• Code: 103
• Description: K ID sensor error While the LED is off, the ID sensor output does not meet the standard voltage (between 0.05 V and 1.5 V).
• Causes: When the output meets the standard voltage: MCU, harness When the output does not meet the standard: K ID sensor

• Code: 104
• Description: ID sensor output error (rough adjustment) The difference in ID sensor outputs when the transfer belt is read and when the LED is off does not meet the standard voltage (Vbkcal±0.4 V).
• Causes: K ID sensor, MCU, transfer belt error, transfer belt surface unevenness, incorrect ID sensor installation

• Code: 105
• Description: ID sensor output error (fine adjustment) The difference in ID sensor outputs when the transfer belt is read and when the LED is off does not meet the standard voltage (Vbkcal±0.1 V).
• Causes: K ID sensor, MCU, transfer belt error, transfer belt surface unevenness

• Code: 110
• Description: ID sensor pattern error (Cyan) The slope gM of the line representing the relationship between the C development bias and attached toner amount is not between –0.01 and – 0.0005.
• Causes: Incorrect color DTM installation, incorrect PCU installation, development bias error, MCU, LD control malfunction, loss of synchronization

• Code: 111
• Description: ID sensor pattern error (Magenta) The slope gM of the line representing the relationship between the M development bias and attached toner amount is not between –0.01 and – 0.0005.
• Causes: Incorrect color DTM installation, incorrect PCU installation, development bias error, MCU, LD control malfunction, loss of synchronization

• Code: 112
• Description: ID sensor pattern error (Yellow) The slope gM of the line representing the relationship between the Y development bias and attached toner amount is not between –0.01 and – 0.0005.
• Causes: Incorrect color DTM installation, incorrect PCU installation, development bias error, MCU, LD control malfunction, loss of synchronization

• Code: 116
• Description: ID sensor pattern error (k) The slope gM of the line representing the relationship between the K development bias and attached toner amount is not between –0.01 and – 0.001.
• Causes: Incorrect K DTM installation, incorrect PCU installation, development bias error, MCU, LD control malfunction, loss of synchronization

• Code: 118
• Description: ID sensor pattern read error (K) The difference in ID sensor outputs when the ID sensor pattern is read and when the background surface of the transfer belt is read is 0.8 V or less.
• Causes: Incorrect DTM installation, incorrect PCU installation, development bias error, MCU, LD control malfunction, loss of synchronization