• Code: 366
• Description: TD sensor (Vt high) error 2: C
  The Vt value of the black, magenta, cyan, or yellow TD sensor is below the specified value with SP3020-004 (default: 0.5V) for 10 counts.
• Causes: TD sensor harness disconnected, loose, defective. A drawer connector disconnected, loose, defective. TD sensor defectiver.
• Remedy: 1. Check the black, magenta, cyan, or yellow TD sensor connector and harness between the TD sensor and PCU for damage. 2. Check the drawer connector. 3. Replace the defective PCU.

• Code: 367
• Description: TD sensor (Vt high) error 2: Y
  The Vt value of the black, magenta, cyan, or yellow TD sensor is below the specified value with SP3020-004 (default: 0.5V) for 10 counts.
• Causes: TD sensor harness disconnected, loose, defective. A drawer connector disconnected, loose, defective. TD sensor defectiver.
• Remedy: 1. Check the black, magenta, cyan, or yellow TD sensor connector and harness between the TD sensor and PCU for damage. 2. Check the drawer connector. 3. Replace the defective PCU.

• Code: 372
• Description: TD sensor adjustment error: K
  During TD sensor initialization, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of the specified value with SP3238-001 to -004 (default: 2.7V) +- 0.2V
• Causes: Heat seal not removed from a new developer pack. TD harness sensor disconnected, loose or defective. TD sensor defective. Harness between TD sensor and drawer disconnected, defective.
• Remedy: 1. Remove the heat seal from each PCU. 2. Replace the defective PCU.

• Code: 373
• Description: TD sensor adjustment error: M
  During TD sensor initialization, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of the specified value with SP3238-001 to -004 (default: 2.7V) +- 0.2V
• Causes: Heat seal not removed from a new developer pack. TD harness sensor disconnected, loose or defective. TD sensor defective. Harness between TD sensor and drawer disconnected, defective.
• Remedy: 1. Remove the heat seal from each PCU. 2. Replace the defective PCU.

• Code: 374
• Description: TD sensor adjustment error: C
  During TD sensor initialization, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of the specified value with SP3238-001 to -004 (default: 2.7V) +- 0.2V
• Causes: Heat seal not removed from a new developer pack. TD harness sensor disconnected, loose or defective. TD sensor defective. Harness between TD sensor and drawer disconnected, defective.
• Remedy: 1. Remove the heat seal from each PCU. 2. Replace the defective PCU.

• Code: 375
• Description: TD sensor adjustment error: Y
  During TD sensor initialization, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of the specified value with SP3238-001 to -004 (default: 2.7V) +- 0.2V
• Causes: Heat seal not removed from a new developer pack. TD harness sensor disconnected, loose or defective. TD sensor defective. Harness between TD sensor and drawer disconnected, defective.
• Remedy: 1. Remove the heat seal from each PCU. 2. Replace the defective PCU.

• Code: 380
• Description: Drum gear position sensor error: K
  The machine does not detect the drum position signal for 3 seconds at the drum phase adjustment.
• Causes: • Dirty or defective drum gear position sensor
• Remedy: 1. Replace the drum gear position sensor. 2. Replace the PCU.

• Code: 381
• Description: Drum gear position sensor error: M
  The machine does not detect the drum position signal for 3 seconds at the drum phase adjustment.
• Causes: • Dirty or defective drum gear position sensor
• Remedy: 1. Replace the drum gear position sensor. 2. Replace the PCU.