• Code: 10.4
• Display: 10.4 ERROR FUSER CALL FOR SERVICE
• Description: Fixing unit failure (wrong type)
• Remedy: 1. The rated voltage of the fixing unit does not match the line voltage. Action: Replace the fixing unit. 2. The type detection circuit in the power supply is defective. Action: Replace the power supply. 3. The DC controller PCB is defective. Action: Replace the DC controller PCB. VI-4.

• Code: 11.1
• Display: 11.1 ERROR SCANNER CALL FOR SERVICE
• Description: Scanner motor malfunction
• Remedy: 1. The scanner motor drive line connectors are loose. Action: Reconnect connector J1 on the scanner driver PCB, intermediate connector J18, and connector J207 on the DC controller PCB. 2. The scanner motor driver is defective. Action: Use the printer driver tester to rotate the scanner motor. If it does not rotate, replace the laser/scanner unit. 3. The DC controller PCB is defective. Action: Replace the DC controller PCB.

• Code: 11.2
• Display: 11.2 ERROR SCANNER CALL FOR SERVICE
• Description: Scanner motor malfunction
• Remedy: 1. The scanner motor drive line connectors are loose. Action: Reconnect connector J1 on the scanner driver PCB, intermediate connector J18, and connector J207 on the DC controller PCB. 2. The scanner motor driver is defective. Action: Use the printer driver tester to rotate the scanner motor. If it does not rotate, replace the laser/scanner unit. 3. The DC controller PCB is defective. Action: Replace the DC controller PCB.

• Code: 11.3
• Display: 11.3 ERROR SCANNER CALL FOR SERVICE
• Description: BD malfunction
• Remedy: 1. The BD signal line connector is loose. Action: Reconnect connector J6 on the BD PCB and J206 on the DC controller PCB. 2. The laser drive signal line connectors are loose. Action: Reconnect connector J1001 on the laser driver PCB, and connector J202 on the DC controller PCB. 3. The laser/scanner unit is defective. Action: Replace the laser/scanner unit. 4. The DC controller PCB is defective. Action: Replace the DC controller PCB.

• Code: 11.4
• Display: 11.4 ERROR LASER CALL FOR SERVICE
• Description: Laser malfunction
• Remedy: 1. The BD signal line connector is loose. Action: Reconnect connector J6 on the BD PCB and J206 on the DC controller PCB. 2. The laser drive signal line connectors are loose. Action: Reconnect connector J1001 on the laser driver PCB, and connector J202 on the DC controller PCB. 3. The laser/scanner unit is defective. Action: Replace the laser/scanner unit. 4. The DC controller PCB is defective. Action: Replace the DC controller PCB.

• Code: 12.1
• Display: 12.1 ERROR MOTOR CALL FOR SERVICE
• Description: Faulty main motor
• Remedy: 1. The main motor drive signal line connectors are loose. Action: Reconnect connector J12 of the main motor and connector J218 on the DC controller PCB. 2. The door switch on the switch/sensor PCB is defective. Action: Remove connectors J205 and J221 on the DC controller PCB. If J205-3 (+24V) and J221-1 (+24VB) on the cable side do not conduct when the door switch (SW1401) is ON, replace the switch/sensor PCB. 3. The main motor is defective. Action: Use the printer driver tester to rotate the main motor. If it does not rotate, replace it. 4. The DC controller PCB is defective. Action: Replace the DC controller PCB.

• Code: 12.2
• Display: 12.2 ERROR MOTOR CALL FOR SERVICE
• Description: Faulty main motor
• Remedy: 1. The main motor drive signal line connectors are loose. Action: Reconnect connector J12 of the main motor and connector J218 on the DC controller PCB. 2. The door switch on the switch/sensor PCB is defective. Action: Remove connectors J205 and J221 on the DC controller PCB. If J205-3 (+24V) and J221-1 (+24VB) on the cable side do not conduct when the door switch (SW1401) is ON, replace the switch/sensor PCB. 3. The main motor is defective. Action: Use the printer driver tester to rotate the main motor. If it does not rotate, replace it. 4. The DC controller PCB is defective. Action: Replace the DC controller PCB.

• Code: 13.1
• Display: 13.1 ERROR FAM 1 CALL FOR SERVICE
• Description: Electrical unit fan (FM3) failure
• Remedy: 1. The FM3 drive signal line connector is loose. Action: Reconnect connector J210 on the DC controller PCB and connectors J12 and J13. 2. The electrical unit fan is defective. Action: Disconnect connector J210 on the DC controller PCB. Turn the power switch ON and measure the voltage between connector J210-1 (FAN3D) and J210-3 (GND) on the DC controller PCB. If the voltage changes from 0 to more than 18V, replace the electrical unit fan. 3. The DC controller PCB is defective. Action: Replace the DC controller PCB.