Print system and registration control method at print start time of the print system
First Claim
1. A print system comprising:
- a first printer for forming an image on a first side of a web;
a second printer being placed at the stage following the first printer for forming an image on a second side of the web, the first printer having at least mark formation means for forming a register mark at a predetermined location of the web and the second printer having at least a mark detector for detecting the register mark and a buffer plate being placed so that it can be advanced to and retreated from a web transport passage for giving a constant tension to the web; and
a controller for setting the buffer plate to a predetermined position during the period until the register mark is transported at a constant distance after passing through the mark detector.
2 Assignments
0 Petitions
Accused Products
Abstract
A print system having a first printer and a second printer being placed at the stage following the first printer, the first printer having a mark formation section for forming a register mark at a predetermined location of a web and the second printer having mark detector for detecting the register mark and a buffer plate being placed so that it can be advanced to and retreated from a web transport passage for giving a constant tension to the web comprises a controller for setting the buffer plate to a predetermined position during the period until the register mark is transported at a constant distance after passing through the mark detector.
27 Citations
11 Claims
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1. A print system comprising:
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a first printer for forming an image on a first side of a web;
a second printer being placed at the stage following the first printer for forming an image on a second side of the web, the first printer having at least mark formation means for forming a register mark at a predetermined location of the web and the second printer having at least a mark detector for detecting the register mark and a buffer plate being placed so that it can be advanced to and retreated from a web transport passage for giving a constant tension to the web; and
a controller for setting the buffer plate to a predetermined position during the period until the register mark is transported at a constant distance after passing through the mark detector. - View Dependent Claims (2, 7)
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3. A print system comprising:
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a first printer for forming a first image on a web;
a second printer being placed at the stage following the first printer for forming a second image on the web, the first printer having at least a mark formation section for forming a register mark at a predetermined location of the web and the second printer having at least a mark detector for detecting the register mark and a buffer plate being placed so that it can be advanced to and retreated from a web transport passage for giving a constant tension to the web; and
a controller for setting the buffer plate to a predetermined position during the period until the register mark is transported at a constant distance after passing through the mark detector. - View Dependent Claims (4)
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5. A print system comprising:
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a first printer for forming an image on a first side of a web;
a second printer being placed at the stage following the first printer for forming an image on a second side of the web, the first printer having at least web transport section for transporting the web and mark formation section for forming a register mark at a predetermined location of the web and the second printer having at least a web transport section for transporting the web, a mark detection section for detecting the register mark, a buffer plate being placed so that it can be advanced to and retreated from a web transport passage for giving a constant tension to the web, a position detector for detecting a position of the buffer plate, and a suction section for air-sucking the web for regulating the position of the web; and
a controller for controlling driving the web transport section and the suction section so that the buffer plate is positioned at a neutral position during the period until the register mark is transported at a constant distance after passing through the mark detector.
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6. A print system having a first printer for forming a first image on a web;
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a second printer being placed at the stage following the first printer for forming a second image on the web, the first printer having at least a web transport section for transporting the web and a mark formation section for forming a register mark at a predetermined location of the web and the second printer having at least a web transport section for transporting the web, a mark detector for detecting the register mark, a buffer plate being placed so that it can be advanced to and retreated from a web transport passage for giving a constant tension to the web, a position detector for detecting a position of the buffer plate, and a suction section for air-sucking the web for regulating the position of the web; and
a controller for controlling driving the web transport section and the suction section so that the buffer plate is positioned at a neutral position during the period until the register mark is transported at a constant distance after passing through the mark detector.
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8. A registration control method at print start time of a print system having a first printer for forming an image on a first side of a web and a second printer being placed at the stage following the first printer for forming an image on a second side of the web, the first printer having at least a mark formation section for forming a register mark at a predetermined location of the web and the second printer having at least a mark detector for detecting the register mark and a buffer plate being placed so that it can be advanced to and retreated from a web transport passage for giving a constant tension to the web, said method comprising the step of:
setting the buffer plate to a predetermined position during the period until the register mark is transported at a constant distance after passing through the mark detector. - View Dependent Claims (9)
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10. A registration control method at print start time of a print system having a first printer for forming a first image on a web and a second printer being placed at the stage following the first printer for forming a second image on the web, the first printer having at least mark formation section for forming a register mark at a predetermined location of the web and the second printer having at least mark detector for detecting the register mark and a buffer plate being placed so that it can be advanced to and retreated from a web transport passage for giving a constant tension to the web, said method comprising the step of:
setting the buffer plate to a predetermined position during the period until the register mark is transported at a constant distance after passing through the mark detector. - View Dependent Claims (11)
Specification