• 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: 2.5V) +-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 PCDU. 2. Replace the defective PCDU.

• 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: 2.5V) +-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 PCDU. 2. Replace the defective PCDU.

• 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: 2.5V) +-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 PCDU. 2. Replace the defective PCDU.

• 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. Clean the drum gear position sensor. 2. Check the harness connection. 3. Replace the drum gear position sensor. 4. Replace the PCDU.

• Code: 381
• Description: Drum gear position sensor error: CMY
  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. Clean the drum gear position sensor. 2. Check the harness connection. 3. Replace the drum gear position sensor. 4. Replace the PCDU.

• Code: 396
• Description: Drum/Development motor error: K
  The machine detects a High signal from the drum/development motor for 2 seconds after the drum/development motor turned on.
• Causes: • Overload on the drum/development motor • Defective drum/development motor • Defective harness • Shorted 24 V fuse on the PSU • Defective interlock system
• Remedy: 1. Check or replace the harness. 2. Replace the drum/development motor. 3. Replace the 24V fuse on the PSU.

• Code: 397
• Description: Drum/Development motor error: CMY
  The machine detects a High signal from the drum/development motor for 2 seconds after the drum/development motor turned on.
• Causes: • Overload on the drum/development motor • Defective drum/development motor • Defective harness • Shorted 24 V fuse on the PSU • Defective interlock system
• Remedy: 1. Check or replace the harness. 2. Replace the drum/development motor. 3. Replace the 24V fuse on the PSU.

• Code: 400
• Description: ID sensor adjustment error
  When the Vsg error counter reaches "3", the machine detects "SC400". The Vsg error counter counts "1" when the Vsg detected by ID sensor is more than the value (default: 4.5V) specified with SP3324-005 or less than the value (default: 3.5V) specified with SP3324-006.
• Causes: • Dirty or defective ID sensor • Defective ID sensor shutter
• Remedy: 1. Check the harness of the ID sensor. 2. Clean or replace the ID sensor. • After replacing the ID sensor, input the ID sensor correction coefficient with SP3362-013 to -018. For details, refer to "ID sensor board" in the Replacement and Adjustment section. 3. Replace the BCU. 4. Replace the image transfer belt unit.