Oki B6200 Maintenance Manual page 238

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.
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.
In the following steps, the GEAR PB L, GEAR BTM DMP ONEWAY (PL3.1.8) and
GEAR BTM LOCK ONEWAY (PL3.1.15) will be detached. Be careful not to lose
these gears.
7) Release the hook of the GEAR PB R (PL3.1.20), and remove it from the SHAFT PB (PL3.1.9).
It is hard to remove GEAR PB R. When removing it, be careful not to break it.
8) Disengage the GEAR PB L from the PLATE GEAR LOCK 250 while bending the HOUSING BASE
250 in the dirction of the arrows. Remove the PLATE ASSY BTM together with the SHAFT PB,
GEAR PB L, GEAR BTM DMP ONEWAY, and GEAR BTM LOCK ONEWAY from the HOUSING
TOP 250.
9) Pull out the SHAFT PB from the PLATE ASSY BTM, and remove the GEAR PB L, GEAR BTM
DMP ONEWAY and GEAR BTM LOCK ONEWAY.
Replacement
1) Insert the SHAFT PB into the PLATE ASSY BTM, and insert the GEAR BTM DMP ONEWAY,
GEAR PB L and GEAR BTM LOCK ONEWAY to the SHAFT PB.
2) While disengaging the GEAR PB L, install the assembled PLATE ASSY BTM to the HOUSING
TOP 250 (PL3.1.16).
When installing the PLATE ASSY BTM, be sure to put 2 SPRING BTM UP 250s
(PL3.1.18) into the bosses on the back of the PLATE ASSY BTM.(NOTE1).
Be sure to put 2 claws that on the top of the PLATE ASSY BTM under the hooks on
the HOUSING TOP 250.(NOTE2).
3) Install the GEAR PB R (PL3.1.20) to the SHAFT PB (PL3.1.9), and secure it with the hook.
Be sure to install the hook of the GEAR PB R into the groove of the SHAFT PB.
When installing the GEAR PB R, be sure to lift up the PLATE ASSY BTM. If the
PLATE ASSY BTM is inclined, a paper skew or jam may occur. Check after the
installation is completed.
4) While pressing down the hook of the HOUSING TOP 250, install the GUIDE ASSY SD R250
(PL3.1.13) to the HOUSING TOP 250.
Chapter 3 Removal and Replacement Procedures (RRPs)
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