Ricoh D158 Service Manual page 42

Copier Installation
7. Distribute a pack of developer [D] to all openings equally.

Do not spill the developer on the gears [E]. If you have spilled it, remove the
developer by using a magnet or magnetized screwdriver.

Do not turn the gear [E] too much. The developer may spill.
8. Reassemble the PCU and install it.
9. Shake the toner bottle [F] several times. (Do not remove the bottle cap [G] before you shake
the bottle.)
10. Remove the bottle cap [G] and install the bottle on the holder. (Do not touch the inner cap
[H].)
D158/D159/D160/D161/D170 2-10 SM