Ricoh MP CW2201 Field Service Manual page 676

6. Troubleshooting
SC211-02
SC211-03
670
D Carriage Hardware Error
Response of hardware error from motor control
• Horizontal motor connector loose, broken, defective
• Horizontal motor blocked by an obstacle
• Horizontal encoder strip dirty
• Horizontal encoder strip loose, broken, defective, or installed incorrectly
• Horizontal encoder sensor connector loose, broken, defective
• Horizontal encoder installed incorrectly
• MCU connector loose, broken, defective
• Horizontal encoder sensor defective
• Horizontal motor defective
• MCU defective
Motor load error on motor (defective or broken), sensor (defective, broken, or
position error), encoder sheet (broken, position error, or dirty), and others.
• Check for loose connectors of the sensor monitor, position error of the
sensor encoder sheet, and dirt or scratches on the encoder sheet, and
then turn the main power switch OFF and back ON.
• If the carriage does not move first, replace the motor.
• If the carriage moves first but is not recovered, replace the sensor.
• Replace BICU.
D Main Scan Direction Error
Response of moving direction error from motor control
Wrong connection of harnesses on the motor or encoder.
• If the machine works correctly, check for loose connector of the sensor
monitor, position error of the sensor encoder sheet, and dirt or scratches
on the encoder sheet, and then turn the main power OFF and back ON.
• If the error has been recovered and the motor connection was not
correct, connect the harness +/- connection in reverse.
• If the error has been recovered and the encoder connection was not
correct, connect the harness A/B connection in reverse.