B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
B41J 29/42 (2006.01) B41F 33/00 (2006.01) B41J 29/20 (2006.01) B41J 29/46 (2006.01)
Patent
CA 2058242
A print monitoring apparatus for monitoring a print transported out of a printing unit comprises a defect position discrimination unit for discriminating a position of a defect on a print web of the print fed from the printing unit, a de- fect memory unit for storing defect position information given from the defect position discrimination unit and record infor- mation containing defect occurrence time, a number of succes- sive occurrence pages, a roll paper name and a number of used pages, and a display unit for displaying the information stored in the defect memory unit. In another aspect, a print monitoring apparatus for monitoring a print transported out of a printing unit comprises a print defect detection unit for detecting defect on a print web of the print fed from the printing unit, the defect detection unit including a mon- itoring sensor for dividing a print surface of the print web into a plurality of pixels and converting information of pixels into electric signals representing density information of the respective pixels, a central processing unit for pro- cessing information data regarding the density information of the respective pixels from the print defect detection unit, and a defect content discrimination unit for discriminating defect content in accordance with information data from the central processing unit and preliminarily set reference for the discrimination.
Hashimoto Yutaka
Hayashi Makoto
Iida Mitsuhiko
Kaneko Sizunori
Nakazato Masahiro
Fetherstonhaugh & Co.
Toshiba Kikai Kabushiki Kaisha
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