Ricoh B082 Service Manual page 863

BULLETIN NUMBER:
APPLICABLE MODEL:
GESTETNER – 3532/4532
LANIER - LD035/LD045
RICOH – Aficio 2035/2045
SAVIN – 4035/4045
SUBJECT: CONTROLLER HANDLING
SYMPTOM:
The data stored in the NVRAM (e.g. time, S/N, SP data) is sometimes overwritten when the controller is
removed and reattached.
CAUSE:
Static electricity builds up on the board when it is removed.
SOLUTION:
As a temporary measure, please observe the following cautionary notes whenever removing/reattaching the
controller, such as when repairing the machine or installing an option.
Important:
1. Before removing the controller board, make sure to unplug the main power cord and all interface cables
first.
2. Before touching the controller board or other components, make sure to discharge any static electricity
from your hands by touching a metallic surface nearby (machine frame or other).
3. Make sure not to touch the controller board circuit pattern or any of the contact pins (especially the
NVRAM pins). Always make sure to hold the board by its insulated areas (see illustration below).
4. Whenever removing the controller from the machine, never lay the board down directly onto a metallic
surface. Always be sure and place the board onto a sheet of non-conductive material (e.g. paper or
bubble wrap).
Important: Always make sure to hold the board by its insulated areas, as shown below:
Copyright     2003 RICOH Corporation. All rights reserved.
TECHNICAL SERVICE BULLETIN
B079/B082 – 003 07/07/2003
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