A pick-up device disposed between an input tray and a feeding path includes a paper feeding unit for feeding paper, a separation roller disposed opposite to the paper feeding unit, a blocking arm disposed between the input tray and the paper feeding unit and configured to be switchably disposed between a blocking position for blocking the paper and a feeding position for passing the paper through the feeding path, and a guiding arm disposed in the feeding path through a pivot shaft and having a guiding portion. The pivot shaft is located upstream of the separation roller, and the guiding portion is swingably disposed in a seam space formed by the paper feeding unit and the separation roller.

A document feed device includes a tray in which a document is loaded, a pickup roller to be moved upward or downward to a standby position spaced apart from the document or to a pickup position to pick up the document in the tray, a separator to separate each sheet of the picked-up document, an inclined guide to connect an end of an exit of the tray to an entrance of the separator and to guide a bottom surface of the picked-up document, and a document guide member movable to a first position protruding from the inclined guide to guide the picked-up document or to a second position below the inclined guide.

A document feed device includes a tray in which a document is loaded, a pickup roller to be moved upward or downward to a standby position spaced apart from the document or to a pickup position to pick up the document in the tray, a separator to separate each sheet of the picked-up document, an inclined guide to connect an end of an exit of the tray to an entrance of the separator and to guide a bottom surface of the picked-up document, and a document guide member movable to a first position protruding from the inclined guide to guide the picked-up document or to a second position below the inclined guide.

A sheet feeding apparatus includes a supporting portion configured to support sheets, a feeding member configured to feed the sheets, an air blower unit configured to blow air to separate the sheets, and a side end regulating member including a regulating surface, an air outlet port through which the air from the air blower unit is blown out, a first restriction member movable to a protruding position and to a retracting position, and a second restriction member disposed downstream of the first restriction member in the feeding direction, the second restriction member being fixed to a position where the second restriction member protrudes inward in the sheet width direction with respect to the regulating surface so as to restrict the excessive floating of the sheets.

A sheet feeding apparatus includes a supporting portion configured to support sheets, a feeding member configured to feed the sheets, an air blower unit configured to blow air to separate the sheets, and a side end regulating member including a regulating surface, an air outlet port through which the air from the air blower unit is blown out, a first restriction member movable to a protruding position and to a retracting position, and a second restriction member disposed downstream of the first restriction member in the feeding direction, the second restriction member being fixed to a position where the second restriction member protrudes inward in the sheet width direction with respect to the regulating surface so as to restrict the excessive floating of the sheets.

A feed device includes: a feed tray configured to accommodate a roll, in which a medium is rolled in a roll shape, rotatably; a housing configured to support the feed tray installable; and a pull-back mechanism configured to pull back the medium unrolled from the roll in a direction orthogonal to a rotation axis of the roll in conjunction with an outward movement of the feed tray from the housing in the direction orthogonal to the rotation axis of the roll.

A feed device includes: a feed tray configured to accommodate a roll, in which a medium is rolled in a roll shape, rotatably; a housing configured to support the feed tray installable; and a pull-back mechanism configured to pull back the medium unrolled from the roll in a direction orthogonal to a rotation axis of the roll in conjunction with an outward movement of the feed tray from the housing in the direction orthogonal to the rotation axis of the roll.

According to an embodiment, a sheet feeding mechanism includes a first elastic body. The first elastic body blocks a first reference line and a second reference line. The first elastic body has a first angle formed between the first elastic body and the first reference line, the first angle being an acute angle. The first reference line is a reference line along a take-out direction by the first roller. The second reference line is a reference line connecting a nip between the second roller and the third roller and a contact position of the first roller and a sheet.

According to an embodiment, a sheet feeding mechanism includes a first elastic body. The first elastic body blocks a first reference line and a second reference line. The first elastic body has a first angle formed between the first elastic body and the first reference line, the first angle being an acute angle. The first reference line is a reference line along a take-out direction by the first roller. The second reference line is a reference line connecting a nip between the second roller and the third roller and a contact position of the first roller and a sheet.

A sheet separation device includes a rotator, a nipping member to nip the two-ply sheet with the rotator, a first conveyor to convey the two-ply sheet in a first direction toward the rotator and a second direction reverse thereto, a winding member to wind the two-ply sheet around the rotator, a second conveyor to convey a sheet medium in the second direction, a separation claw to move in a width direction; a sheet guide to guide the separated two sheets to different passages; and control circuitry. The first conveyor conveys the two-ply sheet to the rotator with a bonded portion at an upstream end. The control circuitry inserts the separation claw into a space between the two sheets, adjusts a projection amount of the two-ply sheet from a nip of the first conveyor in the second direction, and inserts the sheet medium in two-ply sheet adjusted in the projection amount.