Patent application number | Description | Published |
20080231858 | Printing Device, Method of Controlling Printing Device, and Recording Medium - A printing device includes a light input unit that inputs light fluxes emitted from a light source to a measurement-target surface of a print medium on which an image is printed at a predetermined incidence angle, an image pickup unit that picks up an image of the measurement-target surface by collecting reflection light fluxes, which are reflected from the measurement-target surface of the print medium within a predetermined range of reflection angles, for the light fluxes input by the light input unit, receiving the collected light fluxes using a plurality of light receiving elements, and performing a photoelectric conversion process for the light fluxes received by the plurality of light receiving elements, and a measurement-target surface status value calculating unit that calculates a status value of the measurement-target surface representing a status relating to appropriateness or inappropriateness of the measurement-target surface of the print medium for printing based on image data having luminance information of the image picked up by the image pickup unit. | 09-25-2008 |
20090141078 | Liquid ejecting device - A liquid ejecting device includes a head unit having a first nozzle array and a second nozzle array that ejects a liquid of a same type as that of the first nozzle array and a movement mechanism that moves at least one between a target in which the liquid lands and the head unit in a movement direction that intersects with a direction of nozzle arrangement of each of the nozzle arrays. The second nozzle array is disposed in a position deviated from the first nozzle array in the movement direction and is disposed in a position deviated from the first nozzle array in the intersection direction such that an end part of the second nozzle array is located in a center part of the first nozzle array in the intersection direction that intersects with the movement direction. | 06-04-2009 |
20090273631 | Liquid ejecting apparatus - A liquid ejecting apparatus includes a first head having a first nozzle group in which nozzles from which a first liquid is ejected are aligned in a nozzle-row direction at a predetermined pitch and a second nozzle group in which nozzles from which a second liquid is ejected are aligned in the nozzle-row direction at the predetermined pitch, the nozzles in the first nozzle group being positioned between the nozzles in the second nozzle group in the nozzle-row direction; a second head having a third nozzle group in which nozzles from which the first liquid is ejected are aligned in the nozzle-row direction at the predetermined pitch and a fourth nozzle group in which nozzles from which the second liquid is ejected are aligned in the nozzle-row direction at the predetermined pitch, the nozzles in the third nozzle group being positioned between the nozzles in the fourth nozzle group in the nozzle-row direction; and a moving mechanism that moves the first head and the second head relative to a medium in a direction intersecting the nozzle-row direction. In the nozzle-row direction, the nozzles in the third nozzle group are positioned between the nozzles in the first nozzle group, and the nozzles in the fourth nozzle group are positioned between the nozzles in the second nozzle group. | 11-05-2009 |
20100026745 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes a head including: a first nozzle column where nozzles ejecting a first liquid are aligned in a predetermined direction at a predetermined interval; a second nozzle column where nozzles ejecting the first liquid are aligned in the predetermined direction at the predetermined interval; a third nozzle column where nozzles ejecting a second liquid are aligned in the predetermined direction at the predetermined interval; and a fourth nozzle column where nozzles ejecting the second liquid are aligned in the predetermined direction at the predetermined interval, wherein the first nozzle column is disposed off of the second nozzle column in a direction intersecting the predetermined direction, and the interval between a nozzle at an end portion of the first nozzle column and a nozzle at an end portion of the second nozzle column is the predetermined interval in the predetermined direction, wherein the fourth nozzle column is disposed off the third nozzle column in the direction intersecting the predetermined direction, and the interval between a nozzle at an end portion of the third nozzle column and a nozzle at an end portion of the fourth nozzle column is the predetermined interval in the predetermined direction, wherein the second nozzle column and the third nozzle column are disposed to be aligned in the predetermined direction, and wherein the liquids are ejected from the second nozzle column and the third nozzle column according to a common driving signal. | 02-04-2010 |
20100045727 | LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus includes: a head that ejects a liquid on a medium positioned in a printable area; a transporting unit that transports a first medium and a second medium successively in a transport direction; a first supporting member that supports a transport-direction upstream side end portion of the first medium and moves in the transport direction according to transportation of the first medium; and a second supporting member that supports a transport-direction downstream side end portion of the second medium and moves in the transport direction according to transportation of the second medium. | 02-25-2010 |
20140015883 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus includes a printing mechanism performing printing by ejecting ink from a printing head which is relatively moved with respect to the printed medium and a printing control section controlling operation of the printing mechanism. A plurality of nozzle rows are formed side by side for each of ink types in a main scanning direction in the printing head. The printing mechanism includes a transportation section which is configured so as to be capable of switching a transportation direction of the printed medium between a first direction and a second direction. The printing control section performs the printing by switching the first printing mode which uses two or more nozzle rows and the second printing mode which uses one or more nozzle rows, which is caused by switching the transportation direction. | 01-16-2014 |
20150015626 | DOT RECORDING APPARATUS, DOT RECORDING METHOD AND COMPUTER PROGRAM FOR THE SAME - Multi-pass recording is executed for each of n types of super cell regions that are each defined as a region that contains pixel positions in which recording of dots is performed in various types of main scan passes of n types of main scan passes. The n types of super cell regions (i) include a boundary portion that is not parallel to either a main scanning direction or a sub-scanning direction in at least a portion of a boundary of the individual super cell regions, and (ii) are arranged such that the boundary of the n types of super cell regions appears periodically repeating along both the main scanning direction and the sub-scanning direction. | 01-15-2015 |
Patent application number | Description | Published |
20110158669 | IMAGE FORMING APPARATUS - The present invention prevents a toner bottle from being erroneously determined to be empty and allows toner to be reliably refilled into a hopper and thus a developing unit in an image forming apparatus including the developing unit configured to develop an electrostatic latent image formed on an image carrier, using toner. | 06-30-2011 |
20110176838 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - Provided is a developing device capable of, with a simple structure, preventing occurrence of image degradation ascribable to a distribution of an amount of fall in a longitudinal direction due to developer replenishment within a developer container. An upper rim portion of a developer regulating wall for adjusting an amount of a developer falling along a developer transport direction of a developer transport path is inclined so as to become low in height in the developer transport direction of the developer transport path. A width of a surface in the developer transport direction of the developer transport path is enlarged along the developer transport direction of the developer transport path. A wall is formed by the developer transported on the developer transport path, and the developer transported in a longitudinal direction is transported in the longitudinal direction while breaking a wall of the developer itself. | 07-21-2011 |
20120106990 | IMAGE FORMING APPARATUS - An image forming apparatus which has an improved follow-up property indicating how a toner supply amount follows a toner consumption amount to prevent a defective image, including: a photosensitive drum; a developing device; a toner replenishing device; a toner sensor configured to detect a toner amount inside the developing device; and a controller configured to drive the toner replenishing device to replenish the developing device with toner based on a detection result of the sensor during a developing device driving time and to stop the toner replenishing device during a non-image forming period to stop replenishing the developing device with toner, wherein if the toner amount inside the developing device detected by the sensor is reduced to a level equal to or lower than a predetermined threshold value, the controller drives the developing device and the toner replenishing device even during the non-image forming period. | 05-03-2012 |