Description: Internal duplex drive motor encoder not detected failure The duplex drive motor encoder detection is lost during normal operation
Remedy: 1. Check all the connections on the duplex drive motor assembly. 2. Check all the connections on the system card assembly. 3. Replace the duplex drive motor assembly if problem remains.
Code: 916.01
Description: Internal duplex drive motor over speed failure The duplex drive motor does not rotate at the specified speed.
Remedy: 1. Check all the connections on the duplex drive motor assembly. 2. Check all the connections on the system card assembly. 3. Replace the duplex drive motor assembly if problem remains.
Code: 920.00 ... 920.82
Description: Fuser error
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 (T650, T652, T654)”. 5. Replace the LVPS card assembly if problem remains. Go to “System card assembly removal (T650, T652, T654, T656)” or “LVPS card assembly removal (T652, T654)”.
Code: 922.00 ... 922.82
Description: Fuser error Fuser warm-up failure
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 (T650, T652, T654)”. 5. Replace the LVPS card assembly if problem remains. Go to “System card assembly removal (T650, T652, T654, T656)” or “LVPS card assembly removal (T652, T654)”.
Code: 923.00 ... 923.76
Description: Fuser over temperature failure.
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. Go to “Fuser unit assembly removal (T650, T652, T654)”.
Code: 924.00 ... 924.76
Description: Open fuser thermistor check Fuser type = 1 The fuser thermistor might be faulty.
Remedy: Replace the fuser unit
Code: 925.00 ... 925.77
Description: Incorrect fuser or fuser lamp detected. Fuser type = 1 The machine detected a 115 V lamp in a 220 V machine. The fuser lamp has an excessive wattage rating.
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
Code: 927.01 ... 927.17
Description: Main cooling fan over speed failure. The main cooling fan does not reach the specified speed. Print cartridge cooling fan failure The print cartridge cooling fan is obstructed or has failed.
Remedy: 1. Check for cooling fan obstructions. 2. Check the connections on the main cooling fan. 3. Replace the main cooling fan. 3. Replace the print cartridge cooling fan.