Oki B6200 Maintenance Manual page 225

Removal
1) Remove the COVER CST (PL3.1.1) from the 250 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 (PL3.1.12) to the HOUSING TOP 250 (PL3.1.16),
and remove the GEAR PINION.
4) While pressing down the lock of the STOPPER GEAR (PL3.1.28), release the lock of the LEVER
BTM LOCK (PL3.1.26) to lift up the PLATE ASSY BTM (PL3.1.10). (Figure 3.5)
5) Slide the GUIDE ASSY SD L250 (PL3.1.11) inward, and remove it from the HOUSING TOP 250 by
pressing down the hook of the HOUSING TOP 250.
6) Slide the GUIDE ASSY SD R250 (PL3.1.13) inward, and remove it from the HOUSING TOP 250
by pressing down the hook of the HOUSING TOP 250.
7) Remove the 2 screws (gold tapping, 8mm) from both right and left sides, as well as 6 the screws
(gold tapping, 8mm) on the back, that secure the HOUSING TOP 250 to the HOUSING BASE 250
(PL3.1.36).
8) Release the 4 hooks of the HOUSING TOP 250, and remove the HOUSING TOP 250 and HOUS-
ING EXTENSION 250 (PL3.1.34) from the HOUSING BASE 250.
9) Remove the 4 screws (gold tapping, 6mm) securing the COVER EXTENSION (PL3.1.30) to the
HOUSING EXTENSION 250.
10) Remove the COVER EXTENSION from the HOUSING EXTENSION 250.
11) Lift the front of the RACK SIZE a little, and turn it in the direction of the arrow to remove it from the
HOUSING EXTENSION 250.
Replacement
1) Put the hook of the top of the RACK SIZE into the gfroove of the HOUSING EXTENSION 250
(PL3.1.34), and turn it in the opposite direction of the arrow.
2) Align the end of the RACK SIZE with the triangle mark printed on the HOUSING EXTENSION 250
as shown in the figure, and install the RACK SIZE to the HOUSING EXTENSION 250.
When installing the RACK SIZE, be sure to draw out the GUIDE ASSY END 250
(PL3.1.35) as far as it will go.(NOTE1).
3) Install the COVER EXTENSION (PL3.1.30) to the HOUSING EXTENSION 250 using the 4 screws
(gold tapping, 6mm).
When installing, make sure the COVER EXTENSION is inserted under 3 claws of the
HOUSING EXTENSION 250.(NOTE2).
Use 6mm size of fixed screw. If 8mm size of screw is used, HOUSING EXTENSION
250 doesn't operate smoothly and LOCK EXTENSION 250 doesn't operate
correctly.
4) Install the HOUSING EXTENSION 250 and HOUSING TOP 250 (PL3.1.16) to the HOUSING
BASE 250 while pushing the LINK SW SIZE1-250 (PL3.1.37), LINK SW SIZE2-250 (PL3.1.38) and
LINK SW SIZE3-250 (PL3.1.39) of the HOUSING BASE 250 outward as shown in the figure.
Be sure to put 2 claws on the top of the PLATE ASSY BTM under the hooks on the
HOUSING TOP 250.(NOTE3).
5) After assembling the HOUSING TOP 250 to the HOUSING BASE 250 using the 4 hooks, secure
them using the 2 screws (gold tapping, 8mm) on both right and left side, as well as the 6 screws
(gold tapping, 8mm) on the back.
Chapter 3 Removal and Replacement Procedures (RRPs)
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