• Code: 360
• Display: Set duplex unit 360: Duplex unit is open.
• Description: When duplex unit is removed from printer.
• Remedy: Does error recover by resetting duplex unit? Normal. Replace duplex unit or engine board.

• Code: 370
• Display: Check DUPLEX 370: Paper jam
• Description: Paper jam detected after paper rotated in duplex unit.
  Check paper jam in duplex unit.
• Remedy: Check paper jam in duplex unit. Remove jammed paper. Check/replace duplex unit.

• Code: 371
• Display: Check DUPLEX 371: Paper jam
• Description: Paper jam during paper feed from duplex unit.
  Check paper jam in duplex unit.
• Remedy: Check paper jam in duplex unit. Remove jammed paper. Check/replace duplex unit.

• Code: 372
• Display: Check DUPLEX 372: Paper jam
• Description: Check miss-feed in duplex unit.
• Remedy: Check miss-feed in duplex unit. Remove miss-fed paper and close cover. Check/replace duplex unit.

• Code: 380
• Display: Open front cover 380: Paper jam
• Description: Paper jam during paper feed from cassette 1, 2, 3, 4 or 5.
  Check miss-feed in duplex unit.
• Remedy: Check miss-feed in duplex unit. Remove miss-fed paper and set cassette. Check/replace cassette 1, 2, 3, 4, or 5.

• Code: 381
• Display: Open top cover 381: Paper jam
• Description: Paper jam detected between black ID and fuser
  1) Check paper jam between yellow ID and fuser. 2) Check fuser unit load.
• Remedy: 1) Check paper jam between yellow ID and fuser. 2) Check fuser unit load.
  Remove jammed paper. Replace fuser unit.

• Code: 382
• Display: Open top cover 382: Paper jam
• Description: Paper jam detected in fuser or during paper ejection from fuser.
  1) Check paper jam in fuser and between yellow ID and fuser. 2) Check if paper ejection switch is proper.
• Remedy: 1) Check paper jam in fuser and between yellow ID and fuser. 2) Check if paper ejection switch is proper.
  Remove jammed paper. Replace paper ejection switch.

• Code: 383
• Display: Open top cover 383: Paper jam
• Description: Paper jam detected when paper started to enter duplex print unit.
  Check paper jam in duplex unit or at entrance.
• Remedy: Check paper jam in duplex unit or at entrance. Remove jammed paper. Check/replace duplex unit.