Abstract: A printing apparatus includes an ejection unit that forms an image on a print medium by ejecting liquid from an ejection port using drive of an ejection energy generation element in a pressure chamber, the liquid flowing into the pressure chamber from a first flow passage, a circulation unit circulates the liquid in a circulation flow passage including the first flow passage, the pressure chamber, and a second flow passage to allow the liquid to flow to outside of the pressure chamber, a recovery unit performs a recovery operation of the ejection unit, and a control unit stops the circulation unit before completion of the print operation when the recovery operation is to be performed after the print operation, such that a flow velocity at a timing of the completion of the print operation is a flow velocity higher than a flow velocity at which an ejection characteristic is maintained.

Abstract: A liquid ejection apparatus including: a liquid ejection head having first and second nozzle arrays that eject first and second liquids, respectively; first and second liquid supply channels which supply the first and second liquids inside first and second liquid containing units to the liquid ejection head, respectively; first and second pressurization units which pump the first and second liquids to the liquid ejection head through the first and second liquid supply channels; and a control unit configured, in a case of preparing for detaching the liquid ejection head, to control the first and second pressurization units to stop pumping, respectively, and to control the liquid ejection head to discharge the first and second liquids from the first and second nozzle arrays, respectively, while controlling amounts of the first and second liquids discharged from the first and second nozzle arrays, respectively, in the liquid discharge operation.

Abstract: A printing apparatus has a moving carriage mounted on a printing head having a liquid ejection nozzle, a first cap at one end of a carriage movement range to cap the nozzle, a second cap at the other end of the range, to cap the nozzle, and a control unit having a first control in which first cap caps the nozzle or a second control in which the second cap caps the nozzle. When the carriage has anomalously stopped during printing, a recovery operation on the printing head after the first control execution is different from a recovery operation on the printing head after the second control is executed. The recovery operation includes preliminary liquid ejection at a timing other than printing, suctioning the liquid inside the first cap when the nozzle is capped by the first cap, and/or dipping the nozzle into the liquid supplied into the first cap.

Abstract: A printing apparatus includes a printing unit with an ejection port surface, on which is formed an ejection port array with a plurality of ejection ports that ejects ink, a wiping unit with a wiping member for wiping a predetermined area including the ejection port array, and to wipe the predetermined area by relative movement with the printing unit, an application unit to apply a wiping liquid for re-dispersing the ink, and a control unit to control the application unit to apply the wiping liquid to a wiping area, according to an amount of ink adhering to the wiping member. The application unit applies a first amount of the wiping liquid to the wiping area when the adhesion amount is a first amount, and applies a second amount, less than the first, to the wiping area when the adhesion amount is a second adhesion amount, less than the first.

Abstract: A printing apparatus including a printing unit having a first discharge port array with a plurality of first discharge ports in a first direction that discharge first ink, a second discharge port array with a plurality of second discharge ports in the first direction, that discharge a reaction liquid to react with the first ink, and a third discharge port array with a plurality of third discharge ports in the first direction, the third discharge ports configured to discharge a second ink different from the first, the first discharge port array, the second discharge port array, and the third discharge port array being arranged on a discharge port surface in a second direction intersecting with the first direction. A maintenance unit is configured to wipe the discharge port surface with a wiping member provided with a property to absorb the first and second ink, and the reaction liquid.

Abstract: A printing apparatus including a print head ejecting ink, flowing from a first channel into a pressure chamber, from a nozzle, by driving an ejection energy generating element in the pressure chamber, a circulation pump circulates the ink in a circulation channel including the first channel, the pressure chamber, and a second channel that flows the ink from inside the pressure chamber to the outside, a wiping unit with a cleaning member that wipes an ejection port surface of an ejection port and a winding member that winds the cleaning member, and a control unit controls a cleaning operation in which the wiping unit wipes the ejection port surface. When the cleaning operation is performed after the circulation pump is stopped, the cleaning operation is changed based on an elapsed time from the time the circulation pump stopped driving, and the cleaning operation is controlled based on the elapsed time.

Abstract: A printing apparatus including a print head ejecting ink, flowing from a first channel into a pressure chamber, from a nozzle, by driving an ejection energy generating element in the pressure chamber, a circulation pump circulates the ink in a circulation channel including the first channel, the pressure chamber, and a second channel that flows the ink from inside the pressure chamber to the outside, a wiping unit with a cleaning member that wipes an ejection port surface of an ejection port and a winding member that winds the cleaning member, and a control unit controls a cleaning operation in which the wiping unit wipes the ejection port surface. When the cleaning operation is performed after the circulation pump is stopped, the cleaning operation is changed based on an elapsed time from the time the circulation pump stopped driving, and the cleaning operation is controlled based on the elapsed time.

Abstract: A printing apparatus including a printing unit configured with an ejection port surface for ejecting ink, a wiping unit configured to wipe the ejection port surface using a wiping member by relative movement with the printing unit, an application unit configured to apply a wiping liquid to the wiping member, a detection unit configured to detect the ink on the wiping member, and a control unit configured to cause the printing unit to print a predetermined pattern on a predetermined area of the wiping member and to cause the application unit to apply the wiping liquid, and, then, to cause the detection unit to detect the ink on the predetermined area.

Abstract: A recording apparatus includes a recording unit, a scanning unit configured to perform relative scanning by moving the recording unit and a recording medium relative to each other at least once with respect to a unit region on the recording medium, a recovery unit configured to perform a recovery operation for maintaining or recovering a recording performance of the recording unit for application of a recording material, and a control unit configured to control the recovery unit, wherein the control unit acquires recording mode information about recording of an image to be performed on a recording medium for (n+1)-th page (n being a natural number) and determines, based on the acquired recording mode information, whether to perform an inter-page recovery operation at timing after recording of an image on a recording medium for n-th page ends and before recording of an image on a recording medium for (n+1)-th page starts.

Abstract: A liquid supply apparatus includes a deformable liquid containing member configured to contain a liquid to be supplied to a liquid discharge head for discharging the liquid to a recording medium, a liquid supply flow path for supplying the liquid to the liquid discharge head from the liquid containing member, a liquid retaining chamber disposed on the liquid supply flow path and configured to let the liquid flow into the liquid discharge head from the liquid containing member, a liquid draw-in unit configured to draw the liquid into the liquid retaining chamber from the liquid containing member, a pressing unit configured to press the liquid containing member from the outside, and a control unit configured to perform a control to display a first display or a second display on a display unit based on a volume of the liquid retaining chamber.

Abstract: An ink jet recording method for recording an image on a recording medium by ejecting an aqueous ink from a print head of an ink jet recording apparatus includes applying an aqueous ink onto a recording medium, and cleaning a liquid contact member coming into contact with the aqueous ink in the ink jet recording apparatus with an aqueous cleaning liquid. The cleaning liquid contains a surfactant, a first water-soluble organic solvent with a lower vapor pressure than water, a second water-soluble organic solvent with an SP value, measured by a Fedors method, of 9.8 or more to 14.2 or less, and a third water-soluble organic solvent with a water retention capacity of 50% or less in an amount by mass of 0.7 or more relative to the total amount by mass of the water-soluble organic solvents. The cleaning liquid has a pH of 8.5 or more.

Abstract: A technique for suppressing ejection failure at an ejection port, which is caused by reaction of reaction liquid and ink during a wiping operation, is to be provided. Before the ejection port surface, on which the first ejection port array that is capable of ejecting the ink and the second ejection port array that is capable of ejecting the reaction liquid which reacts with the ink are formed, is wiped by the maintenance unit that is capable of receiving the ink and the reaction liquid, ink that does not contribute to printing is ejected to an area of the maintenance unit between an area abutted by the first ejection port array during the wiping and an area abutted by the second ejection port array during the wiping.

Abstract: A liquid discharge apparatus includes a discharging head including a nozzle configured to discharge a liquid; a circulation pump provided in the discharge head and configured to supply the liquid to the nozzle, the pump being configured to circulate the liquid; and a control unit configured to control driving of the circulation pump. The control unit is configured to switch a driving condition of the circulation pump to change a flow velocity of the liquid during a circulation period of the liquid.

Abstract: A printing apparatus includes an ink discharge head including a plurality of discharge ports that respectively discharge a plurality of types of ink, and a plurality of circulation paths for circulating ink between the plurality of discharge ports and a plurality of liquid chambers that respectively house the plurality of types of ink; a circulation mechanism that circulates ink in the plurality of circulation paths; and a control unit that performs control to determine, based on print data, which path among the plurality of circulation paths that circulation mechanism is to circulate ink in.

Abstract: It is intended to excellently maintain a discharge characteristic of a discharge head. A liquid discharge apparatus includes a discharge head including a nozzle for discharging liquid, a circulation unit capable of circulating liquid through a circulation flow path including the discharge head, a cap unit capable of capping a nozzle surface of the discharge head where the nozzle is formed, and a control unit for controlling the discharge head, the circulation unit, and the cap unit. In a case where anomaly is detected and the cap unit cannot cap the nozzle surface, the control unit causes the circulation unit to circulate liquid through the circulation flow path.

Abstract: A technology capable of efficiently using a wiping member is to be provided. A printing apparatus is equipped with: a printing unit configured with an ejection port surface on which an ejection port array with a plurality of ejection ports that ejects ink being arranged in an array is formed; a wiping unit configured with a wiping member for wiping a predetermined area including the ejection port array of the ejection port surface, so as to be capable of wiping the predetermined area by relative movement with the printing unit; an application unit configured to be capable of applying a wiping liquid for re-dispersing the ink; and a control unit configured to control the application of the wiping liquid, which is performed by the application unit to a wiping area that wipes the predetermined area, according to a adhesion amount of the ink adhering to the wiping member.

Abstract: A liquid ejection apparatus including: a liquid ejection head having first and second nozzle arrays that eject first and second liquids, respectively; first and second liquid supply channels which supply the first and second liquids inside first and second liquid containing units to the liquid ejection head, respectively; first and second pressurization units which pump the first and second liquids to the liquid ejection head through the first and second liquid supply channels; and a control unit configured, in a case of preparing for detaching the liquid ejection head, to control the first and second pressurization units to stop pumping, respectively, and to control the liquid ejection head to discharge the first and second liquids from the first and second nozzle arrays, respectively, while controlling amounts of the first and second liquids discharged from the first and second nozzle arrays, respectively, in the liquid discharge operation.

Abstract: A technology capable of detecting a state of application of a wiping liquid with high accuracy is to be provided. To a predetermined area of a wiping member that wipes an ink ejection port surface of a printing unit, a predetermined pattern is printed by the printing unit, and a wiping liquid for re-dispersing ink that has adhered to or solidified on the ejection port surface is applied by the application unit. Then, the concentration of ink on the predetermined area is detected by the detection unit.

Abstract: A printing apparatus includes: a supply unit configured to supply a cleaning liquid into the cap; a discharge unit configured to discharge the liquid from the cap; and a control unit configured to execute a discharge operation to cause the discharge unit to discharge an amount of the liquid smaller than a supply amount of the cleaning liquid supplied into the cap by the supply unit.

Abstract: A printing apparatus includes: a carriage configured to cause a printing head to scan, the printing head having a nozzle configured to eject a liquid; a first cap disposed at one end of a range in which the carriage moves and configured to cap the nozzle; a second cap disposed at the other end of the range in which the carriage moves and configured to cap the nozzle; and a control unit configured to be capable of executing a first control in which the nozzle is capped by the first cap and a second control in which the nozzle is capped by the second cap, in a case where the carriage has anomalously stopped during printing using the printing head.