HP LaserJet 1320 - Manual (Page 168)

Testing the DIMM installation
To test the DIMM installation, print a configuration page, and check the Total Memory
specified on the page. See
Printer information pages for more information.
If all lights on the control panel are blinking, the DIMM installation was unsuccessful.
Remove the DIMM and reinstall it.
Removing a DIMM
To remove a DIMM, follow the instructions below:
CAUTION Handling a DIMM (memory) without wearing a grounded, antistatic device might damage the
DIMM. Touch any metal part of the printer or other grounded metal before touching the DIMM.
1. Turn off the power switch, and unplug the printer.
2. Open the print cartridge door. To open the left side panel, gently pull it out.
158 Appendix D HP parts and accessories ENWW