An inkjet recording device has a head base, a head unit, and an adjustment mechanism. The adjustment mechanism has a guide screw, a moving member, the operation member for rotating the moving member, and an adjusting member. The moving member has a shaft hole screwed into the guide screw, and moves in an axial direction of the guide screw by rotating with respect to the guide screw. The adjusting member has a first contact portion in contact with the moving member and a second contact portion in contact with the head unit. The second contact portion moves in a direction toward the head unit and a direction away from the head unit, by moving the moving member in contact with the first contact portion in the axial direction of the guide screw.

An inkjet recording device includes a head base having a mounting space, a head unit having a recording head that discharges ink and being inserted within the mounting space from one side of a specific direction, a ball plunger that presses the head unit, inserted in the mounting space, in a direction orthogonal to the specific direction, and the head unit is secured in the mounting space by the pressing force of the ball plunger.

A recording apparatus includes: a plurality of medium containing units that is provided along a vertical direction and contains a medium before recording; a liquid ejecting head that performs recording by ejecting liquid toward the medium; and at least one liquid containing unit that contains the liquid; wherein the plurality of medium containing units includes a first medium containing unit located at an uppermost position, and a second medium containing unit located below the first medium containing unit, a size of the first medium containing unit in a medium feeding-out direction, in which the medium is fed out, is smaller than a size of the second medium containing unit in the medium feeding-out direction, and the at least one liquid containing unit is provided above the second medium containing unit in such a way as to overlap with the first medium containing unit in the vertical direction.

An image forming apparatus includes a linehead and a control unit. The linehead of an image forming apparatus includes a common ink chamber, a plurality of nozzles, an individual ink flow path, an ink supply path, a first piezoelectric actuator, and a second piezoelectric actuator. One end of the individual ink flow path is connected to the nozzle. The ink supply path is connected to the individual ink flow path and the common ink chamber. When putting the nozzle into a drying prevention state, the control unit deforms the first piezoelectric actuator in a direction in which a capacity of the individual ink flow path increases, to thereby draw an interface of ink to inside the nozzle. Further, the control unit deforms the second piezoelectric actuator, to thereby close the ink supply path.

An image forming apparatus includes a head, a first controller, and a second controller. When calculating an amount of ink used, the first controller obtains an estimated number of discharges, which is the number of dots of the ink to be discharged, on a basis of print image data which is image data used for printing, without using information on an actual number of discharges of the ink at the head. The first controller obtains a print usage on a basis of a value obtained by multiplying the obtained estimated number of discharges by a discharged droplet amount per ink discharge. The print usage is the amount of the ink used, discharged onto a paper for printing each page of a print job.

A wipe unit, including one or more wipers, a wiper carriage, a collection tray, and an ink receiving member, cleans a recording head having an ink ejection surface in which an ink ejection port for ejecting ink onto a recording medium is opened. The one or more wipers wipe off ink on the ink ejection surface. The wiper carriage is moved along a wiping direction while holding the wiper. The collection tray, having a tray surface and placed below the wiper, collects ink wiped off by the wiper. The ink receiving member, which is recessed-shaped and provided in the wiper carriage, receives ink dropping from a wiper that is placed furthest downstream in the wiping direction among the one or more wipers, and moreover the ink receiving member lets the ink drop onto the tray surface.

Provided is an inkjet recording apparatus that causes a recording head to execute appropriate flushing based on the presence or absence of a non-ejecting nozzle in order to reduce deterioration of the image quality of recorded images or to improve the ejection failure of a non-ejecting nozzle at an early stage. When the recording head executes a first flushing, a control unit of the inkjet recording apparatus determines the presence or absence of a non-ejecting nozzle based on a detection result of an ejection detection unit. Then, based on the determination result, the control unit selects whether or not to perform a second flushing. In the second flushing, the recording head is caused to eject ink at timing at which a recording medium on the conveyor belt faces the recording head due to traveling of the conveyor belt.

Provided is an inkjet recording apparatus that avoids deterioration of the image quality of recorded images due to flushing without reducing productivity even when the recording medium is placed at a position deviated from the normal position with respect to the opening of the transport belt. In the control unit of the inkjet recording apparatus, at least one recording medium is placed between two opening groups located in a preset pattern on a transport belt. In addition, based on the detection result of the second detection sensor, the recording medium supply unit supplies a plurality of recording media to the transport belt so that a tip of the leading recording medium is located at a specific position with respect to a reference opening group on the transport belt. This first control is performed.

A waste liquid recovery apparatus including a waste liquid tube through which waste liquid flows and a displacement mechanism. The displacement mechanism includes a driven portion that receives a driving force and operates owing to the driving force and a displacement portion that is displaced within a predetermined displacement range in conjunction with the operation of the driven portion. The waste liquid tube includes a flexible tube at least at a terminal end from which the waste liquid is issued. When the displacement portion is displaced within the predetermined displacement range, a contact depth of the displacement portion with respect to the contacted portion of the flexible tube, near the terminal end, changes.

When performing on-sheet preliminary ink ejection, a control unit (a) determines a nozzle that performs the on-sheet preliminary ink ejection, (b) randomly selects on a print sheet an ejection position candidate of an ink droplet ejected from the determined nozzle, (c) determines whether the selected ejection position candidate is included by a mask area that includes a postprocessing object, (d1) if the selected ejection position candidate is not included by the mask area, sets as the selected ejection position candidate an ejection position of an ink droplet ejected from the determined nozzle, and (d2) if the selected ejection position candidate is included by the mask area, does not set as the selected ejection position candidate an ejection position of an ink droplet ejected from the determined nozzle and sets an ejection position of an ink droplet ejected from the determined nozzle outside of the mask area.