Thermal marking system for photographic media
First Claim
1. In a photographic printer of the type wherein a web of photographic material is advanced to and from an exposure station by drive means and having means for selectively marking individual exposure areas of said photographic material, the improvement wherein said marking means comprises:
- thermally activated marking tape means;
thermal print element means for selectively applying thermal energy to portions of said tape means; and
means establishing engagement between said photographic material and said tape means for driving said tape means past said thermal print element means on movement of said photographic material.
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Accused Products
Abstract
A photographic printer of the type wherein a web of photographic material is advanced to and from an exposure station and wherein individual exposure areas of the photographic material are selectively marked by a thermal marking system. The thermal marking system of the present invention includes a thermally activated marking tape and a thermal print head which selectively applies thermal energy to portions of the tape. A frictional engagement between the photographic material and tape results in a movement of the tape with the photographic media when the media is driven through the printer. In a preferred embodiment, the friction between the tape and media is selectively established by intermittently establishing an intimate contact between them.
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Citations
13 Claims
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1. In a photographic printer of the type wherein a web of photographic material is advanced to and from an exposure station by drive means and having means for selectively marking individual exposure areas of said photographic material, the improvement wherein said marking means comprises:
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thermally activated marking tape means; thermal print element means for selectively applying thermal energy to portions of said tape means; and means establishing engagement between said photographic material and said tape means for driving said tape means past said thermal print element means on movement of said photographic material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. In a photographic printer of the type wherein a web of photographic material is advanced to and from an exposure station by drive means and having means for selectively marking individual exposure areas of said photographic material, the improvement wherein said marking means comprises:
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thermally activated marking tape means; thermal print element means for selectively applying thermal energy to portions of said tape means; and means selectively establishing intimate contact between said photographic material and said tape means, at least in the region of said thermal print element means, for driving said tape means past said thermal print element means by advancing said photographic material.
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Specification