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The Memory Chip Set
1.
Turn on the printer power and watch the display for the
following:
l All the indicator lights on the panel light briefly
l The message ROM Check appears
l 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:
Printer controller board
Total RAM when filled
Board without chip set
Board with 1 chip set (4 chips)
Board with 2 chip sets (8 chips)
Board with 3 chip sets (12 chips)
0.5 MB
1.0 MB
1.5 MB
2.0 MB
If the correct amount of RAM does not appear, turn off the
power and remove the board to check that the chip set is in
the correct sector and that each chip is well-seated in its
socket. If the RAM check message is still incorrect, contact
your service representative for assistance.
If insufficient memory is still a problem even after you increase
the memory with memory chip sets, you can install a memory
expansion board as described in the next section.
Appendix A A-41