Epson LQ-2550 Technical Manual page 139

2.3.7.3 PF Motor Control/Drive Circuit
The PF motor is driven only by the 2-2 phase switching system, and the minimum paper feeding amount
s 1/360 inch. Table 2-55 shows the various PF motor control relationships.
Table 2-55. Various PF Motor Control Relationships
Acceleration/
Paper Feeding
PF Motor Coil
Remark
Deceleration
Mode
Current [A/Coil] Amount [Inches]
Control
— — —
0.07 * 0.01
Holding
Not performed. Constant speed
Driving
Performed. At constant speed:
1440 [PPS]
2-93