Patent ID: 7980672
Filing Date: 2011-07-19
Classification: B41J

Abstract:
1. An inkjet printing apparatus comprising: a printing head which ejects ink to a printing medium; a first conductive member positioned at a reverse side of the printing medium being conveyed; a first electric-field generator for generating a first electric field between the printing head and the first conductive member; a second conductive member disposed at a position to receive the ink ejected outside of the printing medium; a second electric-field generator for generating a second electric field between the printing head and the second conductive member; a first controller configured to cause the printing head to eject the ink to the printing medium being conveyed; and a second controller configured to control the first electric-field generator and the second electric-field generator to (i) generate an electric field in a first case, where printing is performed without a margin on an end portion of the printing medium, and (ii) generate an electric field in a second case, where printing is performed with a margin on an end portion of the printing medium, and where the second electric field generated by the second electric-field generator is lower than in the first case.