The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 1984
Filed:
Sep. 13, 1982
Harry M Greiner, Offenbach am Main, DE;
Abstract
An apparatus and method for checking and automatically correcting register adjustment of a sheet-fed printing press at the same time as remote densitometric measurement of an ink density check strip for ink fountain key adjustment. To read alignment marks printed parallel to the ink density check strip, a second optical sensor is mounted on the ink density scanner already used in practice to traverse and read the ink density check strip. A register control computer accepts the signal from the second optical sensor, detects the relative positions of the scanned alignment marks, compares the relative positions to each other and calculates axial, peripheral, and skew register adjustments. Position information is exchanged between the register control computer and the corresponding ink density control computer. The measured positions of the ink density check strip segments, for example, can be used in part to determine the positions of the register marks.