Counter Measure For Toner Build Up - Ricoh FT7770 Service Manual

3.2.2 Counter Measure for Toner Build Up

To prevent toner buildup on the oil supply pad, the pressure of the cleaning
blade [A] has been increased.
Fusing cleaning
blade pressure
To increase the pressure, the screw [B] and the wire clamp [B] have been
removed and a longer screw (M4 x 25.5) [C] and a washer [C] have been in-
stalled. This longer screw pushes down the center of the cleaning blade.
This countermeasure can be done on the F20 and F21. We will inform you of
the procedure.
F21 F22
30 g 50 g
15-7
10 August 1990