Oce 3121 Technical & Service Manual page 295

a) Negative/Positive Reversal
Level conversion is executed so that the white area of a document will be black
and the black area will be white on copies.
Output level
Input level
b) Framing/Blanking
For framing/blanking, areas may be as many as 4 areas; for a rectangle, as
many as 10 points may be specified.
Framing
I
The signals representing non-specified areas are forced to represent white.
Area
Blanking
I
As opposed to framing, the signals representing the specified area are forced
to represent white.
Area
c) Pasting
This function may be used when the Retention Memory Unit (option) is in-
stalled. Images stored in the retention memory in advance and the image on the
platen are synthesised for output.
ed.1
(Document)
08 Image processing 519
(Copy)