• Code: 59.90
• Display: 59.90 ERROR
• Description: An error occurred with the ETB motor during startup or rotation.
• Remedy: 1. Check that connectors J5002 on the ETB motor and J206 on the DC controller are seated correctly. 2. Replace the ETB. 3. Replace the DC controller.

• Code: 59.A0
• Display: 59.A0 ERROR
• Description: An error occurred with the ETB motor during startup or rotation.
• Remedy: 1. Check that connectors J5002 on the ETB motor and J206 on the DC controller are seated correctly. 2. Replace the ETB. 3. Replace the DC controller.

• Code: 59.C0
• Display: 59.C0 ERROR
• Description: An error occurred with the developing separation-drive assembly.
• Remedy: 1. Check that the following connectors on the driver PCA are seated correctly: J403, J405, J213. 2. Check that connector J1020 on the DC controller is seated correctly. 3. Check that connector J5008 on the fuser motor is seated correctly. 4. Replace the developing separationdrive assembly. 5. Replace the memory-controller PCA. 6. Replace the fuser.

• Code: 59.F0
• Display: 59.F0 ERROR
• Description: The transfer rollers in the ETB are not engaged.
• Remedy: 1. Check that the following connectors on the driver PCA are seated correctly: J5002 on the ETB motor J5011 on the transfer-roller separation solenoid J206 on the driver PCA J1019 on the DC controller 2. Replace the ETB motor. 3. Replace solenoid SL5011. 4. Replace the ETB. 5. Replace the high-voltage power supply PCA.

• Code: 62
• Display: 62 NO SYSTEM
• Description: No system was found.
• Remedy: 1. Turn the printer off and then on. 2. Reseat the firmware DIMM. Make sure that it is in slot 1 (the bottom slot). 3. Download new firmware. 4. Replace the firmware DIMM.

• Code: 64
• Display: 64 ERROR
• Description: For the HP Color LaserJet 3600 Series printers only A scan buffer error has occurred.
• Remedy: 1. Turn the printer off and then on. 2. Replace the firmware DIMM. 3. Replace the formatter PCB.

• Code: 68.X
• Display: 68.X PERMANENT STORAGE FULL
• Description: A nonvolatile storage device is full. Press OK to clear the message. Printing can continue, but unexpected behavior could result.
  X Description: 0 Onboard NVRAM 1 Removable disk (flash or hard)
• Remedy: 1. Press OK to continue. 2. For 68.0 errors, turn the printer off and then on. 3. If the error persists, perform an NVRAM initialization. 4. For 68.1 errors, use the HP Web Jetadmin software to delete files from the disk drive.t

• Code: 68.X
• Display: 68.X PERMANENT STORAGE WRITE FAIL
• Description: A nonvolatile storage device is full. Press OK to clear the message. Printing can continue, but unexpected behavior could result.
  X Description: 0 Onboard NVRAM 1 Removable disk
• Remedy: 1. Press OK to continue. 2. For 68.0 errors, turn the printer off and then on. 3. If the error persists, perform an NVRAM initialization. 4. For 68.1 errors, use the HP Web Jetadmin software to delete files from the disk drive.