• Code: SC367
• Description: TD sensor (Vt low) error 4: Y The Vt value of the black, magenta, cyan, or yellow TD sensor is below 0.5V for 10 counts.
• Remedy: • TD sensor harness disconnected, loose, defective • A drawer connector (located on the rear of a development unit) disconnected, loose, defective • TD sensor defective 1. Turn the machine OFF and ON. 2. Check the TD sensor connector and harness between the TD sensor and PCU for damage. Replace it if necessary. 3. Check the drawer connector. 4. Replace the TD sensor. 5. After replacing the TD sensor: • Do SP3801 003-006 to initialize the new black, magenta, cyan, or yellow TD sensor. • Execute SP3820 001 to do auto process control manually.

• Code: SC372
• Description: TD sensor adjustment error 1: K During TD sensor initialization with SP3801, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of 3.2±0.2V
• Remedy: • Film 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 1. Turn the machine OFF and ON. 2. Pull ouut the film seal from the black, magenta, cyan, or yellow PCU. 3. Do SP3812 001 to confirm that the developer was initialized correctly. The display should show "1111" if developer initialized correctly. 4. Check the TD sensor connector. 5. Check the TD sensor connector and harness between the TD sensor and PCU for damage. Replace it if necessary. 6. Check the drawer PCU connector. 7. Replace the TD sensor. 8. After replacing the TD sensor: • Do SP3801 003-006 to initialize the new black, magenta, cyan, or yellow TD sensor. • Execute SP3820 001 to do auto process control manually.

• Code: SC373
• Description: TD sensor adjustment error 2: M During TD sensor initialization with SP3801, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of 3.2±0.2V
• Remedy: • Film 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 1. Turn the machine OFF and ON. 2. Pull ouut the film seal from the black, magenta, cyan, or yellow PCU. 3. Do SP3812 001 to confirm that the developer was initialized correctly. The display should show "1111" if developer initialized correctly. 4. Check the TD sensor connector. 5. Check the TD sensor connector and harness between the TD sensor and PCU for damage. Replace it if necessary. 6. Check the drawer PCU connector. 7. Replace the TD sensor. 8. After replacing the TD sensor: • Do SP3801 003-006 to initialize the new black, magenta, cyan, or yellow TD sensor. • Execute SP3820 001 to do auto process control manually.

• Code: SC374
• Description: TD sensor adjustment error 3: C During TD sensor initialization with SP3801, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of 3.2±0.2V
• Remedy: • Film 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 1. Turn the machine OFF and ON. 2. Pull ouut the film seal from the black, magenta, cyan, or yellow PCU. 3. Do SP3812 001 to confirm that the developer was initialized correctly. The display should show "1111" if developer initialized correctly. 4. Check the TD sensor connector. 5. Check the TD sensor connector and harness between the TD sensor and PCU for damage. Replace it if necessary. 6. Check the drawer PCU connector. 7. Replace the TD sensor. 8. After replacing the TD sensor: • Do SP3801 003-006 to initialize the new black, magenta, cyan, or yellow TD sensor. • Execute SP3820 001 to do auto process control manually.

• Code: SC375
• Description: TD sensor adjustment error 4: Y During TD sensor initialization with SP3801, the output value of the black, magenta, cyan, or yellow TD sensor is not within the range of 3.2±0.2V
• Remedy: • Film 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 1. Turn the machine OFF and ON. 2. Pull ouut the film seal from the black, magenta, cyan, or yellow PCU. 3. Do SP3812 001 to confirm that the developer was initialized correctly. The display should show "1111" if developer initialized correctly. 4. Check the TD sensor connector. 5. Check the TD sensor connector and harness between the TD sensor and PCU for damage. Replace it if necessary. 6. Check the drawer PCU connector. 7. Replace the TD sensor. 8. After replacing the TD sensor: • Do SP3801 003-006 to initialize the new black, magenta, cyan, or yellow TD sensor. • Execute SP3820 001 to do auto process control manually.

• Code: SC396
• Description: Drum motor error 1: K When the drum motor of the black, magenta, cyan, or yellow PCU starts, the machine cannot detect a LOCK signal within 2 sec. The motor is trying to rotate but there is an excessive load on the drum shaft. The motor has no traction (due to a bent cleaning blade, for example).
• Remedy: • PCU drum dirty • PCU defective • Motor harness defective • DRB (Drive board) defective • Drum motor defective • Insufficient lubrication on a drum. Open PCU and apply toner to the drum surface

• Code: SC397
• Description: Drum motor error 2: M When the drum motor of the black, magenta, cyan, or yellow PCU starts, the machine cannot detect a LOCK signal within 2 sec. The motor is trying to rotate but there is an excessive load on the drum shaft. The motor has no traction (due to a bent cleaning blade, for example).
• Remedy: • PCU drum dirty • PCU defective • Motor harness defective • DRB (Drive board) defective • Drum motor defective • Insufficient lubrication on a drum. Open PCU and apply toner to the drum surface

• Code: SC398
• Description: Drum motor error 3: C When the drum motor of the black, magenta, cyan, or yellow PCU starts, the machine cannot detect a LOCK signal within 2 sec. The motor is trying to rotate but there is an excessive load on the drum shaft. The motor has no traction (due to a bent cleaning blade, for example).
• Remedy: • PCU drum dirty • PCU defective • Motor harness defective • DRB (Drive board) defective • Drum motor defective • Insufficient lubrication on a drum. Open PCU and apply toner to the drum surface