Oki B6200 Maintenance Manual page 230

After tightening the screws, move the GUIDE ASSY END 250 back and forth, and
make sure that the LINK SW SIZEs operate smoothly.
7) While pressing down the hook of the HOUSING TOP 250, install the GUIDE ASSY SD R250
(PL3.1.13) to the HOUSING TOP 250.
After installing, make sure that the 3 claws of the GUIDE ASSY SD R250 sit
correctly in the grooves of the HOUSING TOP 250.
8) While pressing down the hook of the HOUSING TOP 250, install the GUIDE ASSY SD L250
(PL3.1.11) to the HOUSING TOP 250.
After installing, make sure that the 3 claws of the GUIDE ASSY SD L250 sit
correctly in the grooves of the HOUSING TOP 250.
9) Push the PLATE ASSY BTM downward to lock.
10) With completely opened GUIDE ASSY SD L250 (PL3.1.11) and GUIDE ASSY SD R250
(PL3.1.13) to the both sides,install the GEAR PINION (PL3.1.12) to the HOUSING TOP 250.
When installing the GEAR PINION, make sure the GUIDE ASSY SD R250 and GUIDE
ASSY SD L250 are completely opened. If not, the side register may be misaligned.
11) Install the COVER CST (PL3.1.1) to the 250 PAPER CASSETTE.
Chapter 3 Removal and Replacement Procedures (RRPs)
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