Ricoh FT6645 Manual page 283

DRUM UNIT
[B]
9. Remove the upper right cover [A]. (Refer to Upper Right Cover Removal.)
10. Remove the pin [B] of the push-lock fixing the toner collection coil casing.
NOTE: When removing the push-lock pin [B], catch the pin with needle-nose
pliers [C] (accessing from the hole under the main control board, as
shown).
When re-setting the push-lock pin [B], hold the pin with needle-nose
pliers. Then, while holding the pin above the push-lock holder [D],
push the pin head down with you finger. Insert your finger from the
space below the LCT connector bracket, as shown.
[B]
[C]
[D]
5-58
[A]
[C]
23 April 1993