(57) A print head control circuit includes a first diagnosis signal propagation wiring
for propagating a first diagnosis signal, a second diagnosis signal propagation wiring
for propagating a second diagnosis signal, a third diagnosis signal propagation wiring
for propagating a third diagnosis signal, a fourth diagnosis signal propagation wiring
for propagating a fourth diagnosis signal, a fifth diagnosis signal propagation wiring
for propagating a fifth diagnosis signal indicating a diagnosis result, a first voltage
signal propagation wiring for propagating a first voltage signal supplied to a driving
signal selection circuit, and a second voltage signal propagation wiring for propagating
a second voltage signal. The fifth diagnosis signal propagation wiring and the second
voltage signal propagation wiring are electrically coupled to each other via a fifth
terminal and a seventh terminal, and the first diagnosis signal propagation wiring
and the second diagnosis signal propagation wiring are located to be aligned. The
first diagnosis signal propagation wiring and the second voltage signal propagation
wiring are located to be adjacent to each other in a direction in which the first
diagnosis signal propagation wiring and the second diagnosis signal propagation wiring
are aligned.
|
|
