• Code: 978.00 ... 978.99
• Description: Network Error Bad checksum while programming network port
• Remedy: Contact your next level of support.

• Code: 979.00 ... 979.99
• Description: Network Error Flash parts failed while programming network port.
• Remedy: Contact your next level of support.

• Code: 980.00 ... 980.99
• Description: <device> Communications Error Unreliable communications with specified device.
• Remedy: • POR the printer. • If the error message persists, replace the system board.

• Code: 981.00 ... 981.99
• Description: <device> Communications Error Protocol violation by specified device.
• Remedy: • POR the printer. • If the error persists, replace the system board.

• Code: 982.00 ... 982.12
• Description: <device> Communications Error Communications error by specified device.
• Remedy: 1. Turn the power off. 2. Remove, and reinstall the option. 3. Turn the main power back on. 4. Check all option interface connections if the problem remains.

• Code: 983.00 ... 983.99
• Description: <device> Communications Error Invalid command parameter by specified device.
• Remedy: • POR the printer. • If the error message persists, replace the system board.

• Code: 984.00 ... 984.99
• Description: <device> Communications Error Invalid command parameter by specified device.
• Remedy: • POR the printer. • If the error message persists, replace the system board.

• Code: 990.00 ... 990.29
• Description: Option Error Output error
• Remedy: Contact your next level of support.