Abstract: The invention provides a liquid ejecting apparatus that includes: a main scan section that scans the liquid ejecting head in a main scan direction; a sub scan section that scans the ejection target medium in a sub scan direction, the sub scan section including a pair of transport rollers and a pair of ejection rollers; and a controlling section that acquires, an expected timing of a switchover between a state in which the ejection target medium is nipped by both of the pair of transport rollers and the pair of ejection rollers and a state in which the ejection target medium is nipped by only one of the pair of transport rollers and the pair of ejection rollers, and that changes an ejecting condition, during a plurality of main scan operations in a transition interval that is set around the expected timing.

Abstract: A printing medium feeding device includes: a driving roller having a roller circumferential surface coming in contact with a printing medium to apply a feeding force to the printing medium around a core line of a rotation shaft and rotating to feeding the printing medium downstream; a driven roller in contact with the driving roller and following the rotation thereof; a shaft supporting member supporting the rotation shaft at least at two supporting positions; and a regulation unit regulating a core position of the rotation shaft between the two supporting positions at which the rotation shaft is supported by the shaft supporting member, wherein the regulation unit has a pressing surface coming in contact with the rotation shaft from the upstream side or the downstream side of the rotation shaft, and wherein the core position of the rotation shaft at the position of the regulation unit is located by the pressing surface to be more downstream than a straight line passing through the core positions of the ro

Abstract: A recording apparatus includes a recording unit that performs recording on a recording medium; a transporting unit disposed upstream of the recording unit and transporting the recording medium downstream; a first guide member and a second guide member disposed facing the first guide member, the first and second guide members having an upstream section of a transport path of the recording medium disposed therebetween; and an optical sensor including a light-emitting portion and a light-receiving portion and having an optical axis that traverses the transport path of the recording medium between the first and second guide members. At least one of the light-emitting portion and the light-receiving portion projects from an outer side of the transport path towards the first guide member. The first guide member has a cutout having an opening that faces the second guide member. The cutout has the light-emitting portion or the light-receiving portion disposed therein.

Abstract: A roller for transporting a recording medium includes an inner layer having a shaft hole through which a rotating shaft passes; and an outer layer formed outside the inner layer and brought into contact with the recording medium. At least a first end surface of the inner layer in a direction along the rotating shaft is located inside the outer layer remote from end surfaces of the outer layer in the direction along the rotating shaft.

Abstract: An auxiliary roller is disposed in the proximity of sides of feed rollers and in the proximity upward from a separation pad. At the print time, the auxiliary roller is slightly projected toward the side of print sheet from roller faces of the feed rollers. The auxiliary roller is displaced as paper is displaced in a stack direction of the paper, and can be freely rotated. A hopper is moved up, paper is pressed against the feed rollers, and the separation pad abuts the feed rollers. Then, the feed rollers and a transport roller are rotated forward for feeding the paper to the transport roller. Further, the paper is sent from the transport roller at a distance equal to or greater than the length along the feeding path between the position of the front end of paper placed in a paper feed tray and the abutment center point of the separation pad and the feed rollers. Subsequently, the feed rollers and the transport roller stop, the hopper is moved down, and the separation pad is brought away from the feed rollers.

Abstract: Springs 34 and 35 are located on the back face of a paper cassette, between a movable plate 32 and a bar 31, coupled with a side edge aligner 27. A slot extending in the direction in which a spring load is generated is formed in the movable plate, and a hook portion is formed at the end of the spring in the direction in which the spring is extended or contracted. The length of the slot and the length of the spring end in the direction in which the spring load is generated differ for the individual springs, and correspond to the distance the movable plate is displaced. That is, a size difference is defined for each spring until the spring load is applied. During the insertion of the paper cassette, the movable plate is displaced by the mechanism constituted by the groove cam 41 and the boss 36a, and in accordance with the displacement, different spring loads are multiply applied the paper side edge aligning member via the bar.

Abstract: A printer wherein a drive roller of a pair of sheet discharge rollers is made of rubber and a driven roller of the pair of sheet discharge rollers is made of synthetic resin; the leading end of a sheet is guided so as to be abutted against the drive roller earlier than the driven roller; the sheet that is in the course of being discharged is guided by a sheet discharge tray so as to come in slidable contact with an edge portion that is on a print head side of a sheet discharge opening. As a result, the printer can provide satisfactory printing conditions quickly with a simple structure and reduce noise leaking from the sheet discharge opening.

Abstract: An auxiliary roller is disposed in the proximity of sides of feed rollers and in the proximity upward from a separation pad. At the print time, the auxiliary roller is slightly projected toward the side of print sheet from roller faces of the feed rollers. The auxiliary roller is displaced as paper is displaced in a stack direction of the paper, and can be freely rotated. A hopper is moved up, paper is pressed against the feed rollers, and the separation pad abuts the feed rollers. Then, the feed rollers and a transport roller are rotated forward for feeding the paper to the transport roller. Further, the paper is sent from the transport roller at a distance equal to or greater than the length along the feeding path between the position of the front end of paper placed in a paper feed tray and the abutment center point of the separation pad and the feed rollers. Subsequently, the feed rollers and the transport roller stop, the hopper is moved down, and the separation pad is brought away from the feed rollers.

Abstract: Springs 34 and 35 are located on the back face of a paper cassette, between a movable plate 32 and a bar 31, coupled with a side edge aligner 27. A slot extending in the direction in which a spring load is generated is formed in the movable plate, and a hook portion is formed at the end of the spring in the direction in which the spring is extended or contracted. The length of the slot and the length of the spring end in the direction in which the spring load is generated differ for the individual springs, and correspond to the distance the movable plate is displaced. That is, a size difference is defined for each spring until the spring load is applied. During the insertion of the paper cassette, the movable plate is displaced by the mechanism constituted by the groove cam 41 and the boss 36a, and in accordance with the displacement, different spring loads are multiply applied the paper side edge aligning member via the bar.

Abstract: An ink jet recording method ejecting already printed sheets stacked one on top of another, wherein: a period T, necessary for ink printed on a former sheet to be fixed enough that it does not adhere to a successive sheet stacked on top of the former sheet is set; an elapsed period tn is measured from a point in time when printing of the former sheet is completed; the elapsed period is compared with a set period when the successive sheet is ejected; and if the elapsed period has not reached the set period, the successive sheet is ejected by an intermittent feeding operation in which the successive sheet slidingly contacts the former sheet at a point in time when the elapsed period exceeds the set period.

Abstract: A sheet feeder, or a printer incorporating the sheet feeder, has separation pads for separating a sheet to be fed by sheet feed rollers from the next sheet and a roller spring which produce urging force smaller than that produced by a spring of the separation pad. Idle rollers are brought into contact with the separation pads by means of the roller spring, thereby preventing the lowering of the next sheet. A sheet reset lever is pivoted so as to return the next sheet to a hopper. As a result, the sheet sheets stacked on the hopper in an inclined state is fed one by one through use of a separation pad method without increasing force for driving rollers and a back tension.

Abstract: A paper discharge section for a printer having a printer body includes first and second support portions mounted on the printer body. At least one of the support portions is slidable towards and away from the other support portion. A paper pushing down portion is mounted on the printer body and positioned intermediate the support portions. The first support portion can rotate between at least a first position at which the first support portion supports a first bottom side portion of the sheet of paper and at least a second position in which the first support portion does not support the first bottom side portion of a sheet of paper. A slidable edge guide for guiding a first side edge of a sheet of paper is provided and slidable towards the other edge guide. A linkage mechanism links the slidable edge guide to the first support portion to cause the first edge guide and first support portion to slide together.

Abstract: A paper discharge section for a printer having a printer body includes first and second support portions mounted on the printer body. At least one of the support portions is slidable towards and away from the other support portion. A paper pushing down portion is mounted on the printer body and positioned intermediate the support portions. The first support portion can rotate between at least a first position at which the first support portion supports a first bottom side portion of the sheet of paper and at least a second position in which the first support portion does not support the first bottom side portion of a sheet of paper. A slidable edge guide for guiding a first side edge of a sheet of paper is provided and slidable towards the other edge guide. A linkage mechanism links the slidable edge guide to the first support portion to cause the first edge guide and first support portion to slide together.

Abstract: A printer wherein a drive roller of a pair of sheet discharge rollers is made of rubber and a driven roller of the pair of sheet discharge rollers is made of synthetic resin; the leading end of a sheet is guided so as to be abutted against the drive roller earlier than the driven roller; the sheet that is in the course of being discharged is guided by a sheet discharge tray so as to come in slidable contact with an edge portion that is on a print head side of a sheet discharge opening. As a result, the printer can provide satisfactory printing conditions quickly with a simple structure and reduce noise leaking from the sheet discharge opening.

Abstract: A paper discharge section for a printer having a printer body includes first and second support portions mounted on the printer body. At least one of the support portions is slidable towards and away from the other support portion. A paper pushing down portion is mounted on the printer body and positioned intermediate the support portions. The first support portion can rotate between at least a first position at which the first support portion supports a first bottom side portion of the sheet of paper and at least a second position in which the first support portion does not support the first bottom side portion of a sheet of paper. A slidable edge guide for guiding a first side edge of a sheet of paper is provided and slidable towards the other edge guide. A linkage mechanism links the slidable edge guide to the first support portion to cause the first edge guide and first support portion to slide together.

Abstract: A sheet feeder assembly including and a sheet feed roller for feeding a sheet of paper in a sheet feeding direction. A sheet support is spaced apart from the sheet feed roller for supporting the sheet of paper thereon. A retaining plate is mounted on the sheet support. A hopper is displaceable between a first position spaced apart from the sheet feed roller so that the paper supported on the hopper cannot contact the sheet feed roller and at least a second position where the leading edge of the sheet of paper can contact the sheet feed roller so that the paper is urged towards the sheet feed roller.

Abstract: A printer which is compact, can accurately supply paper and has reduced noise characteristics. Additionally, the printer enables easy correction of paper jams and can be selectively operated in various modes according to the user's preference. The printer includes a paper feed roller which is pivotable between a paper feed position and a non-feeding position, a drive force transmitting mechanism for transmitting a drive force to the paper feed roller, a carriage reciprocatively movable along the width of the paper fed by the paper feed roller, and an intermediate transmission mechanism attached to the side of the carriage. Only when the carriage is in a stand-by position, the intermediate transmission mechanism couples with the drive force transmitting mechanism to transmit to the paper feed roller a paper-feed directional rotating force so as to rotate the paper feed roller to the paper feed position.

Abstract: A printer which is compact, can accurately supply paper and has reduced noise characteristics. Additionally, the printer enables easy correction of paper jams and can be selectively operated in various modes according to the user's preference. The printer includes a paper feed roller which is pivotable between a paper feed position and a non-feeding position, a drive force transmitting mechanism for transmitting a drive force to the paper feed roller, a carriage reciprocatively movable along the width of the paper fed by the paper feed roller, and an intermediate transmission mechanism attached to the side of the carriage. Only when the carriage is in a stand-by position, the intermediate transmission mechanism couples with the drive force transmitting mechanism to transmit to the paper feed roller a paper-feed directional rotating force so as to rotate the paper feed roller to the paper feed position.

Abstract: A printer which is compact, can accurately supply paper and has reduced noise characteristics. Additionally, the printer enables easy correction of paper jams and can be selectively operated in various modes according to the user's preference. The printer includes a paper feed roller which is pivotable between a paper feed position and a non-feeding position, a drive force transmitting mechanism for transmitting a drive force to the paper feed roller, a carriage reciprocatively movable along the width of the paper fed by the paper feed roller, and an intermediate transmission mechanism attached to the side of the carriage. Only when the carriage is in a stand-by position, the intermediate transmission mechanism couples with the drive force transmitting mechanism to transmit to the paper feed roller a paper-feed directional rotating force so as to rotate the paper feed roller to the paper feed position.