Description: <D0B4> D Scanner Home Position Error 1 The scanner home position sensor (S42) does not go OFF. Details: Error detection timing • During homing (when the machine is turned ON or when it returns from energy saving mode) • During an automatic adjustment (when the machine is turned ON or when it returns from energy saving mode) • During a scan from the ADF or exposure glass. • At original size detection operation
Causes: • Connector defective (disconnected, loose) • Scanner motor driver (MPU) defective • Scanner motor defective • Scanner home position sensor defective • Harness defective • Timing belt, pulley, wire, or carriage not installed correctly
Remedy: Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. 1. Reconnect the all connectors. 2. Check the timing belt, pulley, wire, or carriage installation. 3. Replace the following parts: • Replace the HP sensor. • Replace the MPU. • Replace the scanner motor. • Replace the harness.
Code: 121-00
Description: <D0B2,D0B3> D Scanner home position error 2 • The scanner home position sensor does not go ON even if the scanner moves 480 mm (from the sensor off area) or 30 mm (from the sensor on position) at homing. • The scanner home position sensor goes OFF on starting the DF scanning/Book scanning. • The scanner home position sensor does not go ON when the scanner reaches the specified position (in the sensor ON area) from the scanning position • This SC is issued only when the error signal of the scanner HP sensor (S1) is detected three times consecutively to prevent the sensor detection error due to some noise.
Causes: • Motor driver defective • Motor defective • Scanner HP sensor (S1) defective • Harness defective • Timing belt, pulley, wire, or carriage not installed correctly
Remedy: 1. Perform the following operations. • Check the harness. • Check the timing belt, pulley, wire, or carriage installation. 2. Replace the following parts • Replace the scanner motor (M1). • Replace the scanner HP sensor (S1).
Code: 121-00
Description: <D0B4> D Scanner Home Position Error 2 The scanner home position sensor (S42) does not go ON. Details: Error detection timing • During homing (when the machine is turned ON or when it returns from energy saving mode) • During an automatic adjustment (when the machine is turned ON or when it returns from energy saving mode) • During a scan from the ADF or exposure glass. • At original size detection operation
Causes: • Connector defective (disconnected, loose) • Scanner motor driver (MPU) defective • Scanner motor defective • Scanner home position sensor defective • Harness defective • Timing belt, pulley, wire, or carriage not installed correctly
Remedy: Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. 1. Reconnect the all connectors. 2. Check the timing belt, pulley, wire, or carriage installation. 3. Replace the following parts: • Replace the HP sensor. • Replace the MPU. • Replace the scanner motor. • Replace the harness.
Code: 141-00
Description: <D0B2,D0B3> D Black level detection error The black level cannot be adjusted within the specified value.
Remedy: 1. Reconnect the harness of the CIS unit (PCB4). 2. Replace the following parts. • Replace the CIS unit (PCB4) • Replace the MPU (PCB7). • Replace the harness of the CIS unit (PCB4).
Code: 141-00
Description: <D0B4> D Black level detection error The black level cannot be reached the target during auto gain control.
Remedy: Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step. 1. Reconnect the following connectors: • Scanner Carriage - MPU harness (FFC) 2. Replace the Scanner Carriage. 3. Replace the MPU. 4. Replace the following harnesses: • Scanner Carriage - MPU harness (FFC)
Code: 142-00
Description: <D0B2,D0B3> D White level detection error The white level cannot be adjusted within the specified value.
Causes: • CIS unit (PCB4) defective • MPU (PCB7) defective • Harness defective • Condensation in the scanner unit • CIS unit (PCB4) dirty or positioned incorrectly • White plate dirty or positioned incorrectly
Remedy: 1. Perform the following operations. • Reconnect the harness of the CIS unit (PCB4). • Reattach or clean the CIS unit (PCB4). • Reattach or clean the white plate. 2. Replace the following parts. • Replace the CIS unit (PCB4) • Replace the MPU (PCB7). • Replace the harness of the CIS unit (PCB4).