• Code: E616-0001
• Description: (LBP7680Cx only)
• Causes: MEAP application was deleted by auto recovery at restart after E602-11XX.
• Remedy: Initialize MEAP area in the flash memory with the following procedures, and install MEAP application again. 1. Initialize the MEAP area. Service Mode > FUNCTION GR. > MEAP > MEAP FUNCTION > ON 2. Install MEAP application again.

• Code: E721-0001
• Description: Printer service call
• Causes: Printer engine which was not supported by the controller was connected. Printer engine of a different model was connected.
• Remedy: Only LBP7680Cx is supported.

• Code: E730-100A
• Description: Printer service call
• Causes: Printer service call
• Remedy: Only LBP7680Cx is supported.

• Code: E730-C000
• Description: Printer service call
• Causes: An error, such as failure in memory retrieval at initialization, occurred.
• Remedy: Only LBP7680Cx is supported.

• Code: E730-D001
• Description: Printer service call
• Causes: Printer communication error (communication error at initial communication and negotiation packet error)
• Remedy: Only LBP7680Cx is supported.

• Code: E733-0000
• Description: Printer communication error
• Causes: Printer communication error (communication error at initial communication and negotiation packet error)
• Remedy: - Turn OFF and then ON the power. - Replace the Engine Controller PCB.

• Code: E733-0001
• Description: Printer communication error
• Causes: Printer communication error (communication error after establishment of communication and parity error)
• Remedy: - Turn OFF and then ON the power. - Replace the Engine Controller PCB.

• Code: E733-0004
• Description: Printer communication error
• Causes: Printer communication error (undefined command error)
• Remedy: - Turn OFF and then ON the power. - Replace the Engine Controller PCB.