• Code: 133-273
• Description: Memory Pool Release Error Cause: Memory pool release error. (OS error)
• Remedy: 1. Turn the power Off and On to check that the error recurs. 2. Update to the latest F/W. 3. If the problem cannot be solved, replace (ESS PWB).

• Code: 133-274
• Description: Message Receive Error Cause: Message receive error. (OS error)
• Remedy: 1. Turn the power Off and On to check that the error recurs. 2. Update to the latest F/W. 3. If the problem cannot be solved, replace (ESS PWB).

• Code: 133-275
• Description: OS Call Error Cause: OS Call error.
• Remedy: 1. Turn the power Off and On to check that the error recurs. 2. Update to the latest F/W. 3. If the problem cannot be solved, replace (ESS PWB).

• Code: 133-276
• Description: File Open Error Cause: File open error.
• Remedy: 1. Turn the power Off and On to check that the error recurs. 2. Update to the latest F/W. 3. If the problem cannot be solved, replace (ESS PWB).

• Code: 133-277
• Description: File Close Error Cause: File close error.
• Remedy: 1. Turn the power Off and On to check that the error recurs. 2. Update to the latest F/W. 3. If the problem cannot be solved, replace (ESS PWB).

• Code: 133-278
• Description: File Erase Error Cause: File erase error.
• Remedy: 1. Turn the power Off and On to check that the error recurs. 2. Update to the latest F/W. 3. If the problem cannot be solved, replace the following parts in sequence. • (Fax PWB) • (ESS PWB)

• Code: 133-279
• Description: FAX CODEC I/F Error Cause: FAX CODEC I/F error.
• Remedy: 1. Turn the power Off and On to check that the error recurs. 2. Check the telephone line connection. Reconnect the telephone line connector. 3. Check the sending side fax. Receive the fax data from a good fax machine. 4. Update to the latest F/W. 5. If the error persists, ensure that the error is replicated after the printer is powered Off and then On, and then replace the following parts in sequence. • (Fax PWB) • (ESS PWB)

• Code: 133-280
• Description: ERR_FAX_TIME Cause: FAX timer error.
• Remedy: 1. Turn the power Off and On to check that the error recurs. 2. Update to the latest F/W. 3. If the problem cannot be solved, replace the following parts in sequence. • (Fax PWB) • (ESS PWB)