Patent ID: 6190527
Filing Date: 2001-02-20
Classification: B41C,Y10S

Abstract:
An electrocoagulation printing apparatus comprising:a positive electrode having a positive electrode active surface;a printing head having a negative electrode spaced from the positive electrode active surface by a gap;feed means for supplying ink into the gap, dots of coagulated ink for representing it desired image produced from the ink on the positive electrode active surface as the negative electrode is electrically energized;removing means for removing any non-coagulated ink from the positive electrode active surface;transfer means for bringing a substrate into contact with the dots of coagulated ink to cause transfer of the coagulated ink from the positive electrode active surface onto the substrate and thereby imprint the substrate with the image;gap measurement means utilizing eddy-current for measuring the gap defining an inter-electrode distance between the positive electrode active surface and the negative electrode; andgap control means for controlling the gap according to output from the gap measurement means.