A sheet conveyor including a separation roller, a separation pad, an urging member urging the separation pad, and a feed roller unit disposed downstream relative to the separation roller in a conveyance direction, the feed roller unit including a first outer circumferential surface disposed on a first side in a width direction perpendicular to the conveyance direction, a second outer circumferential surface disposed on a second side opposite to the first side in the width direction, and a concave portion disposed between the first and second outer circumferential surfaces in the width direction, the concave portion being recessed inward in a radial direction of the first and second outer circumferential surfaces from the first and second outer circumferential surfaces, an urging member being disposed upstream relative to the concave portion in the conveyance direction and disposed between the first and second outer circumferential surfaces in the width direction.

The sheet conveyance apparatus includes first and second rollers, the second roller coming into contact with the first roller and thereby forming a nip portion, the second rotation axis being inclined with respect to the first rotation axis, wherein the second roller includes a first outer circumferential portion having a first outside diameter, a second outer circumferential portion arranged on one side of the first outer circumferential portion in an axial direction of the second rotation axis and having a second outside diameter larger than the first outside diameter, and a third outer circumferential portion arranged on the other side of the first outer circumferential portion, and wherein an outer circumferential surface of the first roller contacts with at least the first, second and third outer circumferential portions of the second roller, to form the nip portion.

Apparatus for vertically supporting and maintaining a web of plastic film horizontally aligned in applications such as machines that form the plastic film into bags and fill them. Separate coplanar consecutively spaced plates are aligned with and extend through a web normal traversing plane. One of the plates has a peak edge extending out of the web normal traversing plane in a first direction, whereas another has a peak edge extending out of the web normal traversing plane in a second opposite direction. The peak edges define an undulating plastic film travel path between a web upstream location and a web downstream location. The web of film is tensioned between the upstream location and the downstream location and travels along the continuous undulating path. The film flexibly bends over the peak edges as a result of the tension and is thereby supported and maintained aligned.

The present invention provides a medium protection device and a medium separating and stacking device capable of avoiding damage to a medium when moving the medium along a guide. In a banknote cassette, a guide body is attached to a circumferential side face of a central body of a tongue piece roller in a range not provided with tongue pieces. When feeding out banknotes, the banknote cassette stops the tongue piece roller in a retracted state, thereby positioning an outer circumferential face of the guide body in the vicinity of the surface of a front upper curved portion of a hole in the conveyance guide, such that the hole can be placed in an almost completely blocked state. The present invention can accordingly prevent the vicinity of a corner of a banknote from entering the hole, enabling creasing during conveyance to be forestalled.

A print media moving apparatus includes a web guide positioned immediately upstream relative to a roller. The web guide has an arcuate surface including three sections with the second section located between the first and third sections. The arcuate surface includes a peak in the second section. The roller, having a diameter and rotational axis, includes three sections with the second section located between the first and third section as viewed along the rotational axis. The diameter of the roller in the first and third sections is greater than in the second section. The three sections of the web guide correspond to the three sections of the roller such that the contour of the arcuate surface causes the print media, after leaving the web guide, to contact the first and third sections of the roller prior to contacting the second section of the roller.

A liquid ejecting apparatus including a liquid ejecting unit that ejects a liquid onto a medium, a transporting mechanism that transports the medium, a member having concave portions, which is arranged downstream of the liquid ejecting unit in a transporting direction of the medium, an introducing mechanism that introduces the medium to the concave portions, the transporting mechanism having rollers that come into contact with the medium at a plurality of contact positions in a direction that intersects the transporting direction, and the concave portions being arranged at positions that correspond to a position between neighboring ones of the contact positions in the transporting direction. By giving the liquid ejecting apparatus such a structure, wrinkles that occur in a liquid ejection region can be suppressed.

A medium conveying apparatus includes a drive roller, a driven roller, and a supporting portion. The drive roller includes a drive body portion and a drive contact portion. The drive contact portion is formed of a material having a smaller friction coefficient or a higher surface hardness than the drive body portion, and is formed with a groove portion along a circumferential direction. The driven roller includes a driven contact portion which comes into contact with the drive contact portion at a non-conveying position, and a plurality of protrusion portions which protrude outwardly in a radial direction. The plurality of protrusion portions are arranged in the groove portion at the non-conveying position. The drive contact portion is formed with a pair of guide portions which guide, to the groove portion, the protrusion portions of the driven roller moving from a conveying position to the non-conveying position.