After replacing the PCDU, execute the following. For the details of the procedure, refer to "Color Registration and Auto Color Calibration (ACC)".
- Do the "Auto Color Calibration (ACC)" for the copier mode & printer mode.
 - Do the Color Registration.
 
After replacing the PCDU, execute the following. For the details of the procedure, refer to "Color Registration and Auto Color Calibration (ACC)".