Pf Motor Driver Circuit - Epson SEIJ98006 Service Manual

EPSON Stylus Color 900

2.3.4 PF Motor Driver Circuit

Motor drive exclusive IC (LB1847: IC11) enables 4W1-2 phase
excitation on the hardware basis. A stepping motor is used for the PF
motor to move the carriage accurately and also to improve printing
accuracy by minimizing the motor's vibration during printing. Figure
2-16 shows the PF motor driver circuit block diagram.
Operating Principles
Figure 2-16. PF Motor Driver Circuit Block Diagram
Electrical Circuit Operation Principles
Revision C
69