Oce VarioPrint i Series - Page 306

Spot color Description
'All'
A mapping to this (exactly spelled) spot color name prints all primary col-
ors instead of the source color. This results in a rich black .
'None' A mapping of this (exactly spelled) spot color name makes objects invisi-
ble on the print. This can be useful to make markers invisible.
Define color mapping
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Chapter 11 - Manage color definitions