| 摘要 |
PROBLEM TO BE SOLVED: To prevent art work wiring on a head substrate from being restricted by exclusive wiring of a signal input part for inspection which has a device for inspection connected thereto in a liquid discharging apparatus. SOLUTION: Dummy voltage signals supplied from the inspection device through a check signal input terminal 37a of a connector 37 are alternatively applied via a multiplexer IC 35 to nozzle selection gates IC 33<SB>1</SB>, 33<SB>2</SB>and 33<SB>3</SB>as shown by ANODE1, ANODE2 and ANODE3. The dummy voltage signal inputted through the check signal input terminal is outputted through an inspection voltage output track to the nozzle selection gate IC selected at the multiplexer IC 35 on the basis of a chip selection signal given to a data and the like input terminal of the multiplexer IC 35 through a chip selection signal input terminal of the connector 37 from a controller. COPYRIGHT: (C)2006,JPO&NCIPI
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