How do I use the 053376S cartridges for my LX400?

How do I use the 053376S cartridges for my LX400?

Visit this page to download the firmware required for this ink or follow the instructions below.

LX400 Firmware Upgrade for 053376S

IMPORTANT: This 053376S ink cartridge for LX400 can only be used with units containing a serial number of 2120700001 or greater (manufactured later than July 1st 2012).  If your serial number is less than/earlier than this you cannot use this cartridge.

If your serial number is greater/later than 2120700001(manufactured later than July 1st 2012), to use the cartridge, you must perform a firmware upgrade. Download and run the utility located at the link below to upgrade your firmware. There is no firmware update available for Mac users.

-LX400_Firmware Version 1.25_PGA7 (PC Only).