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
Code: 123
Description: ID sensor pattern error (K) The slope gM of the line representing the relationship between the DTM bias and attached toner amount is not between –0.01 and – 0.001.
Causes: Incorrect DTM installation, incorrect PCU installation, development bias error, MCU, LD control malfunction, loss of synchronization
Code: 20
Description: Optional tray unit error The detection signal for the 500 sheet paper tray unit is abnormal.
Causes: The optional tray unit connector has a bad connection.
Code: 21
Description: Pressure roller thermistor error The roller temperature has been at 0°C for five seconds.
Causes: Pressure roller thermistor, MCU
Code: 22
Description: High pressure roller temperature The roller temperature has been at 190°C or higher for three seconds.