• Code: 361-03
• Description: TD sensor (Vt high) error 1: M
  The Vt value of the black, magenta, cyan, or yellow TD sensor exceeds the specified value (default: 4.7V) with SP3-020-002 for twenty counts. The [Vt - Vtref] value of the black, cyan, magenta, or yellow TD sensor exceeds the specified value (default: 5.0V) with SP3-020-001.
• Causes: A TD sensor-related part is faulty. A TD sensor-related part's connection is loose. Toner density error.
• Remedy: • Turn the main power switch off and then back on. • Replace the AIT (development unit).

• Code: 361-04
• Description: TD sensor (Vt high) error 1: Y
  The Vt value of the black, magenta, cyan, or yellow TD sensor exceeds the specified value (default: 4.7V) with SP3-020-002 for twenty counts. The [Vt - Vtref] value of the black, cyan, magenta, or yellow TD sensor exceeds the specified value (default: 5.0V) with SP3-020-001.
• Causes: A TD sensor-related part is faulty. A TD sensor-related part's connection is loose. Toner density error.
• Remedy: • Turn the main power switch off and then back on. • Replace the AIT (development unit).

• Code: 362-01
• Description: TD sensor (Vt low) error 2: K
  The Vt value of the black, magenta, cyan, or yellow TD sensor is below the specified value with SP3-020-004 (default: 0.5V) for 10 counts.
• Causes: A TD sensor's connection is loose. Toner density error.
• Remedy: • Turn the main power switch off and then back on. • Replace the AIT (development unit).

• Code: 362-02
• Description: TD sensor (Vt low) error 2: C
  The Vt value of the black, magenta, cyan, or yellow TD sensor is below the specified value with SP3-020-004 (default: 0.5V) for 10 counts.
• Causes: A TD sensor's connection is loose. Toner density error.
• Remedy: • Turn the main power switch off and then back on. • Replace the AIT (development unit).

• Code: 362-03
• Description: TD sensor (Vt low) error 2: M
  The Vt value of the black, magenta, cyan, or yellow TD sensor is below the specified value with SP3-020-004 (default: 0.5V) for 10 counts.
• Causes: A TD sensor's connection is loose. Toner density error.
• Remedy: • Turn the main power switch off and then back on. • Replace the AIT (development unit).

• Code: 362-04
• Description: TD sensor (Vt low) error 2: Y
  The Vt value of the black, magenta, cyan, or yellow TD sensor is below the specified value with SP3-020-004 (default: 0.5V) for 10 counts.
• Causes: A TD sensor's connection is loose. Toner density error.
• Remedy: • Turn the main power switch off and then back on. • Replace the AIT (development unit).

• Code: 370
• Description: ID sensor adjustment error
  When the Vsg error counter reaches "3", the machine detects "SC370". The Vsg error counter counts "1" when the Vsg detected by ID sensor is more than the value (default: 4.5V) specified with SP3-324-005 or less than the value (default: 3.5V) specified with SP3-324-006.
• Causes: The ID/TD sensor-related part is faulty. The ID/TD sensor-related part's connection is loose. The ID/TD sensor's optical path is dirty. ID/TD sensor detection surface dirty.
• Remedy: • Check the connection. • Clean the sensor parts. • Replace/repair the image transfer unit.

• Code: 390-01
• Description: Drum gear position sensor error: K
  The machine does not detect the drum position signal for 3 seconds at the drum phase adjustment.
• Causes: Dirty sensor. Defective sensor. The connection is faulty. Broken harness. Clean/replace the sensor.
• Remedy: • Clean/replace the sensor. • Reconnect the connector. • Check the harness and other parts to solve the problem, and then turn the power on.