Cr Motor Driver Circuit - Epson SEIJ98006 Service Manual

EPSON Stylus Color 900

2.3.3 CR Motor Driver Circuit

An exclusive motor drive IC (LB1847: IC12) enables 4W1-2 phase
excitation on the hardware basis. A micro stepping motor is used for the
CR motor to move the carriage accurately and also to improve printing
accuracy by minimizing the motor's vibration during printing. Figure
2-15 shows the CR motor driver circuit block diagram.
Operating Principles
Figure 2-15. CR Motor Driver Circuit Block Diagram
Electrical Circuit Operation Principles
Revision C
67