Code :

Code: F2-65
Description: Toner supply abnormality (C)
Causes: Toner end with the remaining quantity of 75% or more. The toner supply time exceeds 3 times as much as the specified time.
Remedy: Case 1 Cause Toner motor section connector harness trouble Check and remedy Check the connector connection of the toner motor section. Check the connector harness (TM) connection to the main PWB. Case 2 Cause Toner motor and toner density sensor trouble Check and remedy 1) Check the toner density sensor output. (SIM25-1) 2) Check that the toner transport pipe is not clogged between the toner cartridge and the developing unit. Replace the toner cartridge (CRUM) if necessary. 3) If replacement of the toner cartridge (CRUM) does not clear the trouble, check the developing unit.

Code: F2-66
Description: Toner supply abnormality (M)
Causes: Toner end with the remaining quantity of 75% or more. The toner supply time exceeds 3 times as much as the specified time.
Remedy: Case 1 Cause Toner motor section connector harness trouble Check and remedy Check the connector connection of the toner motor section. Check the connector harness (TM) connection to the main PWB. Case 2 Cause Toner motor and toner density sensor trouble Check and remedy 1) Check the toner density sensor output. (SIM25-1) 2) Check that the toner transport pipe is not clogged between the toner cartridge and the developing unit. Replace the toner cartridge (CRUM) if necessary. 3) If replacement of the toner cartridge (CRUM) does not clear the trouble, check the developing unit.

Code: F2-67
Description: Toner supply abnormality (Y)
Causes: Toner end with the remaining quantity of 75% or more. The toner supply time exceeds 3 times as much as the specified time.
Remedy: Case 1 Cause Toner motor section connector harness trouble Check and remedy Check the connector connection of the toner motor section. Check the connector harness (TM) connection to the main PWB. Case 2 Cause Toner motor and toner density sensor trouble Check and remedy 1) Check the toner density sensor output. (SIM25-1) 2) Check that the toner transport pipe is not clogged between the toner cartridge and the developing unit. Replace the toner cartridge (CRUM) if necessary. 3) If replacement of the toner cartridge (CRUM) does not clear the trouble, check the developing unit.

Code: F2-74
Description: Toner cartridge CRUM error (K)
Causes: CRUM cannot be read or written.
Remedy: Case 1 Cause Connection trouble or disconnection of the connector and the harness between the PCU and the toner cartridge. Check and remedy Check the connector and the harness between the PCU and the toner cartridge. Case 2 Cause CRUM trouble Check and remedy Replace the toner cartridge. Case 3 Cause Control (PCU) PWB trouble Check and remedy Replace the PCU PWB.