• Code: F2 82
• Description: Half-tone process control 1st batch trouble (Magenta)
• Causes: First step operation error during half-tone process control
• Remedy: Common Check Use SIM 44-2 to adjust the process control sensor gain. Case 1 Cause When "Error" occurs in the gain adjustment of SIM 44- 2: 1. Disconnection of the harness between the PCU PWB and the image density sensor. 2. Image density sensor dirt/trouble Check & Remedy 1. Check connection of the harness between the PCU PWB and the image density sensor. 2. Clean/replace the image density sensor. Case 2 Cause When SIM 44-2 gain adjustment is completed: Insufficient cleaning of the transfer belt, calibration plate solenoid operation trouble Check & Remedy Check the drum surface and the belt surface.

• Code: F2 83
• Description: Half-tone process control 1st batch trouble (Yellow)
• Causes: First step operation error during half-tone process control
• Remedy: Common Check Use SIM 44-2 to adjust the process control sensor gain. Case 1 Cause When "Error" occurs in the gain adjustment of SIM 44- 2: 1. Disconnection of the harness between the PCU PWB and the image density sensor. 2. Image density sensor dirt/trouble Check & Remedy 1. Check connection of the harness between the PCU PWB and the image density sensor. 2. Clean/replace the image density sensor. Case 2 Cause When SIM 44-2 gain adjustment is completed: Insufficient cleaning of the transfer belt, calibration plate solenoid operation trouble Check & Remedy Check the drum surface and the belt surface.

• Code: F2 84
• Description: Half-tone process control 2nd batch trouble (Black)
• Causes: Second step operation error during half-tone process control
• Remedy: Common Check Use SIM 44-2 to adjust the process control sensor gain. Case 1 Cause When "Error" occurs in the gain adjustment of SIM 44- 2: 1. Disconnection of the harness between the PCU PWB and the image density sensor. 2. Image density sensor dirt/trouble Check & Remedy 1. Check connection of the harness between the PCU PWB and the image density sensor. 2. Clean/replace the image density sensor. Case 2 Cause When SIM 44-2 gain adjustment is completed: Insufficient cleaning of the transfer belt, calibration plate solenoid operation trouble Check & Remedy Check the drum surface and the belt surface.

• Code: F2 85
• Description: Half-tone process control 2nd batch trouble (Cyan)
• Causes: Second step operation error during half-tone process control
• Remedy: Common Check Use SIM 44-2 to adjust the process control sensor gain. Case 1 Cause When "Error" occurs in the gain adjustment of SIM 44- 2: 1. Disconnection of the harness between the PCU PWB and the image density sensor. 2. Image density sensor dirt/trouble Check & Remedy 1. Check connection of the harness between the PCU PWB and the image density sensor. 2. Clean/replace the image density sensor. Case 2 Cause When SIM 44-2 gain adjustment is completed: Insufficient cleaning of the transfer belt, calibration plate solenoid operation trouble Check & Remedy Check the drum surface and the belt surface.

• Code: F2 86
• Description: Half-tone process control 2nd batch trouble (Magenta)
• Causes: Second step operation error during half-tone process control
• Remedy: Common Check Use SIM 44-2 to adjust the process control sensor gain. Case 1 Cause When "Error" occurs in the gain adjustment of SIM 44- 2: 1. Disconnection of the harness between the PCU PWB and the image density sensor. 2. Image density sensor dirt/trouble Check & Remedy 1. Check connection of the harness between the PCU PWB and the image density sensor. 2. Clean/replace the image density sensor. Case 2 Cause When SIM 44-2 gain adjustment is completed: Insufficient cleaning of the transfer belt, calibration plate solenoid operation trouble Check & Remedy Check the drum surface and the belt surface.

• Code: F2 87
• Description: Half-tone process control 2nd batch trouble (Yellow)
• Causes: Second step operation error during half-tone process control
• Remedy: Common Check Use SIM 44-2 to adjust the process control sensor gain. Case 1 Cause When "Error" occurs in the gain adjustment of SIM 44- 2: 1. Disconnection of the harness between the PCU PWB and the image density sensor. 2. Image density sensor dirt/trouble Check & Remedy 1. Check connection of the harness between the PCU PWB and the image density sensor. 2. Clean/replace the image density sensor. Case 2 Cause When SIM 44-2 gain adjustment is completed: Insufficient cleaning of the transfer belt, calibration plate solenoid operation trouble Check & Remedy Check the drum surface and the belt surface.

• Code: F2 90
• Description: Half-tone process limit error
• Causes: The difference between the correction value after execution of half-tone process control and the previous correction value exceeds the specified max. value of each color. <The error is recorded in the trouble history, but F2 trouble is not indicated on the display and the previous correction value is remained.>
• Remedy: Common Check Use SIM 44-2 to adjust the process control sensor gain. Case 1 Cause When "Error" occurs in the gain adjustment of SIM 44- 2: 1. Disconnection of the harness between the PCU PWB and the image density sensor. 2. Image density sensor dirt/trouble Check & Remedy 1. Check connection of the harness between the PCU PWB and the image density sensor. 2. Clean/replace the image density sensor. Case 2 Cause When SIM 44-2 gain adjustment is completed: Insufficient cleaning of the transfer belt, calibration plate solenoid operation trouble Check & Remedy Check the drum surface and the belt surface.

• Code: F3 12
• Description: Cassette 1 lift-up trouble
• Causes: LUD1 does not turn on within the specified time.
• Remedy: Case 1 Cause LUD1 sensor trouble, disconnection of harness among the PCU PWB, the lift-up unit, and the paper feed unit. Check & Remedy Check LUD1, its harness, and the connector. Case 2 Cause Cassette 1 lift-up motor trouble Check & Remedy Check the lift-up unit.