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Installing upgrades > 73
I
NSTALLING
UPGRADES
This section explains how to install optional equipment into your printer. This includes:
>
additional RAM memory (C331 and C531/ES5431 only)
>
SD card (C531/ES5431 only)
>
additional paper tray
1
M
EMORY
UPGRADE
(C331
AND
C531/ES5431
ONLY
)
The basic printer models comes equipped with the following main memory:
>
C331: 128MB
>
C531/ES5431: 256MB
This can be upgraded with an additional memory board of 256MB or 512MB, giving a
maximum total memory capacity of:
>
C331: 640MB
>
C531/ES5431: 768MB
1.
Switch the printer off and disconnect the AC power cable.
2.
Remove the outer access cover and place it safely to one side.
1. Not C301 and C321
a
b