Epson Action Laser II - Manual (Page 228)

The Memory Expansion Board
Checking the board
Complete the following steps to make sure that the memory
expansion board is installed properly and is functioning correctly.
1. Turn on the printer power and watch the display for the
following:
All the indicator lights on the display light briefly.
The message ROM Check appears.
The message RAM Check x.x MB appears.
2. Make sure that the amount of RAM displayed by the RAM check
status message matches the new total RAM memory, as shown
below:
Chip Sets Installed Total RAM
0.5MB chip sets in blocks A, B, C, and D
A 2.0MB chip set in block A, and 0.5MB chip sets in
blocks B, C, and D
2.5 MB
4.0 MB
2.0MB chip sets in blocks A and B, and 0.5MB chip
sets in blocks C and D 5.5 MB
If the correct amount of RAM does not appear, turn off the power
and remove the board to check that the chip sets are in the correct
block and that each chip is well-seated in its socket. If the RAM
check message is still incorrect, contact your dealer or a qualified
service person for assistance.
A-20 Options