Ricoh B089 Service Manual page 846

1. A copy job writes data to the HDD as far as cluster 32 [A].
2. When the copy job is finished, the data overwrite starts at cluster 32 [B] can
continues to overwrite each cluster twice with random data and once with a "0".
B692/B694
HDD Data
[A]
[B]
18
Original Data
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
17 18 19 20
21 22 23 24
25 26 27 28
29 30 31 32
B692D903A.WMF
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
17 18 19 20
21 22 23 24
25 26 27 28
29 30 31 32
B692D904A.WMF
SM