Oce 3121 Technical & Service Manual page 536

c) Adjusting the side registration (in service mode)
If there is a discrepancy in the position of the image on the second side of a
copy, the side registration can be adjusted. To do this, enter service mode ( ' *
3 * ' ), ' ADJUST ', ' RSID-SNSHP ' : 4th screen.
The adjustment changes the position of the laser exposure. It does not change
the mechanical position of the sensor PS14.
If the image is displaced to the rear, decrease the value.
I
Image area
Image area
Paper
If the image is displaced to the front, increase the value.
I
Image area
Image area
Paper
512 TSM Océ 3121
Specific distance
Specific distance
Edge
Copy paper
Edge
Virtual home position
Virtual home position
Specific distance
Specific distance
Edge
Copy paper Edge
Value decreased
Value increased
H.P
Value decreased
Value decreased
H.P
Virtual home position
Virtual home position
Functional description