Ricoh Aficio SP C811DN Hardware Manual page 43

6. Insert the protrusions on the user account enhance unit into the holes on the controller board.
7. Press the user account enhance unit down until it clicks into place, and confirm that it is held
securely.
8. When also installing the SDRAM module, install it before returning the controller board to
the printer.
9. Fit the controller board into the printer, and push it carefully in until it stops.
Push it firmly into the printer using the handle. The printer may malfunction if the controller board is
not properly installed.
ATU012S
ATU013S
ATU009S
Installing the User Account Enhance Unit
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