• Code: 50.BX.YZ
• Display: 50.BX.YZ
• Description: High fuser temperature 3
• Remedy: action1. Remove and reinstall the fuser. Make sure that it is seated correctly.2. Make sure that there is no residual paper in the fuser.3. Check the paper type setting in the printer control panel menus and in the print driver. Make sure that the settings match and are correct for the type of media being used.4. Check the connector (J50) between the fuser and printer. If the connector is damaged, replace the connector assembly or the Fuser.5. If the issue persists, replace the fuser.6. If error still remains, replace the Fuser PCA assembly.

• Code: 50.WX.YZ
• Display: 50.WX.YZ
• Description: The fuser has experienced an error. W = fuser error code, X = fuser mode, Y = previous printer sleep state, and Z = next printer sleep state. Fuser modes and sleep states are listed after all 50.WX.YZ troubleshooting. The specific issues are: • 50.1X: Low fuser temperature • 50.2X: Fuser warm up service • 50.3X: High fuser temperature • 50.4X: Drive circuit fault • 50.6X: Open fuser circuit (heating element failure) • 50.7X: Depressurizing mechanism malfunction • 50.8X: Low fuser temperature 2 • 50.9X: High fuser temperature 2 • 50.AX: Low fuser temperature 3 • 50.BX: High fuser temperature 3
• Remedy: action1. Turn the printer off, and then on.2. If the error returns, turn the printer off and ensure the printer is directly plugged into a wall outlet (remove any surge protector or UPS).3. If the error persists, try a different wall outlet (if possible), one that is preferably on a dedicated or different circuit.4. Make sure that the correct fuser model is installed in the printer and that it meets the appropriate voltage requirements.5. Make sure the fuser is seated properly.6. If the error persists, continue troubleshooting based on the individual error listed below. Fuser Modes: 0 = Photo Media 1, 2, 3 1 = Normal-Auto Sense 2 = Normal 3 = Light 1 4 = Heavy 1 5 = Heavy 2 6 = Heavy 3 7 = Glossy 1 8 = Glossy 2 9 = Glossy 3 A = Glossy Film B = Transparency C = Label D = Envelope 1 E = Rough RoughPrinter State / Sleep States 0 = Printing 1 = Standby level 1 (no temperature control) 2 = Standby level 2 (high temperature control) 3 = Standby level 3 (middle temperature control) 4 = Standby level 2 (low temperature control) 5 = Middle sleep 6 = Deep sleep F = Power off

• Code: 51.00.YZ
• Display: 51.00.YZ
• Description: An error with the laser/scanner assembly has occurred in the printer. • 51.00.10: Beam detect error • 51.00.19: Laser malfunction
• Remedy: 1. Turn the printer off, and then on2. Check the connections to the laser scanners from the DC controller PCA (Connectors J126 and J127 On DCC).3. If the error persists, replace the laser scanner assembly.

• Code: 52.00.00
• Display: 52.00.00/52.00.20 Scanner Startup/Rotation error
• Description: A printer laser scanner error occurred. • 52.00.00 . Laser scanner startup error. • 52.00.20 . Laser scanner rotation error.
• Remedy: 1. Turn the printer off, and then on2. Reconnect the connector (J47) on the laser driver PCA and connector (J103) on the DC controller PCA.3. If the error persists, replace the laser scanner assembly.

• Code: 52.00.20
• Display: 52.00.00/52.00.20 Scanner Startup/Rotation error
• Description: A printer laser scanner error occurred. • 52.00.00 . Laser scanner startup error. • 52.00.20 . Laser scanner rotation error.
• Remedy: 1. Turn the printer off, and then on2. Reconnect the connector (J47) on the laser driver PCA and connector (J103) on the DC controller PCA.3. If the error persists, replace the laser scanner assembly.

• Code: 54.00.01
• Display: 54.00.01 / 54.00.03 (EVENT LOG ONLY)
• Description: Environment sensor abnormality warning
• Remedy: 1. Turn the printer off and then on.2. Reconnect the connector (J800) of the environment sensor and connector (J122) on the DC controller PCA.3. Replace the environment sensor.

• Code: 54.00.03
• Display: 54.00.01 / 54.00.03 (EVENT LOG ONLY)
• Description: Environment sensor abnormality warning
• Remedy: 1. Turn the printer off and then on.2. Reconnect the connector (J800) of the environment sensor and connector (J122) on the DC controller PCA.3. Replace the environment sensor.

• Code: 54.00.06
• Display: 54.00.06 or 54.00.14 or 54.00.19 (EVENT LOG ONLY)
• Description: Registration density sensor failure
• Remedy: 1. Open and close the right door (or turn on and then off the power switch) to perform the color plane registration. 2. Clean toner dust and debris from the front and rear density sensors and surrounding areas using compressed air and/or soft brush. NOTE: To clean the density sensors open right and front doors and remove both the Fuser and ITB. Close front door to expose the density sensors for cleaning. 3. Reconnect the connector (J120) on the DC controller PCA. 4. If the error persists, replace the registration density sensor assembly.