摘要:
A timing signal generator generates an ejection timing signal each time a printing paper travels a predetermined distance relative to a head, and a driving signal generator inputs a driving signal based on writing data to the head each time an ejection timing signal is generated. In the course of printing, when an interval between two continuous ejection timing signals is equal to or longer than twice a basic time period of input of driving signal which is fixed for a head, a non-ejection driving signal which is a driving signal indicating a non-ejecting operation is input to the head between two driving signals respectively associated the two continuous ejection timing signals. Accordingly, it is possible to reliably and properly perform ejection of ink based on writing data with a time period equal to or longer than the basic time period.
摘要:
The driving signal generation section is able to generate a first ejection drive pulse for ejecting the first liquid and a second ejection drive pulse for ejecting the second liquid. The control section forms a pre-dot group in advance on a landing target area of the first liquid in the ejection target by ejecting the second liquid on the basis of the second ejection drive pulse, and subsequently forms a pattern dot on the landing target area, on which the pre-dot group is formed, by ejecting the first liquid on the basis of the first ejection drive pulse. In the apparatus, a total length of the pre-dot group in a direction of the relative movement is longer than a total length of the pattern dot in the direction of the relative movement.
摘要:
In an ink jet recording apparatus and method recording is performed by using a replaceable ink cartridge mounted in the ink jet recording apparatus, and includes a recording head for delivering ink therefrom. Cleaning of the recording head is carried out by sucking ink from the recording head. A cartridge absence time period is detected over which continues a cartridge-unmounted state of the ink jet recording apparatus in which the ink cartridge is removed from the ink jet recording apparatus. An amount of ink to be sucked for the cleaning is set, based on the cartridge absence time period, when the ink cartridge is mounted in the ink jet recording apparatus.
摘要:
A timing signal generator generates an ejection timing signal each time a printing paper travels a predetermined distance relative to a head, and a driving signal generator inputs a driving signal based on writing data to the head each time an ejection timing signal is generated. In the course of printing, when an interval between two continuous ejection timing signals is equal to or longer than twice a basic time period of input of driving signal which is fixed for a head, a non-ejection driving signal which is a driving signal indicating a non-ejecting operation is input to the head between two driving signals respectively associated the two continuous ejection timing signals. Accordingly, it is possible to reliably and properly perform ejection of ink based on writing data with a time period equal to or longer than the basic time period.
摘要:
There is provided a DC motor control system and method which is capable of carrying out an accurate rotation control of a DC motor even when the power supply voltage thereof is reduced. A detection signal indicative of a detected number of rotations of the DC motor is delivered. Stop control is carried out for stopping the DC motor by braking rotation of the DC motor when the number of rotations of the DC motor indicated by the detection signal has reached a predetermined number of rotations.
摘要:
A liquid ejecting apparatus according to the invention includes a liquid ejecting head capable of ejecting liquid from nozzle openings provided in a nozzle-forming surface, a nozzle-forming-surface visual-inspection unit for enabling a visual inspection of the nozzle-forming surface, and a liquid receptacle for receiving liquid discharged as waste liquid from the nozzle openings in the liquid ejecting head. The liquid receptacle is movable between a receiving position, where the liquid receptacle is positioned adjacent to the nozzle-forming surface, and a non-receiving position, where the liquid receptacle is positioned away from the receiving position. The liquid receptacle covers the nozzle-forming-surface visual-inspection unit when the liquid receptacle is positioned at the receiving position. The nozzle-forming-surface visual-inspection unit allows the nozzle-forming surface to be visually inspected when the liquid receptacle is positioned at the non-receiving position.
摘要:
A heat-conductive frame (448) is provided extending between a holder frame (446) and a fixing member (447) of an optical device (44). Additionally, a heat-conductive member (450) is provided, which abuts on a dust-proof glass on the light-irradiation side of a liquid crystal panel (440) and the fixing member (447). The holder frame (446) and the fixing member (447) are fixed by a heat-conductive agglutinate. Besides, a heat-conductive member (452) is attached extending between a light-irradiation surface of a transparent member (443A) of an irradiation-side polarization plate (443) and the fixing member (447). A heat-radiation fin (449) having a plurality of fin members (449B) is attached to an upper plate body (447C) of the fixing member (447).
摘要:
A heat-conductive frame (448) is provided extending between a holder frame (446) and a fixing member (447) of an optical device (44). Additionally, a heat-conductive member (450) is provided, which abuts on a dust-proof glass on the light-irradiation side of a liquid crystal panel (440) and the fixing member (447). The holder frame (446) and the fixing member (447) are fixed by a heat-conductive agglutinate. Besides, a heat-conductive member (452) is attached extending between a light-irradiation surface of a transparent member (443A) of an irradiation-side polarization plate (443) and the fixing member (447). A heat-radiation fin (449) having a plurality of fin members (449B) is attached to an upper plate body (447C) of the fixing member (447).