Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
A thermal transfer printer comprising: a frame; a platen fixedly connected to the frame; a carriage mounted on the frame such that the carriage is movable relative to the platen, the carriage including: a take-up motor; a first take-up bobbin connected to the take-up motor such that rotation of the take-up motor causes rotation of the first take-up bobbin; a second take-up bobbin connected by a gear to the first take-up bobbin such that rotation of the first take-up bobbin causes rotation of the second take-up bobbin; a first feed bobbin; a second feed bobbin; and control means for controlling a rotating speed of the second feed bobbin; and means for moving the carriage relative to the platen; wherein the rotating speed of the second feed bobbin is controlled by the control means to correspond with a moving amount of the carriage relative to the platen.
Claim 2
Dependent Claim
146 words
A thermal transfer printer comprising: a frame; a platen fixedly connected to the frame; a carriage mounted on the frame such that the carriage is movable relative to the platen, the carriage including: a take-up motor; a first take-up bobbin connected to the take-up motor such that rotation of the take-up motor causes rotation of the first take-up bobbin; a second take-up bobbin connected by a gear to the first take-up bobbin such that rotation of the first take-up bobbin causes rotation of the second take-up bobbin; a first feed bobbin; a second feed bobbin; and control means for controlling a rotating speed of the second feed bobbin; and means for moving the carriage relative to the platen; wherein the rotating speed of the second feed bobbin is controlled by the control means to correspond with a moving amount of the carriage relative to the platen.
Claim 3
Dependent Claim
71 words
A thermal transfer printer according to claim 1, wherein the carriage moving means includes a drive belt having a plurality of teeth; and wherein the control means comprises: a feed gear coaxially formed with said second feed bobbin; and a drive gear rotatably mounted on said carriage and engaged with the feed gear and the teeth of said drive belt, said drive gear being rotated by movement of the drive belt.
Claim 4
Dependent Claim
311 words
A thermal transfer printer comprising: a frame; a platen fixedly connected to the frame; a carriage mounted on the frame such that the carriage is movable relative to the platen, the carriage including: a thermal head; a take-up motor; a first take-up bobbin connected to the take-up motor such that rotation of the take-up motor causes rotation of the first take-up bobbin; a second take-up bobbin connected to the first take-up bobbin such that rotation of the first take-up bobbin causes rotation of the second take-up bobbin; a first feed bobbin; a second feed bobbin; and control means for controlling a rotating speed of the first feed bobbin; means for moving the carriage at a first speed relative to the platen; and a ribbon cassette detachably mounted on the carriage, the ribbon cassette including: a take-up reel having a portion receiving the first take-up bobbin, a feed reel having a portion receiving the first feed bobbin, a first guide reel having a portion receiving the second feed bobbin, a second guide reel having a portion receiving the second take-up bobbin, and an ink ribbon having ends respectively wound around the take-up reel and the feed reel and having a first portion extending from the feed reel to the first guide reel, a second portion extending from the first guide reel to a location between the thermal head and the platen, a third portion extending from the location to the second guide reel, and a fourth portion extending from the second guide reel to the wind-up reel; wherein the ink ribbon located between the thermal head and the platen moves at a second speed relative to the platen; and wherein the rotating speed of the second feed bobbin is controlled by the control means such that the first speed of the carriage is greater than the second speed of the ink ribbon.
Claim 5
Dependent Claim
311 words
A thermal transfer printer comprising: a frame; a platen fixedly connected to the frame; a carriage mounted on the frame such that the carriage is movable relative to the platen, the carriage including: a thermal head; a take-up motor; a first take-up bobbin connected to the take-up motor such that rotation of the take-up motor causes rotation of the first take-up bobbin; a second take-up bobbin connected to the first take-up bobbin such that rotation of the first take-up bobbin causes rotation of the second take-up bobbin; a first feed bobbin; a second feed bobbin; and control means for controlling a rotating speed of the first feed bobbin; means for moving the carriage at a first speed relative to the platen; and a ribbon cassette detachably mounted on the carriage, the ribbon cassette including: a take-up reel having a portion receiving the first take-up bobbin, a feed reel having a portion receiving the first feed bobbin, a first guide reel having a portion receiving the second feed bobbin, a second guide reel having a portion receiving the second take-up bobbin, and an ink ribbon having ends respectively wound around the take-up reel and the feed reel and having a first portion extending from the feed reel to the first guide reel, a second portion extending from the first guide reel to a location between the thermal head and the platen, a third portion extending from the location to the second guide reel, and a fourth portion extending from the second guide reel to the wind-up reel; wherein the ink ribbon located between the thermal head and the platen moves at a second speed relative to the platen; and wherein the rotating speed of the second feed bobbin is controlled by the control means such that the first speed of the carriage is greater than the second speed of the ink ribbon.
Claim 6
Dependent Claim
106 words
A thermal transfer printer according to claim 3, wherein the carriage moving means includes a drive belt having a plurality of teeth; and wherein the control means comprises: a feed gear coaxially formed with said second feed bobbin; and a drive gear rotatably mounted on said carriage and engaged with the feed gear and the teeth of said drive belt, said drive gear being rotated by the drive belt as said carriage is moved relative to the platen, said drive gear and said feed gear having a gear ratio such that the second speed the ink ribbon is a predetermined amount less than the first speed.