Medicine packaging apparatuses and methods for accurately determining a remaining sheet amount of a medicine packaging sheet are described. The apparatus includes: a roll support section to which a core tube of a medicine packaging sheet roll is attached; a sensor disposed in the roll support section for outputting a count value according to a rotation amount; a wireless reader-writer unit for writing information to a core tube IC tag and reading said information; an information generation section for generating information to be written to the core tube IC tag; a remaining sheet amount estimation section for estimating a current amount of remaining sheet based on the information and dimensional information of the core tube; and a controller which selectively performs an operation if a reference time-point count value is not yet written to the core tube IC tag and another operation if the count value is already written thereto.

A plurality of marks (11) equidistantly provided on both side edge parts (1a) of a long medium (1), a plurality of first indicator holes (12) equidistantly given on at least one of the side edge parts (1a), and a plurality of second indicator holes (13) given on at least one of the side edge parts (1a) on a straight line different from a row of the first indicator holes (12) at spacings shorter than spacings of the first indicator holes (12) are provided, and the second indicator holes (13) are each provided to a side of a trailing-end mark (11b), and each gradually comes closer to a leading-end mark (11a) as the long medium (1) runs toward a trailing end.

A plurality of marks (11) equidistantly provided on both side edge parts (1a) of a long medium (1), a plurality of first indicator holes (12) equidistantly given on at least one of the side edge parts (1a), and a plurality of second indicator holes (13) given on at least one of the side edge parts (1a) on a straight line different from a row of the first indicator holes (12) at spacings shorter than spacings of the first indicator holes (12) are provided, and the second indicator holes (13) are each provided to a side of a trailing-end mark (11b), and each gradually comes closer to a leading-end mark (11a) as the long medium (1) runs toward a trailing end.

A printer includes: a holding member configured to hold a roll of paper; an elastic member configured to support the holding member so that the holding member is slidable in a vertical direction; a first detection unit configured to detect a position of the holding member; and a second detection unit that detects a near-end of the roll of paper based on a detection result by the first detection unit.

A printer includes: a holding member configured to hold a roll of paper; an elastic member configured to support the holding member so that the holding member is slidable in a vertical direction; a first detection unit configured to detect a position of the holding member; and a second detection unit that detects a near-end of the roll of paper based on a detection result by the first detection unit.

Medicine packaging apparatuses and methods for accurately determining a remaining sheet amount of a medicine packaging sheet are described. The apparatus includes: a roll support section to which a core tube of a medicine packaging sheet roll is attached; a sensor disposed in the roll support section for outputting a count value according to a rotation amount; a wireless reader-writer unit for writing information to a core tube IC tag and reading said information; an information generation section for generating information to be written to the core tube IC tag; a remaining sheet amount estimation section for estimating a current amount of remaining sheet based on the information and dimensional information of the core tube; and a controller which selectively performs an operation if a reference time-point count value is not yet written to the core tube IC tag and another operation if the count value is already written thereto.

Medicine packaging apparatuses and methods for accurately determining a remaining sheet amount of a medicine packaging sheet are described. The apparatus includes: a roll support section to which a core tube of a medicine packaging sheet roll is attached; a sensor disposed in the roll support section for outputting a count value according to a rotation amount; a wireless reader-writer unit for writing information to a core tube IC tag and reading said information; an information generation section for generating information to be written to the core tube IC tag; a remaining sheet amount estimation section for estimating a current amount of remaining sheet based on the information and dimensional information of the core tube; and a controller which selectively performs an operation if a reference time-point count value is not yet written to the core tube IC tag and another operation if the count value is already written thereto.

A rebel printer includes an estimation unit that estimates a remaining amount of a roll sheet based on R=PF/(?.Math.REV) (Equation (1)). A first measurement unit resets the measured cumulative rotation amount each time the remaining amount of the roll sheet is estimated or each time the remaining amount of the roll sheet is estimated multiple times, A second measurement unit resets the measured cumulative conveyance amount each time the remaining amount of the roll sheet is estimated or each time the remaining amount of the roll sheet is estimated multiple times, and the estimation unit performs a filter process on A diameter of the roll sheet calculated using the Equation (1), and estimates the diameter subjected to the filter process as the remaining amount of the roll sheet.

A rebel printer includes an estimation unit that estimates a remaining amount of a roll sheet based on R=PF/(?.Math.REV) (Equation (1)). A first measurement unit resets the measured cumulative rotation amount each time the remaining amount of the roll sheet is estimated or each time the remaining amount of the roll sheet is estimated multiple times, A second measurement unit resets the measured cumulative conveyance amount each time the remaining amount of the roll sheet is estimated or each time the remaining amount of the roll sheet is estimated multiple times, and the estimation unit performs a filter process on A diameter of the roll sheet calculated using the Equation (1), and estimates the diameter subjected to the filter process as the remaining amount of the roll sheet.

A plurality of marks (11) equidistantly provided on both side edge parts (1a) of a long medium (1), a plurality of first indicator holes (12) equidistantly given on at least one of the side edge parts (1a), and a plurality of second indicator holes (13) given on at least one of the side edge parts (1a) on a straight line different from a row of the first indicator holes (12) at spacings shorter than spacings of the first indicator holes (12) are provided, and the second indicator holes (13) are each provided to a side of a trailing-end mark (11b), and each gradually comes closer to a leading-end mark (11a) as the long medium (1) runs toward a trailing end.