Patent application number | Description | Published |
20080205954 | IMAGE RECORDING APPARATUS - In an image recording apparatus according to an aspect of the invention, a recording medium is allowed to be conveyed on a conveying path. An inversion guide portion connects a first portion of the conveying path positioned downstream of a recording unit to a second portion of the conveying path positioned upstream of the recording unit. A path changeover unit is disposed at the first portion of the conveying path and swingable between a recording medium discharge position and a recording medium inversion position. When the path changeover unit is positioned at the recording medium discharge position, the forward rotation of the roller pair allows the recording medium to be sent to a discharge portion. When the path changeover unit is positioned at the recording medium inversion position, the rearward rotation of the roller pair allows the recording medium to be sent to the inversion guide portion. | 08-28-2008 |
20080239047 | IMAGE RECORDING APPARATUS - An image recording apparatus including a feeding device feeding a recording medium in a first direction along a first path, a recording portion disposed in the first path and located between an upstream and a downstream connecting portion of the first path to record an image on the medium, a second path connecting the downstream connecting portion to the upstream connecting portion, a path switching portion including a roller pair disposed downstream of the downstream connecting portion in the first direction and being capable of (i) ejecting the medium such that a first edge thereof is the leading edge, by rotating in a forward direction while the medium is nipped therebetween, and (ii) feeding the medium into the second path such that a second edge thereof opposite to the first edge is the leading edge, by rotating in a reverse direction while the medium is nipped therebetween, a feed roller disposed in the second path and feeding the medium in a second direction along the second path, into the first path at the upstream connecting portion, and a momentary-forward-rotation controller which implements, while the roller pair is feeding the recording medium into the second feed path and before the feed roller initiates the feeding of the recording medium toward the upstream connecting portion of the first path, a momentary forward rotation of the roller pair by temporarily switching the rotation direction of the roller pair to the forward direction from the reverse direction in order to feed the recording medium in a direction opposite to the second feeding direction. | 10-02-2008 |
20090026685 | IMAGE RECORDING DEVICE - An image recording device includes: a tray having a placing surface; a feed unit comprising a rotating member configured to move in a first direction away from the placing surface of the tray and move in a second direction toward the placing surface of the tray; a frictional member disposed on the placing surface; a recording unit; a conveying unit configured to return the sheet, on one side of which the image has been recorded by the recording unit, to the placing surface; and a moving mechanism configured to move the rotating member in the first direction and in the second direction. The moving mechanism is configured to move the rotating member in the first direction before a leading end of the sheet returned by the conveying unit reaches the frictional member in a state where no sheet is placed on the tray. | 01-29-2009 |
20090051720 | IMAGE RECORDING APPARATUS - An image recording apparatus according to an aspect of the invention comprises a first roller pair disposed downstream of a recording unit; a second roller pair disposed downstream of the first roller pair; an inversion guide portion that connects a downstream portion of a conveying path positioned downstream of the recording unit to an upstream portion of the conveying path positioned upstream of the recording unit; a path changeover unit configured to send the recording medium conveyed from the recording unit with a first end as a leading end to the inversion guide portion with the second end as a leading end. In a stop operation, rotation of the first roller pair and the second roller pair stops in a state where the first roller pair nips a vicinity of the second end of the recording medium and the second roller pair also nips the recording medium. | 02-26-2009 |
20090085948 | IMAGE RECORDING APPARATUS - An image recording apparatus configured to record images on front and back surfaces of a sheet, including: a head which ejects ink onto the sheet for recording; a sheet-supply roller which contacts the sheet so as to transfer the sheet for supplying to the head; a sheet-supply path which is provided between the sheet-supply roller and the head, which has a U-shape, and through which the sheet is transferred such that one of surfaces thereof opposite to the other of the surfaces contacted by the sheet-supply roller faces the head; and a sheet-stopping control section configured to control the sheet-supply roller such that the sheet transferred by the sheet-supply roller is stopped for a first time in the sheet-supply path in a state in which the sheet is deformed so as to have a U-shape, after an image has been recorded on the front surface of the sheet and before an image is recorded on the back surface thereof. | 04-02-2009 |
20090085949 | IMAGE RECORDING APPARATUS - An image recording apparatus configured to record images on a front surface and a back surface of a recording sheet, the image recording apparatus including: a recording head which ejects ink onto the recording sheet for recording; and a controller configured to execute controls for operations of the image recording apparatus, wherein the controller includes a sheet-stopping control section configured to execute a control for stopping the recording sheet for a specific time after the image has been recorded on the front surface of the recording sheet and before the image is recorded on the back surface of the recording sheet, and wherein the image recording apparatus further comprises a biasing device configured to bias the recording sheet, so as to retain the recording sheet in a specific shape, in a state in which the recording sheet is stopped by the control of the sheet-stopping control section. | 04-02-2009 |
20090087239 | IMAGE RECORDING APPARATUS - An image recording apparatus which records images on front and back surfaces of a sheet, including: a head which ejects ink onto the sheet for recording; a sheet-supply roller which contacts the sheet to transfer the sheet for supplying to the head; sheet-transfer rollers which are disposed on a downstream side of the head so as to be rotatable forwardly and reversely, and which transfer the sheet passed through the head while nipping the sheet, toward an outside of the image recording apparatus when forwardly rotated or toward the sheet-supply roller when reversely rotated such that the sheet is permitted to be again supplied to the head by the sheet-supply roller; a sheet-return path which is branched from a connecting path that connects the sheet-transfer rollers and the head so as to extend toward the sheet-supply roller, and through which the sheet is transferred toward the sheet-supply roller by the reverse rotations; and a roller-driving control section which drives the sheet-transfer rollers and the sheet-supply roller such that the sheet is transferred through the sheet-return path in a state in which the sheet is warped. | 04-02-2009 |
20090169280 | IMAGE RECORDING APPARATUS - The image recording apparatus includes: a recording head; a re-feeding roller configured to re-feed a one-side recorded medium toward the recording head; and a flap provided on an upstream side of the re-feeding roller in a conveying direction of the one-side recorded medium. The flap extends from an upstream end to a downstream end in the conveying direction. The downstream end of the flap is closer to the re-feeding roller than the upstream end in the conveying direction. The flap is configured to support and introduce the one-side recorded medium to the re-feeding roller. A downstream end portion of the flap has: a first region opposing the re-feeding roller; and a second region except the first region. The downstream end portion has a cutout portion provided in at least a part of the second region. | 07-02-2009 |
20090218754 | SHEET ACCOMMODATING DEVICE AND IMAGE RECORDING APPARATUS - A sheet accommodating device including: a tray configured to accommodate a sheet; and a pressing member configured to press the sheet accommodated in the tray, wherein the pressing member includes a guide portion configured to guide, where the sheet accommodated in the tray is transferred, the transferred sheet toward a downstream side in a sheet transferring direction in which the sheet is transferred. | 09-03-2009 |
20100078871 | SHEET CONVEYING DEVICE AND IMAGE RECORDING APPARATUS COMPRISING SHEET CONVEYING DEVICE - A sheet conveying device includes a feed tray including a bottom plate configured to hold a sheet, a feed roller configured to feed the sheet in a first direction from the feed tray to a first conveying path, and a pressing member configured to press the sheet in the feed tray against the bottom plate of the feed tray. The pressing member includes a contact portion configured to contact the sheet in the feed tray, and a first guide positioned at a downstream end of the pressing member in the first direction. The first guide extends between the downstream end and the contact portion obliquely with respect to the bottom plate, such that a distance between the bottom plate and the first guide increases along the first direction. The first guide is positioned upstream of the feed roller in the first direction. | 04-01-2010 |
20100079529 | IMAGE RECORDING APPARATUS - An image recording apparatus including a recording head, a feeding mechanism feeding a recording medium such that a second surface is opposed to the head, a first-area determining portion determining a first area, a second-area determining portion determining a second area, a contact-position determining portion determining a contact position on a first surface at which position a roller contacts the first surface, a feed controller capable of controlling feeding of the medium such that where the second surface is opposed to the head, the recording on the second surface is implemented with the second area skipped, and a judging portion determining whether the contact position is included in the first area at the moment of initiation of a skip operation. The feed controller controls an acceleration or a speed at which the medium is fed in the skip operation, on the basis of the determination made by the judging portion. | 04-01-2010 |
20100244362 | SHEET CONVEYING DEVICE AND IMAGE RECORDING APPARATUS COMPRISING SHEET CONVEYING DEVICE - A first convey roller conveys a sheet in a sheet conveying direction such that a leading edge of the sheet passes through a nip of a second convey roller disposed downstream from the first convey roller. The second convey roller rotates in a reverse direction by a first rotation amount corresponding to a first linear distance to convey the sheet in a direction opposite to the sheet conveying direction, such that the leading edge of the sheet is released from the nip of the second convey roller. In response to the rotation of the second convey roller in the reverse direction, the first convey roller rotates by a second rotation amount corresponding to a second linear distance in the reverse direction to convey the sheet in the direction opposite to the sheet conveying direction, such that the leading edge of the sheet contacts the nip of the second convey roller when the first convey roller has rotated by the second rotation amount and the second convey roller has rotated by the first rotation amount. | 09-30-2010 |
20110273524 | IMAGE RECORDING APPARATUS - An image recording apparatus configured to record images on front and back surfaces of a sheet, including: a head which ejects ink onto the sheet for recording; a sheet-supply roller which contacts the sheet so as to transfer the sheet for supplying to the head; a sheet-supply path which is provided between the sheet-supply roller and the head, which has a U-shape, and through which the sheet is transferred such that one of surfaces thereof opposite to the other of the surfaces contacted by the sheet-supply roller faces the head; and a sheet-stopping control section configured to control the sheet-supply roller such that the sheet transferred by the sheet-supply roller is stopped for a first time in the sheet-supply path in a state in which the sheet is deformed so as to have a U-shape, after an image has been recorded on the front surface of the sheet and before an image is recorded on the back surface thereof. | 11-10-2011 |
20110292147 | TRANSPORTING APPARATUS AND PRINTER USING THE SAME - There is provided a transporting apparatus which includes a pair of transporting rollers including drive and driven rollers; a transporting path including a curved portion which changes a transporting direction of the transporting medium; a movable member which is changeable to a first attitude forming an outer side of the curved portion to guide the transporting medium, and a second attitude opening the curved portion not to form the outer side of the curved portion. The movable member has a guiding portion which guides the transporting medium between the pair of transporting rollers, in the first attitude, and a positioning portion which positions the guiding portion with respect to a shaft of the drive roller in the first attitude, and which is separated from the shaft of the drive roller in the second attitude. | 12-01-2011 |
20110309570 | SHEET GUIDE AND IMAGE RECORDING APPARATUS - A sheet guide includes a base on which a sheet is placed; a pinion which is rotatably provided on the base; a pair of racks which are extended in a sliding direction, which sandwich the pinion therebetween, which are engaged with the pinion to move opposite to each other in the sliding direction; a pair of positioning members which are provided at one end portions of the pair of racks respectively, and which come closer and move away from each other by movement of the pair of racks to position the sheet in the sliding direction; a sliding guide which is formed in the base and which guides the pair of racks in the sliding direction; and a pressing member which is provided on the base and which presses a portion of at least one rack of the racks to urge the at least one rack against the pinion. | 12-22-2011 |
20120074637 | IMAGE RECORDING APPARATUS - An image recording apparatus including: (a) a recording portion for recording image on a top face of a sheet; (b) a supplying roller which is to be in contact with a bottom face of the sheet held in a tray and which is configured to supply the sheet toward a curved conveyance path; (c) a drive roller which is to be in contact with the top face of the sheet and which is configured to convey the sheet supplied from the supplying roller; and (d) a controlling portion which is configured, upon receipt of a command requesting start of conveyance of the sheet, to cause the supplying roller to be rotated without causing the drive roller to be rotated, and is configured, upon judgment that a leading end portion of the sheet has reached a flat surface extending away from the drive roller toward the recording portion, to cause the drive roller to be rotated. | 03-29-2012 |
20130140761 | Image Forming Device Capable of Stably Feeding Recording Sheet - An image forming device includes: a feeding roller; a support shaft; a support portion; a drive shaft; a planetary gear unit; and a driving force transmission unit. The support portion rotatably supports the feeding roller and is pivotally movably supported to the support shaft. The drive shaft is rotatable upon receipt of a driving force from a motor. The planetary gear unit includes a sun gear rotatable integrally with the drive shaft, and a planetary gear swingably movable about the sun gear while maintaining meshing engagement therewith. The transmission unit includes an input gear meshingly engageable with the planetary gear when the drive shaft rotates. The transmission unit transmits the driving force to the feeding roller through the drive shaft, the sun gear, the planetary gear, and the input gear. | 06-06-2013 |
20130154183 | SHEET GUIDE AND IMAGE RECORDING APPARATUS - A sheet guide includes a base on which a sheet is placed; a pinion which is rotatably provided on the base; a pair of racks which are extended in a sliding direction, which sandwich the pinion therebetween, which are engaged with the pinion to move opposite to each other in the sliding direction; a pair of positioning members which are provided at one end portions of the pair of racks respectively; a sliding guide which is formed in the base and which guides the pair of racks in the sliding direction; and a contact portion which is provided at a side of at least one rack of the racks; a first supporting member configured to press the contact portion to urge the at least one rack against the pinion; and a second supporting member configured to support the other end portion of the at least one rack. | 06-20-2013 |
20130249161 | SHEET CONVEYING DEVICE AND IMAGE RECORDING DEVICE - A first guide member and a second guide member define therebetween a first path. The second guide member and a third guide member define therebetween a second path. The second guide member pivots between a first position in which a first contact surface of a contact portion thereof is in contact with the first guide member, and a second position in which the first contact surface is separated from the first guide member. The third guide member pivots between a third position in which a third contact surface thereof is in contact with the second contact surface of the second guide member in the first position, and a fourth position in which the third contact surface is separated from the second guide member. The first, second, and third contact surfaces are disposed outer than the first path and the second path in a direction perpendicular to a sheet conveying direction. | 09-26-2013 |
20130277170 | Image Recording Apparatus - An image recording apparatus includes an apparatus main-body, a tray, a first transporting path including a curved portion and an extending portion connected to the curved portion, a feed roller which feeds a sheet from the tray to the first transporting path, a transporting roller which transports the sheet, a recording portion which records an image on the sheet transported through the extending portion, a first guide member defining an outer wall of the curved portion, a second guide member defining an inner wall of the curved portion, a second transporting path which connects a portion of the extending portion and a portion of the curved portion, a third guide member defining an upper wall of the second transporting path, a fourth guide member defining a lower wall of the second transporting path, and a fifth guide member provided to a rotating front-end side of the fourth guide member. | 10-24-2013 |
20140246828 | Image Forming Device Capable of Stably Feeding Recording Sheet - An image forming device includes: a tray; an image fanning unit; a drive source; a feeding roller; a support portion; a support shaft; and a drive shaft. The tray is configured to support a recording sheet. The image forming unit is configured to form an image on the recording sheet. The drive source is configured to generate a driving force The feeding roller is configured to rotate upon receipt of the driving force to feed the recording sheet supported by the tray toward the image forming unit. The support portion is configured to rotatably support the feeding roller. The support shaft is disposed above the tray and configured to pivotally movably support the support portion. The drive shaft is independent of the support shaft and configured to rotate upon receipt of the driving three from the drive source. | 09-04-2014 |
20140291917 | SHEET TRANSPORT APPARATUS AND IMAGE RECORDING APPARATUS - A sheet transport apparatus includes a first casing in which a transport path is formed; a transport unit which transports a sheet along the transport path; a second casing which is provided to be movable with respect to the first casing; a sheet support unit which is rotatably provided in the first casing at a position on a side to which the second casing is moved, the sheet support unit being changeable between a first state, a second state, and a third state and supporting the sheet at least in the third state; and an urging unit which urges the sheet support unit toward the first state within a range from the first state to the second state and which urges the sheet support unit toward the third state within a range from the second state to the third state. | 10-02-2014 |
20140292971 | IMAGE RECORDING APPARATUS - An image recording apparatus includes: an apparatus casing in which a transport path for transporting a sheet is formed; a first sheet support unit having a first support surface configured to support the sheet; a feed unit configured to feed the sheet supported by the first support surface to the transport path; a second sheet support unit having a second support surface configured to support the sheet; a transport unit configured to transport the sheet from the first and second sheet support units via the transport path; and a recording unit configured to record an image on the sheet transported by the transport unit in the transport path. The first and second sheet support units are arranged on one side surface of the apparatus casing, and the first and second support surfaces are configured to incline with respect to a placement surface on which the apparatus casing is placed. | 10-02-2014 |