| 摘要 |
Provided is a web detection device of a printing press capable of promptly detecting paper breakage, the web detection device being provided with: a printing unit which prints on a web being transported; a dryer, which is provided on the downstream side in the web transporting direction of the printing unit, and which dries the printed web; a chill roller, which is provided on the downstream side in the web transporting direction of the dryer, and around which the dried web is wound; and a detection device, which is provided in a vicinity of the chill roller, and which detects that the position in a web surface crossing direction of a web having been cut exceeds a predetermined allowable range.
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