(57) 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.
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