Patent application number | Description | Published |
20090096826 | DROPLET-EJECTION DETECTING DEVICE AND RECORDING APPARATUS - A droplet-ejection detecting device for detecting ejection of droplets from a plurality of nozzle orifices, includes: a beam scanning mechanism which scans a plurality of droplet ejection lines along which droplets ejected from the nozzle orifices fly, by emitting a beam to intersect the droplet ejection lines, thereby subjecting the droplets to irradiation with the beam; a light receiving unit which receives light obtained as a result of the irradiation; and an ejection determining mechanism which determines safe ejections of the droplets from the nozzle orifices based on a received-light signal output from the light receiving unit. | 04-16-2009 |
20090102873 | LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus includes a first nozzle, a second nozzle, an image formation control unit, a latent image formation control unit, and a position detection unit. The first nozzle ejects a first liquid droplet for forming an image on a recording medium. The second nozzle ejects a second liquid droplet that is transparent to visible light for forming a latent image on the recording medium. The image formation control unit, during the relative movement, ejects the first liquid droplet onto the recording medium to thereby form an image pattern. The latent image formation control unit ejects the second liquid droplet onto the recording medium so as to overlap the image pattern to thereby form a latent image pattern. The position detection unit recognizes the latent image pattern as a reference position on the recording medium and detects a relative position between the recording medium and the first nozzle. | 04-23-2009 |
20090195570 | RECORDING SYSTEM, RECORDING APPARATUS AND RECORDING METHOD OF RECORDING APPARATUS - A recording system for performing a recording operation on a target includes a plurality of recording heads, a plurality of controllers that are arranged respectively for the plurality of recording heads, a data distributor that distributes a second data to each of the controllers, the second data resulting from dividing, by the number of recording heads, a first data to be supplied, and a data generator that generates a third data to be output to the plurality of recording heads in response to the second data, the controller includes a transfer unit that transfers the third data to be output to the recording head corresponding to another controller to the other controller, a verification unit that verifies that a record start condition is established. | 08-06-2009 |
20120212529 | NOZZLE STATE DETECTING APPARATUS AND IMAGE FORMING APPARATUS - A plurality of transmission gates provided in mask circuits each having another transmission gate which connects/disconnects an original signal generating circuit to/from a corresponding piezoelectric element (electrode), and a plurality of voltage waveform detecting circuits respectively connected to the electrodes of the respective piezoelectric elements via the former transmission gates are provided exclusively for the respective piezoelectric elements. In detecting an ejection failure of each nozzle, the original signal generating circuit generates a test drive signal enough to prevent each nozzle from ejecting ink to switch all the latter transmission gates on for a certain time, and then switch them off, and switch all the former transmission gates on, so that an ejection failure of the corresponding nozzle is determined based on the vibration period of a voltage waveform detected by the voltage waveform detecting circuit for each piezoelectric element. | 08-23-2012 |
20120229543 | FLUID EJECTING APPARATUS - An ink temperature is calculated based on an ink viscosity. In a zone where the ink temperature is less than 15° C., a first value is set to a proportionality coefficient. In a zone where the ink temperature is equal to or higher than 15° C. and is less than 25° C., a second value is set to the proportionality coefficient. In a zone where the ink temperature is equal to or higher than 25° C. and is less than 40° C., a third value is set to the proportionality coefficient. A drive voltage for a printing head (piezoelectric elements) is set by adding a proportionality term proportional to the ink temperature by the proportionality coefficient to a reference value of the drive voltage. | 09-13-2012 |