Abstract: An inkjet recording device including a conveyance unit, a carriage, at least one preprocessing head, at least one ink head, and at least one postprocessing head, in which the conveyance unit conveys a recording medium in a prescribed conveyance direction, the carriage reciprocates along a main scanning direction that intersects the conveyance direction, the at least one preprocessing head is on the carriage configured to eject a non-coloring preprocessing solution, the at least one ink head is on the carriage configured to eject an ink, the at least one postprocessing head is on the carriage configured to eject a non-coloring postprocessing solution, and the at least one preprocessing head, the at least one ink head, and the at least one postprocessing head are arranged to be shifted from each other in the conveyance direction.

Abstract: An inkjet recording device includes a conveyance unit, a carriage, one or a plurality of ink heads, a pre-processing head, and a post-processing head. The conveyance unit is configured to convey a recording medium in a conveyance direction. The carriage is configured to reciprocate in a main scanning direction intersecting the conveyance direction. The plurality of ink heads is located on the carriage and each eject an ink. The pre-processing head is arranged upstream of the plurality of ink heads in the conveyance direction and ejects a non-colored pre-processing solution. The post-processing head is arranged downstream of the plurality of ink heads in the conveyance direction and ejects a non-colored post-processing solution. The plurality of ink heads includes a plurality of same-color ink heads arranged to align in the conveyance direction to eject a same-color ink.

Abstract: An inkjet recording device includes a conveyance unit, a carriage, a plurality of ink head lines, a preprocessing head, and a postprocessing head. The preprocessing head ejects a preprocessing solution. The postprocessing head ejects a postprocessing solution. In a case where a head arranged closest to one end in a main scanning direction is defined as a one-end side head, a head arranged closest to the other end is defined as an other-end side head, a distance from the one-end side head to the other-end side head in the main scanning direction is defined as LC, a distance from the one-end side head to the preprocessing head in the main scanning direction is defined as B1, and a distance from the one-end side head to the postprocessing head in the main scanning direction is defined as B2, a relationship of ½?(B1+B2)/LC?3/2 is satisfied.

Abstract: An inkjet recording device includes a conveyance unit, a carriage, one or a plurality of ink head lines, and a processing head. The processing head includes a preprocessing head arranged on an upstream side of the one or plurality of ink head lines in the conveyance direction and configured to eject a non-coloring preprocessing solution. In a case where a head arranged closest to one end in the main scanning direction is defined as a one-end side head, a head arranged closest to the other end is defined as an other-end side head, a distance from the one-end side head to the other-end side head in the main scanning direction is defined as LC, and a distance from the one-end side head to the preprocessing head in the main scanning direction is defined as B1, a relationship of |(B1?LC/2)|/LC?1/4 is satisfied.

Abstract: An inkjet recording device includes a conveyance unit, a carriage, ink heads, and a plurality of processing heads. The conveyance unit conveys a recording medium in a predetermined conveyance direction. The carriage reciprocates in a main scanning direction intersecting the conveyance direction. The ink heads are mounted on the carriage so as to be aligned in the main scanning direction, and eject ink for image formation. The processing heads are mounted on the carriage and eject a non-coloring processing solution. The plurality of processing heads are arranged side by side in the main scanning direction at positions different from the ink head in the conveyance direction.

Abstract: Provided is an inkjet recording apparatus that reduces clogging of nozzles, while at the same time avoid a decrease in productivity of the recording medium, and reduces situations in which the recording medium becomes stained due to the staining of opening portions and splashing due to ink ejected during flushing. A conveyor belt of the inkjet recording apparatus has a plurality of opening portion groups. The control unit determines the pattern of the plurality of opening portion groups used for flushing in one cycle of the conveyor belt according to the size of the recording medium. The control unit causes the recording medium to be supplied from the recording medium supply unit between the plurality of opening groups arranged in the conveying direction in the above pattern on the conveying belt and at positions separated from the opening portion groups by a specific distance or more.

Abstract: Provided is an inkjet recording apparatus that reduces excessive or insufficient flushing of each of the nozzles by appropriately controlling the ink ejection amount in the next flushing for each nozzle based on the actual ink ejection state of each of the nozzles of a recording head during image formation. A control unit causes the recording head to execute flushing for ejecting the ink at a timing different from a timing that contributes to image formation on the recording medium. A conveyor belt has opening portions for allowing ink ejected from each of the nozzles of the recording head during flushing to pass. The control unit controls the ink ejection amount for each of the nozzles during the next flushing based on an integrated printing rate for each of the nozzles after the recording head has performed the previous flushing.

Abstract: Provided is an inkjet recording apparatus that reduces situations in which the recording medium becomes stained during flushing. A conveyor belt of the inkjet recording apparatus has a plurality of opening portion groups in a conveying direction of the recording medium in which opening portions for allowing ink ejected from each of the nozzles of the recording head to pass during the flushing are arranged in a belt width direction perpendicular to the conveying direction of the recording medium. A control unit determines a pattern of a plurality of opening portion groups used in flushing in one cycle of the conveyor belt according to the size of the recording medium, and causes the recording medium to be supplied from a recording medium supply unit between the opening portion groups arranged in the conveying direction in the pattern on the conveyor belt.

Abstract: An ink ejecting device includes: a head that ejects ink from a plurality of nozzles arranged along a Y-axis direction parallel to a direction in which a recording medium is conveyed; an X-axis moving mechanism that moves the head in an X-axis direction orthogonal to the Y-axis direction on the horizontal plane; a control unit that performs scanning in which the head is moved in the X-axis direction and that causes the head to eject ink during the scanning; and a Z-axis moving mechanism that moves the head in a Z-axis direction orthogonal to the Y-axis and X-axis directions.

Abstract: A printing device (100) is provided with: a conveyance device (3) that performs a conveyance operation in which a feeding operation to feed a recording medium (7) and suspension of the feeding operation are repeated; a plate device (2); and an ink ejection device (1). The ink ejection device (1) performs a scan to move a head (8) when the feeding operation is suspended. The conveyance device (3) performs the feeding operation once each time one scan is completed, and is configured to change the amount by which the recording medium (7) is fed by one feeding operation.

Abstract: An ink ejecting device includes: a head that ejects ink from a plurality of nozzles arranged along a Y-axis direction parallel to a direction in which a recording medium is conveyed; an X-axis moving mechanism that moves the head in an X-axis direction orthogonal to the Y-axis direction on the horizontal plane; a control unit that performs scanning in which the head is moved in the X-axis direction and that causes the head to eject ink during the scanning; and a Z-axis moving mechanism that moves the head in a Z-axis direction orthogonal to the Y-axis and X-axis directions.

Abstract: Provided is an inkjet recording apparatus that reduces excessive or insufficient flushing of each of the nozzles by appropriately controlling the ink ejection amount in the next flushing for each nozzle based on the actual ink ejection state of each of the nozzles of a recording head during image formation. A control unit causes the recording head to execute flushing for ejecting the ink at a timing different from a timing that contributes to image formation on the recording medium. A conveyor belt has opening portions for allowing ink ejected from each of the nozzles of the recording head during flushing to pass. The control unit controls the ink ejection amount for each of the nozzles during the next flushing based on an integrated printing rate for each of the nozzles after the recording head has performed the previous flushing.

Abstract: Provided is an inkjet recording apparatus that, regardless of the size of a recording medium, reduces clogging of nozzles by avoiding insufficient flushing, while at the same time avoid a decrease in productivity of the recording medium, and reduces situations in which the recording medium becomes stained due to the staining of opening portions due to ink ejected during flushing. A conveyor belt of the inkjet recording apparatus has a plurality of opening portion groups in a conveying direction of the recording medium in which opening portions for allowing ink ejected from each of the nozzles of the recording head to pass during the flushing are arranged in a belt width direction perpendicular to the conveying direction of the recording medium.

Abstract: Provided is an inkjet recording apparatus that reduces clogging of nozzles, while at the same time avoid a decrease in productivity of the recording medium, and reduces situations in which the recording medium becomes stained due to the staining of opening portions and splashing due to ink ejected during flushing. A conveyor belt of the inkjet recording apparatus has a plurality of opening portion groups. The control unit determines the pattern of the plurality of opening portion groups used for flushing in one cycle of the conveyor belt according to the size of the recording medium. The control unit causes the recording medium to be supplied from the recording medium supply unit between the plurality of opening groups arranged in the conveying direction in the above pattern on the conveying belt and at positions separated from the opening portion groups by a specific distance or more.

Abstract: The head (8) of an ink discharge device (1) discharges ink into a recording medium being conveyed. A movement unit (12) moves the head (8) in the height direction (Z-axis direction) when the printing surface of the recording medium is set as the front surface. A controller (10) sets a discharge time gap, which is the gap between the nozzle (81) and the printing surface during ink discharge, in accordance with the image to be printed and the recording medium. The controller (10) causes the movement unit (12) to move the head in the Z-axis direction so as to reach the set discharge interval.

Abstract: A liquid supply unit includes a first chamber, a second chamber, an opening/closing member, a biasing member, a pressing member and a flexible film member. The first chamber communicates with a liquid storage container, and the second chamber communicates with a liquid injection head. The opening/closing member changes a posture between a closing posture for closing a communication opening and an opening posture for opening it. The biasing member biases the opening/closing member in a direction toward the closing posture. The pressing member presses the opening/closing member in a direction toward the opening posture. The flexible film member is displaced based on a negative pressure generated in the second chamber. When a pressure receiving portion of the pressing member receives the displacement force from the flexible film member, the pressing member rotates about a pivot point and presses the opening/closing member against a biasing force of the biasing member.

Abstract: A liquid supply unit includes a first chamber, a second chamber, a wall portion, an opening/closing member, a flexible film member and a transmitting member. The wall portion includes a communication opening allowing communication between the first chamber and the second chamber. The opening/closing member changes a posture between a closing posture for closing the communication opening from the second chamber side and an opening posture. The flexible film member is displaced based on a pressure change of the second chamber. The transmitting member transmits a displacement force to the opening/closing member to be the opening posture when the second chamber is set to a negative pressure exceeding a predetermined threshold value, and transmits the displacement force to the opening/closing member to be the closing posture according to a displacement of the flexible film member when the second chamber is pressurized.

Abstract: An ink ejecting device includes: a head that ejects ink from a plurality of nozzles arranged along a Y-axis direction parallel to a direction in which a recording medium is conveyed; an X-axis moving mechanism that moves the head in an X-axis direction orthogonal to the Y-axis direction on the horizontal plane; a control unit that performs scanning in which the head is moved in the X-axis direction and that causes the head to eject ink during the scanning; and a Z-axis moving mechanism that moves the head in a Z-axis direction orthogonal to the Y-axis and X-axis directions.

Abstract: An image forming apparatus includes a main body, a post-printing processing device, and a paper exit part. The main body forms an image on paper. The post-printing processing device is located above the main body and performs post-printing processing on paper. The paper exit part is located on a side surface of the post-printing processing device. Paper is ejected to the paper exit part. The post-printing processing device includes a paper inlet port and a conveyance device. The paper inlet port is located in a rear part of a lower surface of the post-printing processing device. The conveyance device conveys paper conveyed via the paper inlet port into the post-printing processing device in a forward direction thereof to a paper loading tray and conveys the paper therefrom leftward to eject the paper to the paper exit part located on the left side of the post-printing processing device.

Abstract: A liquid supply unit includes a first chamber, a second chamber, an opening/closing member, a biasing member, a pressing member and a flexible film member. The first chamber communicates with a liquid storage container, and the second chamber communicates with a liquid injection head. The opening/closing member changes a posture between a closing posture for closing a communication opening and an opening posture for opening it. The biasing member biases the opening/closing member in a direction toward the closing posture. The pressing member presses the opening/closing member in a direction toward the opening posture. The flexible film member is displaced based on a negative pressure generated in the second chamber. When a pressure receiving portion of the pressing member receives the displacement force from the flexible film member, the pressing member rotates about a pivot point and presses the opening/closing member against a biasing force of the biasing member.