Oce CS120 Reference Manual page 163

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NOTE
•
Depending on the size of the paper, it may disappear from view altogether at some
point while you are rotating the knob. This is not a mistake or a problem. Just
continue rotating the knob.
4
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5
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6
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NOTE
•
For details, see "About the Paper Jam Troubleshooting Screen," on p. 4-2.
Removing Paper Jams