Riso MZ790U Instruction Manual page 36

Basic Operations
Process Operation Flow
For 2-Color printing with 2 originals For 2-Color printing by separating the colors
separated by color: of a single original
(when using Easy 2Color)
Master-Making Proof Copy (1)
A one color proof copy is printed using only Cylinder (Drum) 1.
Place the original for Cylinder (Drum) 2.
Scan the Original.
Makes a master on Cylinder (Drum) 2.
A master for Cylinder (Drum) 2 is made and wrapped around Cylinder (Drum) 2.
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Basic Process