Patent application number | Description | Published |
20100066782 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus including a conveyance mechanism configured to convey a sheet in a predetermined direction, a printing unit configured to print an image on the sheet, a direct sensor having an image pickup device configured to image the sheet, which is used to sense movement of the sheet by signal processing of an output from the image pickup device, a movement mechanism configured to move the image pickup device in a direction including a component of the predetermined direction, and a control unit configured to control the conveyance mechanism, the printing unit, and the movement mechanism. | 03-18-2010 |
20100134551 | PRINTING APPARATUS - A printing apparatus includes a plurality of image sensors imaging a sheet to be conveyed, and a direct sensor unit performing the signal processing of the outputs of the image sensors to detect the movement of the sheet. Here, the plurality of image sensors are provided on the carriage at least at two positions with at least the recording element array diagonally put between the two positions. The plurality of image sensors can image the sheet at two positions separated in a main scan direction and a sub-scan direction. | 06-03-2010 |
20100134552 | PRINTING APPARATUS - Provided is a printing apparatus including a sensor unit for measuring a moving state of a sheet by optically detecting a surface of the sheet conveyed by a conveying unit. The sensor unit measures and compares the moving states of the sheet at a first measurement position and a second measurement position which are distinct from each other in a main scanning direction, to thereby obtain information on a skew state of a skew component of the moving sheet. | 06-03-2010 |
20100148426 | PRINTING APPARATUS - Provided is a printing apparatus, including a sensor unit which optically detects, at a measurement position, a surface of a sheet, for measuring a moving state of the sheet. The sensor unit measures the moving state of the sheet when the sheet is located at the measurement position, and measures a moving state of a surface of the rotary member when the sheet is not located at the measurement position. | 06-17-2010 |
20110109689 | RECORDING APPARATUS - An apparatus includes a supply unit having a humidifying portion that supplies humidified gas near a nozzle array of a line-type recording head. In correspondence to displacement of the recording head in a direction of the nozzle array, at least one of an introducing direction and an introducing position of the supplied humidified gas can be changed. | 05-12-2011 |
20110109690 | RECORDING APPARATUS - A supply unit is provided to supply humidified gas near a nozzle array of a line-type recording head. The flow-rate distribution of the supplied humidified gas in a direction of the nozzle array is changeable in accordance with a conveying region where a sheet is conveyed while opposing the nozzle array. | 05-12-2011 |
20110109691 | RECORDING APPARATUS - An apparatus includes a recording head having a sealing portion arranged in proximity to nozzle arrays and protruding beyond a nozzle surface. A wiper unit configured to wipe the nozzle surface of the recording head has a first wiper blade and a second wiper blade, and the first wiper blade is arranged to be inclined by an angle θ | 05-12-2011 |
20110115846 | RECORDING APPARATUS - An apparatus includes a recording head arranged so as to oppose a sheet moving in a first direction, in which a plurality of first nozzle chips and a plurality of second nozzle chips each having a nozzle array are arranged as different arrays in a second direction crossing the first direction, and in which the first nozzle chips and the second nozzle chips adjacent to each other are shifted from each other in the second direction, a first suction unit opposed to the first nozzle chips and configured to suction ink from a part of the nozzle arrays included in the first nozzle chips, a second suction unit opposed to the second nozzle chips and configured to suction ink from a part of the nozzle arrays included in the second nozzle chips, a suction holder configured to retain the first suction unit and the second suction unit, and a movement mechanism configured to cause relative movement between the recording head and the suction holder in the second direction, wherein the first suction unit and the second suction unit are shifted from each other in the second direction in correspondence with the shift between the first nozzle chips and the second nozzle chips. | 05-19-2011 |
20110115863 | RECORDING APPARATUS - An apparatus includes a humidifying unit that generates humidified gas, a drying unit that dries ink applied to a sheet by a recording unit, a first duct that supplies gas discharged from the drying unit to at least one of the humidifying unit and the recording unit, and a second duct that supplies the humidified gas generated by the humidifying unit to the recording unit. | 05-19-2011 |
20110164101 | DRYING APPARATUS AND PRINTING APPARATUS - A drying apparatus includes: a rotatable belt which has an outer surface and an inner surface, the outer surface contacts a sheet; a blowing mechanism which blows hot air on the sheet at a side of the outer surface; and a heating unit which includes a heating element and a contact surface which is disposed in contact with the inner surface. A plurality of rollers are arranged in a direction in which the sheet travels. The rollers are pressed against the outer surface of the belt with the travelling sheet being held between the rollers and the outer surface of the belt. | 07-07-2011 |
20110211018 | INKJET RECORDING APPARATUS AND METHOD FOR CONTROLLING IT - In order to efficiently perform preliminary ejection of ink at a bend of an ink circulation passage, the number of preliminary ejections of a nozzle group located on the outer side of the bend is set larger than the number of preliminary ejections of a nozzle group located in the middle of the bend. | 09-01-2011 |
20110254903 | PRINTING APPARATUS - Provided is a printing apparatus in which bubbles in a print head are easily removed. The printing apparatus includes a first one-way valve disposed between the pump and the ink tank in the collection channel, the first one-way valve allowing movement of ink from the pump to the ink tank and blocking movement of ink from the ink tank to the pump; a circulation channel that connects the ink tank to the collection channel at a position between the pump and the first one-way valve, the circulation channel enabling circulation of ink from the ink tank, through the print head, and to the ink tank; and a second one-way valve disposed in the circulation channel, the second one-way valve allowing movement of ink from the ink tank to the pump and blocking movement of ink from the pump to the ink tank. | 10-20-2011 |
20110261102 | PRINTING APPARATUS - An apparatus includes a printing unit and a drying unit. The printing unit performs printing on a sheet using ink. The drying unit dries the sheet on which the ink is applied at the printing unit as the sheet is conveyed in the drying unit. The drying unit causes hot air heated by a heater to circulate through a housing and blows the hot air to the sheet. The housing includes an opening through which movement of gas between inside and outside the housing can be adjusted. When conveyance of the sheet in the drying unit stops, the apparatus is controlled to reduce an output of the heater and to increase the movement of the gas through the opening. | 10-27-2011 |
20110261128 | DRYING APPARATUS AND PRINTING APPARATUS - The invention provides an apparatus including: a rotatable belt having an outer surface and an inner surface, the outer surface partially coming into contact with a sheet; a plurality of rollers being arranged in a direction of movement of the sheet and including a first roller and a second roller adjacent to each other, the plurality of rollers being pressed against the outer surface and the moving sheet being nipped between the plurality of rollers and the outer surface; a blowing mechanism configured to blow hot air from between the first roller and the second roller toward the sheet; and a heating unit including a heater and a contact surface coming into contact with the inner surface, the heating unit being configured to be able to set the contact surface thereof to have a predetermined non-uniform temperature distribution. | 10-27-2011 |
20110262153 | PRINTING APPARATUS AND SHEET PROCESSING APPARATUS - At least one of processing units is capable of being pulled out of a main body of an apparatus during the occurrence of a sheet conveyance jam. A first cutter and a second cutter are arranged in the vicinity of the processing unit. The first cutter is configured to cut the sheet on an upstream of the processing unit. The second cutter is configured to cut the sheet on a downstream thereof. When the processing unit is pulled, the sheet is cut on the upstream and downstream of the processing unit. | 10-27-2011 |
20110267396 | INKJET PRINTING APPARATUS - In an inkjet printing apparatus capable of automatic duplex printing, time required to fix ink is shortened and throughput is improved without producing uneven fixing. The inkjet printing apparatus includes a printing unit that prints onto a sheet, a fixing unit that heats a sheet printed by the printing unit, a conveying unit that conveys a sheet with respect to the printing unit and the fixing unit, and a controller that controls the conveying unit such that a printing region of a sheet printed on the first side by the printing unit passes through the fixing unit, and afterwards, the conveyance direction of the sheet is reversed in order to print on the second side and the printing region once again passes through the fixing unit. The controller variably controls the conveyance speed of the sheet when the printing region once again passes through the fixing unit. | 11-03-2011 |
20110267411 | SHEET FEEDING UNIT AND PRINTER - A sheet feeding unit to be inserted between a printer main unit and a sorting unit having a plurality of discharge trays. The sheet feeding unit includes a casing in which a sheet is housed and through which a feed path and a discharge conveyance path extend horizontally. The casing has on a face thereof adjacent to the printer main unit an exit of the feed path and an entrance of the discharge conveyance path, and on a face thereof adjacent to the sorting unit an entrance of the feed path and an exit of the discharge conveyance path. The positions of the exit and entrance of the feed path coincide with each other when seen in a conveyance direction, and the positions of the entrance and exit of the discharge conveyance path coincide with each other when seen in the conveyance direction. | 11-03-2011 |
20110279525 | RECORDING APPARATUS - An apparatus includes a recording head having nozzle chips arranged in a staggered configuration along a second direction that intersects a first direction in which a sheet is conveyed, a first suction portion corresponding to a first row of nozzle chips in the staggered configuration, and a second suction portion corresponding to a second row of nozzle chips. The first suction portion and the second suction port are in a positional relationship in which they are displaced in the second direction so as to correspond to displacement between a first nozzle chip in the first row and its neighboring second nozzle chip in the second row in the second direction. The apparatus further includes a positioning member having a plurality of reference surfaces for use in positioning the recording head at different locations in a third direction that intersects the first direction and the second direction. | 11-17-2011 |
20130100217 | PRINTING APPARATUS AND SHEET DRYING DEVICE - To downsize a drying device that blows gas on a sheet to dry the sheet. A printing apparatus is provided with: a print head of an inkjet type; and a drying unit that dries a sheet printed by a print head. The drying unit has: a plurality of conveying rollers that support the sheet; a conveying belt that conveys the sheet; and a nozzle that is arranged between the plurality of conveying rollers in a direction of the conveyance of the sheet by the conveying belt and blows gas toward the sheet. The nozzle has a blowout port and the blowout port is tilted with respect to a surface of the sheet, which is supported by the conveying rollers. | 04-25-2013 |
20130100219 | SHEET CONVEYANCE APPARATUS, PRINTING APPARATUS, AND JAM CLEARING METHOD - A sheet conveyance apparatus comprising: a first processing unit including a first sheet conveyance mechanism; a second processing unit including a second sheet conveyance mechanism; a cutting unit, interposed between the first processing unit and the second processing unit, for cutting the sheet; and a controlling unit that controls, in a case of trouble with sheet conveyance, driving of the first sheet conveyance mechanism until an end of the sheet reaches the first processing unit side beyond a cutting position of the cutting unit. | 04-25-2013 |
20130106929 | INKJET RECORDING APPARATUS | 05-02-2013 |
20130208043 | PRINTING APPARATUS - A printing apparatus includes a plurality of image sensors imaging a sheet to be conveyed, and a direct sensor unit performing the signal processing of the outputs of the image sensors to detect the movement of the sheet. Here, the plurality of image sensors are provided on the carriage at least at two positions with at least the recording element array diagonally put between the two positions. The plurality of image sensors can image the sheet at two positions separated in a main scan direction and a sub-scan direction. | 08-15-2013 |
20150251865 | PRINTING APPARATUS, CONTROL METHOD THEREFOR AND STORAGE MEDIUM - A printing apparatus includes a feeding roller configured to feed a printing sheet stacked on a stacking unit, a conveyance roller configured to convey the printing sheet fed by the feeding roller, a printing unit configured to print the printing sheet conveyed by the conveyance roller, a conveyance control unit configured to control conveyance of printing sheets so that the trailing edge of a preceding sheet as a printing sheet precedingly fed from the stacking unit and the leading edge of a succeeding sheet as a printing sheet succeedingly fed from the stacking unit overlap each other, and a determination unit configured to determine whether to convey the succeeding sheet to a position facing the printing unit while keeping an overlap state between the preceding sheet and the succeeding sheet. | 09-10-2015 |
20150256694 | PRINTING APPARATUS, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM - A printing apparatus includes a first feeding roller, a feeding motor configured to drive the first feeding roller, a second feeding roller, a conveyance roller, a conveyance motor configured to drive the conveyance roller, a printing unit configured to print the printing sheet, a detection sensor configured to detect the leading edge of the printing sheet, and a control unit configured to, when the printing unit performs a printing operation on a preceding sheet, drive the feeding motor in synchronization with the conveyance motor before the detection sensor detects the leading edge of a succeeding sheet, and continuously drive the feeding motor so that the conveying speed of the succeeding sheet by the feeding motor becomes higher than that of the preceding sheet after the detection sensor detects the leading edge of the succeeding sheet. | 09-10-2015 |
Patent application number | Description | Published |
20100033276 | Electromagnetic switch equipped with built-in electronic control circuit - An electromagnetic switch is provided which is equipped with a built-in electronic control circuit working to control energization of an exciting coil. The electronic control circuit is disposed within a chamber defined by a magnetic plate to be separate from a contact chamber. In other words, the electronic control circuit is disposed between the magnetic plate and the exciting coil, thereby avoiding the adhesion of conductive dusts, as arising from the wear of contacts, to the surface of the electronic control circuit. This results in decreases in electric insulation and short-circuit of the electronic control circuit and also eliminates the need for additional special parts to electrically insulate and shield the electronic control circuit, thus permitting the electromagnetic switch to be reduced in size and produced at a decreased const. | 02-11-2010 |
20110140813 | ELECTROMAGNETIC SWITCH WITH ENHANCED STABILITY IN OPERATION - A normally-closed electromagnetic relay which may be used in controlling a supply of electric current to an automotive engine starter. The electromagnetic relay is equipped with a resistor and a shirt circuit. The short circuit is created by closing of relay contacts when a relay coil is energized to establish an electric connection between ends of the resistor to supply the current from a battery to an electric motor without flowing through the resistor and opened by opening of the relay contacts when the relay coil is deenergized to supply the electric current from the battery to the electric motor through the resistor. If a motor drive signal line leading to the electromagnetic relay is disconnected when the relay coil is kept energized, it will cause the short circuit to be established to ensure the supply of current to the motor, which also avoids the melting down of the resistor. | 06-16-2011 |
20110221210 | ENGINE STARTING SYSTEM WITH HIGH-AND LOW-SPEED MODES OF MOTOR OPERATION - An engine starting apparatus includes a first and a second power supply path extending from a battery to an electric motor to start an engine. An electromagnetic switch has main contacts disposed in the first power supply path. A resistor is disposed in the second power supply path. A motor relay has relay contacts disposed in series with the resistor. A controller delays the time when the main contacts are closed to apply a full voltage of the battery to the motor until a given time lag has elapsed after the relay contacts are closed to supply electric current to the electric motor through the resistor. Specifically, when it is required to apply the full voltage to the motor to run the motor at a rated speed, the current does not pass through the relay contacts, thus resulting in no voltage drop, which ensures the stability in starting the engine. | 09-15-2011 |
20120162847 | ELECTROMAGNETIC RELAY - An electromagnetic relay for starting a motor of a starter includes a resistor to reduce an activation current that flows through the motor from a battery for activation of the motor, a relay contact that causes the starting current to flow while bypassing the resistor, a relay coil that forms an electromagnet when excited by energization, and a control circuit that controls an excited state of the relay coil for activation of the motor to open or close the relay contact, thus controlling energization of the motor from the battery via the resistor. The electromagnetic relay incorporates therein the control circuit. | 06-28-2012 |
20150028599 | ELECTROMAGNETIC RELAY - An electromagnetic relay for starting a motor of a starter includes a resistor to reduce an activation current that flows through the motor from a battery for activation of the motor, a relay contact that causes the starting current to flow while bypassing the resistor, a relay coil that forms an electromagnet when excited by energization, and a control circuit that controls an excited state of the relay coil for activation of the motor to open or close the relay contact, thus controlling energization of the motor from the battery via the resistor. The electromagnetic relay incorporates therein the control circuit. | 01-29-2015 |