摘要:
A sheet feed device includes a first sheet cassette including an accommodating portion configured to accommodate a first plurality of sheets, and a second sheet cassette disposed on the first sheet cassette and including a holding portion configured to hold a second plurality of sheets, in which one or more characteristics of the first plurality of sheets is different than one or more characteristics of the second plurality of sheets. The sheet feed device also includes a sheet feeder including a sheet feed roller, and the sheet feed device is configured to selectively feed the first plurality of sheets and the second plurality of sheets in a sheet feed direction toward a recording unit. Moreover, the sheet feed device includes a sheet separator configured to separate, one by one, the sheets fed by the sheet feeder. Specifically, the second sheet cassette is configured to move above the accommodating portion of the first sheet cassette and with respect to the sheet feeder, and the sheet feed roller is configured to contact the second plurality of sheets on the holding portion that is inclined so as to increase in height in a direction toward the sheet separator.
摘要:
An image forming apparatus including: a print part; a feeding part; a first sheet feeding tray; and a second sheet feeding tray. The first sheet feeding tray stores a sheet of a first size therein, the feeding part feeding the sheet of the first size from the first sheet feeding tray to the print part in a sheet feeding direction. The second sheet feeding tray is mounted on the first sheet feeding tray and stores a sheet of a second size smaller than the first size therein, the feeding part feeding the sheet of the second size from the second sheet feeding tray to the print part in the sheet feeding direction, the second sheet feeding tray receiving a sheet printed by the print part and discharged in a direction opposite to the sheet feeding direction. The second sheet feeding tray has a pair of side guides which are provided in parallel to the sheet feeding direction and which contact against side ends of the sheet of the second side to guide the sheet of the second side to the print part. At least one of the pair of side guides is provided with a plate part which extends from an upper edge of the side guide to the other side guide and which receives the printed sheet thereon. The plate part has a backward-feed prevention part which prevents the printed sheet from being fed to the print part again.
摘要:
An image forming apparatus and a sheet cassette are provided. The image forming apparatus includes a first tray that accommodates sheets; a first transfer path; a forming unit; an arm that can be pivoted; a roller that is rotatably provided at a leading end of the arm and feeds the sheets; a second tray that is provided on the first tray to form a two-stage structure, and can slide in a direction in which the second tray comes into contact with or is separated from the arm; and a cleaning member that is provided on the second tray and cleans the roller. The arm changes posture between a first posture in which the roller is supported upward by the first tray and a second posture in which the roller comes into pressure contact with the cleaning member.
摘要:
A sheet feeder comprising: a cassette; a feed roller; a sloping separation plate provided on a downstream side of the cassette in a sheet feeding direction; and a separation member that includes a first separation claw and second separation claw, the first separation claw being closer a bottom surface of the cassette than the second separation claw, the separation member and the feed roller cooperating with each other to separate and feed the sheets, sheet by sheet; wherein the sloping separation plate has openings so as to allow distal projecting portions of the first separation claw and second separation claw to project through the sloping separation plate, respectively, and wherein, a first angle formed between the distal projecting portion of the first separation claw and the sloping separation plate is larger than a second angle formed between the distal projecting portion of the second separation claw and the sloping separation plate.
摘要:
A sheet tray device including (a) a first tray and (b) a second tray which is disposed on an upper side of the first tray and which includes (b-1) a support member which bridges between opposite side walls of the first tray and which is movable relative to the opposite side walls, and (b-2) a supported body pivotably supported by the support member. Each of the opposite side walls includes a first rail portion and a second rail portion that is located on an upper side of the first rail portion. The support member includes (i) a main slide portion that is slidably held in contact with an upper surface of the first rail portion, (ii) a removal-preventing slide portion that extends through a space between the first and second rail portions, and (iii) a rotation-preventing slide portion that is slidably held in contact with a side surface of the first rail portion. Also disclosed is an image forming apparatus including the sheet tray device.
摘要:
An image recording apparatus, including a sheet-supply tray device which accommodates and holds a plurality of recording sheets and which supplies the recording sheets, one by one, in a sheet-supply direction; and an image recording device which records an image on each of the recording sheets supplied from the sheet-supply tray device. The sheet-supply tray device includes a first tray which accommodates and holds at least one first sheet of the plurality of recording sheets; a second tray which accommodates at least one second sheet of the plurality of recording sheets, and which selectively takes a stacked posture thereof in which the second tray is stacked on the first tray, and an opening posture thereof in which at least a portion of the second tray opens at least a portion of the first tray; and at least one dropping preventing cover which prevents the at least one second sheet from dropping out of the second tray in a state in which the second tray takes the opening posture thereof.
摘要:
A sheet-supply apparatus, including a sheet accommodating portion which includes a support portion that supports, on a support surface thereof, a plurality of cut sheets such that the cut sheets are stacked on each other; a sheet-supply roller which is adapted to supply the cut sheets accommodated in the sheet accommodating portion, one by one in a sheet-supply direction; a main side guide which is slidably movable on the support portion in a widthwise direction of the sheet accommodating portion perpendicular to the sheet-supply direction and which guides a side edge of each of the cut sheets accommodated in the sheet accommodating portion, the side edge being parallel to the sheet-supply direction; and a sub-side guide which is located inside of the main side guide in the widthwise direction and which is pivotable about a pivot axis between a standing position and a lying position based on the widthwise sliding movement of the main side guide.
摘要:
A sheet feeder includes a first sheet-feeding cassette capable of accommodating a stack of recording medium and a second sheet-feeding cassette capable of accommodating a stack of recording medium smaller than the recording medium accommodated in the first sheet-feeding cassette. The second sheet-feeding cassette is disposed on the first sheet-feeding cassette so as to be movable with respect to the first sheet-feeding cassette. The second sheet-feeding cassette includes a first accommodating section and a second accommodating section. The second accommodating section is displaceable relative to the first accommodating section between a closed position and an open position. The second accommodating section exposes an accommodating section of the first sheet-feeding cassette wider in the open position than in the closed position.
摘要:
A sheet-supply device supplying sheets one at a time from a stack of sheets in a sheet feeding direction. The device includes a slanting plate on which a stack of sheets is mounted. A sheet feed roller is positioned above the slanting plate applying a force to an uppermost sheet in the stack to move the sheet in a sheet feed direction. A fixed separation plate is fixed at a downstream end portion of the slanting plate. The separation plate is formed with a slot in which a high friction separation member is disposed. The high friction separation member is held by a resilient support plate 39 supported by the fixed separation plate. The resilient support plate has a comb like slats on which the high friction separation member is held. In a normal condition, the high friction separation member protrudes from the slot toward the leading edges of the sheets. When a leading edge of the sheet presses the high friction separation member by the rotation of the sheet feed roller, and the sheet has a predetermined stiffness, a part of the high friction separation member sinks into the slot by the deformation of the comb like slats.
摘要:
There is provided a sheet feeding device, which is provided with a paper supply member which feeds a sheet of paper on the top of stack of paper, the paper supply member being actuated by an actuator. The sheet feeding device further provided with a control system which controls the paper supply member, the control system having a stable sheet feeding operation mode in which the control system drives the paper supply member for a first time period initially, then stops the paper supply member after the first time period terminates, and then drives the paper supply member for a second time period.