 for conveying a recording medium P; a head unit 4 for discharging ink containing a binder resin onto the recording medium P on the conveyance member 33 and forming an image; and a cleaning part 5 for cleaning the conveyance member 33, wherein the control part 100 executes a cleaning mode of continuing conveyance of the conveyance member 33 and making the cleaning part 5 clean the conveyance member 33, or stops the conveyance of the conveyance member 33 and executes a warning that a foreign matter may be adhered to the conveyance member 33, when stop of conveyance operation of the conveyance member 33 is instructed.SELECTED DRAWING: Figure 4B

Description

[Technical field]

[0001] The present invention relates to an inkjet printing apparatus and a program. [Background technology]

[0002] In the past, inkjet textile printing using dye inks has been known. However, in the case of dye ink textile printing, a water washing process is required for the recording medium, namely, the cloth. Therefore, from the viewpoint of environmental load, inkjet textile printing using pigment inks has been considered.

[0003] In an inkjet recording device using pigment ink, it is necessary to add a binder resin to the ink in order to bond the pigment to the surface of the fabric fibers. However, unlike dye ink, pigment ink with added binder resin becomes difficult to remove once it dries and adheres to the transport member that transports the recording medium.

[0004] Therefore, for example, Patent Document 1 describes an inkjet recording apparatus in which the cleaning conditions of a cleaning member are changed depending on the degree of contamination of the ink on the transport member. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2014-185028 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, in order to clean and remove the pigment ink that has dried and adhered to the transport member, it is necessary to increase the strength of the cleaning operation. Therefore, even if the pigment ink that has dried and adhered to the transport member can be cleaned and removed, there is a risk that the transport member may be deteriorated.

[0007] The present invention has been made in view of the above circumstances, and has an object to provide an inkjet recording apparatus capable of suppressing deterioration of a transport member due to cleaning. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention provides an inkjet recording apparatus, comprising: A control unit that controls a conveying operation of a conveying member that conveys the recording medium; a head unit that ejects ink containing a binder resin onto the recording medium on the transport member to form an image; a cleaning unit that cleans the conveying member, When the control unit is instructed to stop the transport operation of the transport member, it either executes a cleaning mode in which it continues transporting the transport member and causes the cleaning unit to clean the transport member, or it stops transporting the transport member and issues a warning that there may be foreign matter attached to the transport member.

[0009] The invention described in claim 2 is the inkjet recording apparatus described in claim 1, In the cleaning mode, the control unit causes the transport member to be transported such that an area of ​​the transport member located under the recording medium on which the image is formed is cleaned by the cleaning unit.

[0010] The invention described in claim 3 is the inkjet recording apparatus described in claim 2, In the cleaning mode, the control unit causes the cleaning unit to transport the sheet at least to an upstream end of the region in the transport direction.

[0011] The invention described in claim 4 is the inkjet recording apparatus described in claim 3, The cleaning unit includes a plurality of cleaning members. In the cleaning mode, the control unit transports at least one of the plurality of cleaning members until the cleaning member passes through the area.

[0012] The invention described in claim 5 is the inkjet recording apparatus described in claim 1, The control unit executes the cleaning mode when image formation under predetermined conditions is completed and the stop is instructed.

[0013] The invention described in claim 6 is the inkjet recording apparatus described in claim 5, The predetermined condition is when at least one of the following conditions is satisfied: when the recording medium is a thin fabric, when borderless printing is performed, or when high coverage printing is performed.

[0014] The invention described in claim 7 is the inkjet recording apparatus described in claim 5, The predetermined conditions can be set by the user.

[0015] The invention described in claim 8 is the inkjet recording apparatus described in claim 1, The control unit issues the warning after an error stop or an emergency stop of the transport member is released, and executes the cleaning mode in response to a user instruction.

[0016] The invention described in claim 9 is the inkjet recording apparatus described in claim 1, a detection unit capable of detecting a foreign object on a placement surface of the conveying member, The control unit issues the warning when the detection unit detects a foreign object.

[0017] The invention described in claim 10 is the inkjet recording apparatus according to any one of claims 1 to 9, The transport member is a transport belt.

[0018] The invention described in claim 11 is the inkjet recording apparatus described in claim 10, An adhesive is applied to the carrying surface of the conveyor belt, which is the side on which the recording medium is placed.

[0019] The invention described in claim 12 is the inkjet recording apparatus according to any one of claims 1 to 9, The transport member is a plurality of transport rollers.

[0020] The invention described in claim 13 is the inkjet recording apparatus according to any one of claims 1 to 9, The ink is a pigment ink.

[0021] The invention described in claim 14 is the inkjet recording apparatus according to any one of claims 1 to 9, The binder resin is added in an amount of 5% by mass to 15% by mass with respect to the total amount of the ink.

[0022] The invention described in claim 15 is the inkjet recording apparatus according to any one of claims 1 to 9, The cleaning unit includes a brush roller.

[0023] The invention described in claim 16 is a program, A computer of an inkjet recording apparatus including a head unit that ejects an ink containing a binder resin onto a recording medium on a transport member to form an image, and a cleaning unit that cleans the transport member, functioning as a control unit for controlling the operation of a conveying member that conveys the recording medium; When the control unit is instructed to stop the transport operation of the transport member, it either executes a cleaning mode in which it continues transporting the transport member and causes the cleaning unit to clean the transport member, or it stops transporting the transport member and issues a warning that there may be foreign matter attached to the transport member. Effect of the Invention

[0024] According to the present invention, deterioration of the transport member due to cleaning can be suppressed. [Brief description of the drawings]

[0025] [Figure 1]FIG. 1 is a schematic diagram of an inkjet recording apparatus. [Diagram 2] FIG. 1 is a block diagram of an inkjet recording apparatus. [Diagram 3] 13 is a flowchart of a regular cleaning process. [Figure 4A] FIG. 2 is a schematic diagram of an inkjet recording apparatus before a cleaning mode is executed. [Figure 4B] FIG. 2 is a schematic diagram of an inkjet recording apparatus during execution of a cleaning mode. [Diagram 5] 13 is a flowchart of an irregular cleaning process when an error occurs. [Figure 6] 13 is a flowchart of an irregular cleaning process at the time of an abnormal stop. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] An embodiment of the present invention will be described below with reference to the accompanying drawings. Note that the following description is merely an example of the embodiment of the present invention and is not intended to limit the present invention.

[0027] [Inkjet recording device] First, we will disclose an example of the configuration of an inkjet recording apparatus 1 according to this embodiment. Fig. 1 is a schematic diagram of the inkjet recording apparatus 1. The inkjet recording apparatus 1 includes a paper feeder 2, a transport device 3, a head unit 4, a cleaning unit 5, a detection unit 6, and a paper discharge device 7.

[0028] [Paper Feeding Device] The paper feeder 2 includes a recording medium setting section 21. A desired recording medium P is rotatably set in the recording medium setting section 21, for example, wound around a support shaft. The paper feeder 2 includes a transport section made up of a single or multiple first transport rollers 22, on the inkjet recording device 1 side of the recording medium setting section 21. In the paper feeder 2, the recording medium P placed on the recording medium setting section 21 is transported to the inkjet recording device 1 by the transport section.

[0029] [Recording medium] The recording medium P is a recording medium that is typically used in inkjet recording, such as paper, fabric, plastic film, or glass plate. In the following, the recording medium P is exemplified as fabric, but is not limited to this.

[0030] [Transportation device] In the conveying device 3, an endless conveying belt 33 of a predetermined width is stretched around a driving roller 31 and a driven roller 32 that are arranged in parallel with each other at a predetermined interval. The upper surface of the conveying belt 33 stretched around the driving roller 31 and the driven roller 32 serves as a placement surface on which the recording medium P is placed in close contact with the conveying belt 33.

[0031] An adhesive layer is formed on the mounting surface of the conveyor belt 33 to adhere the recording medium P during conveyance. The adhesive layer is formed by applying an adhesive called a backing agent. The adhesive that constitutes the adhesive layer may be, for example, a water-soluble resin, a pressure-sensitive resin, or a heat-sensitive resin.

[0032] The driving roller 31 is driven by a sub-scanning motor (not shown). The sub-scanning motor is under the control of the control unit 100 (described later). The sub-scanning motor rotates the driving roller 31 at a predetermined speed in the transport direction, which is the direction of the arrow in FIG. 1, by the rotation of the driving roller 31. The transport belt 33 stretched between the driving roller 31 and the driven roller 32 rotates and moves. By this operation, the recording medium P placed on the placement surface of the transport belt 33 is transported in the transport direction. Thus, in this embodiment, the transport belt 33 functions as a transport member that transports the recording medium P.

[0033] [Head unit] The head unit 4 records an image on the recording medium P transported by the transport device 3. The head unit 4 is composed of a plurality of inkjet heads that eject ink at appropriate timing based on image data to record an image. The inkjet recording device 1 includes, for example, four head units 4 corresponding to four colors of ink, yellow (Y), magenta (M), cyan (C), and black (K). The four head units 4 are arranged at predetermined intervals in the order of colors YMCK from the upstream side in the transport direction of the recording medium P. The number of head units 4 may be three or less, or five or more. The head unit 4 may also be composed of a single inkjet head.

[0034] 〔ink〕 The ink ejected by the head unit 4 is a pigment ink containing a solvent and a pigment.

[0035] (solvent) The solvent of the ink is not particularly limited, and for example, an organic solvent or water can be used. The ink may contain a single solvent or multiple solvents.

[0036] When water is used as the solvent of the ink, the water is not particularly limited, and examples thereof include ion-exchanged water, distilled water, pure water, etc. The content of water in the ink is preferably in the range of 30 to 70% by mass with respect to the total amount of the ink.

[0037] When an organic solvent is used as the ink solvent, it is preferable to use a water-soluble organic solvent. For example, monohydric alcohols (e.g., methanol, ethanol, propanol, pentanol, hexanol, cyclohexanol, benzyl alcohol), polyhydric alcohols (e.g., ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, glycerin, butylene glycol, hexanediol, pentanediol, hexanetriol, thiodiglycol, 1,2-butanediol, 1,3-butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,6-hexanediol, 1,2-heptanediol, trimethylolpropane), polyhydric alcohol ethers (e.g., ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, diethylene glycol monomethyl ether, Examples of the water-soluble organic solvent that can be used include dimethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, triethylene glycol monomethyl ether, tetraethylene glycol monomethyl ether, and tripropylene glycol monoethyl ether, amines (e.g., ethanolamine, N-ethyldiethanolamine, morpholine, N-ethylmorpholine, ethylenediamine, diethylenediamine, and triethylenetetramine), amides (e.g., formamide, N,N-dimethylformamide, and N,N-dimethylacetamide), heterocycles (e.g., 2-pyrrolidone, N-methyl-2-pyrrolidone, N-cyclohexyl-2-pyrrolidone, 2-oxazolidone, and 1,3-dimethyl-2-imidazolidine), sulfoxides (e.g., dimethyl sulfoxide), and sulfones (e.g., sulfolane).

[0038] (Pigments) The pigment may be an organic pigment or an inorganic pigment such as titanium oxide. The pigment is generally anionic. The ink may contain one or more types of pigment.

[0039] Examples of organic pigments include azo, azomethine, methine, diphenylmethane, triphenylmethane, quinacridone, anthraquinone, perylene, indigo, quinophthalone, isoindolinone, isoindoline, azine, oxazine, thiazine, dioxazine, thiazole, phthalocyanine, and diketopyrrolopyrrole.

[0040] Examples of organic pigments for yellow include CI Pigment Yellow 12, CI Pigment Yellow 13, CI Pigment Yellow 14, CI Pigment Yellow 15, CI Pigment Yellow 15:3, CI Pigment Yellow 17, CI Pigment Yellow 74, CI Pigment Yellow 93, CI Pigment Yellow 128, CI Pigment Yellow 94, CI Pigment Yellow 138, and CI Pigment Yellow 155.

[0041] Examples of organic pigments for magenta include CI Pigment Red 122, CI Pigment Violet 19, CI Pigment Red 202, CI Pigment Red 57:1, CI Pigment Red 177, CI Pigment Red 185, and CI Pigment Red 168.

[0042] Examples of organic pigments for cyan include CI Pigment Blue 15, CI Pigment Blue 15:2, CI Pigment Blue 15:3, CI Pigment Blue 16, and CI Pigment Blue 60.

[0043] Examples of organic pigments for black include CI Pigment Black 1, CI Pigment Black 6, and CI Pigment Black 7.

[0044] Titanium oxide has three crystal forms: anatase, rutile, and brookite, but the most commonly used are roughly classified into anatase and rutile. Although not particularly limited, the crystal form of titanium oxide is preferably rutile, which has a high refractive index and high hiding power. Specific examples of titanium oxide include Fuji Titanium Industry's TR series, Teika's JR series, and Ishihara Sangyo Kaisha's Typeque.

[0045] The pigment may be a self-dispersing pigment. A self-dispersing pigment is a pigment particle whose surface is modified with a group having a hydrophilic group, and has pigment particles and hydrophilic groups bonded to the surface of the pigment particles.

[0046] Examples of hydrophilic groups include carboxy groups, sulfonic acid groups, and phosphorus-containing groups. Examples of phosphorus-containing groups include phosphoric acid groups, phosphonic acid groups, phosphinic acid groups, phosphite groups, and phosphate groups.

[0047] Examples of commercially available self-dispersing pigments include Cabot's Cab-0-Jet® 200K, 250C, 260M, and 270V (sulfonic acid group-containing self-dispersing pigments), Cab-0-Jet® 300K (carboxylic acid group-containing self-dispersing pigments), and Cab-0-Jet® 400K, 450C, 465M, 470V, and 480V (phosphate group-containing self-dispersing pigments).

[0048] (binder resin) Furthermore, a binder resin is added to the ink discharged from the head unit 4. In particular, by adding an anionic binder resin to the ink, the fixation of the pigment is improved.

[0049] Examples of anionic binder resins that can be used include polyesters, polyurethanes, polyacrylics, and polymethacrylics having acidic groups such as carboxyl groups, sulfonyl groups, and phosphorus-containing groups (phosphate groups or phosphonic acid groups). More specifically, examples of anionic binder resins that can be used include Acryset EMN series manufactured by Nippon Shokubai Co., Ltd., NeoCryl series manufactured by Kusumoto Chemicals Co., Ltd., Joncryl series manufactured by BASF, Takelac series manufactured by Mitsui Chemicals, Inc., HUX series manufactured by ADEKA, Evaphanol series manufactured by NICCA Chemical Co., Ltd., and Superflex series manufactured by Daiichi Kogyo Seiyaku Co., Ltd.

[0050] The amount of binder resin added (solid content) is preferably within the range of 5 to 15% by mass with respect to the total amount of ink. When the amount of binder resin added to the ink is 5% by mass or more, the fixation of the pigment can be improved. When the amount of binder resin added to the ink is 15% by mass or less, the amount of aggregates adhering to the conveyor belt 33 does not become too large, and deterioration of the cleaning ability of the cleaning unit 5 can be suppressed.

[0051] The components of the ink are not limited to pigments and solvents. Components other than pigments and solvents may be added to the ink as necessary within a range that does not impair the effects of the present invention. For example, surfactants such as anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants may be added to the ink. Preservatives such as aromatic halogen compounds (e.g., Preventol CMK), methylene dithiocyanate, halogen-containing nitrogen-sulfur compounds, and 1,2-benzisothiazolin-3-one (e.g., PROXEL GXL) may be added to the ink. pH adjusters such as citric acid, sodium citrate, hydrochloric acid, and sodium hydroxide may be added to the ink.

[0052] In addition, the method of adding the binder resin to the ink is not limited to the method of making the ink contain the binder resin. For example, a first liquid containing a binder resin and a solvent and a second liquid containing a pigment and a solvent may be continuously discharged onto the recording medium P in a so-called wet-on-wet manner. In this configuration, a head unit that discharges the first liquid may be provided upstream in the conveying direction from the head unit 4 that discharges the second liquid. When the binder resin is added in a wet-on-wet manner, the ink is more likely to aggregate. However, if the inkjet recording device 1 is equipped with the cleaning unit 5 according to this embodiment, foreign matter attached to the conveying belt 33 can be easily removed even if the degree of aggregation is high.

[0053] [Cleaning Department] The cleaning unit 5 performs a cleaning process to remove foreign matter (mainly coagulated ink) adhering to the conveyor belt 33 of the conveyor device 3. The cleaning unit 5 includes, for example, a collection unit 51, a water sprinkling unit 52, a brush roller 53, a scraping unit 54, and a water storage unit 55. Of the cleaning unit 5, the water sprinkling unit 52, the brush roller 53, and the scraping unit 54 are cleaning members that perform a cleaning process on the conveyor belt 33.

[0054] (Collection Department) The collection unit 51 is a bucket-shaped member that is open on the side of the conveyor belt 33. The collection unit 51 collects the cleaning liquid dripping from the conveyor belt 33, the water sprinkling unit 52, the brush roller 53, the scraping unit 54, etc. In the collection unit 51, for example, the water sprinkling unit 52, the brush roller 53, the scraping unit 54, and the water storage unit 55 are arranged in this order from the upstream side to the downstream side in the conveying direction of the conveyor belt 33.

[0055] (Watering section) The water sprinkler unit 52 has nozzles that span the entire width of the conveyor belt 33 in the width direction perpendicular to the conveying direction. The nozzles of the water sprinkler unit 52 are provided at a position facing the placement surface of the conveyor belt 33. The nozzles of the water sprinkler unit 52 spray cleaning liquid supplied from the water storage unit 55 onto the placement surface of the conveyor belt 33. The cleaning liquid is sprayed, for example, into the area between the brush roller 53 and the conveyor belt 33. Spraying the cleaning liquid by the water sprinkler unit 52 can remove foreign matter attached to the conveyor belt 33. In addition, spraying the cleaning liquid onto the conveyor belt 33 enhances the cleaning effect of the following brush roller 53 on the conveyor belt 33. The cleaning liquid sprayed from the water sprinkler unit 52 is collected by the collection unit 51.

[0056] (Brush roller) The brush roller 53 is a roller-shaped brush having a brush bundle attached to a rotating shaft that is suspended across the entire width of the conveyor belt 33 in the width direction. The brush roller 53 is disposed so that the tip of the brush bundle contacts the support surface of the conveyor belt 33. Due to this arrangement, the brush roller 53 rotates in a state of constantly contacting the support surface of the conveyor belt 33.

[0057] The brush roller 53 is configured to rotate in a direction opposite to the conveying direction of the conveyor belt 33 at the contact position with the conveyor belt 33. The brush roller 53 rubs the support surface of the conveyor belt 33 with the brush bundle by rotating at a predetermined speed. The brush roller 53 removes, by this rubbing, foreign matter that has been cleaned by the spraying of cleaning liquid by the water sprinkler unit 52 from the support surface of the conveyor belt 33. The foreign matter and cleaning liquid removed by the brush roller 53 are collected by the collection unit 51.

[0058] (Scraping part) The scraping part 54 is a flat plate-like member made of, for example, an elastic member such as rubber or a PET sheet. The scraping part 54 is stretched across the entire width of the conveyor belt 33 in the width direction. The tip of the scraping part 54 is disposed so as to contact the placement surface of the conveyor belt 33. This arrangement enables the scraping part 54 to scrape off foreign matter and cleaning liquid remaining on the conveyor belt 33. The foreign matter and cleaning liquid scraped off by the scraping part 54 are collected by the collection part 51.

[0059] (Water storage section) The water storage section 55 is provided on the bottom side of the collection section 51. The water storage section 55 is configured to be able to store the foreign matter and cleaning liquid collected by the collection section 51. The water storage section 55 is provided with a flow path communicating with the spray section 52, and the flow path is provided with a pump (not shown) that sprays the cleaning liquid and a filter (not shown) that removes the foreign matter. With this configuration, the cleaning liquid sprayed from the spray section 52 is collected in the collection section 51 and then sent from the water storage section 55 to the spray section 52, so that the spray section 52 can repeatedly spray the cleaning liquid.

[0060] [Detection unit] The detection unit 6 has, for example, a monitoring camera, and is provided upstream of the cleaning unit 5 in the conveying direction. The detection unit 6 detects the presence or absence of foreign matter on the mounting surface of the conveyor belt 33 (particularly, an area 33a described below) before cleaning processing by the cleaning unit 5. Furthermore, the detection unit 6 detects the remaining state of foreign matter adhering to the mounting surface from the captured image of the mounting surface of the conveyor belt 33 by a known pattern matching process.

[0061] [Paper output device] The paper discharge device 7 is disposed downstream of the transport device 3 in the transport direction, and stores the recording medium P transported by the transport device 3. The paper discharge device 7 includes, for example, a winding unit 71 that winds up the recording medium P discharged by the transport device 3. The paper discharge device 7 also includes a transport unit that is located closer to the inkjet recording device 1 than the winding unit 71 and is composed of a single or multiple second transport rollers 72. The recording medium P discharged from the transport device 3 is transported to the winding unit 71 side by the transport unit. The winding unit 71 then winds up the recording medium P transported by the transport unit into a roll as required.

[0062] [Function configuration] 2 is a block diagram showing the main functional configuration of the inkjet recording apparatus 1. The inkjet recording apparatus 1 includes a control unit 100, a head driving unit 110, a transport driving unit 120, an input / output interface 130, a first pressure contact / separation unit 140, a brush driving unit 150, a second pressure contact / separation unit 160, a pump driving unit 170, and a notification unit 180.

[0063] [Control Unit] The control unit 100 includes a central processing unit (CPU) 101, a random access memory (RAM) 102, a read only memory (ROM) 103, a storage unit 104, and the like.

[0064] (CPU) The CPU 101 reads out various control programs and setting data stored in the ROM 103, stores them in the RAM 102, and executes the programs to perform various arithmetic processing. The CPU 101 also performs overall control of the overall operation of the inkjet recording apparatus 1.

[0065] (RAM) The RAM 102 provides a working memory space for the CPU 101 and stores temporary data. The RAM 102 may include a non-volatile memory.

[0066] (ROM) The ROM 103 stores various control programs and setting data executed by the CPU 101. Note that, instead of the ROM 103, a rewritable non-volatile memory such as an EEPROM (Electrically Erasable Programmable Read Only Memory) or a flash memory may be used.

[0067] (Storage part) The storage unit 104 stores a print job (image recording command) and image data related to the print job input from the external device 8 via the input / output interface 130. As the storage unit 104, for example, a HDD (Hard Disk Drive) is used, and a DRAM (Dynamic Random Access Memory) or the like may also be used in combination.

[0068] [Head drive unit] The head driving unit 110 supplies a driving signal corresponding to the image data to the head unit 4 at an appropriate timing under the control of the control unit 100. By this supply, the head driving unit 110 causes the nozzles of the head unit 4 to eject an amount of ink corresponding to the pixel values ​​of the image data.

[0069] [Transport drive unit] The transport driver 120 supplies a drive signal to the sub-scanning motor of the drive roller 31 under the control of the controller 100. In response to this supply, the transport driver 120 rotates the transport belt 33 at a predetermined speed and timing to control the transport operation.

[0070] [Input / Output Interface] The input / output interface 130 mediates the transmission and reception of data between the external device 8 and the control unit 100. The input / output interface 130 is configured, for example, with various serial interfaces and / or various parallel interfaces.

[0071] [External device] The external device 8 is, for example, a personal computer. The external device 8 supplies image recording commands (print jobs), image data, and the like to the control unit 100 via an input / output interface 130.

[0072] [First pressure contact / separation section] The first pressure contact / separation unit 140, under the control of the control unit 100, presses the brush roller 53 against and separates it from the placement surface of the conveyor belt 33. Through this control, the first pressure contact / separation unit 140 controls the amount of cleaning nip formed between the placement surface of the conveyor belt 33 and the brush roller 53.

[0073] [Brush drive unit] The brush driving unit 150, under the control of the control unit 100, controls the rotation speed of the brush roller 53 (the amount of rotation per unit time).

[0074] [Second pressure contact / separation section] The second pressure contact / separation unit 160, under the control of the control unit 100, presses the scraping unit 54 against and separates it from the placement surface of the conveyor belt 33. Through this control, the second pressure contact / separation unit 160 controls the amount of cleaning nip formed between the placement surface of the conveyor belt 33 and the scraping unit 54.

[0075] [Pump drive unit] Under the control of control unit 100, pump driving unit 170 changes the driving mode of a pump provided in a flow path that communicates water storage unit 55 and spray unit 52. Through this control, pump driving unit 170 controls the spray pressure (water pressure) of the cleaning liquid by spray unit 52.

[0076] [Notification Department] The notification unit 180 is, for example, a display unit having a screen, or a communication unit capable of communicating with other devices via a network. The notification unit 180, under the control of the control unit 100, notifies the user of various warnings.

[0077] [Regular cleaning process] Next, a description will be given of regular cleaning processing of the conveyor belt 33 by the cleaning unit 5 in the inkjet recording apparatus 1. The regular cleaning processing is executed after completion of the image forming processing by the head unit 4. FIG. 3 is a flowchart of the regular cleaning processing. The regular cleaning processing is realized by cooperation between the control unit 100 and the cleaning unit 5.

[0078] After the image forming process is completed, the control unit 100 judges whether or not the image forming process was set in a way that made it easy for foreign matter to adhere to the conveyor belt 33. Specifically, the control unit 100 first judges whether or not the recording medium P was a thin cloth (step S101). In this embodiment, a thin cloth refers to a cloth with a low density (for example, a density of 300 mg / cm 3 However, since there are also low-density thick fabrics, for example, a fabric with a thickness of 0.2 mm or less can be considered a "thin fabric."

[0079] If the recording medium P is a thin cloth (step S101; Yes), the control unit 100 executes the cleaning mode (step S102). After executing the cleaning mode, the control unit 100 ends the regular cleaning process.

[0080] [Cleaning mode] The cleaning mode executed in step S102 will be described with reference to Fig. 4. As shown in Fig. 4A, the area 33a is defined as the area from a point R1 located on the underside of the upstream end of the image forming area of ​​the recording medium P in the transport direction to a point R2 located on the upstream end of the cleaning unit 5 in the transport direction. If the transport belt 33 is stopped immediately after the head unit 4 finishes discharging ink, the area 33a cannot be cleaned even if foreign matter is attached thereto, and there is a risk that the foreign matter will become stuck on the transport belt 33.

[0081] Therefore, in the cleaning mode, the control unit 100 causes the conveyor belt 33 to continue to be conveyed for a predetermined time (preferably 5 to 30 seconds) after the end of ink ejection. The control unit 100 causes the conveyor belt 33 to stop at a position extended from a normal stopping position through this control. This control allows the cleaning unit 5 to clean the area 33a as shown in FIG. 4B. Note that the stopping position of the conveyor belt 33 in the cleaning mode is preferably a position where at least the upstream end of the area 33a in the conveying direction reaches the cleaning member of the cleaning unit 5. In this way, the entire area 33a can be subjected to the cleaning process of the cleaning unit 5.

[0082] Returning to FIG. 3, if the recording medium P is not a thin cloth (step S101; No), the control unit 100 determines whether the image forming process is borderless printing or not (step S103). If the image forming process is borderless printing (step S103; Yes), the control unit 100 executes the cleaning mode (step S102). After executing the cleaning mode, the control unit 100 ends the regular cleaning process.

[0083] If the image forming process is bordered printing (step S103; No), the control unit 100 determines whether the image forming process is high coverage printing (step S104). In this embodiment, high coverage printing refers to an image forming process with a coverage of, for example, 50% or more.

[0084] If the image forming process is high coverage printing (step S104; Yes), the control unit 100 executes the cleaning mode (step S102). After executing the cleaning mode, the control unit 100 ends the regular cleaning process.

[0085] If the image forming process is not high coverage printing (step S104; No), the control unit 100 stops the conveyor belt 33 (step S105). Then, the control unit 100 determines whether the detection unit 6 has detected a foreign object (step S106).

[0086] If the detector 6 does not detect any foreign matter (step S106; No), no foreign matter is attached to the area 33a, and the controller 100 therefore ends the regular cleaning process without executing the cleaning mode.

[0087] If the detector 6 detects a foreign object (step S106; Yes), the controller 100 prompts the user to execute the cleaning mode via the notification unit 180 (step S107). Then, the controller 100 accepts an instruction from the user to execute the cleaning mode (step S108).

[0088] If an instruction to execute the cleaning mode has not been received from the user (step S108; No), the control unit 100 ends the regular cleaning process without executing the cleaning mode.

[0089] When an instruction to execute the cleaning mode is received from the user (step S108; Yes), the control unit 100 executes the cleaning mode (step S102). After executing the cleaning mode, the control unit 100 ends the regular cleaning process.

[0090] [Irregular cleaning process] Next, a description will be given of the irregular cleaning process of the conveyor belt 33 by the cleaning unit 5 in the inkjet recording apparatus 1. The irregular cleaning process is executed when the conveyor belt 33 stops abnormally. As with the regular cleaning process, the irregular cleaning process is realized by cooperation between the control unit 100 and the cleaning unit 5.

[0091] [When an error occurs] 5 is a flowchart of the irregular cleaning process when the abnormal stop of the conveyor belt 33 is due to the occurrence of an error. First, the control unit 100 determines whether the image forming process before the occurrence of the error satisfies a predetermined condition (step S201). The predetermined condition is whether the setting is such that foreign matter is likely to adhere to the conveyor belt 33, that is, whether at least one of the conditions shown in steps S101, S103, and S104 is satisfied. Therefore, a detailed description will be omitted.

[0092] If the predetermined condition is not satisfied (step S201; No), the control unit 100 determines whether or not the detection unit 6 has detected a foreign object (step S202).

[0093] If the detection unit 6 does not detect any foreign matter (step S202; No), there is no foreign matter adhering to the area 33a, and the control unit 100 ends the irregular cleaning process. That is, the control unit 100 waits until the user clears the error. Then, when the error is cleared, the control unit 100 returns to normal.

[0094] If a predetermined condition is satisfied (step S201; Yes), or if the detection unit 6 detects a foreign object (step S202; Yes), the control unit 100 determines whether or not the cleaning mode can be executed even before the error is cleared (step S203). For example, if the error is a malfunction of the tank or pump, the conveyor belt 33 can be driven, so that the cleaning mode can be executed even before the error is cleared by the user.

[0095] If the cleaning mode can be executed even before the error is released (step S203; Yes), the control unit 100 prompts the user to execute the cleaning mode by the notification unit 180 (step S204). Then, the control unit 100 accepts an instruction to execute the cleaning mode from the user (step S205).

[0096] When the instruction to execute the cleaning mode is received (step S205; Yes), the control unit 100 executes the cleaning mode (step S206). The contents of the cleaning mode are the same as those of step S102 above, so detailed explanations are omitted. After executing the cleaning mode, the control unit 100 stops the conveyor belt 33 again and ends the irregular cleaning process.

[0097] If the cleaning mode cannot be executed before the error is cleared (step S203; No), or if an instruction to execute the cleaning mode has not been received (step S205; No), the control unit 100 waits until the error is cleared.

[0098] The control unit 100 determines whether the error has been removed (step S207). If the error has not been removed (step S207; No), the control unit 100 determines whether a predetermined time has passed since the error state occurred (step S208).

[0099] If the predetermined time has elapsed (step S208; Yes), the control unit 100 recommends the user to manually clean the area 33a via the notification unit 180 (step S209). Then, the control unit 100 ends the irregular cleaning process without executing the cleaning mode. Note that the control unit 100 preferably controls the cleaning unit 5 to execute the cleaning process of the area 33a when recovering from the error.

[0100] If the error is cleared (Step S207; Yes), the control unit 100 receives an instruction from the user as to whether or not to continue the image forming process (Step S210).

[0101] When the instruction to continue the image forming process is received (step S210; Yes), the control unit 100 resumes the image forming process (step S211). In this case, the cleaning unit 5 also performs cleaning on the area 33a by driving the conveyor belt 33 to convey the image. Therefore, the control unit 100 does not execute the cleaning mode.

[0102] When the instruction to continue the image forming process has not been received (step S210; No), the control unit 100 receives an instruction from the user as to whether or not to execute the cleaning mode (step S212).

[0103] If an instruction to execute the cleaning mode is received (step S212; Yes), the control unit 100 executes the cleaning mode (step S213). After executing the cleaning mode, the control unit 100 ends the irregular cleaning process. On the other hand, if an instruction to execute the cleaning mode is not received (step S212; No), the control unit 100 ends the irregular cleaning process without executing the cleaning mode. Note that, if an instruction to execute the cleaning mode is not received, the control unit 100 preferably controls the cleaning unit 5 to execute the cleaning process of the area 33a before the next image forming process is executed.

[0104] [During emergency stop] Next, the irregular cleaning process in the case where the abnormal stop of the conveyor belt 33 is due to an emergency stop will be described with reference to Fig. 6. The emergency stop of the conveyor belt 33 occurs, for example, when the emergency stop button of the inkjet recording apparatus 1 is pressed or when a power outage occurs. Note that, in the following, detailed description of the contents that are substantially the same as the case where the abnormal stop of the conveyor belt 33 is due to the occurrence of an error will be omitted.

[0105] First, the control unit 100 judges whether the image forming process before the emergency stop satisfies a predetermined condition (step S301). If the predetermined condition is not satisfied (step S301; No), the control unit 100 judges whether the detection unit 6 detects a foreign object (step S302). If the detection unit 6 does not detect a foreign object (step S302; No), there is no foreign object attached to the region 33a, so the control unit 100 ends the irregular cleaning process.

[0106] When the predetermined condition is satisfied (step S301; Yes), or when the detection unit 6 detects a foreign object (step S302; Yes), the control unit 100 determines whether the emergency stop state has been released (step S303).

[0107] If the emergency stop state has not been released (step S303; No), the control unit 100 determines whether or not a predetermined time has elapsed since the emergency stop state was established (step S304).

[0108] If the predetermined time has elapsed (step S304; Yes), the control unit 100 recommends the user to perform manual cleaning of the area 33a via the notification unit 180 (step S305). Then, the control unit 100 ends the irregular cleaning process without executing the cleaning mode.

[0109] When the emergency stop state is released (Step S303; Yes), the control unit 100 receives an instruction as to whether or not to continue the image forming process (Step S306).

[0110] When an instruction to continue the image forming process is received (step S306; Yes), the image forming process is resumed (step S307). In this case, the cleaning unit 5 also performs cleaning on the area 33a by driving the conveyor belt 33 to convey the image. Therefore, the control unit 100 does not execute the cleaning mode.

[0111] When the instruction to continue the image forming process has not been received (step S306; No), the control unit 100 receives an instruction as to whether or not to execute the cleaning mode (step S308).

[0112] If an instruction to execute the cleaning mode is received (step S308; Yes), the control unit 100 executes the cleaning mode (step S309). After executing the cleaning mode, the control unit 100 ends the irregular cleaning process. On the other hand, if an instruction to execute the cleaning mode is not received (step S308; No), the control unit 100 ends the irregular cleaning process without executing the cleaning mode. EXAMPLES

[0113] Next, the results of evaluation of preferred configurations by various tests for examples of the present invention and comparative examples will be described. The present invention will be specifically described below using examples, but the present invention is not limited to these.

[0114] [Evaluation of regular cleaning process] [Test 1-1. Belt cleaning and productivity test] An inkjet recording apparatus 1 for ejecting a water-based pigment ink as shown in FIG. 1 is set so as to operate according to the following Example 1 and Comparative Example 1-2.

[0115] Example 1 When a predetermined condition that makes it easy for foreign matter to adhere to the conveyor belt 33 is satisfied, or when the detection unit 6 detects foreign matter, the mode is set to continue and transition to the cleaning mode after the image forming process is completed.

[0116] Comparative Example 1 Regardless of the conditions, the driving of the conveyor belt 33 was set to stop every time the image forming process was completed. Comparative Example 2 Regardless of the conditions, the transport drive is set to continue from the image forming process so that the area 33a reaches the cleaning unit 5 every time the image forming process is completed.

[0117] The inkjet recording apparatuses 1 of Example 1 and Comparative Example 1-2 were caused to carry out the following operations of sets α to γ.

[0118] (Set α) After image formation processing with the settings of thick fabric, bordered, and low coverage, image formation processing was performed with the settings of thin fabric, bordered, and low coverage. (Set β) After image formation processing with the settings of thick fabric, bordered, and low coverage, image formation processing was performed with the settings of thin fabric, borderless, and low coverage. (Set γ) After image formation processing with the settings of thick fabric, bordered, and low coverage, image formation processing was performed with the settings of thin fabric, bordered, and high coverage.

[0119] In this embodiment, "thick cloth" refers to a cloth having a thickness of 0.4 mm or more or a density of 400 mg / cm 3 A "thin fabric" is a fabric with a thickness of 0.2 mm or less, or a density of 300 mg / cm 3 The fabric is as follows.

[0120] Furthermore, "low coverage" is a print density of 1%, and "high coverage" is a print density of 100%. Furthermore, a pretreatment agent ink is applied in advance to the image forming surface of the recording medium P as a flocculating agent.

[0121] After the operations of sets α to γ, the belt cleaning performance and productivity of each inkjet recording apparatus 1 were evaluated. The belt cleaning performance was evaluated by visually checking the conveyor belt 33, and if there was no foreign matter adhering to the mounting surface, it was rated as "G (Good)", and if there was foreign matter adhering to the mounting surface, it was rated as "NG (No Good)". In addition, the productivity was evaluated as "A" when the time required from the start to completion of each set was 3 minutes or less, "C" when it was 10 minutes or more, and "B" otherwise.

[0122] The results of Test 1-1 are shown in Table I.

[0123] [Table 1]

[0124] [evaluation] In Comparative Example 1, the cleaning mode is not executed even when a certain condition that makes it easy for foreign matter to adhere to the conveyor belt 33 is satisfied. Therefore, as shown in Table I, Comparative Example 1 has poor belt cleaning performance compared to Example 1 and Comparative Example 2 in which the cleaning mode is executed. On the other hand, since Comparative Example 1 does not execute the cleaning mode, the next image formation process can be started immediately, and the waiting time can be shortened. However, in Comparative Example 1, an error occurs due to ink adhering to the conveyor belt 33, and the printing time becomes longer. Therefore, compared to Example 1, the overall productivity was not improved.

[0125] In Comparative Example 2, the cleaning mode is executed even if the settings are not such that foreign matter is likely to adhere to the conveyor belt 33. Therefore, as shown in Table I, Comparative Example 2 has excellent belt cleaning performance, but has low productivity compared to Example 1 and Comparative Example 1.

[0126] In contrast to Comparative Examples 1 and 2, Example 1 executes the cleaning mode when the conditions are such that foreign matter is likely to adhere to the conveyor belt 33 or when the detection unit 6 detects foreign matter. Therefore, it is possible to achieve both belt cleaning performance and productivity.

[0127] [Test 1-2. Abrasion test of conveying parts] The inkjet recording apparatuses 1 of Example 1 and Comparative Example 1-2 were made to perform five sets of operations for each of sets α to γ, i.e., a total of 15 sets. After that, the wear of the conveyor belt 33 of each inkjet recording apparatus 1 was evaluated. The wear was evaluated as "G" when there were no scratches on the placement surface, and "NG" when there were scratches on the placement surface.

[0128] The results of Test 1-2 are shown in Table II.

[0129] [Table 2]

[0130] In the inkjet recording device 1 of Comparative Example 1, the cleaning mode is not executed, so ink adheres to the mounting surface. Therefore, the mounting surface is worn when such adhered ink is peeled off. In addition, in the inkjet recording device 1 of Comparative Example 2, the cleaning mode is always executed, so the mounting surface is worn by the cleaning process. On the other hand, in the inkjet recording device 1 of Example 1, when the setting is such that foreign matter easily adheres to the conveyor belt 33 or when the detection unit 6 detects foreign matter, the cleaning mode is executed, so wear on the mounting surface is suppressed.

[0131] [Test 2. Evaluation of irregular cleaning process] [Belt cleaning performance test] An inkjet recording apparatus 1 for ejecting a water-based pigment ink as shown in FIG. 1 is set to operate in accordance with the following Example 2 and Comparative Example 3.

[0132] Example 2 When the inkjet recording apparatus 1 is stopped in an emergency during the image forming process under the above-mentioned predetermined conditions, and the image forming process is terminated when the inkjet recording apparatus 1 is restored from the emergency stop, the notification unit 180 is set to recommend the user to execute the cleaning mode. Also, the control unit 100 is caused to execute the cleaning mode in response to an instruction operation from the user.

[0133] Comparative Example 3 When the inkjet recording apparatus 1 is stopped in an emergency during the image forming process under the above-mentioned predetermined conditions, and the image forming process is terminated when the inkjet recording apparatus 1 is restored from the emergency stop, the control unit 100 is set not to execute the cleaning mode.

[0134] [Evaluation of Belt Cleaning Performance] While the inkjet recording apparatus 1 of Example 2 and Comparative Example 3 were performing an image forming process with thin fabric, bordered, and low coverage, the inkjet recording apparatus 1 was forcibly stopped by pressing the emergency stop button. Then, after one hour, the emergency stop was released and the image forming process was terminated, after which the belt cleanability of each inkjet recording apparatus 1 was evaluated. As in Test 1-1, the belt cleanability was rated as "G" when no foreign matter was attached to the mounting surface, and "NG" when foreign matter was attached to the mounting surface.

[0135] [Image quality evaluation] In addition, one day after the belt cleaning test, image formation was performed using the inkjet recording apparatus 1 of Example 2 and Comparative Example 3, and the image quality was evaluated. The image quality was evaluated as "NG" when there was poor image quality due to fabric lifting, and as "G" when there was no poor image quality.

[0136] The results of Test 2 are shown in Table III.

[0137] [Table 3]

[0138] Comparing Example 2 and Comparative Example 3, if the inkjet recording apparatus 1 undergoes an emergency stop during image formation processing under conditions where foreign matter is likely to adhere, the inkjet recording apparatus 1 has excellent belt cleanability by having the control unit 100 execute the cleaning mode upon recovery. Furthermore, the excellent belt cleanability of the inkjet recording apparatus 1 makes it possible to prevent poor image quality caused by fabric lifting due to foreign matter adhering to the conveyor belt 33.

[0139] [Effects of the embodiment] As described above, the inkjet recording apparatus 1 according to the present embodiment includes a control unit 100 that controls the operation of the conveyor belt 33, which is a conveying member that conveys the recording medium P. The inkjet recording apparatus 1 also includes a head unit 4 that ejects ink containing a binder resin onto the recording medium P on the conveying member. The inkjet recording apparatus 1 also includes a cleaning unit 5 that cleans the conveying member. When an instruction to stop the conveying operation of the conveyor belt 33 is received, the control unit 100 executes a cleaning mode in which the conveyor belt 33 continues to be conveyed and the cleaning unit 5 cleans it. Alternatively, the control unit 100 stops the conveyor belt 33 and issues a warning that foreign matter may be attached to the conveyor belt 33. According to this configuration, the conveyor member to which foreign matter is attached by ink ejection is cleaned by the cleaning unit 5, so that the foreign matter can be prevented from adhering to the conveyor belt 33. Therefore, deterioration of the conveyor belt 33 due to cleaning can be prevented.

[0140] Furthermore, the control unit 100 controls the cleaning unit 5 to transport the sheet to at least the upstream end of the region 33a in the transport direction. With this configuration, the entire region 33a, which may have foreign matter attached thereto, can be subjected to the cleaning process by the cleaning unit 5.

[0141] Furthermore, the control unit 100 executes the cleaning mode when image formation under predetermined conditions is completed and a stop command is issued. With this configuration, the cleaning mode is executed only when cleaning processing is required. This can reduce loss of recording media P and downtime. Furthermore, it can prevent errors from occurring or the conveyor belt 33 from deteriorating when the foreign matter is removed due to the foreign matter being stuck to the conveyor belt 33 if cleaning processing is not executed despite the foreign matter adhering to the conveyor belt 33. Furthermore, since the cleaning processing of the conveyor belt 33 is executed automatically, the user's effort is reduced.

[0142] In addition, the control unit 100 issues a warning after the error stop or emergency stop is released, and executes the cleaning mode in response to a user instruction. With this configuration, even if the conveyor belt 33 stops abnormally, the user can easily take action.

[0143] [Other configurations] Although one embodiment of the present invention has been described above, the scope of the present invention is not limited to the above embodiment. The scope of the present invention includes the scope of the invention described in the claims and its equivalents.

[0144] In addition, for example, in the above, the transport device 3 includes the transport belt 33, and the recording medium P is placed on the transport belt 33 and transported, but the present invention is not limited to this. That is, the transport device 3 may not include the transport belt 33, and may transport the recording medium P in a so-called roll-to-roll manner. In this configuration, the recording medium P is transported while being tensioned by a plurality of transport rollers (for example, the first transport roller 22 and the second transport roller 72). Therefore, the plurality of transport rollers serve as transport members that transport the recording medium P.

[0145] In the above description, the conditions under which foreign matter is likely to adhere to the conveyor belt 33, namely, "thin fabric" and "high coverage," are defined, but are not limited thereto. For example, a fabric having a thickness of 50 denier and made of yarn count of 100 or more may be defined as a "thin fabric."

[0146] Furthermore, the specific numerical settings of "thin cloth" and "high coverage" may be changed as appropriate depending on the configuration of the inkjet recording apparatus 1, the ink to be ejected, etc. Furthermore, the specific numerical settings of "thin cloth" and "high coverage" may be changeable as appropriate by a user's operation instruction. Furthermore, the conditions under which foreign matter is likely to adhere to the conveyor belt 33 are not limited to whether the recording medium P is a thin cloth, borderless printing, or high coverage printing, and may be changed as appropriate.

[0147] In the cleaning mode, the conveyor belt 33 may be conveyed so that the upstream end of the region 33a is cleaned by at least the cleaning member (the water sprinkler unit 52 in FIG. 1) at the downstream end of the cleaning unit 5. In this configuration, the time required for the cleaning mode is shortened. Also, the amount of feeding of the recording medium P is reduced.

[0148] In the above, the conveyor belt 33 is cleaned by continuously driving the conveyor belt 33 after the head unit 4 finishes discharging ink, but the present invention is not limited to this. The conveyor belt 33 may be stopped at the same time as the head unit 4 finishes discharging ink, and the recording medium P may be evacuated, after which the movable cleaning unit 5 may clean the recording medium P.

[0149] In the above, an example in which the ROM 103 is used as a computer-readable medium for the program according to the present invention has been disclosed, but the present invention is not limited to this example. As other computer-readable media, portable recording media such as CD-ROMs can be applied. Furthermore, a carrier wave can be applied as a medium for providing data of the program according to the present invention via a communication line. [Explanation of symbols]

[0150] 100 Control section 180 Notification Department 22 First conveyor roller (conveyor roller) 33 Conveyor belt 33a area 4 Head Unit 5 Cleaning Department 53 Brush Roller 6. Detection section 72 Second conveyor roller (conveyor roller) P Recording medium

Claims

1. A control unit that controls a transport operation of a transport member that transports the recording medium; a head unit that ejects ink containing a binder resin onto the recording medium on the transport member to form an image; a cleaning unit that cleans the conveying member, When the control unit is instructed to stop the transport operation of the transport member, the control unit either executes a cleaning mode in which the transport of the transport member is continued and the cleaning unit cleans the transport member, or stops the transport of the transport member and issues a warning that foreign matter may be attached to the transport member.

2. The inkjet recording apparatus according to claim 1 , wherein the control unit, in the cleaning mode, causes the cleaning unit to transport the transport member so that the area of ​​the transport member located under the recording medium on which the image is formed is cleaned by the cleaning unit.

3. The inkjet recording apparatus according to claim 2 , wherein the control unit, in the cleaning mode, causes the cleaning unit to transport the area at least to an upstream end in the transport direction.

4. The cleaning unit includes a plurality of cleaning members. The inkjet recording apparatus according to claim 3 , wherein the control unit, in the cleaning mode, transports at least one of the plurality of cleaning members until the cleaning member passes the area.

5. The inkjet recording apparatus according to claim 1 , wherein the control unit executes the cleaning mode when image formation under predetermined conditions is completed and the stop is instructed.

6. 6. The inkjet recording apparatus according to claim 5, wherein the predetermined condition is that at least one of the following conditions is satisfied: the recording medium is a thin fabric, borderless printing is performed, or high coverage printing is performed.

7. 6. The inkjet recording apparatus according to claim 5, wherein the predetermined conditions are set by a user.

8. The inkjet recording apparatus according to claim 1 , wherein the control unit issues the warning after an error stop or an emergency stop of the transport member is released, and executes the cleaning mode in response to a user instruction.

9. a detection unit capable of detecting a foreign object on a placement surface of the conveying member, The inkjet recording apparatus according to claim 1 , wherein the control unit issues the warning when the detection unit detects a foreign object.

10. The inkjet recording apparatus according to claim 1 , wherein the transport member is a transport belt.

11. 11. The inkjet recording apparatus according to claim 10, wherein an adhesive is applied to a mounting surface of the transport belt on which the recording medium is placed.

12. The inkjet recording apparatus according to claim 1 , wherein the transport member is a plurality of transport rollers.

13. The inkjet recording apparatus according to claim 1 , wherein the ink is a pigment ink.

14. 10. The ink jet recording apparatus according to claim 1, wherein the binder resin is added in an amount of 5% by mass to 15% by mass with respect to the total amount of the ink.

15. The inkjet recording apparatus according to claim 1 , wherein the cleaning unit includes a brush roller.

16. A computer of an inkjet recording apparatus including a head unit that ejects ink containing a binder resin onto a recording medium on a transport member to form an image, and a cleaning unit that cleans the transport member, functioning as a control unit for controlling the operation of a conveying member that conveys the recording medium; The control unit is a program that, when instructed to stop the transport operation of the transport member, executes a cleaning mode in which the transport of the transport member is continued and the cleaning unit cleans the transport member, or stops the transport of the transport member and issues a warning that foreign matter may be attached to the transport member.

Images