A tension-inducing shaft system includes a shaft, two shaft caps, and a biasing mechanism. A bore extends through the shaft between two ends of the shaft. The shaft caps are positioned on the two ends of the shaft. Each shaft cap includes a collar having a size that is larger than the bore, a keyed end, and an anchor. The biasing mechanism is arranged inside the bore and is coupled to the anchors of the shaft caps so that the biasing mechanism exerts inward forces on the shaft cap. The keyed ends of the shaft caps can be coupled to a housing so that the shaft caps do not rotate with respect to the housing. The shaft is configured to rotate with respect to the shaft caps such that, when the keyed ends are coupled to the housing, the shaft is capable of rotating with respect to the housing.

A recording apparatus includes a containing portion that contains a rolled sheet obtained by winding a sheet and a recording portion that records an image on the sheet fed from the rolled sheet contained in the containing portion and further includes an opening/closing member that can be movable between an open position at which the containing portion is opened and a closed position at which the containing portion is closed and a first guiding portion provided in the opening/closing member to guide the rolled sheet to the containing portion in a case where the opening/closing member is at the open position.

A printer for printing an image on a sheet stored in a rolled shape, includes a sheet holder by which the sheet in the rolled shape is rotatably held and including at least one side plate movable in a width direction of the sheet and contacting a side surface of the sheet, a printing head by which an image is printed on the sheet that has been conveyed from the sheet holder, a buffer unit between the sheet holder and the printing head and including a plate-shaped member that is connected to an elastic member that generates an elastic force by which the conveyed sheet is pressed, and an adjusting unit by which the movable side plate and the buffer unit is connected such that the elastic force varies depending on a location of the side plate.

A printer device includes: a recessed accommodation part accommodating a roll-shaped continuous paper; a pair of rack gears arranged in a staircase-like shape on a paper conveyance direction side of the continuous paper, and having tooth rows arranged in a first direction orthogonal to the paper conveyance direction so as to face each other; a pinion gear arranged between the pair of rack gears and fitting into the tooth rows of the pair of rack gears, and a pair of paper guides respectively provided at one end portion of an upper rack gear in the first direction and anther end portion of a lower rack gear in the first direction, and supporting side surfaces of the continuous paper accommodated in the accommodation part. The pair of paper guides perform an opening or closing movement in the first direction by the pair of rack gears and the pinion gear.

The splicing device for splicing a trailing edge of a first web material to a leading edge of a second web material includes members defining a feed path of the web material. The device also includes a first cutting member and a second cutting member, cooperating with the first cutting member. One of the two cutting members is provided with a movement transverse to the feed path of the web material, to move the cutting member from an operating position, in which it is in front of the other cutting member, to an idle position, withdrawn with respect to the feed path of the web material.

A roll support structure is used in a printer which pulls out a sheet material from a roll on which the strip-shaped sheet material is wound and performs printing on the sheet material, where a holding portion which is inserted inside a tubular core of the roll to hold the roll rotatably includes a first portion which is in contact with an upper portion of an inner surface of the core and supports the roll from below and a second portion which is located further on a downstream side in a conveyance direction of the sheet material than a contact point between the first portion and the core and prevents movement of the oscillating roll supported by the first portion to the upstream side in a conveyance direction within a predetermined range.

A printer device includes: a pair of rack gears arranged in a staircase-like shape on a paper conveyance direction side of a continuous paper accommodated in a recessed accommodation part that accommodates a roll-shaped continuous paper and having tooth rows arranged in a first direction orthogonal to the paper conveyance direction so as to face each other; a pinion gear fitted into the tooth rows; and a pair of paper guides that are respectively provided at a position of an upper rack gear that is closer to a center side in the first direction from one end portion in the first direction and a position of a lower rack gear that is closer to the center side in the first direction from another end portion in the first direction or the other end portion. The paper guide provided on the upper rack gear is mounted to an upper mounting part extending from a back surface of the upper rack gear opposite to the tooth row to the paper conveyance direction side.

A feed assembly for dispensing rolled web material from a bulk roll of material and that includes a feed drum and a pair of pinch rollers that cooperate with the feed drum. The feed drum and pinch rollers are oriented and constructed to mitigate jamming and/or undesired displacement of the web material as it progresses through the feed assembly. Preferably, a drum guard is disposed between the pinch rollers and is constructed to further mitigate undesired translation of the web material relative to the feed assembly during dispense operations.

A manually-operated dunnage conversion apparatus includes a housing, a support mounted in the housing and configured to support a supply of sheet material for dispensing from the dunnage conversion apparatus, and one or both of (a) a guide member mounted in the housing downstream of the support and providing a resilient surface across which the sheet material may be drawn to restrict tearing of the sheet material as it is drawn from the dunnage conversion apparatus, and (b) a tensioning assembly mounted in the housing and configured to apply a compressive force between opposite axial sides of the housing to control the force necessary to dispense the supply of sheet material. Except for the tensioning assembly, the apparatus may be made of paper-based products, making the apparatus recyclable, reusable, and composed of a renewable resource, as well as inexpensive to manufacture.

An unwinder (1) of rolls (B1, B2) including a bearing structure (3) and two pairs of arms (11A, 11B; 13A, 13B) supported movable on the bearing structure (3). The unwinder further includes a splicing machine (31). The bearing structure (3) includes a base (5) and an upright (7) extending from the base, on which a cross member (33) is supported. The cross member (33) includes an intermediate portion (33A) rigidly bound to the upright (7) and a pair of lateral supports (33B, 33C) adapted to assume at least one operating position and one non-operating position, with respect to the inter-mediate portion (33A) of the cross member (33).