Canon imagerunner advance C5550i User Manual page 738

<Once with 0 (Null) Data>
Data is overwritten once with 0 (null) data.
<Once with Random Data>/<3 Times with Random Data>
Data is overwritten once or three times with random data.
<DoD Standard>
Data is overwritten three times. The first time is with a fixed value, the second is with a complement of
the fixed value, and the third is with random data.
3
Press <Apply Set. Changes>
Managing the Machine
<Yes>.
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