Toshiba e-STUDIO 5540C Service Manual page 211

(10) Pull out the EPU together with the transfer
belt. Then remove 2 screws.
Notes:
When reassembling, make sure the bosses
of the laser optical unit is securely inserted
into the hole of the plate.
(11) Slide the laser optical unit to the rear side
and then quietly pull out the unit towards the
paper exit side.
Notes:
When the laser optical unit is replaced, start
the equipment in the adjustment mode (05)
and perform the code 4721 before the
normal start-up.
Notes:
1. Do not leave fingerprints or stains on the
slit glass of the laser optical unit.
2. Pay close attention not to cause any
impact to the laser optical unit because it
is a precision apparatus.
3. Place the removed laser optical unit so as
not to cause any load for the polygonal
motor.
4. Do not disassemble the laser optical unit
in the field because it is precisely
adjusted and very sensitive to dust and
stains.
5. In the case of the laser optical unit,
horizontally hold the parts A and B shown
in the figure. Be careful not to apply
pressure to the top of the unit (the cover)
with your hands, etc. because the slit
glass and the polygonal motor are
installed in this section.
6. When the laser optical unit has been
taken off, keep the shutter closed unless
otherwise required.
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Fig. 4-103
Fig. 4-104
B
Fig. 4-105
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
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A
DISASSEMBLY and REPLACEMENT
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