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US 6,089,497 AGranted
Recording device using continuous paper and method of feeding continuous paper
AssigneeNEC Corporation
InventorHiromasa Miyake
Life of this patent
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AssigneeNEC Corporation
InventorHiromasa Miyake
Estimating the term…
A recording device operable with continuous paper in the form of a roll includes a pair of drive rollers for selectively rotating the roll in the forward direction for paying out the paper or in the reverse direction. A controller causes the drive rollers to rotate in the reverse direction in response to a preselected signal. Bar codes representative of serial numbers are printed on one side edge of the paper. While the roll is rotated in the reverse direction, a number identification circuit reads the bar codes 41 and detects the leading edge of the paper on the basis of one bar code positioned at the leading edge and another bar code adjoining a roll position which the leading edge overlies. When the number identification circuit detects the leading edge, the controller switches the direction of rotation of the roll from reverse to forward. Subsequently, a separator is brought into contact with the periphery of the roll in order to separate the paper from the roll and pays out the paper in accordance with the forward rotation.
Apparatus for determining the location of a leading edge of a an elongated, flat strip of paper rolled up into a helix to form a generally cylindrical body, said strip of paper having a principal surface having serial marks recorded thereon in a designated sequential order between a leading edge of said paper and a trailing edge thereof, said generally cylindrical body having an outer surface defined by a portion of said principal surface containing at least two of said serial marks which are not in said designated sequential order and facing radially outwardly with respect to a central axis of said generally cylindrical body, said leading edge of said paper being located on said outer surface of said generally cylindrical body and abutting a portion of said principal surface which is remote from said leading edge as measured along said principal surface in a downstream direction extending from said leading edge toward said trailing edge, said apparatus comprising:
A method for determining the location of a leading edge of a an elongated, flat strip of paper rolled up into a helix to form a generally cylindrical shape, said strip of paper having a principal surface having serial marks recorded thereon in a designated sequential order between a leading edge of said paper and a trailing edge thereof, said generally cylindrical shape having an outer surface defined by a portion of said principal surface containing at least two of said serial marks which are not in said designated sequential order and facing radially outwardly with respect to a central axis of said generally cylindrical body, said leading edge of said paper being located on said outer surface of said generally cylindrical body and abutting a portion of said principal surface which is remote from said leading edge as measured along said principal surface in a downstream direction extending from said leading edge toward said trailing edge, said method comprising the steps of:
Dependencies are inferred from the claim text.