Patent ID: 8724177
Filing Date: 2014-05-13
Classification: B41C,B41F,G06K

Abstract:
1. A printing apparatus comprising: a base; a moving stage linearly movable along the base, wherein the moving stage has a lithographic plate seated on the top surface thereof, the lithographic plate having a printing pattern thereon; an automatic printing sheet feeder installed on the moving stage, wherein the automatic printing sheet feeder includes an unwinding roll, which supplies the printing sheet, a rewinding roll, which collects the printing sheet, and a plurality of guide rolls, which guide the printing sheet to pass through a printing area of the moving stage; a printing roll installed on the base, wherein the printing roll is installed by a bracket, which is fixed on the base, and is elevatable by a first elevating member; and an engraving roll installed on the bracket above the printing roll, the engraving roll being elevatable by a second elevating member, wherein the printing roll is disposed between the engraving roll and the lithographic plate and is configured to be alternatively contactable to the lithographic plate or the engraving roll, such that the printing roll performs printing by transferring ink from the lithographic plate to the printing sheet or by transferring ink from the engraving roll to the printing sheet.