• Code: E021-0102
• Description: Developing sleeve drive motor (Y) error. Lock signal of Developing sleeve drive motor (Y) (M20) cannot be detected for the specified period of time after first detection • Connector disconnected, breaking (shorting) • Failure of the developing assembly (Sleeve overloaded) • Failure of the Drum ITB driver PCB (UN6) • Failure of the developing sleeve motor
• Remedy: 1. Check the connection between the developing sleeve drive motor (Y) (M20) and the Drum ITB driver PCB (UN6). (Connection of the connector, Breaking (shorting)) Motor side: J7535, J8034 PCB side: J1220 2. Replace the developing assembly (Y). 3. Replace the Drum ITB driver PCB (UN6). 4. Replace the developing sleeve drive motor (Y).

• Code: E021-0201
• Description: Developing sleeve drive motor (M) error. The lock signal of the developing sleeve drive motor (M) (M22) cannot be detected within a specified period. • Connector disconnected, breaking (shorting) • Failure of the developing assembly (Sleeve overloaded) • Failure of the Drum ITB driver PCB (UN6) • Failure of the developing sleeve motor
• Remedy: 1. Check the connection between the developing sleeve drive motor (M) (M22) and the Drum ITB driver PCB (UN6). (Connection of the connector, Breaking (shorting)) Motor side: J7536, J8034 PCB side: J1220 2. Replace the developing assembly (M). 3. Replace the Drum ITB driver PCB (UN6). 4. Replace the developing sleeve drive motor (M).

• Code: E021-0202
• Description: Developing sleeve drive motor (M) error. Lock signal of Developing sleeve drive motor (M) (M22) cannot be detected for the specified period of time after first detection • Connector disconnected, breaking (shorting) • Failure of the developing assembly (Sleeve overloaded) • Failure of the Drum ITB driver PCB (UN6) • Failure of the developing sleeve motor
• Remedy: 1. Check the connection between the developing sleeve drive motor (M) (M22) and the Drum ITB driver PCB (UN6). (Connection of the connector, Breaking (shorting)) Motor side: J7536, J8034 PCB side: J1220 2. Replace the developing assembly (M). 3. Replace the Drum ITB driver PCB (UN6). 4. Replace the developing sleeve drive motor (M).

• Code: E021-0301
• Description: Developing sleeve drive motor (C) error. The lock signal of the developing sleeve drive motor (C) (M24) cannot be detected within a specified period. • Connector disconnected, breaking (shorting) • Failure of the developing assembly (Sleeve overloaded) • Failure of the Drum ITB driver PCB (UN6) • Failure of the developing sleeve motor
• Remedy: 1. Check the connection between the developing sleeve drive motor (C) (M24) and the Drum ITB driver PCB (UN6). (Connection of the connector, Breaking (shorting)) Motor side: J7537, J8034 PCB side: J1906 2. Replace the developing assembly (C). 3. Replace the DC controller interface PCB. 4. Replace the developing sleeve drive motor (C).

• Code: E021-0302
• Description: Developing sleeve drive motor (C) error. Lock signal of Developing sleeve drive motor (C) (M24) cannot be detected for the specified period of time after first detection • Connector disconnected, breaking (shorting) • Failure of the developing assembly (Sleeve overloaded) • Failure of the Drum ITB driver PCB (UN6) • Failure of the developing sleeve motor
• Remedy: 1. Check the connection between the developing sleeve drive motor (C) (M24) and the Drum ITB driver PCB (UN6). (Connection of the connector, Breaking (shorting)) Motor side: J7537, J8034 PCB side: J1906 2. Replace the developing assembly (C). 3. Replace the Drum ITB driver PCB (UN6). 4. Replace the developing sleeve drive motor (C).

• Code: E021-0401
• Description: Developing sleeve drive motor (Bk) error. The lock signal of the developing sleeve drive motor (Bk) (M18) cannot be detected within a specified period. • Connector disconnected, breaking (shorting) • Failure of the developing assembly (Sleeve overloaded) • Failure of the Drum ITB driver PCB (UN6) • Failure of the developing sleeve motor
• Remedy: 1. Check the connection between the developing sleeve drive motor (Bk) (M18) and the Drum ITB driver PCB (UN6). (Connection of the connector, Breaking (shorting)) Motor side: J7538, PCB side: J1914 2. Replace the developing assembly (Bk). 3. Replace the Drum ITB driver PCB (UN6). 4. Replace the developing sleeve drive motor (Bk).

• Code: E021-0402
• Description: Developing sleeve drive motor (Bk) error. Lock signal of Developing sleeve drive motor (Bk) (M18) cannot be detected for the specified period of time after first detection • Connector disconnected, breaking (shorting) • Failure of the developing assembly (Sleeve overloaded) • Failure of the Drum ITB driver PCB (UN6). • Failure of the developing sleeve motor
• Remedy: 1. Check the connection between the developing sleeve drive motor (Bk) (M18) and the Drum ITB driver PCB (UN6). (Connection of the connector, Breaking (shorting)) Motor side: J7538, PCB side: J1914 2. Replace the developing assembly (Bk). 3. Replace the Drum ITB driver PCB (UN6). 4. Replace the developing sleeve drive motor (Bk).

• Code: E022-0001
• Description: Drum cleaning / waste toner feed drive motor error. The lock signal of the drum cleaning/waste toner feed drive motor (M30) cannot be detected within a specified period. • Connector disconnected, breaking (shorting) • Failure of the drum cleaning unit (Overload) • Failure of the waste toner feed screw (Overload) • Failure of the Drum ITB driver PCB (UN6). • Failure of the drum cleaning/waste toner feed drive motor
• Remedy: 1. Check the connection between the drum cleaning/ waste toner feed drive motor and the Drum ITB driver PCB (UN6). (Connection of the connector, Breaking (shorting)) Motor side: J7539, PCB side: J1914 2. Clean the screw in the drum cleaning unit (Bk), or replace the unit. Remove toner clog with the feed screw. 3. Clean the waste toner feed pipe unit, or replace the unit. Remove toner clog with the feed screw. 4. Replace the Drum ITB driver PCB (UN6). 5. Replace the drum cleaning/waste toner feed drive motor