| 摘要 |
PURPOSE:To drastically improve the labor intensive imposition operation of book block copy originals by projecting and imaging desired reference frame lines onto layout paper from above. CONSTITUTION:This device is constituted of a layout paper placement tray 2 for placement of the layout paper to be patched up with the block copy originals, a reference frame line projector 3 for projecting the reference frame lines to guide the imposition of various block copies on the layout paper from above the layout paper placement tray and a fixing means 4 for fixing the projector 3 to the prescribed position on the tray 2. The desired reference frame lines to guide and instruct the imposition operation of the block copy originals can, therefore, be projected and imaged arbitrarily and easily on the layout paper and the visual observation of the reference frame lines is feasible at all times. The imposition operation is thus rapidly and exactly carried out. |
