Ricoh D131 Service Manual page 225

2. Front bracket [B]
3. Rear bracket [C]
4. Front block cover [D]
5. Rear block cover [E]
6. Corona wire [F]
7. Disconnect the wire behind the grid bracket.

Never touch the charge corona wire with bare hands. Always protect it from dust, oil,
etc.

Never bend or knot the wire. Charge will not distribute evenly on a bent wire.

Make sure that the wire seam [G] is as close as possible to the wire hook at the rear.

At the front and back, make sure that the wire is threaded correctly into the grooves
in the end blocks.

After replacing the charge corona wire, make sure that the wire cleaner pads are
engaged correctly with the wires.

After replacing the wire, set SP2001-001 (Charge Roller Bias Adjustment – Applied
Voltage for Image Processing) to the default.
SM 4-39
Drum Unit
D131/D132/D133