Ricoh FT6645 Manual page 270

23 April 1993
7. Replace the sleeve rollers.
8. Re-assemble the development unit and set the developer, then
re-assemble the copier.
CAUTION: If the original developer (already used) is returned to the
development unit, do not perform the developer initial
setting.
If the new developer is set, never make any copy before completing the
developer initial setting ( SP Adjustment – PAGE.1).
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DEVELOPMENT AND TONER SUPPLY