Questionable processes in taskmaster

I have a Dell desktop about seven years old running XP.
When I open Taskmaster I see some questionable processes running:
LEXPPS.Exe, and LEXBCES.EXE. For several years I had a Dell printer and
have replaced it with an HP printer. I think my old Dell printer was made by
Lexmark. Do still need these 2 items oe can I erase them?

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows XP Home Edition, Service Pack 3, 32 bit
Processor: Intel(R) Pentium(R) 4 CPU 2.40GHz, x86 Family 15 Model 2 Stepping 9
Processor Count: 2
RAM: 2558 Mb
Graphics Card: NVIDIA GeForce FX 5200, 128 Mb
Hard Drives: C: Total - 38099 MB, Free - 13369 MB;
Motherboard: Dell Computer Corp., 02Y832
Antivirus: None