• Code: 920.04
• Description: Fuser warm-up failure Fuser type = 1 The fuser hot roll is too cool when heating to desired temperature after slope change within standby control only.
• Remedy: 1. Turn the machine off/on and ensure the fuser unit assembly is properly installed. 2. Ensure the proper voltage fuser is installed in the machine. 3. Replace the fuser unit assembly if problem remains.

• Code: 920.06
• Description: Fuser warm-up failure Fuser type = 1 The fuser hot roll temperature does not increase while the lamp is turned on.
• Remedy: 1. Turn the machine off/on and ensure the fuser unit assembly is properly installed. 2. Ensure the proper voltage fuser is installed in the machine. 3. Check all connections on the fuser and LVPS card assembly. 4. Replace the fuser unit assembly if problem remains. Go to “Fuser unit assembly removal (X651, X652, X654, X656, and X658)”. 5. Replace the LVPS card assembly if problem remains. Go to “LVPS card assembly removal (X654, X656, and X658)”.

• Code: 920.07
• Description: Fuser warm-up failure Fuser type = 1 The fuser hot roll temperature is not maintained properly while the media in the fuser nip.
• Remedy: 1. Turn the machine off/on and ensure the fuser unit assembly is properly installed. 2. Ensure the proper voltage fuser is installed in the machine. 3. Check all connections on the fuser and LVPS card assembly. 4. Replace the fuser unit assembly if problem remains. Go to “Fuser unit assembly removal (X651, X652, X654, X656, and X658)”. 5. Replace the LVPS card assembly if problem remains. Go to “LVPS card assembly removal (X654, X656, and X658)”.

• Code: 920.25
• Description: Fuser under temperature Fuser type = 2 Fuser does not maintain proper operating temperature within steady state control.
• Remedy: 1. Turn the machine off/on and ensure the fuser unit assembly is properly installed. 2. Ensure the proper voltage fuser is installed in the machine. 3. Replace the fuser unit assembly if problem remains.

• Code: 920.26
• Description: Fuser warm-up failure Fuser type = 2 The fuser hot roll took too long to heat up after transitioning to new enhanced mode within standby control only.
• Remedy: 1. Turn the machine off/on and ensure the fuser unit assembly is properly installed. 2. Ensure the proper voltage fuser is installed in the machine. 3. Replace the fuser unit assembly if problem remains.

• Code: 920.27
• Description: Fuser warm-up failure Fuser type = 2 The fuser hot roll fell to far below desired temperature while in standby control.
• Remedy: 1. Turn the machine off/on and ensure the fuser unit assembly is properly installed. 2. Ensure the proper voltage fuser is installed in the machine. 3. Replace the fuser unit assembly if problem remains.

• Code: 920.28
• Description: Fuser warm-up failure Fuser type = 2 The fuser hot roll is too cool while checking for slope change in standby.
• Remedy: 1. Turn the machine off/on and ensure the fuser unit assembly is properly installed. 2. Ensure the proper voltage fuser is installed in the machine. 3. Replace the fuser unit assembly if problem remains.

• Code: 920.29
• Description: Fuser warm-up failure Fuser type = 2 The fuser hot roll is too cool when heating to desired temperature after slope change within standby control only.
• Remedy: 1. Turn the machine off/on and ensure the fuser unit assembly is properly installed. 2. Ensure the proper voltage fuser is installed in the machine. 3. Replace the fuser unit assembly if problem remains.