Service manual

Principles of Operation
Home position seek
The home position seek function causes the carriage to move to the home position
when the power goes on. Figure 2-39 shows how the home position seek function
operates.
When power is first applied, the printer executes 2-2 phase excitation for 20 or 30
ms (regardless of the phase switch setting). Meanwhile, the printer checks the
-HOME signal to determine whether the starting position is 1 or 2.
The carriage enters the home position only once during the initialization.
Figure 2-39 Home Position Seek
LQ-200/AP3000
2-41