• Code: 344
• Description: Drum cleaning motor LOCK error: K. The lock signal remained HIGH or LOW for longer than the prescribed time for the K, M, C, or Y, drum cleaning motor.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Disconnected harness from the drum cleaning motor • Drum cleaning motor shaft locked, blocked by obstruction • Drum cleaning motor defective
• Remedy: 1. Check or replace the drum cleaning blade. 2. Clear the waste toner stuck in the drum cleaning unit. 3. Check the harness connection of the drum cleaning motor. 4. Remove the obstruction around the drum cleaning motor shaft. 5. Replace the drum cleaning motor.

• Code: 345
• Description: Drum cleaning motor LOCK error: C. The lock signal remained HIGH or LOW for longer than the prescribed time for the K, M, C, or Y, drum cleaning motor.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Disconnected harness from the drum cleaning motor • Drum cleaning motor shaft locked, blocked by obstruction • Drum cleaning motor defective
• Remedy: 1. Check or replace the drum cleaning blade. 2. Clear the waste toner stuck in the drum cleaning unit. 3. Check the harness connection of the drum cleaning motor. 4. Remove the obstruction around the drum cleaning motor shaft. 5. Replace the drum cleaning motor.

• Code: 346
• Description: Drum cleaning motor LOCK error: M. The lock signal remained HIGH or LOW for longer than the prescribed time for the K, M, C, or Y, drum cleaning motor.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Disconnected harness from the drum cleaning motor • Drum cleaning motor shaft locked, blocked by obstruction • Drum cleaning motor defective
• Remedy: 1. Check or replace the drum cleaning blade. 2. Clear the waste toner stuck in the drum cleaning unit. 3. Check the harness connection of the drum cleaning motor. 4. Remove the obstruction around the drum cleaning motor shaft. 5. Replace the drum cleaning motor.

• Code: 347
• Description: Drum cleaning motor LOCK error: Y. The lock signal remained HIGH or LOW for longer than the prescribed time for the K, M, C, or Y, drum cleaning motor.
• Causes: • Drum cleaning blade turned up (flipped) • Waste toner stuck in the drum cleaning unit • Drum filming • Disconnected harness from the drum cleaning motor • Drum cleaning motor shaft locked, blocked by obstruction • Drum cleaning motor defective
• Remedy: 1. Check or replace the drum cleaning blade. 2. Clear the waste toner stuck in the drum cleaning unit. 3. Check the harness connection of the drum cleaning motor. 4. Remove the obstruction around the drum cleaning motor shaft. 5. Replace the drum cleaning motor.

• Code: 348
• Description: Toner pump error: K. The toner end sensor for a color does not detect toner for 120 seconds after the toner pump clutch turned on.
• Causes: • Bad connection of the toner supply tube between the toner bottle and toner pump. • Defective toner pump • Defective toner bottle motor
• Remedy: 1. Check or reinstall the toner supply tube, 2. Replace the toner pump. 3. Replace the toner bottle motor.

• Code: 349
• Description: Toner pump error: C. The toner end sensor for a color does not detect toner for 120 seconds after the toner pump clutch turned on.
• Causes: • Bad connection of the toner supply tube between the toner bottle and toner pump. • Defective toner pump • Defective toner bottle motor
• Remedy: 1. Check or reinstall the toner supply tube, 2. Replace the toner pump. 3. Replace the toner bottle motor.

• Code: 350
• Description: TToner pump error: M. he toner end sensor for a color does not detect toner for 120 seconds after the toner pump clutch turned on.
• Causes: • Bad connection of the toner supply tube between the toner bottle and toner pump. • Defective toner pump • Defective toner bottle motor
• Remedy: 1. Check or reinstall the toner supply tube, 2. Replace the toner pump. 3. Replace the toner bottle motor.

• Code: 351
• Description: Toner pump error: Y. The toner end sensor for a color does not detect toner for 120 seconds after the toner pump clutch turned on.
• Causes: • Bad connection of the toner supply tube between the toner bottle and toner pump. • Defective toner pump • Defective toner bottle motor
• Remedy: 1. Check or reinstall the toner supply tube, 2. Replace the toner pump. 3. Replace the toner bottle motor.