Code :

Code: F1-61
Description: Inserter/EEPROM trouble
Data read failure on turning on the power
Causes: EEPROM trouble Control circuit runaway due to noises
Inserter PWB EEPROM access circuit trouble
Remedy: Case 1 Cause EEPROM trouble Control circuit runaway due to noises Check and remedy Check that the EEPROM is properly installed. Replace the inserter PWB. Case 2 Cause Inserter PWB EEPROM access circuit trouble Check and remedy Replace the inserter PWB.

Code: F1-62
Description: Inserter/reverse sensor trouble
Auto adjustment failure on turning on the power
Causes: Harness disconnection. Inserter PWB trouble.
Remedy: Use SIM 3-2 to check the sensor operation.

Code: F2-00
Description: Toner control sensor open
When the toner sensor output value is detected as smaller than 0.5V or greater than 4.5V for 3 times continuously at every 500ms after completion of the auto development adjustment.
Causes: Connector harness trouble Connector not connected.
Remedy: Check connection of the toner control sensor. Check connection of the connector harness to the main PWB. Check for disconnection of the harness.

Code: F2-02
Description: Toner supply abnormality
Toner remains in the toner bottle when undertoner is detected by the toner concentration sensor in the developing unit.
Causes: Toner concentration sensor trouble. Toner remaining quantity sensor trouble. Connector harness trouble for the above sensors.
Remedy: Check connector of hopper unit toner motor (TM1) Check connector of toner bottle toner motor (TM2) Check connection of the connector harnesses to the main PWB. Check broken harness for above connections. Check output of the toner concentration sensor (SIM25-1). Check output of the toner remaining quantity sensor (SIM10-2).

Code: F2-04
Description: Improper cartridge (Life cycle error, etc.)
An improper toner bottle is inserted. CRUM (IC chip trouble)
Causes: IC chip trouble Improper cartridge
Remedy: Insert a proper cartridge.

Code: F2-05
Description: CRUM error
Communication with the IC chip cannot be made. Data write failure to the CRUM or data read failure from the CRUM occurs 3 times continuously except for toner cartridge installation detection.
Causes: IC chip trouble Improper cartridge
Remedy: Insert a proper cartridge.

Code: F2-31
Description: Process control trouble (Photoconductor surface reflection rate abnormality)
Before starting process control, the drum surface is read by the image density sensor to make the sensor gain adjustment so that the output is fixed to a certain level. Though the sensor gain is changed, the output is not fixed to a certain level.
Causes: Image density sensor trouble
Remedy: Use SIM 44-02 to perform the process control sensor gain adjustment.