HP Color LaserJet Enterprise CP5525 Service Manual - Page 468

54.11.05 or 54.12.05 Media Sensor is not functioning properly 1. Clean the media sensor with a lint-free cloth and then turn the product off and then on. 2. 54.11.05: If the error persists replace the paper pickup assembly. The threshold level for the media sensor (Media Sensor Value) is located on a label on the paper pickup assembly. Use the Service menu to input this value into the product memory after replacing the paper pickup assembly. -or- 54.12.05: If the error persists replace the right door assembly. 3. 54.11.05: If the product has had parts removed or replace check the connector (J542) on the media sensor and the connector (J112) on the DC controller PCA. -or- 54.12.05: If the product has had parts removed or replace check the connector (J114) on the media sensor and the connector (J152) on the DC controller PCA. 54.0X.07 Drum home position sensor failure X = 5 black, X = 6 cyan, X = 7 magenta, X = 8 yellow 1. Turn the product off, and then on. 2. If the error persists, replace the main drive assembly. 3. If the product has had parts removed or replace, check the connector (J181) on the DC controller PCA. 54.0X.0B or 54.0X.0C Density sensor out of range error or Dhalf calibration failure X = 0 black, X = 1 cyan, X = 2 magenta, X = 3 yellow 1. Check the supplies status page to make sure the toner cartridges are not past their useful life. 2. Check the ITB for damage. 3. Make sure the CPR sensor is not contaminated with toner or paper dust. Clean the sensor with compressed air and soft brush. 4. If error persists, replace the registration sensor assembly. 54.0X.0D or 54.0X.0E Optical memory element abnormal or CPR sensor out of range 444 Chapter 3 Solve problems ENWW