| 摘要 |
PROBLEM TO BE SOLVED: To enable different types of droplet discharge heads to share one type of wiring board. SOLUTION: The wiring board has a wiring group and is electrically connected to a droplet discharging head via a relay wiring member 106 on which a drive IC 141 is mounted. A first droplet discharging head 101 has: a drive electrode 129; a first constant-potential electrode 128; and a second constant-potential electrode 130. A second droplet discharging head 201 has a drive electrode 229 and a first constant-potential electrode 230. The wiring group has a first drive wiring 144 for inputting a first voltage to the drive IC 141, second drive wiring 143 for inputting a second voltage to the drive IC 141, first constant-potential wiring 145 electrically connected to the first constant-potential electrodes 128, 228, and a second constant-potential wiring 146 which can be electrically connected to the second constant-potential electrode 130. The second drive wiring 143 is provided with a first land 161. The second constant-potential wiring 146 is provided with a second land 162. The first land 161 and the second land 162 are juxtaposed so as to be paired and can be short-circuited with each other in the state they are separated from each other. COPYRIGHT: (C)2011,JPO&INPIT
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