• Code: 396-001
• Description: Drum rotation error: K Drum stop error The drum encoder counter for a color does not increase for 20 ms while the drum motor is rotating.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Developer stuck in the development unit • Motor lock due to the overload to the drum motor • Defective drum rotation sensor or harness • Defective drum motor • Defective or dirty drum encoder
• Remedy: 1. Check if the drum cleaning blade is bent. 2. Check or replace the drum cleaning unit. 3. Check or replace the development unit. 4. Check the harness connection. 5. Replace the drum rotation sensor 6. Replace the drum motor 7. Replace the drum encoder.

• Code: 396-002
• Description: Drum rotation error: K Drum rotation speed error The drum rotation time for a color change is more than ±5% compared with a previous rotation time after 4 seconds has elapsed from the drum start.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Developer stuck in the development unit • Motor lock due to the overload to the drum motor • Defective drum rotation sensor or harness • Defective drum motor • Defective or dirty drum encoder
• Remedy: 1. Check if the drum cleaning blade is bent. 2. Check or replace the drum cleaning unit. 3. Check or replace the development unit. 4. Check the harness connection. 5. Replace the drum rotation sensor 6. Replace the drum motor 7. Replace the drum encoder.

• Code: 396-003
• Description: Drum rotation error: K Drum abnormal rotation error The drum rotation pulse for a color changes more than ±20% compared with the standard rotation pulse.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Developer stuck in the development unit • Motor lock due to the overload to the drum motor • Defective drum rotation sensor or harness • Defective drum motor • Defective or dirty drum encoder
• Remedy: 1. Check if the drum cleaning blade is bent. 2. Check or replace the drum cleaning unit. 3. Check or replace the development unit. 4. Check the harness connection. 5. Replace the drum rotation sensor 6. Replace the drum motor 7. Replace the drum encoder.

• Code: 397-001
• Description: Drum rotation error: C Drum stop error The drum encoder counter for a color does not increase for 20 ms while the drum motor is rotating.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Developer stuck in the development unit • Motor lock due to the overload to the drum motor • Defective drum rotation sensor or harness • Defective drum motor • Defective or dirty drum encoder
• Remedy: 1. Check if the drum cleaning blade is bent. 2. Check or replace the drum cleaning unit. 3. Check or replace the development unit. 4. Check the harness connection. 5. Replace the drum rotation sensor 6. Replace the drum motor 7. Replace the drum encoder.

• Code: 397-002
• Description: Drum rotation error: C Drum rotation speed error The drum rotation time for a color change is more than ±5% compared with a previous rotation time after 4 seconds has elapsed from the drum start.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Developer stuck in the development unit • Motor lock due to the overload to the drum motor • Defective drum rotation sensor or harness • Defective drum motor • Defective or dirty drum encoder
• Remedy: 1. Check if the drum cleaning blade is bent. 2. Check or replace the drum cleaning unit. 3. Check or replace the development unit. 4. Check the harness connection. 5. Replace the drum rotation sensor 6. Replace the drum motor 7. Replace the drum encoder.

• Code: 397-003
• Description: Drum rotation error: C Drum abnormal rotation error The drum rotation pulse for a color changes more than ±20% compared with the standard rotation pulse.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Developer stuck in the development unit • Motor lock due to the overload to the drum motor • Defective drum rotation sensor or harness • Defective drum motor • Defective or dirty drum encoder
• Remedy: 1. Check if the drum cleaning blade is bent. 2. Check or replace the drum cleaning unit. 3. Check or replace the development unit. 4. Check the harness connection. 5. Replace the drum rotation sensor 6. Replace the drum motor 7. Replace the drum encoder.

• Code: 398-001
• Description: Drum rotation error: M Drum stop error The drum encoder counter for a color does not increase for 20 ms while the drum motor is rotating.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Developer stuck in the development unit • Motor lock due to the overload to the drum motor • Defective drum rotation sensor or harness • Defective drum motor • Defective or dirty drum encoder
• Remedy: 1. Check if the drum cleaning blade is bent. 2. Check or replace the drum cleaning unit. 3. Check or replace the development unit. 4. Check the harness connection. 5. Replace the drum rotation sensor 6. Replace the drum motor 7. Replace the drum encoder.

• Code: 398-002
• Description: Drum rotation error: M Drum rotation speed error The drum rotation time for a color change is more than ±5% compared with a previous rotation time after 4 seconds has elapsed from the drum start.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Developer stuck in the development unit • Motor lock due to the overload to the drum motor • Defective drum rotation sensor or harness • Defective drum motor • Defective or dirty drum encoder
• Remedy: 1. Check if the drum cleaning blade is bent. 2. Check or replace the drum cleaning unit. 3. Check or replace the development unit. 4. Check the harness connection. 5. Replace the drum rotation sensor 6. Replace the drum motor 7. Replace the drum encoder.