Patent ID: 6036381
Filing Date: 2000-03-14
Classification: B41J

Abstract:
In a printer for printing a book (2) including a plurality of stacked sheets bound at a bound portion (1) in which said book (2) is opened and said opened book (2) is supported on a supporting surface (16) and fed in a feed direction parallel to said bound portion (1), and a left side page and a right side page of said book (2) are printed in a direction which is perpendicular to said feed direction, said printer comprising:(a) a supporting shaft (13) supported above said supporting surface (16) and extending in parallel relation with said supporting surface;(b) a channel (17) for receiving said bound portion (1), provided in a middle portion of said supporting surface (16) and extending in a direction which is perpendicular to said supporting shaft (13) thereby dividing said supporting surface (16) into a first area and a second area by said channel (17);(c) a first supporting frame (14) provided in proximity to said first area and pivotally supported on said supporting shaft (13);(d) a first rotating shaft (25) rotatably supported by said first supporting frame (14) in parallel with said supporting shaft (13);(e) a first upper feeding roller (26, 27) fixed on said first rotating shaft (25), and forced to engage said page located on said first area;(f) a second supporting frame (15) provided in proximity to said second area and pivotally supported on said supporting shaft (13);(g) a second rotating shaft (30) rotatably supported by said second supporting frame (15) in parallel with said supporting shaft (13);(h) a second upper feeding roller (31, 32) fixed on said second rotating shaft (30), and forced to engage said page located on said second area;(i) a universal joint (33) coupling said first rotating shaft (25)and said second rotating shaft (30); and(j) a driving means coupled to one of said first rotating shaft (25) and said second rotating shaft (30) for rotating said first and second rotating shafts (25, 30).