Error codes konica minolta

Code: C4101
Description:
Polygon motor rotation trouble. • The polygon motor fails to turn stably even after the lapse of a given period of time after activating the polygon motor. • Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating.
Causes:
• PH unit • PH relay board (PHRYB)
Remedy:
1. Check the connector between the PH unit-PHRYB CN14 for proper connection and correct as necessary. 2. Replace the PH unit. 3. PHRYB ICP4 conduction check. 4. Replace PHRYB.