Croma24 Service Manual
Replace Carrier Bushings
The carrier bushings are rated for approximately 1500 hours of operational usage. Given an average of about 3 hours a day of printing for 104 weeks, results in 1560 hours. Therefore, it is safe to approximate 1500 hours into 2 years of continuous service.
If not replaced, the wear on the bushings can result in erratic carrier motion and/or carrier axis failures. It can even cause cartridge headheight to become uneven.
To replace the carrier bushings, follow the Replacing the Carrier Bushing procedures in Chapter 5.
Servo Motor Winding Resistance Check
Figure 3-7. Servo Motor.
1.Disconnect the servo motor connection from the MPCB.
2.Using a standard ohmmeter or multimeter, connect the meter leads to the two wires going to the motor.
3.While manually rotating the servo motor, monitor the readings on the meter. The acceptable range is
5.If the measurement is found to be unsatisfactory, replace the servo motor.
