In one aspect, the present disclosure is directed to a sheet material dispenser. The dispenser can include support for supporting a supply of the sheet material, and a feed roller arranged along a feed path of the sheet material downstream from the supply of sheet material that is operable to pull the sheet material from the supply of sheet material for feeding thereof. Additionally, the dispenser can include a controller that is in communication with the feed roller and includes programming for monitoring rotation of the feed roller during a dispensing cycle for feeding a selected length of the sheet material from the supply of sheet material. A material supply monitoring system further can be in communication with the controller, and operative to detect a number of rotations or an angle of rotation of the supply sheet material during at least a series of dispensing cycles.

A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.

A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.

The present disclosure refers to a method and a system for tracking cable drums and length of cable on the drum. A method includes attaching a tracker device with a tracker identifier to a cable drum with a drum identifier, said drum identifier being associated in a database with drum dimensions and with cable dimensions of a cable stored on the drum. The method includes associating in the database the drum identifier also with the tracker identifier. The method includes when an event comprising at least a shock and/or a number of rotations of the cable drum around a longitudinal axis occurs, activating a first electronic circuit of the tracker device including a sensing device that detects at least the event, storing the detected event in a local memory of the tracker device and switching the first electronic circuit to standby mode after the detected event is stored.

A method of dispensing sheet material from two rolls includes dispensing a first sheet of material from a first roll of the material located at a first location, lowering the first roll from the first location as the first sheet of material is being dispensed, lowering a second roll of material onto a second location above the first location when the first roll has been lowered to a location below the first location, and dispensing a second sheet of material from the second roll. A dispenser allowing for dispensing from two rolls includes a first wall having a forward end, a second wall opposite and spaced apart from the first wall and a cam coupled to each wall.

A printer includes a holder configured to house rolled recording paper, a cover that is attached to the holder to be openable and closable relative to the holder, and a contact part that is attached to the cover and configured to contact the recording paper. The contact part is configured such that the contact part substantially point-contacts the recording paper, and positions on the contact part contacting the recording paper change as the recording paper is unrolled.

A printer includes a holder configured to house rolled recording paper, a cover that is attached to the holder to be openable and closable relative to the holder, and a contact part that is attached to the cover and configured to contact the recording paper. The contact part is configured such that the contact part substantially point-contacts the recording paper, and positions on the contact part contacting the recording paper change as the recording paper is unrolled.

In one aspect, the present disclosure is directed to a dispenser assembly for dispensing supplies of sheet material. The dispensing assembly can include a carrier supporting the supplies of sheet material and being moveable along a track between various dispensing positions. The dispenser assembly also can include a carrier pivoting assembly with a lever that engages one of the supplies of sheet material and rotates during dispensing thereof, as well as one or more biased pins connected to the lever and configured to engage locking features provided along the track to support the carrier in one of the dispensing positions. The biased pins further can be configured to retract with rotation of the lever such that they disengage the locking features so the carrier to moves along the track to different dispensing position. Other aspects also are described.

A system for deploying a coil of spoolable pipe from a vessel includes a first tower configured to move longitudinally and transversely along a first track coupled to the vessel, a second tower configured to move longitudinally along a second track coupled to the vessel, and a coil drum assembly coupled to the first tower. The first tower is configured to insert the coil drum assembly transversely into an interior channel of the coil when the coil drum assembly is in a retracted position, the coil drum assembly is configured to support the coil when the coil drum assembly is in an extended position and rotate during deployment of the spoolable pipe, and the first tower and the second tower are configured to move the coil drum assembly vertically.

A system for deploying a coil of spoolable pipe from a vessel includes a first tower configured to move longitudinally and transversely along a first track coupled to the vessel, a second tower configured to move longitudinally along a second track coupled to the vessel, and a coil drum assembly coupled to the first tower. The first tower is configured to insert the coil drum assembly transversely into an interior channel of the coil when the coil drum assembly is in a retracted position, the coil drum assembly is configured to support the coil when the coil drum assembly is in an extended position and rotate during deployment of the spoolable pipe, and the first tower and the second tower are configured to move the coil drum assembly vertically.