Oki ES3037 User Manual page 222

b. Carefully insert the module in the socket, placing the ends
into the slot in the lock tabs. Press down firmly, until you
feel the board engage the connector, then make sure the
white tabs come up to lock the module in place..
4. Replace the main board and secure it with the two screws.
5. Reconnect the printer interface cable and power cable, then
switch on the printer.
If the error message SERVICE CALL/034 appears on the LCD
after switching the printer on, turn the printer off and pull the
main board back out and make sure the memory modules
have been installed correctly.
6. Print a MenuMap (see "Printing the MenuMap" on page 38)
and check that the Total Memory Size shown at the top of the
MenuMap matches the memory now installed in the printer. If it
doesn't, turn the printer off and pull out the main board and
check to be sure that the modules are all firmly seated in their
connectors.
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ES 3037/3037e Accessories • 222