HP Officejet Lx All-in-One - Manual (Page 162)

Resolution
6`9
Changing the Scanned Image Quality
The following menu map guides you to the same options as found in the OfficeJet
Setup/Scanned Image Quality menu in the HP OfficeJet LX Manager.
Adjusting the Contrast
Normal
Lighten
Darken
Menu
Time/Date, Header
Reports
Fax/Copy Contrast
...
Adjusting the Resolution
Press the front panel Resolution button to change resolution. Refer to chapter 2 to know
which resolution settings to use in a given situation.
6. Front Panel