Sharp FO 4400 - B/W Laser - All-in-One Service Manual page 77

20
Fusing unit (1/2)
Bushing
(a)
(c)
Fusing
Entrance
Guide
Fig. 20
Backup Roller
(b)
1. Remove the Fusing unit. (3 screws, 3 connectors)
NOTE:
•
The Fusing Unit is to be replaced as a unit at about every
50,000 printed pages.
*: Use the following procedure when a part comprising the Fusing Unit
is to be replaced individually to correct an image problem or the
defective part.
2. Remove the sensor fixing bracket and the Paper Exit Sensor (PS3).
3. Remove the Heater Lamp holding cover. (1 screw and 1 spring)
4. Remove the 2 mounting screws.
5. Pressing the right and left tabs (at 2 places), separate the upper
half of the Fusing Unit from the lower half.
6. Remove the bushings and the Backup Roller.
7. Remove the Fusing Entrance Guide.
(a) Push the Fusing Entrance Guide to the left.
(b) Pull out the right end of the Fusing Entrance Guide.
(c) Pull out the left end of the Fusing Entrance Guide.
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FO-4400U
FO-CS1