Patent ID: 6386683
Filing Date: 2002-05-14
Classification: B41C

Abstract:
A printing apparatus, comprising:a rotation drum having a surface acting as a positive electrode and rotating in a rotation direction; a plurality of negative electrodes arranged in an axial direction of said rotation drum and spaced from said surface of said rotation drum to form an ink coagulation space there between; an injector for injection liquid ink into said ink coagulation space from a position upstream of said ink coagulation space; an energizer for energizing selected ones of said negative electrodes as said rotation drum is rotating for coagulating and accreting part of said ink in said ink coagulation space onto said surface of said rotation drum; a removal device arranged downstream of said ink coagulation space for removing residual non-coagulated ink from said surface of said rotation drum; a transfer device arranged downstream of said removal device for transferring ink which has been coagulated and accreted to said surface of said rotation drum onto an object to be printed; and a discharge port arranged upstream of said coagulation space and downstream of a point at which said liquid ink is injected by said injector for discharging a fluid towards at least said ink coagulation space.