Description: DF Scanning Position Error 1 The DF scanning position sensor does not detect the scanner leaving the home position (sensor does not go OFF).
Causes: • MPU is defective. • Power/signal harness is defective. • Scanner unit condensation • CIS is not set properly, or is dirty. • The white plate is not set properly, or is dirty.
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. Check if there is any foreign object on surface of the scanner HP sensor, or the DF position scanning sensor. 2. Reconnect the harnesses of the scanner HP sensor, or the DF position scanning sensor. 3. Replace the scanner HP sensor, or the DF position scanning sensor. Since it cannot be determined which one is defective from the SC, execute the Input check (SP 5-803-202 DF position scanning sensor) to check the state of the sensor.
Code: SC123-00
Description: DF Scanning Position Error 2 The DF scanning position sensor does not detect the scanner leaving the home position (sensor does not go OFF).
Causes: • MPU is defective. • Power/signal harness is defective. • Scanner unit condensation • CIS is not set properly, or is dirty. • The white plate is not set properly, or is dirty.
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. Check if there is any foreign object on surface of the scanner HP sensor, or the DF position scanning sensor. 2. Reconnect the harnesses of the scanner HP sensor, or the DF position scanning sensor. 3. Replace the scanner HP sensor, or the DF position scanning sensor. Since it cannot be determined which one is defective from the SC, execute the Input check (SP 5-803-202 DF position scanning sensor) to check the state of the sensor.
Code: SC141-00
Description: Black Level Correction Error: Front Side The automatic adjustment has failed to correct the black level to the permissible range.
Causes: • CIS is defective. • MPU is defective. • Power/signal harness is defective.
Remedy: 1. Clean/reset the connector. 2. Replace the units in the following order: • CIS • Engine board • PSU/Signal harness
Code: SC142-00
Description: White Level Correction Error: Front Side The automatic adjustment has failed to correct the white level to the permissible range.
Causes: • CIS is defective. • MPU is defective. • Power/signal harness is defective. • Scanner unit condensation • CIS is not set properly, or is dirty. • The white plate is not set properly, or is dirty.
Remedy: 1. Clean/reset the CIS and white plate. 2. Replace the units in the following order: • CIS • Engine board • PSU/Signal harness
Code: SC144-00
Description: Scanner Communication Error: Front Side Cannot correctly establish communication with the MPU(SoC-AFE)
Causes: • Communication error with MPU (SoC-AFE) • PSU is defective.
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. Clean/reset the connector. 2. Replace the units in the following order: • Engine board • PSU/Signal harness
Code: SC151-00
Description: Black Level Correction Error: Rear Side The automatic adjustment has failed to correct the black level (rear side) to the permissible range
Causes: • CIS is defective. • MPU is defective. • Power/signal harness is defective.
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. Clean/reset the connector. 2. Replace the units in the following order: • CIS • Engine board • PSU/Signal harness