EP0177885A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and device for registering printing press
Assignee: Dai Nippon Printing Co Ltd
•
Filing: 1985-10-01
•
Granted: —
•
Expires: 2005-10-01
Abstract
Abstract 57 Disclosed in this specification are (1) a registering method for a printing press comprising the steps for magnifying a pattern of a printed medium and displaying it on a display device; inputting the coordinates of a position of each color pattern for a predetermined element of the magnified and displayed image by coordinate input means; determining a registration error between respective colors based on the coordinates of each color position and the magnification of the image; calculating a quantity required for adjustment of the position of a plate cylinder based on said registration error; and effecting the registering of the printing press depending upon the results of this calculation: (2) a device for inputting a pattern of a printed medium on a printing press, displaying the pattern on enlarged scale on the screen of a display device, inputting the coordinates of the position of each color pattern for a predetermined element within the magnified and displayed image by coordinate input means, determining a registration error between respective colors from the coordinates of the position of each color and the magnification of the image, calculating a quantity required for the adjustment of the position of a plate cylinder based on said registration error and effecting the registering of the printing press in response to the results of this calculation: and (3) a device for displaying a pattern of a printed medium on enlarged scale on the screen of a display device, inputting the coordinates of the position of each color pattern by a friction input means by utilizing a predetermined element within the magnified and displayed image and determining a registration error between respective colors from the coordinates of the position of each color and the magnification of the image.
Inventors
- 👤 Daiji Suzuki
- 👤 Kenji Yamada
- 👤 Michiaki Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 23:31
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/08; B41F13/10; B41F13/12; B41F33/00; B41F33/0036
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
99 words
A registering method for a multicolor printing press comprising the steps of magnifying and displaying a pattern of a printed medium on a display device; entering inputs of the coordinates of positions of each color pattern for a predetermined element of the magnified and displayed image by coordinate input means; determining registration errors between respective colors based on the coordinates of each color position and the magnifying power of the image; calculating quantities required for adjustment of the positions of plate cylinders based on said registration errors; and registering the printing press depending upon the results of this calculation.
Claim 2
Dependent Claim
99 words
A registering method for a multicolor printing press comprising the steps of magnifying and displaying a pattern of a printed medium on a display device; entering inputs of the coordinates of positions of each color pattern for a predetermined element of the magnified and displayed image by coordinate input means; determining registration errors between respective colors based on the coordinates of each color position and the magnifying power of the image; calculating quantities required for adjustment of the positions of plate cylinders based on said registration errors; and registering the printing press depending upon the results of this calculation.
Claim 3
Dependent Claim
106 words
A registering device for a printing press comprising a pattern input means for inputting a pattern of a printed medium; a display for magnifying and displaying said pattern; means for deriving the coordinates of the positions of a predetermined element for each color within the magnified and displayed image; means for determining registration errors between respective colors from the magnification of the image.displayed on said display and the coordinates of the positions of said predetermined element and calculating quantities required for the adjustment of the positions of plate cylinders; and means for registering the printing press depending upon the results of calculation by said calculating means.
Claim 4
Dependent Claim
106 words
A registering device for a printing press comprising a pattern input means for inputting a pattern of a printed medium; a display for magnifying and displaying said pattern; means for deriving the coordinates of the positions of a predetermined element for each color within the magnified and displayed image; means for determining registration errors between respective colors from the magnification of the image.displayed on said display and the coordinates of the positions of said predetermined element and calculating quantities required for the adjustment of the positions of plate cylinders; and means for registering the printing press depending upon the results of calculation by said calculating means.
Claim 5
Dependent Claim
30 words
A device as set forth in Claim 2 wherein a lens system and a video camera as said pattern input means and a cathode-ray tube as said display are provided.
Claim 6
Dependent Claim
24 words
A device as set forth in Claim 2 or 3 wherein said means for deriving the coordinates of a position comprises a light pen.
Claim 7
Dependent Claim
37 words
A device as set forth in Claim 2 or 3 wherein a cursor is displaced on the screen of said cathode-ray tube by means of a suitable position coordinate input means, whereby inputting the coordinates of positions.
Claim 8
Independent Claim
37 words
A device as set forth in any of Claims 2 to 5 further comprising means for obtaining quantities required for adjustment of the positions of each color plate cylinder based on the registration errors between respective colors.
Claim 9
Independent Claim
42 words
A device as set forth in any of Claims 2 to 6 wherein a horizontal or vertical line of the image displayed on enlarged scale on the screen of said display device is inputted, whereby the coordinates of said position are corrected.
Claim 10
Independent Claim
30 words
A device as set forth in any of Claims 2 to 7 wherein said display device magnifying and focusing on a screen a light image transmitted through a lens system.
Claim 11
Independent Claim
36 words
A device as set forth in any of Claims 2, 3 and 6 to 8 wherein a transparent digitizer is placed upon the screen of said display device, whereby the coordinates of a position are inputted.
Claim 12
Independent Claim
37 words
A device as set forth in any of claims 2 to 9 wherein said pattern input means is provided on the printing press so as to input the pattern of a printed medium on the printing press.
Claim 13
Dependent Claim
54 words
A registering device as set forth in Claim 10 wherein a video camera or a high-speed video camera is used as means for inputting a pattern; and an image recording device such as VTR (video tape recorder) or a frame memory is provided, whereby a recording mechanism capable of instantaneous pattern recording is provided.
Claim 14
Dependent Claim
78 words
A registering device as set forth in Claim 10 or 11 wherein said pattern input means comprises an input means for inputting the coordinates of positions of a predetermined portion of a pattern on a plate to be inputted, a means for displacing input cameras on the printing press and a rotation phase detecting means for detecting the rotation condition of plate cylinders of the printing press, whereby an arbitrary portion on a printed medium can be inputted.
Claim 15
Dependent Claim
63 words
A registering device as set forth in Claim 10 wherein said pattern input means is such that a video camera or a high-speed video camera is used in combination with a shutter or a stroboscope to permit an instantaneous exposure to the printed medium running on the printing press, whereby still images are intermittently displayed and consequently one perceives a continuous still image.
Claim 16
Independent Claim
114 words
A device for determining registration errors in a printed medium comprising a display device for magnifying and displaying a pattern of a printed medium, means for deriving the coordinates of a position of a predetermined element for respective colors within the magnified image displayed on said display device, means for determining registration errors between for respective colors from the magnification of the image displayed on said display device and the coordinates of the position of said predetermined element, means for determining the quantities for adjusting the positions of the plate cylinders in response to said registration errors, and means for outputting to display and/or print said quantities for adjusting the positions of the plates.
Claim 17
Independent Claim
114 words
A device for determining registration errors in a printed medium comprising a display device for magnifying and displaying a pattern of a printed medium, means for deriving the coordinates of a position of a predetermined element for respective colors within the magnified image displayed on said display device, means for determining registration errors between for respective colors from the magnification of the image displayed on said display device and the coordinates of the position of said predetermined element, means for determining the quantities for adjusting the positions of the plate cylinders in response to said registration errors, and means for outputting to display and/or print said quantities for adjusting the positions of the plates.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.