Oki B6200 Maintenance Manual page 251

Removal
1) Remove the COVER CST (PL4.1.1) from the 550 PAPER CASSETTE.
2) Release the lock of the LOCK EXTENSION, and draw out the cassette extension as far as it will
go.
3) Release the hooks securing the GEAR PINION (PL4.1.12) to the HOUSING TOP 550 (PL4.1.16),
and remove the GEAR PINION.
4) While pressing down the lock of the STOPPER GEAR (PL4.1.29), release the lock of the LEVER
BTM LOCK (PL4.1.27) to lift up the PLATE ASSY BTM. (Figure 4.5)
5) Slide the GUIDE ASSY SD L550 (PL4.1.11) inward, and remove it from the HOUSING TOP 550 by
pressing down the hook of the HOUSING TOP 550.
6) Slide the GUIDE ASSY SD R550 (PL4.1.13) inward, and remove it from the HOUSING TOP 550
by pressing down the hook of the HOUSING TOP 550.
7) Remove the 2 screws (gold tapping, 8mm) from both right and left sides, as well as the 6 screws
(gold tapping, 8mm) on the back, that secure the HOUSING TOP 550 to the HOUSING BASE 550
(PL4.1.44).
8) Release the 4 hooks of the HOUSING TOP 550, and remove the HOUSING TOP 550 together
with the HOUSING EXTENSION 550 (PL4.1.42), from the HOUSING BASE 550.
9) Remove the 4 screws (gold tapping, 6mm) securing the COVER EXTENSION (PL4.1.31) to the
HOUSING EXTENSION 550.
10) Remove the COVER EXTENSION from the HOUSING EXTENSION 550.
11) Lift the front of the RACK SIZE (PL4.1.40) a little, and turn it in the direction of the arrow to remove
it from the HOUSING EXTENSION 550.
Replacement
1) Put the hook of the top of the RACK SIZE into the groove of the HOUSING EXTENSION 550
(PL4.1.42), and turn it in the opposite direction of the arrow.
2) Align the end of the RACK SIZE wth the triangle mark printed on the HOUSING EXTENSION 550
as shown in the figure, and install the RACK SIZE to the HOUSING EXTENSION 550.
When installing the RACK SIZE, be sure to draw out the GUIDE ASSY END 550
(PL4.1.43) as far as it will go.(NOTE1).
Use 6mm size of fixed screw. If 8mm size of screw is used, HOUSING EXTENSION
550 doesn't operate smoothly and LOCK EXTENSION 550 doesn't operate
correctly.
3) Install the COVER EXTENSION (PL4.1.31) to the HOUSING EXTENSION 550 using the 4 screws
(gold tapping, 6mm).
When installing, make sure the COVER EXTENSION is inserted under 3 claws of the
HOUSING EXTENSION 550.(NOTE2).
4) Install the HOUSING EXTENSION 550 and HOUSING TOP 550 (PL4.1.16) to the HOUSING
BASE 550 while pushing the LINK SW SIZE1-550 (PL4.1.37), LINK SW SIZE2-550 (PL4.1.38) and
LINK SW SIZE3-550 (PL4.1.39) of the HOUSING BASE 550 outward as shown in the figure.
Be sure to put 2 claws that on the top of the PLATE ASSY BTM under the hooks on
the HOUSING TOP 550.(NOTE3).
5) After assembling the HOUSING TOP 550 to the HOUSING BASE 550 using the 4 hooks, secure
them using the 2 screws (gold tapping, 8mm) on both right and left sides, as well as the 6 screws
(gold tapping, 8mm) on the back.
Chapter 3 Removal and Replacement Procedures (RRPs)
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