Panasonic KX-P8420 Operating Guide

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The printer controller board ships with the following memory configuration:
 
 
The DIMM slot numbered J1, is reserved for the printer’s system software 
ROM DIMM.
 
 
The DIMM slot numbered J8 contains a 16 MB SDRAM DIMM. 
 
 
The remaining two slots, J2 and J3 are empty. 
Additional SDRAM DIMMs may be purchased for your printer in 16 or 
32 MB configurations, allowing your printer a maximum memory 
configuration of 80 MB of SDRAM. 
To install a SDRAM DIMM you will need to remove the printer controller 
board, install the SDRAM DIMM, then replace the controller board in the 
printer. For instructions, see “Removing and replacing the printer controller 
board” on 
Installing SDRAM 
DIMMs
The lever may be only on one side 
of each socket.
J8 (Standard DIMM)
J1 (ROM DIMM)
J2 (Empty)
J3 (Empty)