HP 4345xm - LaserJet Mfp B/W Laser, Supplementary Manual, Page: 8 / 24

2 Chapter 1 Introduction
ENWW
check the version of firmware (FW date code) currently installed on
your MFP by printing the MFP configuration information (see your
user’s guide for details).
Note
To use the new fax features, you must download and install the most
recent MFP printer firmware update. Fax firmware updates are part of
the MFP firmware (separate fax firmware is not available).
Be sure to keep this supplemental information with the HP LaserJet
MFP Fax Accessory User Guide originally supplied with your MFP or
fax accessory.