3.5 SCANNER IPU BOARD REPLACEMENT
1. Remove the exposure glass (see procedure 1.4).
2. Remove the scanner inner cover (see procedure 3.2).
3. Remove the SBU (see procedure 3.3).
4. Remove the scanner board cooling fan [A] (1 screw).
5. Remove the IPU board [B] (13 connectors, 5 screws).
NOTE: When removing the IPU board, pull the board towards the front of
the copier to disconnect it from the IDU connector [C].
[A]
[C]
[B]
Replacement
and
Adjustment
SCANNER UNIT
SM 5-17 A166/A187/A189
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