• Code: 48.XX.YY
• Display: 48.XX.YY
• Description: A job framework internal error has occurred.
• Remedy: 1. No action should be necessary. 2. If the error persists, upgrade the product firmware. 3. If the issue persists, continue troubleshooting with the flowcharts for either Intermittent or Persistent 49 error troubleshooting (whichever is appropriate) in document c03122817, “HP LaserJet FutureSmart Devices - 49 Error Troubleshooting (Persistent and Intermittent)”.

• Code: 49.XX.YY
• Display: 49.XX.YY Error
• Description: A firmware error occurred. Corrupted print jobs, software application issues, non-product specific print drivers, poor quality USB or network cables, bad network connections or incorrect configurations, invalid firmware operations, or unsupported accessories can cause this error.
• Remedy: 1. Turn the product off, and then on. 2. If the error persists, check the following: • The error might be caused by a network connectivity problem, such as a bad interface cable, a bad USB port, or an invalid network configuration setting. • The error might be caused by the print job, due to an invalid print driver, a problem with the software application, or a problem with the file being printed. • Upgrading the product firmware might help resolve the error. See the product user guide for more information. When a 49 error occurs, the user sees a 49.XXXX message on the control panel (where XXXX is replaced by a combination of letters and numbers). A 49 error might happen at any time for multiple reasons. Although some types of 49 errors can be caused by hardware failures, it is more common for 49 errors to be caused by printing a specific document or performing some task on the product. 49 errors most often occur when a product is asked to perform an action that the product firmware is not capable of and might not have been designed to comply with, such as: • Printing files with unsupported programming commands • A unique combination of user environment and user interactions with the product • Interfacing with a third-party solution that was not designed to work with the product • Specific timing, network traffic, or concurrent processing of jobs Each of these interactions could cause the product firmware to initiate an action that the product cannot accomplish. In situations like this, the product might present the error if it has no other option. When these errors occur, the only way to recover is to turn the product's power off and back on. NOTE: LaserJet formatter PCAs are rarely the root cause of 49 service errors. Please do not replace the formatter or flash unless troubleshooting has identified the formatter as the root cause. If the error persists, continue troubleshooting with the flowcharts for either Intermittent or Persistent 49 error troubleshooting (whichever is appropriate) in document c03122817, ?gHP LaserJet FutureSmart Devices - 49 Error Troubleshooting (Persistent and Intermittent)

• Code: 50.WX.YZ
• Display: 50.WX.YZ Fuser error
• Description: The fuser has experienced an error. W = fuser error code, X = fuser mode, Y = previous printer sleep state, Z = next printer sleep state
• Remedy: W = 1 or W = 2: Low fuser temperature 1 or fuser warm-up failure 1. Reinstall the fuser. Check the connector (J128) between the fuser and the product. If it is damaged, replace the fuser. 2. W = 1: Reconnect the connector (J82) on the DC controller PCA. -or- W = 2: Reconnect the connectors (J53, J54 and J82) on the DC controller PCA. 3. Replace the fuser. 4. W = 2: Reconnect the connector (J62) on the low-voltage power supply PCA. 5. If the error persists, replace the low-voltage power supply. W = 3: High fuser temperature 1 1. Reinstall the fuser. Check the connector (J128) between the fuser and the product. If it is damaged, replace the fuser. 2. Reconnect the connector (J82) on the DC controller PCA. 3. Replace the fuser. 4. If the error persists, replace the low-voltage power supply. W = 4: Drive circuit fault 1. Check the power source. Make sure the power source meets product requirements. NOTE: If the power source does not meet the power frequency requirement of 40 to 70Hz, the fuser temperature control does not work properly and causes this error. 2. Reconnect the connector (J53) on the DC controller PCA. 3. If the error persists, replace the low-voltage power supply. W = 7: Fuser pressure-release mechanism failure 1. Reinstall the fuser. Check the connector (J128) between the fuser and the product. If it is damaged, replace the fuser. 2. Check the fuser pressure-release sensor flag. If it is damaged, replace the fuser. 3. Reconnect the connector (J221) of the fuser motor and the connector (J89) on the DC controller PCA. 4. Use the fuser motor (M299) drive test in the component test to verify that the fuser motor is properly functioning. If it is not, replace the fuser motor. 5. Replace the fuser. W = 8: Low fuser temperature 2 1. Reinstall the fuser. Check the connector (J128) between the fuser and the product. If it is damaged, replace the fuser. 2. Reconnect the connector (J54) on the DC controller PCA. 3. Replace the fuser. 4. Reconnect the connector (J62) on the low-voltage power supply PCA. 5. If the error persists, replace the low-voltage power supply. W = 9: High fuser temperature 2 1. Reinstall the fuser. Check the connector (J128) between the fuser and the product. If it is damaged, replace the fuser. 2. Reconnect the connector (J54) on the DC controller PCA. 3. Replace the fuser. 4. Reconnect the connector (J62) on the low-voltage power supply PCA. 5. If the error persists, replace the low-voltage power supply.

• Code: 51.00.10
• Display: 51.00.10 Beam detect error
• Description: A printer beam detect error occurred in the laser scanner.
• Remedy: 1. Turn the product off, and then on. 2. If the error persists, replace the laser/scanner and Laser scanner cable. On-site technician perform the following before replacing parts. 1. Reconnect connector (J145) on the laser/scanner. 2. Reconnect connectors (J86 and J93) on the DC controller. 3. If the error persists, replace the laser/scanner and Laser scanner cable.

• Code: 51.00.19
• Display: 51.00.19 / 51.00.20 Laser Scanner Error - Laser malfunction
• Description: A printer laser scanner error occurred.
• Remedy: 1. Turn the product off, and then on. 2. If the error persists, replace the laser/scanner and Laser scanner cable. On-site technician perform the following before replacing parts. 1. Reconnect connector (J145) on the laser/scanner. 2. Reconnect connectors (J86 and J93) on the DC controller. 3. If the error persists, replace the laser/scanner and Laser scanner cable.

• Code: 51.00.20
• Display: 51.00.19 / 51.00.20 Laser Scanner Error - Laser malfunction
• Description: A printer laser scanner error occurred.
• Remedy: 1. Turn the product off, and then on. 2. If the error persists, replace the laser/scanner and Laser scanner cable. On-site technician perform the following before replacing parts. 1. Reconnect connector (J145) on the laser/scanner. 2. Reconnect connectors (J86 and J93) on the DC controller. 3. If the error persists, replace the laser/scanner and Laser scanner cable.

• Code: 52.00.0
• Display: 52.00.00/52.00.20 Scanner Startup/Rotation error
• Description: A printer laser scanner startup (52.00.00) or rotation (52.00.20) error occurred.
• Remedy: 1. Turn the product off, and then on. 2. Use the scanner motor (M108) drive test in the component test to verify that the scanner motor is properly functioning. Listen for a high pitched whine from the motor. If laser scanner motor is not functioning, replace the laser scanner. On-site technician perform the following before replacing parts. 1. Reconnect connector (J145) on the laser/scanner. 2. Reconnect connectors (J86 and J93) on the DC controller. 3. If the error persists, replace the laser/scanner.

• Code: 52.00.20
• Display: 52.00.00/52.00.20 Scanner Startup/Rotation error
• Description: A printer laser scanner startup (52.00.00) or rotation (52.00.20) error occurred.
• Remedy: 1. Turn the product off, and then on. 2. Use the scanner motor (M108) drive test in the component test to verify that the scanner motor is properly functioning. Listen for a high pitched whine from the motor. If laser scanner motor is not functioning, replace the laser scanner. On-site technician perform the following before replacing parts. 1. Reconnect connector (J145) on the laser/scanner. 2. Reconnect connectors (J86 and J93) on the DC controller. 3. If the error persists, replace the laser/scanner.