| 摘要 |
An apparatus and a method for detecting a fault substrate are provided to detect the fault substrate without an additional part for detecting fault of the substrate in an inkjet printer within a system level of the inkjet printer. An apparatus for detecting a fault substrate includes a power supplying unit(110), a sensing unit(130), a calculating unit(135), and an inspection unit(140). The power supplying unit supplies power to a substrate heating unit and the substrate heating unit heats the substrate prepared on a head chip by using the power supplied thereto. The sensing unit detects the voltage transition of the power while the prepared substrate is discharged and heated by the applied power. The inspection unit compares a detected output with a prescribed transition, then outputs the comparing result as a fault substrate detecting signal to display a failure state of the substrate.
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