Remedy: Check connection of the toner control sensor. Check connection of connector and harness to the main PWB. Check for disconnection of harness.
Code: F2 02
Description: Toner supply abnormality. Toner control sensor output value becomes under-toner too earlier.
Causes: Connector harness trouble Toner control sensor trouble The toner cartridge seal is not removed
Remedy: Check connection of the connector in the toner motor section. Check connection of connector and harness to the main PWB. Check for disconnection of harness. Toner control sensor output check DIAG (SIM25-1) Remove the toner cartridge seal.
Code: F2 04
Description: Improper cartridge (life cycle error, etc.). An improper process cartridge is inserted.