| 摘要 |
PURPOSE:To prevent a shortcircuit between a recording electrode and a common electrode and to enable high quality stable printing, by arranging two rows of electrodes in zigzag manner perpendicularly to printing direction with predetermined interval, then employing one row of electrode as recording electrodes while the other row of electrodes as common electrodes and conducting power while making contact with a sheet member. CONSTITUTION:When a recording head is moved in the direction of an arrow A, discrete electrodes 1a-1d of a common electrode 1 are maintained at the same potential, while potential is applied selectively onto the electrodes 2a-2c in a recording electrode 2 according to a print pattern so as to conduct power to the electrodes 2a-2c. Here, abraded powder 9 adheres to the recording electrode 2. Upon the finish of single line printing, a recording paper is advanced by a single line then a recording head is moved in reverse direction from arrow A and printing is performed. At this time, abraded powder 10 adheres to the recording electrode 2. Abraded powder 9 adhered to a preceding electrode 2 is scratched off through friction with a sheet member 6. Since common electrodes 1 and recording electrodes 2 are arranged in zigzag manner perpendicularly to the printing direction with predetermined interval, shortcircuit between the common electrode 1 and the recording electrode 2 can be prevented even if abraded powder 9, 10 adheres between the electrodes 1 and 2. |
