Ricoh FT4227 Manual page 486

CLEANING
4.2 CLEANING BLADE REPLACEMENT
[A]
1. Remove the cleaning unit [A] (see Cleaning Unit Removal.)
2. Remove the cleaning blade [B] (1 shoulder screw).
3. While holding up the cleaning blade release lever, install the new
cleaning blade between the blade bracket [C] and the blade scraper.
NOTE: a) Do not touch the edge of a new cleaning blade, as it is
damaged easily.
b) After installing a new cleaning blade, make sure that the blade
swivels smoothly.
5-30
12 February 1992
[C]
[B]