Oki B6200 Maintenance Manual page 264

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.
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.
In the following steps, the GEAR PB L (PL4.1.7), GEAR BTM DMP ONEWAY
(PL4.1.8) and GEAR BTM LOCK ONEWAY (PL4.1.15) will be detached. Be careful
not to lose these gears.
7) Release the hook of the GEAR PB R (PL4.1.20), and remove the GEAR PB R from the SHAFT PB
(PL4.1.9).
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 550 while bending the HOUSING BASE
550 in the direction 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 550.
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 (PL4.1.9) into the PLATE ASSY BTM, and insert the GEAR BTM DMP ONE-
WAY, 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 550 (PL4.1.16).
When installing the PLATE ASSY BTM, be sure to put 2 SPRING BTM UP 550s
(PL4.1.18) 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 550.(NOTE2).
3) Insert the link lever of the GUIDE INDICATOR1 (PL4.1.34) into the hole of the PLATE ASSY BTM.
(Figure 4.8)
4) Install the GEAR PB R (PL4.1.20) to the SHAFT PB (PL4.1.9), 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 PLATE GEAR LOCK 550, 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.
Chapter 3 Removal and Replacement Procedures (RRPs)
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