• Code: 2111
• Description: Black developer drive motor starting error
  • No FG (Frequency generation) pulse is entered when ASIC (U7) on the engine controller PWB (KP-801) has issued a motor activation signal to the black developer drive motor.
• Causes: Defective engine controller PWB (KP-801). Defective black developer drive motor. Excessive torque for driving black developer. (Overloaded by a damaged gear.) Defective harness (S02570) between engine controller PWB (KP-801) and main drive motor, or poor contact of the connector terminals.
• Remedy: Defective engine controller PWB (KP-801). Replace the engine controller PWB (KP- 801).
  Defective black developer drive motor. Replace the black developer drive motor.
  Excessive torque for driving black developer. (Overloaded by a damaged gear.) Check if the black developer rotates smoothly. Check for broken gears. Replace if any.
  Defective harness (S02570) between engine controller PWB (KP-801) and main drive motor, or poor contact of the connector terminals. Check the continuity of the harness (S02570). Check the insertion of connectors.

• Code: 2112
• Description: Color developers drive motor starting error
  • No FG (Frequency generation) pulse is entered when ASIC (U7) on the engine controller PWB (KP-801) has issued a motor activation signal to the drive motor for the color developers.
• Causes: Defective engine controller PWB (KP-801). Defective color developers drive motor. Excessive torque for driving color developers. (Overloaded by a damaged gear.) Defective harness (S02609) between engine controller PWB (KP-801) and color developers drive motor, or poor contact of the connector terminals.
• Remedy: Defective engine controller PWB (KP-801). Replace the engine controller PWB (KP- 801).
  Defective color developers drive motor. Replace the color developers drive motor.
  Excessive torque for driving color developers. (Overloaded by a damaged gear.) Check if the yellow, magenta, and cyan developers rotate smoothly. Check for broken gears. Replace if any.
  Defective harness (S02609) between engine controller PWB (KP-801) and color developers drive motor, or poor contact of the connector terminals. Check the continuity of the harness (S02609). Check the insertion of connectors.

• Code: 2121
• Description: Black developer drive motor starting time-out
  • The FG (Frequency generation) pulse does not reach the correct frequency when ASIC (U7) on the engine controller PWB (KP-801) has issued a motor activation signal to the black developer drive motor.dev
• Causes: Defective engine controller PWB (KP-801). Defective black developer drive motor. Excessive torque for driving black developer. (Overloaded by a damaged gear.) Defective harness (S02570) between engine controller PWB (KP-801) and black developer, or poor contact of the connector terminals.
• Remedy: Defective engine controller PWB (KP-801). Replace the engine controller PWB (KP- 801).
  Defective black developer drive motor. Replace the black developer drive motor.
  Excessive torque for driving black developer. (Overloaded by a damaged gear.) Check if the black developer rotates smoothly. Check for broken gears. Replace if any.
  Defective harness (S02570) between engine controller PWB (KP-801) and black developer, or poor contact of the connector terminals. Check the continuity of the harness (S02570). Check the insertion of connectors.

• Code: 2122
• Description: Color developers drive motor starting time-out
  • The FG (Frequency generation) pulse does not reach the correct frequency when ASIC (U8) on the engine controller PWB (KP-801) has issued a motor activation signal to the drive motor that drives the color developers.
• Causes: Defective engine controller PWB (KP-801). Defective color developers drive motor. Excessive torque for driving color developers. (Overloaded by a damaged gear.) Defective harness (S02609) between engine controller PWB (KP-801) and color developers, or poor contact of the connector terminals.
• Remedy: Defective engine controller PWB (KP-801). Replace the engine controller PWB (KP- 801).
  Defective color developers drive motor. Replace the color developers drive motor.
  Excessive torque for driving color developers. (Overloaded by a damaged gear.) Check if the yellow, magenta, and cyan developers rotate smoothly. Check for broken gears. Replace if any.
  Defective harness (S02609) between engine controller PWB (KP-801) and color developers, or poor contact of the connector terminals. Check the continuity of the harness (S02609). Check the insertion of connectors.

• Code: 2320
• Description: Fuser drive motor error
  • The fuser control system does not operate normally.
• Causes: Defective engine controller PWB (KP-801).
• Remedy: Replace the engine controller PWB (KP- 801).

• Code: 2340
• Description: Fuser drive motor driving clock table error
  • An error has occurred in the driving clock table on the engine controller PWB (KP-801) that controls the fuser drive motor (a stepping motor).
• Causes: Defective engine controller PWB (KP-801).
• Remedy: Replace the engine controller PWB (KP- 801).

• Code: 2500
• Description: Paper feed motor lock
  • The FG (Frequency generation) pulse which the paper feed motor generates is not entered at the correct frequency in ASIC (U8) on the engine controller PWB (KP-801) during normal operation.n
• Causes: Defective engine controller PWB (KP-801). Defective paper feed motor. Excessive torque for driving paper feed unit. (Overloaded by a damaged gear.) Defective harness (S02564) between engine controller PWB (KP-801) and paper feed motor, or poor contact of the connector terminals.
• Remedy: Defective engine controller PWB (KP-801). Replace the engine controller PWB (KP- 801).
  Defective paper feed motor. Replace the paper feed motor.
  Excessive torque for driving paper feed unit. (Overloaded by a damaged gear.) Check if the paper feed unit rotates smoothly. Check for broken gears. Replace if any.
  Defective harness (S02564) between engine controller PWB (KP-801) and paper feed motor, or poor contact of the connector terminals. Check the continuity of the harness (S02564). Check the insertion of connectors.

• Code: 2510
• Description: Paper feed motor starting error
  • No FG (Frequency generation) pulse is entered within the predetermined period when ASIC (U8) on the engine controller PWB (KP-801) has issued a motor activation signal to the paper feed motor.
• Causes: Defective engine controller PWB (KP-801). Defective paper feed motor. Excessive torque for driving paper feed unit. (Overloaded by a damaged gear.) Defective harness (S02564) between engine controller PWB (KP-801) and paper feed motor, or poor contact of the connector terminals.
• Remedy: Defective engine controller PWB (KP-801). Replace the engine controller PWB (KP- 801).
  Defective paper feed motor. Replace the paper feed motor.
  Excessive torque for driving paper feed unit. (Overloaded by a damaged gear.) Check if the paper feed unit rotates smoothly. Check for broken gears. Replace if any.
  Defective harness (S02564) between engine controller PWB (KP-801) and paper feed motor, or poor contact of the connector terminals. Check the continuity of the harness (S02564). Check the insertion of connectors.