摘要:
This invention relates to an ink jet recording apparatus and a recording method for recording images of high dignity with the amount of ink placed per unit area of a recording medium being always kept constant even if the resolvability when recording is effected changes. When the amount of ink of an ink droplet discharged from a recording head is constant (25 pl), the average number of recorded dots conformity to the resolvability is found on the basis thereof, and the number of recordable dots is found from this average number of dots. The difference between this number of actually recorded dots and the average number of recorded dots is adjusted by reducing the value of recording data in advance.
摘要:
An inkjet recording apparatus that suppresses temperature rising of a recording head to decrease standby time when the recording head is high in temperature, thereby reducing a drop in recording speed and degradation in image quality. The inkjet recording apparatus includes a recording head configured to have a discharge port surface in which a discharge port for discharging ink is formed, a temperature sensor configured to detect temperature of the recording head, and a cleaning unit configured to make contact with the recording head to clean the discharge port surface. The inkjet recording apparatus controls whether to make the cleaning unit contact the discharge port surface based on the recording head temperature detected by the temperature sensor.
摘要:
When performing at least one of preliminary ejection or a suction unit as a countermeasure against adhering ink that accumulates in the portion where preliminary ejection is performed, the preliminary ejection amount and suction speed of the suction unit are optimized. An inkjet print apparatus that prints by using a printing head for ejecting ink, comprising: an ejecting unit; a sucking unit; a measuring unit that measures an elapsed time after the sucking unit is performed; and a control unit that control ejection by the ejecting unit or sucking by the sucking unit according to the elapsed time measured in the measuring unit; wherein as the elapsed time becomes longer, the amount of ink that is ejected to the ink receiving unit in the ejecting unit is increased or a suction speed at which the ink is sucked in the sucking unit is increased.
摘要:
An inkjet recording apparatus that suppresses temperature rising of a recording head to decrease standby time when the recording head is high in temperature, thereby reducing a drop in recording speed and degradation in image quality. The inkjet recording apparatus includes a recording head configured to have a discharge port surface in which a discharge port for discharging ink is formed, a temperature sensor configured to detect temperature of the recording head, and a cleaning unit configured to make contact with the recording head to clean the discharge port surface. The inkjet recording apparatus controls whether to make the cleaning unit contact the discharge port surface based on the recording head temperature detected by the temperature sensor.
摘要:
A region to be covered by a cover plate (208) on an ejection opening forming surface (205) of an ink-jet head or an ink-jet head to which the cover plate (208) is installed are determined, on a basis of content of a rebounding mist generated upon ejection of an ink and a processing liquid in overlaying fashion. By this, in the ink-jet printing apparatus performing printing by ejecting the ink and the processing liquid for making the ink insoluble, deposition of the insoluble substance contained in the rebounding mist generated upon ejection of an ink and a processing liquid in overlaying fashion can be successfully prevented.
摘要:
A liquid container which supplies ink to its exterior until the ink is almost depleted and allows simple detection of the remaining ink amount, is constructed to distribute components of the ink even after a prolonged standing. The liquid container is provided with a connecting portion for connection to an ink deriving tube and an air introduction tube of an ink jet printer. Both the ink deriving tube and the air introduction tube are positioned for connection to the connecting portion at a position deviated from a center of the bottom of the liquid container. The deviation facilitates mixing of ink components as ink is supplied from the container.
摘要:
For the sake of achieving both the size and weight reductions of a printing apparatus and increasing the reliability thereof, an ink tank is provided with a gas-permeable member that permits air to pass without permitting ink. The ink tank is capable of introducing ink through an ink inlet by negative pressure introduced in the ink tank through a common suction port.
摘要:
A recovery method for an ink jet printing apparatus is provided which makes it possible to use as much ink in the ink tank as possible and minimize the residual ink volume at time of a tank replacement. The recovery method for keeping an ejection performance of the print head in appropriate condition by performing a recovery operation of discharging ink from the print head, therefore, includes the steps of: detecting a residual ink volume in the ink tank; and controlling a discharge ink volume to be discharged by the recovery operation when the residual ink volume detected by the residual ink volume detection step is less than or equal to a predetermined value.
摘要:
A joint device includes a supply pipe having an ink supply port, a closing device for opening and closing the ink supply port, a deformation device for deforming the closing device and an urging device for urging the deformation device. An ink jet recording apparatus includes the above joint device, a supply pipe, a closing device, a deformation device, and an urging device. An ink supplying device includes a negative-pressure introducing device introducing negative pressure into the ink tank an ink supplying device supplying the ink to the ink tank, a gas-liquid separating device provided between the ink tank and the negative-pressure introducing device, for transmitting gases therethrough while not transmitting the ink therethrough, and an isolation device separating the negative-pressure introducing path.
摘要:
An ink jet printing method for performing printing onto a printing medium with the use of both of a colored ink ejected from an ink jet head and a printing property improving liquid to be applied to the printing medium for improving a printing property for an ink jet printing apparatus, having the steps of: at least one time or more printing a first colored ink on the printing medium, at least one time or more applying the printing property improving liquid onto a region printed with the colored ink, and at least one time or more printing a second colored ink on a region where the printing property improving liquid is applied.