Patent ID: 8791971
Filing Date: 2014-07-29
Classification: B41J,G03G

Abstract:
1. A method of producing a print on a recording medium, comprising: receiving positive and negative image data for the print to be produced; discharging a selected region of the recording medium; depositing first-sign charged fluid in a selected first-sign charged-fluid pattern on the selected region of the recording medium, the selected first-sign charged-fluid pattern corresponding to the positive image data; depositing second-sign charged fluid in a selected second-sign charged-fluid pattern on the selected region of the recording medium, the second-sign charged-fluid pattern corresponding to the negative image data and the second sign being different from the first sign; and depositing onto the recording medium charged dry ink having charge of the second sign, so that the deposited dry ink is attracted to the first-sign charged-fluid pattern and adheres to the recording medium in the first-sign charged-fluid pattern.