Epson LQ-510 - Page 90

PRINCIPLES OF OPERATION
REV.-A
Since a stepper motor is used for the carriage motor, it is possible to hold at any position and switch printing
direction. The carriage motor control system is an open-loop system, which switches the phases in accord-
ance with set speeds.
Acceleration area ’ Print In area
’
(Accelerating) ?
Deceleration ’
Iconstan speed) area
(Decelerating)
Figure 2-55. Carriage Motor Control
2-48
LQ-510