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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.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
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.
55.00.YY DC controller error To continue, turn off then on
Description
DC controller PCA error
◦
55.00.01 (event code)
DC controller memory error
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55.00.03 (event code
DC controller no engine response
◦
55.00.04 (event code
DC controller communications timeout
ENWW
Tools for troubleshooting
445