Patent application number | Description | Published |
20100171782 | IMAGE RECORDING APPARATUS - An image recording apparatus includes at least one ink jet head having a plurality of ejection ports arranged herein to eject droplets to a recording medium, a conveyance section including a conveyance surface for conveying the recording medium and to convey the recording medium in a direction different from an arrangement direction of the respective ejection ports, a suction force generation section to generate a suction force to adsorb the recording medium onto the conveyance surface, a thickness detection section to detect a thickness of the recording medium, and a control section to suppress cockling generated in the recording medium according to the thickness of the recording medium. | 07-08-2010 |
20100171783 | IMAGE RECORDING APPARATUS - An image recording apparatus includes a carrying unit that carries a recording medium in a carrying direction. A recording head records on the recording medium carried by the carrying unit by ejecting ink. An application unit applies a treatment liquid to the recording medium carried by the carrying unit. An inclination correction unit is disposed on a downstream side in the carrying direction from the application unit and an upstream side in the carrying direction from the recording head and corrects an inclination of the recording medium carried by the carrying unit. | 07-08-2010 |
20100171784 | IMAGE RECORDING APPARATUS - An image recording apparatus includes a recording head and a first conveyance unit. An applying unit applies the recording medium on the first conveyance unit with treatment liquid. One end of a second conveyance unit is connected on an upstream side from the applying unit disposed on the first conveyance unit and the other end is connected on a downstream side from the applying unit disposed on the first conveyance unit and on the upstream side from the recording head in the conveyance direction, the second conveyance unit conveying the recording medium. A conveyance switching unit is disposed on the one end of the second conveyance unit and switches conveyance of the recording medium to the applying unit side of the first conveyance unit or to the second conveyance unit side according to a content of recording data. | 07-08-2010 |
20100171787 | IMAGE RECORDING APPARATUS - An image recording apparatus includes a carrying unit that carries a recording medium in a carrying direction, and a recording head that ejects ink to the recording medium carried by the carrying unit to perform recording. An application unit is provided on an upstream side of a carrying direction from the recording head in the carrying unit and supplies a treatment liquid to predetermined division application ranges which are divided in a direction perpendicular to the carrying direction of the recording medium depending on a size of the recording medium. | 07-08-2010 |
20100171804 | IMAGE RECORDING APPARATUS - An image recording apparatus includes a conveyance unit which includes a conveyance belt and an air suction unit for sucking air through the conveyance belt to adsorb a recording medium onto the conveyance belt. A recording head ejects ink to carry out recording on the recording medium conveyed by the conveyance unit. An adsorption force adjusting unit adjusts the adsorption force for the recording medium on the conveyance belt, which occurs by sucking air, according to the size of the recording medium. | 07-08-2010 |
20100189465 | TRANSFER BELT UNIT AND METHOD FOR HOLDING THE SAME - A transfer belt unit which is mounted in an image forming device. The transfer belt unit contains a positioning member, a handle, and a guiding member. The positioning member positions the transfer belt unit with respect to the image forming device in a state where the transfer belt unit is inserted into a guide unit. The handle is placed on the rear side of the positioning member in a direction of inserting the transfer belt unit into the guide unit. The guiding member holds the transfer belt unit when the transfer belt unit is inserted into the guide unit by abutting on a guide surface of the guide unit together with the positioning member before the handle is inserted into the guide unit. | 07-29-2010 |
20100253720 | IMAGE FORMING APPARATUS AND POSITIONING UNIT - According to an example of the invention, an image forming apparatus includes, a head mounting section having a head opposed to a medium, a moving section configured to move a conveying section, which is configured to convey the medium, with respect to the head mounting section to come into contact with and separate from the head mounting section, and a positioning mechanism configured to determine positions of the conveying section and the head mounting section through engagement of a head-side engaging section formed in the head mounting section and a conveying-section-side engaging section formed in the conveying section. | 10-07-2010 |
20110007105 | INK JET APPARATUS AND LIQUID CIRCULATING METHOD - According to one embodiment an ink jet apparatus includes, an ink jet head, a first tank, a second tank, a third tank, a first flow channel, a second flow channel, and a flow control mechanism. The first tank is disposed upstream of the ink jet head with respect to a flow of ink. The second tank is disposed downstream of the ink jet head with respect to the flow of ink. The third tank is disposed downstream of the ink jet head with respect to the flow of ink. The first flow channel connects the first tank to the ink jet head and connects the ink jet head to the second tank and the third tank. The second flow channel connects the second tank and the third tank with the first tank. The flow control mechanism controls a pressure state of at least one of the second tank and the third tank. | 01-13-2011 |
20110050778 | INK JET RECORDING APPARATUS AND SHEET FEEDING METHOD OF INK JET RECORDING APPARATUS - According to one embodiment, an ink jet recording apparatus includes a first ink jet head, a second ink jet head, a main feeding passage, a first roundabout feeding passage, and a controller. The first ink jet head forms an image on a medium. The second ink jet head forms an image on the medium. The main feeding passage feeds the medium so that the first ink jet head and the second ink jet head form an image on the medium. The first roundabout feeding passage feeds the medium without allowing the medium to face the first ink jet head. The controller controls so as to feed the medium through the first roundabout feeding passage if the first ink jet head is unusable. | 03-03-2011 |
20110141180 | IMAGE FORMING APPARATUS AND METHOD OF INKJET HAVING HUMIDITY ADJUSTMENT MECHANISM - According to one embodiment, an ink-jet image forming apparatus includes an ink-jet head ejecting an aqueous ink to form an image on a surface of a recording medium, a carrying belt carrying the recording medium and at least a part of which is situated upstream from the ink-jet head in a direction of carrying the recording medium, and a solution adhering unit adhering a solution to a water-retentive surface of the carrying belt. | 06-16-2011 |
20110148997 | INK JET RECORDING APPARATUS - According to one embodiment, an inkjet recording apparatus includes a plurality of inkjet heads, a common supply pipe, a common collection pipe and an ink tank device. The common supply pipe includes an upper inner wall from one end side in a longitudinal direction to the other end side, which is inclined with respect to a horizontal direction from the one end side to the other end side if an ink flow direction and opposite direction of a gravitational force are defines as positive axes. The common collection pipe is supplied with the ink from the common supply pipe at one end side in the longitudinal direction. The ink tank device supplies the ink to the one end side of the common supply pipe, and collects the ink from the common collection pipe. | 06-23-2011 |
20110199447 | IMAGE FORMING APPARATUS AND DRYING METHOD USED IN IMAGE FORMING APPARATUS - According to one embodiment, an image forming apparatus has an image forming unit, a heat pump, and a blow-out port. The image forming unit forms an image on a medium. The heat pump generates air of a decreased low humidity. The low-humidity air generated by the heat pump is blown from the blow-out port to the medium on which the image is formed by the image forming unit. | 08-18-2011 |
20110199448 | IMAGE FORMING APPARATUS AND DRYING METHOD IN IMAGE FORMING APPARATUS - According to one embodiment, an image forming apparatus includes an image forming unit, a tray, a heating mechanism, a blower, and a body casing. The image forming unit forms an image on an image forming medium. The tray stacks the image forming medium, having an image formed thereon by the image forming unit, on the tray. The heating mechanism warms air. The blower sends out the air warmed by the heating mechanism. The body casing has a discharge opening. The discharge opening is used to discharge the air sent from the blower to the image forming medium stacked on the tray. | 08-18-2011 |
20110279495 | INK JET RECORDING APPARATUS - According to one embodiment, an ink jet recording apparatus includes an ink jet head, a first tank arranged above the ink jet head and configured to store ink to be supplied to the ink jet head, a first tank valve that opens and closes in order to switch the inside of the first tank to be opened to or shut off from the atmosphere, a second tank arranged below the ink jet head and configured to store the ink collected from the ink jet head, a second tank valve that opens and closes in order to switch the inside of the second tank to be opened to or shut off from the atmosphere, a pipe configured to connect the ink jet head, the first tank, and the second tank and form a part of a circulation shape, a pump provided in the pipe between the first tank and the second tank, a passive pressure adjusting device connected to the second tank, arranged below the first tank, and configured to generate negative pressure using the gravity, and a third tank valve provided between the second tank and the passive pressure adjusting device. | 11-17-2011 |
20110290137 | IMAGE FORMING APPARATUS - According to one embodiment, an image recording apparatus includes a printing unit and an entry angle changing mechanism. The entry angle changing mechanism is disposed further along the upstream than the printing unit in a conveying direction and changes the entry angle of the paper with an upper surface not printed and a lower surface printed, after printing on the first surface if printing on both sides is performed by the printing unit. | 12-01-2011 |
20110310157 | INKJET IMAGE FORMING APPARATUS AND INKJET IMAGE FORMING METHOD - According to one embodiment, an inkjet image forming apparatus includes a transport section configured to adsorb a recording medium by suction to transport the recording medium under inkjet heads, and a controller configured to perform control in a manner that an adsorption force to the recording medium if the image is formed on a second surface of the recording medium is larger than an adsorption force to the recording medium if the image is formed on a first surface of the recording medium. | 12-22-2011 |
20110310169 | INKJET HEAD UNIT - According to one embodiment, a maintenance unit includes an inkjet head and a cap. The inkjet head includes plural nozzle arrays and discharges a different color of ink from each of the plural nozzle arrays. The cap includes plural protrusions at positions facing the plural nozzle arrays, includes a groove between the plural protrusions, and tightly closes the plural nozzle arrays with the plural protrusions. | 12-22-2011 |
20110316913 | IMAGE FORMING APPARATUS - According to one embodiment, an image forming apparatus includes a support table, a printing head, and a cleaner. The support table rotates around an axis. The printing head faces the support table. The cleaner includes a web coming into contact with the support table. | 12-29-2011 |
20120068401 | HOLDING DEVICE OF RECORDING MEDIUM, IMAGE FORMING APPARATUS, AND CONVEYING METHOD OF RECORDING MEDIUM - According to one embodiment, the image forming apparatus includes, an endless device having a plurality of suction holes, and a negative pressure chamber which communicates with the suction holes, a rotation mechanism which rotates the endless device, a suction mechanism which discharges air in the negative pressure chamber, an opening and closing mechanism which has a switching blade which opens and closes the suction holes, a driving mechanism which moves the switching blade to a first position and a second position, a recording head unit, a supply mechanism which supplies the recording medium to the endless device, and a controller. If the switching blade moves to the first position, the suction holes are shut. If the switching blade moves to the second position, the suction holes communicate with the negative pressure chamber. The controller drives the opening and closing mechanism according to the size of the recording medium. | 03-22-2012 |
20120069113 | IMAGE FORMING APPARATUS, MEDIUM PROCESSING APPARATUS, AND IMAGE FORMING METHOD - According to one embodiment, an image forming apparatus includes a retaining roller, a triboelectric charging device, and an inkjet head. The retaining roller includes a first charging section including a first dielectric and a second charging section including a second dielectric, which have different triboelectric charging characteristics, alternately on the surface of the retaining roller, retains a recording medium on the surface, and rotates. The triboelectric charging device charges the surface of the retaining roller by friction. The inkjet head forms an image on the recording medium retained on the surface of the retaining roller. | 03-22-2012 |
20120069114 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - According to one embodiment, an image forming apparatus includes a retaining roller, a nipping device, a retaining device, an image forming head, and a controller. The retaining roller retains a recording medium and rotates. The nipping device is capable of operating to open and close and holds the recording medium between the nipping device and the surface of the retaining roller to mechanically retain the recording medium. The retaining device retains the recording medium on the surface of the retaining roller. The controller controls, on the basis of a condition for use of the recording medium, the nipping device to nip the recording medium between the nipping device and the surface of the retaining roller. | 03-22-2012 |
20120092431 | RECORDING MEDIUM CARRYING DEVICE, IMAGE FORMING APPARATUS, AND RECORDING MEDIUM CARRYING METHOD - According to one embodiment, an apparatus includes a leading end gripper and a trailing end gripper provided on a drum. The leading end gripper is moved by a leading end gripper driving mechanism. The trailing end gripper switches between a standby position where this gripper is stopped relatively to the rotating drum and a grip position where this gripper rotates with the drum. The leading end gripper and a recording medium pass through an inside of the trailing end gripper stopped in the standby position. If a trailing end of the recording medium reaches the trailing end gripper, the trailing end gripper is released and switches to the grip position. Thus, the trailing end of the medium is held on the drum by the trailing end gripper. The trailing end gripper moves in a rotating direction of the drum while continuing nipping the trailing end of the medium. | 04-19-2012 |