1. remove documents from the stacker. pull up on the lever on the right front of the upper transport and then raise it.
raise the upper transport unit fully, then lower the transport to engage lock before you put your hands inside of the scanner.
2. pull the adf release lever toward you and lift up the adf sheet guide.
3. hold the adf sheet guide with your hand to keep it open.
4. wipe the six sensor surfaces with a clean lint free cloth moistened with cleaner f1.
5. lower the adf upper sheet guide gently.
6. lift the upper transport unit fully to release the safety lock and then lower the transport unit carefully.
二、cleaning sf0 sensor and sf1 sensor.
1. remove documents from the stacker. pull up on the lever on the right front of the upper transport and then raise it.
raise the upper transport unit fully, then lower the transport to engage lock before you put your hands inside of the scanner.
2. pull the adf release lever toward you and lift up the adf sheet guide.
3. hold the adf sheet guide with your hand to keep it open.
4. wipe sf0 and sf1 sensor surfaces with a clean lint free cloth moistened with cleaner f1.
5. lower the adf upper sheet guide gently.
6. lift the upper transport unit fully to release the safety lock and then lower the transport unit carefully.
三、cleaning of sf1.5 sensor and sf2 sensor
1. remove documents from the stacker. pull up on the lever on the right front of the upper transport and then raise it.
raise the upper transport unit fully, then lower the transport to engage lock before you put your hands inside of the scanner.
2. wipe sf1.5 and sf2 sensor surfaces with a clean lint free cloth moistened with cleaner f1.
3. lift the upper transport unit fully to release the safety lock and then lower the transport unit carefully.