Service manual

Chapter2 Operating Principles
Rev.A
2-2
9
After the data transmission by the nozzle selector(IR2C72C) is completed and a certain time passes,
trapezoidal wave form generated by the common drive circuit once sends electric current to the PZT
for the proper nozzles which are determined in the nozzle selector circuit. This motivates PZT and
ejects the ink in the cavity. The figure below shows normal dot data transmission timing in order to form
1 dot.
Figure 2-26. Timing Chart at the Generation of Normal Dot