Olivetti D-COLOR P26 - Manual (Page 154)

Installing upgrades> 154
(d) When the menu 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.
If you are using the Windows PostScript driver, follow the
instructions later in this section to adjust the driver.