Sharp MX-M550U Service Manual page 371

r. Thermostat (upper main)
s. Thermostat (upper sub)
1) Remove the fusing unit. (See "(1) Fusing unit")
2) Remove the web unit. (See "b. Web motor")
3) Remove the lamp fixing screws on R side.
4) Disconnect the connector on drawer side.
5) Remove the screws and the washers, and remove the upper
main thermostat (A) and the upper sub thermostat (B).
B
t. Thermostat (lower)
u. Thermistor (lower)
1) Remove the fusing unit. (See "(1) Fusing unit")
2) Lay the unit on its side to prevent paper dust from dispersing,
and remove the lower cover.
A
MX-M700N FUSING SECTION N – 10
3) Remove the thermistor (lower).
[Cleaning]
When there is paper dust or foreign material on the heat sensi-
tive surface of the thermostat, clean and remove dust or for-
eign material.
[Caution when attaching]
Be careful not to mistake the install position of the washer.
4) Disconnect the connector. Remove the screws, and the ther-
mistor (lower).
Marks
B
A
* If the picture quality may be degraded damaged by the roller
damage, change the installing position to (B).
v. Cleaning sheet table
1) Remove the fusing unit. (See "(1) Fusing unit")
2) Remove the lower cover. (See "t. Thermostat (lower)")
3) Remove the holder plate.
* When there are paper dusts or foreign materials at the port
area (A), clean and remove.
(A)