Bicu And Controller Board; Bicu; Preparation; Procedure - Ricoh D127 Field Service Manual

BICU and Controller Board

• Turn off the main power switch and unplug the machine before starting replacement.
• Before turning off the main power switch, check that no mechanical component is operating.
Mechanical components +may stop out of their home positions if you turn off the main power
switch while they are operating. The component may be damaged if you try to remove it when it is
not in the home position.

BICU

Preparation

• Before replacing the NVRAM, be sure to save the NVRAM data.
• Saving from the BICU NVRAM to an SD card (
the "System Service Mode" of the appendices of the this manual.)

Procedure

1. Rear cover ( p.78 "Rear Cover")
2. Controller box [A] ( x 6, x 2)
p.144 "NVRAM Data Upload/Download" in
BICU and Controller Board
107