Symptom:- The CR motor assembly failed to drive the timing belt after power on.
Cause :- Foreign substances are lodged in the mechanism or The carriage motor assembly is defective.
Check Point:- Manually move the timing belt to see if the motor can rotate
freely.Measure the motor coil resistance(approx.>18Ohm). If the motor is shorted, also check the CR motor driver in MLC.
Solution:- Remove the foreign substances in CR assembly or Replace the CR motor and MLC if necessary..