Toshiba e-STUDIO556 Service Manual page 243

Note:
Do not touch the board parts (especially the
3 variable resistors shown in the figure) of
the image quality sensor.
4.8.7 Drum separation finger (e-STUDIO556/656/756/856)
(1) Take off the drum.
( P.4-75 "4.8.2 Drum thermistor (THM5)
and Drum")
(2) Take off the image quality sensor.
( P.4-78 "4.8.6 Image quality sensor
(S14)")
(3) Remove 2 screws to take off the plate on the
rear side.
(4) Remove the E-ring to take off the cam.
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Variable resistor
Fig. 4-219
Screw
Fig. 4-220
E-ring
Fig. 4-221
e-STUDIO556/656/756/856/557/657/757/857
4 - 79
Variable resistor
Screw
Plate
Cam
DISASSEMBLY AND REPLACEMENT
4