Oce 3121 Technical & Service Manual page 292

Forward scanning --> direction
Address S
Address S
Address E
Address E
Principle
I
When reading data for a single scan
from RAM, a start address (address
S) and an end address (address E) are
specified. Then, reading is started at
address S. When address E is
reached, a return is made to address
S. A specific image is repeated by re-
peating these operations.
Address
1 pixel (1 byte)
516 TSM Océ 3121
Repeat
<Document>
< Original >
Main scanning direction
a
<copy>
< Copy >
a a a a
Reading
Slant
<Document> < Original >
Forward scanning --> direction
Main scanning
direction
a b c
<copy>
Principle
I
When reading data for a single scan
from RAM, the start address is shift-
ed for each reading. Thereby slanting
the image.
Address
1 pixel (1 bye)
Functional description
< Copy >
a b c
a b c
Reading
1st line
2nd line
3rd line
4th line