A posture adjusting apparatus includes: an ink ejector that has a detachable inkjet head that ejects ink; and a posture adjuster for adjusting a posture of the ink ejector. The ink ejector includes a head fixing member to/from which the inkjet head is attached and detached, and is movable between a first position where an image is formed on a recording medium by the inkjet head and a second position where the inkjet head is attached and detached, and the posture adjuster allows adjustment of an angle of the head fixing member in the second position.

Images with high image quality having less time-difference unevenness are outputted in an inkjet printing apparatus that performs multi-pass printing using full-line inkjet print heads 2. For this purpose, a CPU is capable of setting a first printing method in which an image for a unit area is printed by a specified number of printing conveyance operations and a second printing method in which an image for a unit area is printed by a smaller number than the specified number of printing conveyance operations. The CPU sets conveyance conditions such that a taken time for one printing conveyance operation of the printing conveyance operations for a unit area in the second printing method is smaller than a taken time for one successive printing conveyance operation of the printing conveyance operations for a unit area in the first printing method.

A liquid jetting apparatus includes a recording head unit including nozzles; a moving mechanism configured to alternately perform a scanning operation of moving the recording head unit in a scanning direction while causing the recording head unit to discharge a liquid and a sub-scanning movement operation of moving the recording head unit or the recording medium in a sub-scanning direction without causing the recording head unit to discharge the liquid; a gradation setting unit configured to set gradation on portions of image data corresponding to setting regions at ends of the recording head unit; an irregular pattern setting unit configured to set an irregular pattern on the image data to randomize a dot ratio indicating the number of dots per unit area; and a head discharge drive unit configured to cause the nozzles to discharge the liquid based on the image data.

An inkjet printing apparatus adopting short pulse heating is designed to output a uniform image without unevenness. To this end, in a serial inkjet printing apparatus, a print head is subjected to a short pulse heating treatment before each print scan is carried out. In a case where a print medium is a first print medium, the print head is heated to a first target temperature before carrying out each of the print scans. In a case where the print medium is a second print medium, the print head is heated to a second target temperature lower than the first target temperature before carrying out each of the print scans.

A slide member slides in conjunction with reciprocation of a carriage. The slide member slides between a first position and a second position to cause a switch gear to move between a plurality of slide positions at which the switch gear engages respective ones of a plurality of transmission gears. The slide member at the second position is closer to a first end of a shaft than the slide member at the first position is. A first cover covers a first sliding contact portion of the shaft over an entire range of the first sliding contact portion in a main scanning direction. The slide member is in sliding contact with the first sliding contact portion when the slide member slides between the first position and the second position. The first sliding contact portion is closer to the first end than the slide member located at the first position is.

A liquid discharge apparatus includes: a discharge head including nozzles; a head scanning mechanism that reciprocatingly moves the discharge head in a main scanning direction; a conveyer that conveys a recording medium in a sub-scanning direction; and a controller. In one pass, the controller executes: recording processing in which an image is formed on the recording medium by moving the discharge head in the main scanning direction and discharging liquid from the discharge head; setting processing in which the discharge head moves to a starting position of the recording processing for a subsequent pass following the one pass by changing a moving direction of the discharge head at a standstill position; and conveyance processing in which the recording medium is conveyed in the sub-scanning direction.

An application device and an application method are disclosed which enable a three-dimensional applying and drawing process to be performed without provision of any rotary mechanism on a discharge head. The application device comprises a discharge head that includes a discharge device having a discharge port opened in a Z direction, a stage that holds a workpiece, a set of XYZ relatively-moving devices that moves the discharge head and the stage relative to each other, an R-axis rotation device that rotates the stage about an R-axis parallel to an XY plane, a P-axis rotation device that rotates the stage about a P-axis parallel to the XY plane, the P-axis extending in a different direction from the R-axis, a control device, and a stand, wherein the P-axis rotation device is disposed under the R-axis rotation device, and the P-axis rotation device rotates the stage and the R-axis rotation device together.

A head device includes a head and a holder. The head has a discharge port to discharge droplets to a medium. The holder is configured to hold the head and be rotatable about a first rotation shaft extending in a discharge direction of the droplets and rotatable about a second rotation shaft extending in a longitudinal direction of the head.

A liquid container includes a first liquid accommodating chamber 31, a filter 50, a filter chamber 42 in which the filter is disposed, and a partition wall 47 that divides the first liquid accommodating chamber and the filter chamber. The filter chamber is disposed on the Z side of the first liquid accommodating chamber, which is vertically below the first liquid accommodating chamber. The partition wall has a flow-out path 51, which has an outlet 106 covered by the filter and through which the liquid having passed through the filter flows to the liquid ejecting head, a first communication path 48 having a first communication port 111, and a second communication path 49 having a second communication port 112. The communication paths are provided at positions different from the position of the flow-out path and communicate with the first liquid accommodating chamber and the filter chamber.

A controller determines: based on image data, Whether both a code image and a non-code image are included in an image to be recorded in a passing region of a recording medium; and in response to determining that both images are included, during a first relative movement of a head, performs first separate recording processing of controlling the head and a motor to record at least part of a portion of the code image included in the passing region without recording a portion of the non-code image included in the passing region; and during a second relative movement which is performed after the first relative movement, performs second separate recording processing of controlling the head and the motor to record at least part of the portion of the non-code image included in the passing region without recording the portion of the code image included in the passing region.