LxSUpMon.exe
(Lexmark)
Lexmark Status Update Monitor. System Tray icon which enables you to monitor your Lexmark inkjet printer (ink cartridge level, nozzle checks, head cleaning, print progress, etc...).
Recommendation :
The type of printer you have will dictate whether you will want to keep this icon or not increasingly, modern inkjet printers have no LEDs on the printer which indicate whether you are running out of ink or not; the only way to check that is through the System Tray printer monitor icon. This may be the case for you, in which case you will want to keep this task. Should you need to disable it, you can do so with Starter.