HP LaserJet 9000 Printer series - Manual (Page 200)

Appendix C Printer memory and expansion 200
Installing memory
Installing memory
Use this procedure to install additional memory. Before you begin, print a configuration page by pressing 22
on the numeric keypad to find out how much memory is installed in the printer before adding more memory.
The table lists the maximum amount of memory allowed for each DIMM slot.
Note To obtain 384 MB of memory, you need to remove the 64 MB that came with the printer and replace it
with 128 MB.
Slot label on the
Configuration page Slot label on the
Formatter board
Description
Slot 1 J1 Flash firmware
Slot 2 J2 64 MB
Slot 3 J3 128 MB
Slot 4 J4 128 MB
Total 384 MB