Abstract: An inkjet recording device includes a conveying unit, a recording unit, a device main body, and a control unit. The conveying unit includes an endless conveyor belt having many air holes for sucking air, and a sheet sucking unit. The sheet sucking unit is disposed inside a loop of the conveyor belt, and includes a fan for sucking air through the air holes and a fan drive motor. The recording unit includes a recording head disposed to face an outer circumference surface of the conveyor belt, so as to eject ink from ink ejection nozzles to the paper sheet sucked and held on the conveyor belt. The control unit executes a paper dust removing mode during image non-recording time, in which it rotates the fan drive motor by a power higher than that when conveying the paper sheet, so as to remove paper dust in the device main body.

Abstract: A liquid ejecting head with a sealing member includes: a liquid ejecting head including a liquid ejecting surface configured to eject ink; a fixing member configured to be attachable to and detachable from the liquid ejecting head; and a sealing member configured to seal the liquid ejecting head and the fixing member. When the liquid ejecting head to which the fixing member is joined is mounted on a cover, the sealing member seals the liquid ejecting head and the cover.

Abstract: A printing unit includes: three elongate printheads positioned in a staggered overlapping arrangement for spanning across a media feed path, wherein a first printhead and a second printhead are longitudinally spaced apart and positioned in a row across the media feed path and a third printhead is offset from and overlaps with both the first and second printheads; three wipers for longitudinally wiping respective printheads in a direction perpendicular to a media feed direction, each wiper being parked at one longitudinal end of its respective printhead. One of the wipers, in its parked position, is positioned in a space between the first and second printheads.

Abstract: A single pass inkjet printer that utilizes a modular printing system with one or more self-contained printing modules, where each printing module is easy to remove and replace from a large printing machine, thus resulting in an overall system that is easy to service and maintain. Each module is a self-contained printer including an ink supply, printhead drive electronics, and printhead assembly in order to provide one color or fluid of inkjet printing capability. Each module includes a precise three-point compliant self-aligning mount system to obtain accurate printhead positioning, and a unique integrated printhead tending system that includes a compact movable vacuum knife for cleaning the printheads, and a printhead capping station for sealing and protecting the printheads from the ambient environment when not in use.

Abstract: An ink-jet printer includes: a base material transport mechanism for transporting a base material along a transport path in a transport direction; an ink ejection head having a lower surface opposed to the transport path, and an ink ejection port for ejecting ink toward the transport path; and a base plate having a lower surface opposed to the transport path over the transport path, and a mounting hole open in the lower surface, the ink ejection head being mounted in the mounting hole. The base plate includes an air flow hole that is a though hole penetrating through the base plate. The air flow hole has an air outlet open in a location downstream of the ink ejection port in the lower surface. Air passing through the air flow hole is ejected from the air outlet toward the transport path.

Abstract: An object is to provide a liquid ejection apparatus and a method of controlling a liquid ejection apparatus capable of preventing bubbles generated by kogation removal from interfering with the kogation removal. To this end, in a long liquid ejection head with a liquid circulated therethough, a pressure chamber is pressurized and a voltage is applied to a heat applying portion and an electrode to perform kogation removing cleaning.

Abstract: A liquid ejecting apparatus includes an attachment section to which a liquid storage container having a storage chamber storing a liquid and a communication path communicating with the storage chamber is attached, and a liquid ejecting head configured to eject the liquid from nozzles. The attachment section includes an inlet through which the liquid from the attached liquid storage container flows, a protrusion having a connection port, a seal provided around the protrusion, and an air communication path communicating with the connection port and an air communication port that communicates with the air. The connection port enters the communication path of the attached liquid storage container, and the seal comes into contact with the liquid storage container attached to the attachment section.

Abstract: A method of capping printheads positioned along a curved media path having an apex. The method includes the steps of: providing a first printhead upstream of the apex and a corresponding first capper downstream of the first printhead; providing a second printhead downstream of the apex and a corresponding second capper upstream of the second printhead; moving the first capper towards the first printhead and capping the first printhead; and moving the second capper towards the second printhead and capping the second printhead. The first and second cappers are moved in opposite directions away from the apex for capping the first and second printheads.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects liquid and an attachment portion to which a liquid container that stores the liquid supplied to the liquid ejecting head is detachably attached. The attachment portion includes a liquid inlet portion that is coupled to a liquid outlet provided in the liquid container, and an urging mechanism that urges the liquid container in a direction opposite to an attaching direction in which the liquid container is attached to the attachment portion. The urging mechanism includes an elastic member that is in close contact with the liquid container attached to the attachment portion and that is provided below the liquid inlet portion in a direction of gravity.

Abstract: In one example, a liquid delivery system for an inkjet type dispenser includes: a printhead unit; a reservoir separate from the printhead unit; a flow path from the reservoir through the printhead unit and back to the reservoir; an interconnect to connect a removable liquid container to the flow path; and a single pump to pump ink along the flow path: from the reservoir through the printhead unit and back to the reservoir; and from the interconnect to the reservoir when a removable liquid container is connected to the interconnect.

Abstract: A liquid ejecting apparatus includes a print head including a drive element; a first circuit substrate electrically coupled to the print head; a second circuit substrate electrically coupled to the first circuit substrate; and a fixing portion that fixes the second circuit substrate to the first circuit substrate, wherein the first circuit substrate includes a coupling terminal electrically coupled to the print head, and a first substrate on which the coupling terminal is provided, wherein the second circuit substrate includes a drive signal output circuit that outputs a drive signal for driving the drive element and a second substrate on which the drive signal output circuit is provided, and wherein the fixing portion also serves as a output terminal through which the drive signal is output to the first circuit substrate.

Abstract: A liquid ejecting apparatus including: a liquid ejecting portion configured to eject a liquid from a nozzle disposed in a nozzle surface; a wiping mechanism configured to perform a wiping operation of wiping the nozzle surface by moving a strip-shaped member configured to absorb the liquid relative to the nozzle surface in a state in which the strip-shaped member is in contact with the nozzle surface; and a control portion configured to perform a pre-wiping operation of moving the strip-shaped member relative to the nozzle surface at a speed higher than a speed for the relative movement during the wiping operation in a state in which the strip-shaped member is not in contact with the nozzle surface and is configured to be brought into contact with the liquid adhering to the nozzle surface, prior to the wiping operation of wiping the nozzle surface with the strip-shaped member.

Abstract: A liquid discharge apparatus includes a liquid discharge head configured to discharge a liquid to a medium, a heater configured to heat the liquid in the liquid discharge head, and circuitry configured to cause the heater to heat the liquid in the liquid discharge head, cause the liquid discharge head to discharge the liquid heated by the heater to the medium as a discharge operation, cause the liquid discharge head to discharge the liquid heated by the heater to a portion other than the medium as a dummy discharge operation after the discharge operation, and cause the heater to stop heating the liquid in the liquid discharge head after the dummy discharge operation.

Abstract: According to one embodiment, a liquid dispensing apparatus includes a mounting unit configured to hold a liquid discharging apparatus that discharges liquid from nozzles simultaneously by an operation of an actuator. An inspection media placement region is provided on which an inspection medium can be placed to receive the liquid discharged from the liquid discharging apparatus. A controller is configured to control the actuator to vary a volume of the liquid discharged from each nozzle for a nozzle inspection operation. The volume is varied according to a predetermined distance between adjacent nozzles that simultaneously discharge liquid and a predetermined contact angle for a droplet of the liquid when on the inspection medium.

Abstract: An inkjet printing device and an operation method of the inkjet printing device are provided. The inkjet printing device includes a printing sprayer head, the printing sprayer head includes a nozzle and a cleaner component, the cleaner device includes a cleaner and a vacuum system, the cleaner is configured to be communicated with the nozzle, and the cleaner is communicated with the vacuum system.

Abstract: A liquid ejecting apparatus includes a liquid ejection head that ejects a liquid, a liquid supply flow path including a liquid storage unit that stores the liquid, a supply pump sending the liquid from the liquid storage unit to the liquid ejection head, a coupling flow path coupling a first supply coupling portion and a second supply coupling portion in the liquid supply flow path, a branch flow path coupling a third supply coupling portion provided in the coupling flow path and the liquid storage unit, an opening/closing valve provided in the branch flow path, where the opening/closing valve is configured to open/close the branch flow path, and a controller, wherein the controller fills the coupling flow path and the branch flow path with the liquid with a combination of a drive of the supply pump and an opening/closing operation of the opening/closing valve.

Abstract: A fluid ejection device includes a fluid ejection assembly including a fluid ejection die, and a service assembly to be rotated to different positions relative to the fluid ejection assembly for different service operations of the fluid ejection die.

Abstract: A method of operating an electrostatic ink jet printhead, the printhead comprising: one or more ejection tips from which, in use, ink is ejected, the one or more ejection tips defining a tip region; a printhead housing, the printhead housing defining a cavity in which the one or more ejection tips are located; the method comprising the steps of, during a printing operation, passing a vapour into the cavity to reduce evaporation of ink in the tip region.

Abstract: An image forming apparatus includes: a line head including multiple ink jet nozzles arrayed in a line direction; a storage device; and a controller circuit configured to determine an image width, the image width being a width of an image to be formed in the line direction, mandatorily eject ink from an ink jet nozzle group before forming the image, the ink jet nozzle group including multiple ink jet nozzles used to form the image having the image width out of the multiple ink jet nozzles, and store the image width in the storage device as a mandatory ejection width.

Abstract: A wiping device includes a wiping member configured to wipe a nozzle forming surface of a liquid discharging head that discharges a liquid from a nozzle, the wiping member having a first layer configured to be brought into contact with the nozzle forming surface and at least one more layer, and a cleaning liquid that is applied to the nozzle forming surface, the cleaning liquid containing a compound represented by the following Chemical formula 1 and a glycol ether compound, where R1 represents an alkyl group having one to four carbon atoms.

Abstract: A liquid ejection apparatus, an ejection control method, and a liquid ejection head are capable of suppressing shortening of the life of the liquid ejection head and maintaining stable ejection operation. For this purpose, voltage is applied to upper electrodes and counter electrodes so as to make the voltage at the upper electrodes lower than the voltage at the counter electrodes before heat generating resistive elements are driven, and voltage is applied to the upper electrodes and the counter electrodes so as to make the voltage at the upper electrodes higher than the voltage at the counter electrodes at the same time as or after the start of driving of the heat generating resistive elements.

Abstract: The relay conveyance apparatus includes a casing, an opening, a cover, a conveyance guide, a protruding part and a cooling mechanism. The casing has an inner space in which a relay conveyance path is formed. The opening is formed in the casing. The protruding part is provided in the cover. When the conveyance guide is switched to a path formation position, the protruding part is inserted into the inner space of the casing to allow closing of the cover, and when the conveyance guide is switched to a path opening position, the protruding part interferes with the conveyance guide to restrict the closing of the cover. The cooling mechanism includes a main duct, a fan and an air blowing port. The air blowing port is provided in the protruding part, and through which the cooling air is blown from the main duct to the relay conveyance path.

Abstract: Systems, methods, software for adaptive flushing. In one embodiment, an adaptive flushing system obtains bit plane data from a plurality of bit planes, and arranges the bit plane data into one or more pixel blocks. For a pixel block, the adaptive flushing system identifies a flush record for the pixel block that indicates a flush eligibility status for each of the pixels in the pixel block, and updates the flush record to indicate the flush eligibility status as flush-ineligible for each of the pixels in the pixel block having a jetting symbol specified in the bit planes. The adaptive flushing system selects a candidate pixel(s) from the pixel block as a candidate for flushing, and modifies the bit plane data in one or more of the bit planes to include a flush symbol at the candidate pixel when the candidate pixel has a flush eligibility status that is flush eligible.

Abstract: A problem to be solved is to allow adhered substances to be removed from a bead. An apparatus (1) tor discharging liquid, the apparatus (1) comprising: a liquid discharge head (122) to discharge liquid; a holder (111) to hold a liquid application target (400) to which the liquid is applied; and a cleaner (601) to clean the liquid discharge head (122), wherein the cleaner (601) is detachably attached to the holder (111), and wherein, with the cleaner (601) attached to the holder (111) being in contact with the liquid discharge head (122), the holder (111) and the liquid discharge head (122) are relatively moved to clean the liquid discharge head (122) with the cleaner (601).

Abstract: A check valve for preventing reverse flow of jettable material within a jettable material firing chamber during a firing event includes a free-floating plug. The check valve further includes at least one holding post, wherein the free-floating plug is arranged between at least one wall of the firing chamber and the holding posts, the at least one wall and the holding posts restricting the movement of the free-floating plug within the chamber.

Abstract: A liquid ejecting apparatus includes: a rotary member that rotates in a rotational direction; a first head unit that is disposed along a circumferential surface of the rotary member and ejects a first liquid; and a second head unit that ejects a second liquid whose property of attacking an organic material is stronger than the first liquid, in which an angle which an ejection surface of the second head unit forms with a horizontal plane is smaller than an angle which an ejection surface of the first head unit forms with the horizontal plane.

Abstract: The printing apparatus comprises: a print head having an ejection opening surface on which an ejection opening configured to eject ink is formed; a holder member that holds the print head; a moving unit configured to move the holder member; a fixing member that fixes the holder member; a detecting unit configured to detect a moving distance of the holder member; and a first determining part configured to determine that the holder member is fixed by the fixing member in a case where the moving distance detected by the detecting unit is less than a predetermined value.

Abstract: A printer includes: a convexly curved media path for feeding print media along a media feed direction, the curved media path having an apex, a first section upstream of the apex and a second section downstream of the apex; a plurality of printheads radially arranged around the curved media path, the plurality of printheads including a first printhead positioned for printing onto the first section and a second printhead positioned for printing onto the second section; a plurality of cappers for capping the plurality of printheads, each capper being positioned at one longitudinal side of a respective printhead and each capper being laterally moveable between capped and uncapped positions; and a lift mechanism for lifting and lowering the printheads. A first capper is positioned downstream of the first printhead and a second capper is positioned upstream of the second printhead in respective uncapped positions.

Abstract: According to one embodiment, an information management system includes a storage device and a control unit. The storage device is provided in a management server communicatively connected to an image forming apparatus to which a cartridge having a consumable item is detachably attached, via a network, and stores information on the consumable item or the cartridge. The control unit limits a predetermined function related to image formation of the image forming apparatus when, based on identification information indicating the cartridge stored in a cartridge storage device provided in the cartridge attached to the image forming apparatus, information on the consumable item or the cartridge is acquired from the storage device, and the acquired information satisfies a predetermined condition indicating that the cartridge is not a genuine cartridge.

Abstract: An objective of the present invention is to provide an inkjet printing apparatus and an ink filling method capable of restraining a decrease in its availability. For that purpose, in a case where a predetermined negative pressure (determination pressure) is not reached within a predetermined time (determination time) in normal filling operation (first filling operation), it is assumed that a leakage occurs in a cap member, and second filling operation is performed.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects a liquid accommodated in a liquid container, a detection unit that detects a remaining amount of the liquid accommodated in the liquid container, and a control unit that operates in a normal mode and a special mode. In the normal mode, the control unit prohibits ejection of the liquid from the liquid ejecting head when the detection unit has detected that the remaining amount of the liquid accommodated in the liquid container has become smaller than a predetermined threshold value. In the second mode, the control unit allows ejection of the liquid from the liquid ejecting head with an instruction from a user as a requirement when the detection unit has detected that the remaining amount of the liquid accommodated in the liquid container has become smaller than the predetermined threshold value.

Abstract: An inkjet recording apparatus allows for cleaning. The inkjet recording apparatus includes an image forming section and a controller. The image forming section has a plurality of nozzles and forms an image on a recording medium by ejecting ink from the nozzles. The controller controls the image forming section. The nozzles eject the ink during the cleaning. The controller includes a determining section, and an adjusting section. The determining section determines whether or not the ink has been ejected from the nozzles. The adjusting section adjusts an ejection amount of the ink in a stepwise manner based on a determination result by the determining section.

Abstract: A liquid ejecting apparatus carries out preliminary discharging in which the liquid is discharged from nozzle rows toward a cap. In preliminary discharging, the liquid ejecting apparatus intermittently carries out concurrent discharging and concurrent non-discharging from the nozzles in the first nozzle row and the second nozzle row in such a way that when concurrent discharging is performed from the nozzles in the first nozzle row, concurrent non-discharging from the nozzles in the second nozzle row is performed, and when concurrent discharging is performed from the nozzles in the second nozzle row, concurrent non-discharging from the nozzles in the first nozzle row is performed.

Abstract: A capping station is configured for storing a printhead during printer inactivity to restore and preserve the operational status of the nozzles in the printhead. Each capping station has a receptacle having at least one wall and a floor configured to enclose a volume partially, and a sealing member mounted to an upper surface of the at least one wall of the receptacle so the sealing member extends away from the upper surface of the at least one wall. The sealing member has a surface that slopes toward the volume within the receptacle to direct fluid on the sloping surface of the sealing member into the volume within the receptacle.

Abstract: Example implementations relate to low voltage bias of nozzle sensors. For example, a fluid ejection die according to the present disclosure may include a plurality of nozzles, and each nozzle may include a nozzle sensor and a fluid ejector, among other components. The fluid ejection die may also include a voltage reduction device to maintain a low voltage bias on the plurality of nozzle sensors during an operation of the plurality of nozzles. A plurality of sense circuits may be electrically coupled to a respective nozzle sensor among the plurality of nozzle sensors, and each sense circuit may evaluate a status of the respective nozzle after the operation.

Abstract: An object of the present invention is to provide an ink jet printing apparatus whose compactness is improved. The ink jet printing apparatus includes: a print head; an ink tank for each ink color; an ink flow path plate for each ink color having a supply flow path that guides the ink supplied from the ink tank to the print head and a recovery flow path that guides the ink recovered from the print head to the ink tank; a flow path concentration plate in which the supply flow path and the recovery flow path for each ink color are concentrated and which guides the ink between the ink flow path plate and the print head; and one or a plurality of function parts provided within a range of a space demarcated by the ink flow path plate and the flow path concentration plate.

Abstract: An inkjet printing system includes an printhead with a nozzle face having nozzles arranged along an array direction. A pressure source is configured to provide a positive or negative pressure to an ink source. A valve is fluidically connected between the ink source and the inkjet printhead. A cleaning station is configured to confront the nozzle face across a gap. The cleaning station includes a cleaning fluid dispenser for dispensing cleaning fluid onto the nozzle face. The cleaning station includes a waste fluid collector having a vacuum inlet that is displaced from the cleaning fluid dispenser in a first direction for collecting dispensed cleaning fluid. The cleaning station includes a blower that is displaced from the cleaning fluid dispenser in a second direction opposite to the first direction. The blower is configured to direct a gas stream along the nozzle face to move dispensed cleaning fluid toward the vacuum inlet.

Abstract: On a conveyance path of a liquid absorbing member including a porous body, a liquid absorbing unit 2 that absorbs a first liquid from a first image, a recovery liquid applying unit 3 that applies a recovery liquid to the porous body absorbing the liquid and a liquid collecting unit 4 that collects a liquid component absorbed by the porous body are arranged in this order, and a cleaning unit 5 that brings a cleaning member into contact with the conveyance path of the porous body is disposed at least between the liquid absorbing unit and the recovery liquid applying unit or between the liquid collecting unit and the liquid absorbing unit.

Abstract: A cap device is designed to form a space surrounding an opening of a nozzle of a liquid ejecting head when the cap device is in contact with the liquid ejecting head including the nozzle for ejecting a liquid, and includes a moisturizing chamber to which a moisturizing fluid for moisturizing the above space is supplied, and a partition wall having gas permeability and configured to partition the space and the moisturizing chamber, where part of the partition wall is formed of a flexible portion.

Abstract: A liquid ejecting apparatus includes: an ejection portion that ejects liquid onto a medium; a waste liquid container having a container that is configured to store a waste liquid discharged from the ejection portion; a housing that houses the ejection portion; and a humidity adjustment portion that adjusts humidity inside the housing. The waste liquid container is configured to store moisture discharged from the humidity adjustment portion.

Abstract: An ink delivery system of an inkjet printer selectively injects flushing fluid into a supply tube for ink into a printhead to form a mixture of flushing fluid and ink prior to a period of inactivity for the printhead. The ratio of the flushing fluid to the ink is determined by a controller using environmental conditions, ink characteristics, and a duration for the period of inactivity.

Abstract: A printing apparatus provided with a carriage provided with a mounting unit which can be mounted with a cartridge in which ink is accommodated and a printing head, an ink tank which stores ink, and a control unit which controls ejecting of ink using the printing head, in which, in a case in which the control unit obtains information for blocking ejecting of ink corresponding to the mounting unit, ejecting of ink, by the printing head, corresponding to the mounting unit is blocked.

Abstract: A layer-by-layer three dimensional printing technique for printing on outer surfaces of a plurality of substrate elements passing through a printing route/zone while being rotated thereinside about a printing axis. At least one array of printing head units is used to define at least one printing route along the printing axis, where the at least one printing route is a substantially linear segment of a closed loop lane along which the objects are progressing. The print head units being configured for movement along radial axes, or one or more axes substantially perpendicular, to the printing axis, to allow layer-by-layer printing of said three-dimensional objects over said substrate elements while being rotated in said printing route.

Abstract: According to one embodiment, a maintenance apparatus includes a first suction nozzle having a first suction port facing a first nozzle row through which a first liquid can be ejected, the first nozzle row including nozzles aligned in a first direction on a nozzle plate, and a second suction nozzle having a second suction port facing a second nozzle row through which a second liquid can be ejected, the second nozzle row including nozzles aligned in the first direction on the nozzle plate and parallel to the first nozzle row.

Abstract: A media sheet drive has a continuous belt of a dielectric material for transporting sheet media supported on the belt in a transport direction. A launch mechanism is used to launch a sheet medium onto a top surface of the belt. A charging circuit including a charging roller is used to charge a top surface of the sheet medium and the belt as the sheet medium is launched. Charging acts to generate an electrostatic tacking force to tack the sheet medium to the belt. The charging roller has a second function to smooth out curled edges of paper as it is acted on by the charging circuit so that the full extent of a launched sheet medium may be subject to the electrostatic tacking force.

Abstract: There is provided a liquid discharge apparatus including: a liquid discharge head having a nozzle; a carriage; a tank; a first connection channel connecting the liquid discharge head and the tank; and a second connection channel connecting the liquid discharge head and the tank and communicating with the first connection channel via the liquid discharge head. The first connection channel has a first channel portion moving in a scanning direction of the carriage together with the carriage and a first damper provided closer to the nozzle than the first channel portion. The second connection channel has a second channel portion moving in the scanning direction together with the carriage and a second damper provided closer to the nozzle than the second channel portion. The first damper is different in compliance from the second damper.

Abstract: A liquid ejecting apparatus includes a liquid ejecting portion that has a nozzle and an opening surface in which the nozzle opens and that ejects a liquid from the nozzle toward a medium that is transported along a transport path, a wiper member that wipes the liquid ejecting portion while moving, a guide that guides movement of the wiper member, and a cap that has an opening portion and that is movable between a capping position at which the cap contacts the liquid ejecting portion so that the opening portion surrounds the nozzle and an open position at which the cap is apart from the liquid ejecting portion. When the cap is at the open position vertically below the guide, the opening portion is at least partially covered by the guide.

Abstract: A printing apparatus includes a transfer member, a print unit configured to form an ink image on the transfer member, a transfer unit configured to perform a transfer operation, and a liquid absorption unit configured to absorb a liquid component from the ink image on the transfer member before the transfer operation. The liquid absorption unit includes a liquid absorbing sheet, a driving unit configured to move the sheet cyclically, a displacing unit configured to displace the 1 sheet between a contact state in which the liquid absorbing sheet contacts the transfer member and a retracted state, and a recovery unit configured to perform a recovery operation of recovering liquid absorption performance of the sheet. The recovery operation is performed by the recovery unit while moving the sheet cyclically by the driving unit when the sheet is in the retracted state.

Abstract: A solid-state imaging device having a pixel portion in which a plurality of pixels each including a photodiode are arranged in rows and columns, a reading part for reading pixel signals from the pixel portion, and a key generation part which generates a unique key by using, as the key generation-use data, at least one of fluctuation information of pixels and fluctuation information of the reading part, wherein the key generation part includes a tamper resistance enhancement processing part for processing the key generation-use data to enhance the tamper resistance making it difficult to break the unique key as tamper resistance enhancement processing. Due to this, it is possible to generate a unique key having a high confidentiality. Further, it is possible to improve reproducibility and uniqueness of the unique ID, is possible to secure a high tamper resistance of the unique key, and consequently is possible to reliably prevent tampering and forgery of an image.

Abstract: In ejecting ink from unused ink ejection ports or ink ejection ports not used frequently onto a can body to suppress ink clogging, the ink clogging is suppressed while degradation in the quality of an image to be formed on the can body is suppressed. On the surface of a can main body 110, a main image MG, which is a main image, and a strip-shaped image OG, which is a sub-image, are formed. The strip-shaped image OG is formed using ink ejection ports not used at forming the main image MG or low-frequency ink ejection ports not ejecting ink frequently. Thus, ink clogging hardly occurs in an ink jet head.