Abstract: A printing apparatus includes an ink tank that stores ink, a supply tube that supplies the ink from the ink tank, and a printing head that includes therein a pressure chamber arranged with an ejection port to eject the ink and performs reciprocal moving. The printing head includes a first liquid chamber that includes a connection portion with the supply channel, a second liquid chamber that communicates with the first liquid chamber by way of the pressure chamber, and a volume variable unit that changes an inner volume of the second liquid chamber.

Abstract: An inkjet printing apparatus, comprising a printing head, a carriage having the printing head, a first roller pair disposed upstream of the printing head and configured to nip and convey a printing medium, a second roller pair disposed downstream of the printing head and configured to nip and convey a printing medium, a first ink receiver disposed inside a printing region and configured to receive an ink from the printing head, and a second ink receiver disposed outside the printing region and configured to receive an ink from the printing head, wherein the printing head performs preliminary discharge on the first ink receiver in a first nip state, and performs preliminary discharge on the second ink receiver in a second nip state.

Abstract: The object of the present disclosure is to optimize the time necessary for filling and the ink consumption. One embodiment of the present disclosure is a printing apparatus having: a storage unit; a print head having an ejection port from which ink supplied from the storage unit is ejected; an ink supply path that connects the storage unit and the print head; a suction unit configured to perform suction at the ejection port; and a supply control unit configured to supply ink stored in the storage unit to the ink supply path and the print head by performing suction at the ejection port by the suction unit, and the printing apparatus has an acquisition unit configured to acquire information relating to ink discharge from the ink supply path and the supply control unit determines the number of times of suction by the suction unit based on the information.

Abstract: 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.

Abstract: An object of the present invention is to quickly correct a temperature sensor for an ejection head by, both efficiently and in a brief time, estimating a detected temperature of the temperature sensor for the ejection head in a case where the temperature of the ejection head of liquid becomes sufficiently close to an environment temperature. The temperature of a print head 1 is detected by a diode sensor 17 and the environment temperature is detected by a thermistor 10. Based on a change in the detected temperature of the diode sensor 17 at the time of filling of ink for the print head 1, the detected temperature of the diode sensor 17 in a case where the temperature of the print head 1 becomes close to the environment temperature is estimated as an estimated detected temperature. Based on a difference between the estimated detected temperature and the environment temperature, a correction value of the detected temperature of the diode sensor 17 is set.

Abstract: A recording apparatus discharges an ink in a first color to a position at which an accumulated state on an ink absorber is to be detected. After that, a light is emitted onto the position from a light emitting unit, and reflected light is received by a light receiving unit.

Abstract: A printing apparatus includes a printing head configured to eject a first ink and a second ink, wherein the second ink generates less deposition than the first ink, an ink absorber configured to absorb the ink ejected from the printing head, a detection unit configured to detect a state of the ink absorber through an optical method, and a control unit configured to cause the printing head to eject the second ink to the ink absorber based on a detection result of the detection unit.

Abstract: An inkjet recording apparatus includes a recording unit, a first ink storage unit, a second ink storage unit, a discharge unit, a first detection unit configured to detect that an amount of the ink stored in the first ink storage unit is below a first predetermined amount, and a second detection unit configured to detect that an amount of the ink stored in the second ink storage unit is below a second predetermined amount. The inkjet recording apparatus further includes a control unit configured to control the discharge operation after the detection by the first detection unit and the detection by the second detection unit based on a detection timing of the first detection unit and a detection timing of the second detection unit.

Abstract: Provided is an inkjet printing apparatus capable of performing preliminary discharge without the influence of mist while suppressing degradation in throughput regardless of a preliminary discharge time. Specifically, an inkjet printing apparatus that performs a wiping operation on a nozzle arrangement surface provided with nozzles discharging an ink in a print head includes a wiping determination unit that determines whether to perform the wiping operation before preliminary discharge based on the amount of the preliminary discharge to be performed.

Abstract: According to an embodiment of this invention, an apparatus comprises: a detachable inktank containing ink; a subtank containing the ink supplied from the inktank; a printhead configured to discharge the ink supplied from the subtank; an ink supply path connecting the subtank to the printhead; a valve arranged on the ink supply path; a supply unit configured to supply the ink from the inktank to the subtank by repeatedly opening and closing the valve; a suction unit configured to suck the ink from the printhead; and a control unit configured to control, when the inktank is attached, the supply unit to operate for a predetermined number of times to supply the ink from the inktank to the subtank, and to subsequently control the suction unit to operate to supply the ink from the subtank to the printhead.

Abstract: An inkjet printing apparatus includes a head, a platen, a platen absorbent that temporarily stores ink ejected from the head, a waste ink storage container that stores the ink discharged from the platen absorbent, and an estimation unit that, in a case where the platen is divided into a plurality of regions in a direction intersecting a conveyance direction of the printing medium, estimates an amount of ink stored in the waste ink storage container based on a position of a region to which the ink is ejected by the head and an amount of ink ejected to the region.

Abstract: An object of the present invention is to quickly correct a temperature sensor for an ejection head by, both efficiently and in a brief time, estimating a detected temperature of the temperature sensor for the ejection head in a case where the temperature of the ejection head of liquid becomes sufficiently close to an environment temperature. The temperature of a print head 1 is detected by a diode sensor 17 and the environment temperature is detected by a thermistor 10. Based on a change in the detected temperature of the diode sensor 17 at the time of filling of ink for the print head 1, the detected temperature of the diode sensor 17 in a case where the temperature of the print head 1 becomes close to the environment temperature is estimated as an estimated detected temperature. Based on a difference between the estimated detected temperature and the environment temperature, a correction value of the detected temperature of the diode sensor 17 is set.

Abstract: A print apparatus has a supporting section for supporting a roll of a continuous sheet, a driving mechanism having a motor for rotating the roll supported by the supporting section, a detection unit configured to detect a rotation state of the roll supported by the supporting section, a conveyance roller for conveying the continuous sheet drawn out from the roll and a print unit configured to form an image on the continuous sheet conveyed by the conveyance roller. A control unit is configured to obtain information indicating a moment of inertia of the roll supported by the supporting section based on detected values of the detection unit and to adjust a driving torque of the motor based on the obtained information, intermittently during printing.

Abstract: An inkjet recording apparatus includes a recording unit, a first ink storage unit, a second ink storage unit, a discharge unit, a first detection unit configured to detect that an amount of the ink stored in the first ink storage unit is below a first predetermined amount, and a second detection unit configured to detect that an amount of the ink stored in the second ink storage unit is below a second predetermined amount. The inkjet recording apparatus further includes a control unit configured to control the discharge operation after the detection by the first detection unit and the detection by the second detection unit based on a detection timing of the first detection unit and a detection timing of the second detection unit.

Abstract: A printing apparatus includes a printing head configured to eject a first ink and a second ink, wherein the second ink generates less deposition than the first ink, an ink absorber configured to absorb the ink ejected from the printing head, a detection unit configured to detect a state of the ink absorber through an optical method, and a control unit configured to cause the printing head to eject the second ink to the ink absorber based on a detection result of the detection unit.

Abstract: Provided is an inkjet printing apparatus capable of performing preliminary discharge without the influence of mist while suppressing degradation in throughput regardless of a preliminary discharge time. Specifically, an inkjet printing apparatus that performs a wiping operation on a nozzle arrangement surface provided with nozzles discharging an ink in a print head includes a wiping determination unit that determines whether to perform the wiping operation before preliminary discharge based on the amount of the preliminary discharge to be performed.

Abstract: A recording device including a recording head, a tank, a valve capable of being switched between an open state where ink is supplied from the tank to the recording head and a closed state where the ink is not supplied, a cap covering a discharge port surface, a pump configured to make a pressure of an inside of the cap negative, an acquiring unit configured to acquire information on an atmospheric pressure of an environment where the recording device is placed, and a control unit configured to perform a suction operation of sucking the ink from the discharge port surface by driving the pump when the valve is in the closed state, making the pressure of the inside of the cap negative, and then switching the valve to the open state and to control the suction operation based on the acquired information.

Abstract: Provided is an inkjet printing apparatus capable of performing preliminary discharge without the influence of mist while suppressing degradation in throughput regardless of a preliminary discharge time. Specifically, an inkjet printing apparatus that performs a wiping operation on a nozzle arrangement surface provided with nozzles discharging an ink in a print head includes a wiping determination unit that determines whether to perform the wiping operation before preliminary discharge based on the amount of the preliminary discharge to be performed.

Abstract: An inkjet printing apparatus includes a head, a platen, a platen absorbent that temporarily stores ink ejected from the head, a waste ink storage container that stores the ink discharged from the platen absorbent, and an estimation unit that, in a case where the platen is divided into a plurality of regions in a direction intersecting a conveyance direction of the printing medium, estimates an amount of ink stored in the waste ink storage container based on a position of a region to which the ink is ejected by the head and an amount of ink ejected to the region.

Abstract: An inkjet printing apparatus capable of detecting an ink amount in an attachable inktank at a multi-level with a simple arrangement has the following arrangement. That is, the printing apparatus includes a printhead which prints an image by discharging ink, an inktank which contains the ink supplied to the printhead, a reservoir capable of temporarily containing the ink supplied from the inktank, and a detection unit which performs a detection operation of detecting whether the ink amount in the inktank is more than a predetermined amount. Then, the detection unit performs the detection operation in a state in which the reservoir contains the ink supplied from the inktank.