A paper conveying device includes a support shaft configured to pivotally support a roll of paper having a center measured in a width direction, a guide movable in the width direction of the roll based on a size of the roll and configured to position the center of the roll in a reference position, and a sensor coupled to the guide and configured to detect that the roll contains less than a threshold amount of paper based on a diameter of the roll.

An auto splicing apparatus of roll to roll feeding equipment includes first and second supply rolls in which component fabric of a single layer is wound in roll form and the component fabric is unwound from the first supply roll or the second supply roll along a predetermined transfer path including a pair of feeding rollers that are disposed at upper and lower sides, respectively, of the transfer path; a first cutter assembly that is installed to perform a first vertical rotation based on the transfer path between the first supply roll and the feeding roller and including a first fabric cutter and a first fabric absorption portion; and a second cutter assembly that is installed to perform a second vertical rotation based on the transfer path between the second supply roll and the feeding roller and including a second fabric cutter and a second fabric absorption portion.

According to an embodiment, a printer includes a drop portion that catches, in a case where a diameter of a roll of paper stored in a holder becomes small, the roll of paper that falls from the holder. The printer further includes a plurality of support rollers that are arranged so as to sandwich an inlet of the drop portion and rotatably support the roll of paper PR stored in the holder. At least one of the plurality of support rollers is a short-width roller whose width in an axial direction of a shaft is shorter than a paper width of the roll of paper PR, and a void is provided at a non-shaft arrangement part provided at an extension portion of the short-width roller in the axial direction.

According to an embodiment, a printer includes a drop portion that catches, in a case where a diameter of a roll of paper stored in a holder becomes small, the roll of paper that falls from the holder. The printer further includes a plurality of support rollers that are arranged so as to sandwich an inlet of the drop portion and rotatably support the roll of paper PR stored in the holder. At least one of the plurality of support rollers is a short-width roller whose width in an axial direction of a shaft is shorter than a paper width of the roll of paper PR, and a void is provided at a non-shaft arrangement part provided at an extension portion of the short-width roller in the axial direction.

There is provided a component mounter including: a storage which stores information related to a tape feeder and information related to a carrier tape pitch-fed by the tape feeder; a detector which detects a state where the carrier tape becomes close to a component shortage; a determiner which determines whether to perform predetermined processing with respect to a termination portion of the carrier tape based on information related to the tape feeder and information related to the carrier tape which are stored in the storage, in a case where a state where the carrier tape is close to a component shortage is detected by the detector; and a notifier which notifies an operator of contents of the predetermined processing, in a case where the determiner determines that the predetermined processing is supposed to be performed with respect to the termination portion of the carrier tape.

The present invention provides for an improved printer provides a user with a simple, intuitive user-friendly touchscreen interface, is easy to assemble, and has a low cost to repair. The printer comprises a platen roller that can be changed without tools via the use of a bayonet connector, and an easy change print head that mechanically guides the print head into the carrier via mechanical guiding pins. Further, the printer comprises a universal supply holder to accommodate different sizes of inner diameter cores for tag and laminated supplies. The printer also discloses a ribbon spindle that accommodates both a cardboard core and a plastic core on the same printer device. Additionally, the printer discloses a media low sensor for providing a low supply indicator, and a gap sensor that comprises an LED array and a resistor array for gap sensing across the supply web.

The present invention provides for an improved printer provides a user with a simple, intuitive user-friendly touchscreen interface, is easy to assemble, and has a low cost to repair. The printer comprises a platen roller that can be changed without tools via the use of a bayonet connector, and an easy change print head that mechanically guides the print head into the carrier via mechanical guiding pins. Further, the printer comprises a universal supply holder to accommodate different sizes of inner diameter cores for tag and laminated supplies. The printer also discloses a ribbon spindle that accommodates both a cardboard core and a plastic core on the same printer device. Additionally, the printer discloses a media low sensor for providing a low supply indicator, and a gap sensor that comprises an LED array and a resistor array for gap sensing across the supply web.

A printer includes a housing storing a rolled sheet and having an opening, a head, a cover covering the opening, a first flapper attached to the cover via a first shaft at a first end of the flapper, pivoting around the shaft, and biased to press the sheet with a second end thereof, the first end being closer to a front side of the cover than the second end, a second flapper attached to the cover via a second shaft at a first end of the second flapper and pivoting around the second shaft, a second end of the second flapper being closer to the front side than the first end and slidably connected to a center portion of the first flapper, and a sensor detecting that a remaining amount of the sheet has decreased to a predetermined amount, based on an angle by which the second flapper has pivoted.

Printers and methods are provided for determining an amount of remaining print media in an operating printer. Waveform signal is received from encoder wheel having number (n) of sectors and proximate optical sensor. Waveform signal represents number of sectors (m) that, during measurement time (t), pass by optical sensor as encoder wheel rotates. If media encoder wheel, in response to receiving waveform signal, processor calculates length of remaining print media in media roll at instant time t2. If ribbon encoder wheel, in response to receiving waveform signal, processor at least one of calculates length of remaining ribbon in ribbon roll at instant time t2 or extrapolates the length of the remaining print media from a plurality of data points defining an interpolation equation.

A printer configured to perform printing on recording paper includes a body and a lid. The body includes a holder configured to accommodate the recording paper. The lid is attached to the body to be opened and closed relative to the body. An opening is formed at the bottom of the holder to allow attachment of a function module to the bottom of the holder.