It is a nuisance. If you are a translator, designer, or Japanologist, you should hide or replace it immediately. Relying on HP Simplified Japan for real work is like painting a masterpiece with a toothbrush.
If you receive an error saying "HP Simplified Japan not found" when opening an old HP document: hp simplified japan font
: Designed to bridge the gap between digital display and physical print, ensuring what you see on screen matches the printer output. It is a nuisance