APPENDIX B
B.1 Test mode for maintenance
CAUTION: Please follow the procedure here or the offset data may be changed incor- rectly. If the scanner does not react as the procedure below, turn off the scanner and start from the beginning.
(1)Activating a test mode
Make sure the scanner is off. Open the ADF cover completely and gently pull the ADF’s empty sensor so that it is activated and push the B5 sensor so that it is also activated. The other sensors will be in the correct state as long as the cover is completely open. Turn the scanner on. When the POWER lamp begins to blink, release the sensors and close the ADF cover. Now please observe the following sequence.
1.POWER lamp turns on
2.POWER and READ lamp flash together
3.POWER and READ lamp turn on momentarily to indicate the read write test to memory has passed.
If the CHECK lamp turns on, the memory test did not complete successfully. This memory test is always executed after the test mode is activated and the ADF is closed for the first time.
B5 Size sensor
Empty sensor
DOWN
UP
ADF open
B – 1
