Abstract:
The medium detection unit is a component constituting an optical path of the detection light, and includes a first optical element disposed on an upper side of the medium transport path and a second optical element disposed on a lower side of the medium transport path so as to face the first optical element, the second optical element has a facing surface that faces the first optical element, the facing surface being located at a position that is not in contact with a medium nipped by both the first roller pair and the second roller pair, and a medium feeding direction by the first roller pair is a direction by which a leading edge of a medium fed out abuts a position upstream in the medium transport direction relative to a position where the detection light is received on the facing surface.
Abstract:
A control unit performs a reading operation in a first mode in which a document on a document stand is read by moving a carriage which includes a reading portion, and in a second mode in which a document which is transported by a document transport unit is read using the carriage which is located at a reading position. The device includes a first white reference plate which is arranged in a first white reference reading position which is a standby position in the first mode, and a second white reference plate which is arranged on a side opposite to the first white reference plate by interposing a reading position in the second mode therebetween in the sub-scanning direction.
Abstract:
A medium discharge device includes: a discharge unit that discharges a medium; a first medium receiving tray that receives the medium discharged by the discharge unit; and a second medium receiving tray that is provided above the first medium receiving tray in a vertical direction and receives the medium discharged by the discharge unit. The second medium receiving tray is capable of changing a position between an advance position for receiving a medium, which is discharged, by causing at least an upstream zone of the tray including an upstream side end portion in a medium discharge direction to advance to a passing route of the medium from the discharge unit toward the first medium receiving tray and a retraction position to which the upstream zone retracts from the passing route.
Abstract:
An upstream-side unit of a reading unit of an automatic document feeder has protruding portions that protrude toward a surface that forms a document feeding path in a mechanism body unit on both sides of a document in the width direction outside a feeding portion that forms the document feeding path. Positioning of the upstream-side unit provided so as to be rotatable with respect to the mechanism body unit is performed by making protruding portions come in contact with a guide surface of the mechanism body unit, the guide surface forming the document feeding path. By adopting this configuration, because the protruding portions provided on both sides of the document in the width direction outside the document feeding path are used to perform positioning, it is possible to increase the accuracy of clearance for allowing a document to pass through the document feeding path.
Abstract:
A transport apparatus includes: a separation roller pair which is operated when power is transmitted from a first motor; a resist roller pair which is operated when power is transmitted from a second motor; an assist roller pair which is disposed between the separation roller pair and the resist roller pair in the transport direction of the document; a first transmission mechanism portion which transmits the power from the first motor to the assist roller pair; a second transmission mechanism portion which transmits the power from the second motor to the assist roller pair; and a control portion which controls operation aspects of each roller pair.
Abstract:
A transported material transporting device including: a power transmission switching mechanism configured to switch the transmission of the power between the nip-release switching mechanism and the drive motor between a transmitted state and a blocked state; a detection unit provided in the reversing path and configured to detect the presence or absence of the material to be transported which enters the reversing path; and a blocked-state locking mechanism configured to lock the blocked state of the power transmission switching mechanism when the discharging roller is in the released state, wherein the locked state of the blocked-state locking mechanism is released and the power transmission switching mechanism is switched from the blocked state to the transmitted state upon detection of the position of the trailing end of the material to be transported entering the reversing path by the detection unit.
Abstract:
A medium transporting device including: a main body; an opening/closing body; and a holding unit, in which the holding unit includes a rotation member that has a supporting portion which can be displaced between raised up and dropped down by rotation thereof and supports the opening/closing body and applies a force to the opening/closing body in an opening direction by the supporting portion engaging with the opening/closing body, and a pressing unit that presses the rotation member in the raised direction, and in which the holding unit further includes a configuration in which a force which is applied to the opening/closing body in the opening direction due to a pressing force to the rotation member generated by the pressing unit and a force that the opening/closing body tries to close are balanced with each other according to a predetermined rotation angle of the rotation member.
Abstract:
An image reading apparatus includes a document placement surface, a document cover that rotates between a closed state and an open state, a pressing portion that is disposed on the side of the document table and presses a switch, a rotary lever that is disposed on the side of the document cover and applies external force to the pressing portion, and a biasing member that biases one end side of the rotary lever in a direction that moves away from the document cover, in which when the document cover is at a predetermined angle, one end of the rotary lever pushes down the pressing portion to change the state of the switch, and in the process of displacement from the predetermined angle to the closed state, the one end of the rotary lever rotates in a direction approaching the document cover and maintains the state of the switch.
Abstract:
A document reader includes: a scanner unit; an ADF; a hinge that connects the scanner unit and the ADF in a way that the ADF is openable from and closable to the scanner unit by turning around a turn shaft of the hinge; and a positioning mechanism. The hinge includes a pressing member that holds the ADF open, and is arranged on a back side of the scanner unit with the turn shaft located above the pressing member. The positioning mechanism includes: a projecting portion located below the turn shaft, and formed on a surface of the hinge intersecting an axial direction of the turn shaft; a slit formed in the scanner unit, and brought into engagement with the projecting portion; and an adjusting screw that presses a lower part of the hinge from the back side of the scanner unit.
Abstract:
A drive transferring unit includes a first roller, a second roller, a first clutch, a second clutch, a transferring section, and a control section. The first roller includes a first shaft section. The second roller includes a second shaft section. The first clutch switches between enabling transfer of a driving force to the first shaft section and interrupting transfer thereof. The second clutch switches between enabling transfer of the driving force to the second shaft section and interrupting transfer thereof. The transferring section transfers the driving force from one of the first roller and the second roller to the other. The control section selects between first control in which the first clutch is in the on state and the second clutch is in the off state and second control in which the second clutch is in the on state and the first clutch is in the off state.