Oki C810 User Manual - page 86
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Installing upgrades > 86
15. Reconnect the AC power cable and switch the printer on.
16. When the printer is ready, print a menu map as follows:
(a)
Press the Enter button.
(b)
Press the Menu up button then the Enter button to select the Print Information
menu.
(c)
Select Configuration with the Enter button.
(d)
Press the Enter button once more to execute the Configuration menu.
(e)
When the Configuration map is printed, press On Line to exit the menu system.
17. Examine the first page of the menu map.
Near the top of the page, between the two horizontal lines, you will see the current
printer configuration. This list contains the figure for total memory size.
This should indicate the total memory now installed.