Epson 1500 - Manual (Page 96)

FULL PRINT
This Level 1 option is a submenu of SYSTEM CONFIG. The
default setting of 0 is sufficient for most uses of the printer. If
the printer displays the message S ET F U L L P RI NT, increase
this setting. The setting (any number from 0 through 62) times
20 is the number of kilobytes (KB) reserved in RAM for page
composition. For example, a setting of 5 reserves 100KB.
Menu/submenu Available options
FULL PRINT 0 0 to 62
The following table shows the maximum setting necessary for
each size of paper. The setting may be lower than the
maximum, but it will never need to be higher.
GLT 45 C5 38
Since the amount of RAM you reserve with this option is not
available for any other purpose, it is best to leave the setting at
0 until you see a SET FULL PRlNT message. Then, increase the
setting in small increments until the error does not occur.
4-12 SelecType