Abstract: The present invention aims at an improved apparatus for introducing sheet smoothly into printing unit 10 even in case thickness of sheet is changed without any adjustment. The present invention premises a sheet-fed printing press whose sheet transfer path for a plurality of printing units 10 in modular fashion is composed of double-sized transfer and impression cylinders.

Abstract: Apparatus for introducing sheet is disclosed which mainly aims at feeding sheet smoothly into sheet-fed printing press even in case of thick sheet with higher resilient force. The present invention premises sheet-fed printing press with a plurality of printing units whose sheet transfer path is composed of double-sized transfer and impression cylinders 20, 18. Sheet introducing apparatus comprises: first transfer cylinder 30 of approximately the same construction with said double-sized transfer cylinder 20 and is disposed between sheet feeder 26 and first printing unit 10a, the center of rotation 34 being above feeding path for sheet 22, and second transfer cylinder 32 of also approximately the same construction with said double-sized impression cylinder 18 and is in contact with the lower portion of said first transfer cylinder 30 and said transfer cylinder 20 of said first printing unit 10a.

Abstract: The present invention aims at providing an improved sheet-fed printing press by which simple hologram surface can be, in line, formed on the printed sheet surface. To effect after-treatment, varnishing unit 24 is provided in succession to printing unit 10 and the varnishing unit 24 coats UV-setting-type varnish on the sheet 22. Following the varnishing unit 24, holographic finishing unit 38 is connected which comprises feeding means 44 for casting film 42 on which formed is hologram surface beforehand. The casting film 42 is led near the periphery of pressure cylinder 40 by feeding means 44 in synchronism with printing speed. Hologram surface of casting film 42 is pressed onto the coated sheet 22 by a pair of rollers 52, 54 which can controllably be positioned at make or break state in relation to the pressure cylinder 40. Between the pair of rollers 52, 54, UV lighting means 56 controllably emits UV ray toward the pressure cylinder 40.

Abstract: The present invention relates to register. adjustment apparatus for varnishing unit and, specifically, aims at virtually executing register adjustment in relation to varnishing unit which does not comprise register adjustment means in itself For this purpose, varnishing unit select button 38a for virtually selecting varnishing unit 26 as control object and adjustment program for varnishing unit are provided in register adjustment apparatus for printing unit 10. Register deviation which is input from numerical input button group 40 is converted in order to work register adjustment means 20 of printing unit 10 as needed. Thereby, machine production cost can greatly be reduced and aesthetic varnish coating can be done, because virtual register adjustment is executed by utilizing register adjustment means of printing unit.