Minolta Di551 Service Manual page 245

FIXING UNIT
f) Set the distance "a" between the fixing tem-
perature sensor 1 and fixing upper roller so
that it is equal to the thickness of the position-
ing jig.
Fixing temperature sensor 1
a
Standard value of a : 0.75 ± 0.05 mm
(4) Apply screw lock agent to the two screws secur-
ing fixing temperature sensor 1.
(5) Secure the wires of fixing temperature sensors 1
and 2 in the wire guides and connect their con-
nectors.
(6) Reverse the removal procedure to reinstall other
parts.
Fixing upper roller
1-O-10