From Mr. Simonson:
Oh, by this reason robocopy shown a last character as a lead underscore when it was copying a lot of files. With Anonymous Pro font there is not this lead underscore.It has to do with the leading (lead as in the metal, not as in 'to cause to follow'). In essence, the console is expecting the font of a given height to be placed on a matching die. If you place the characters on a smaller die-height, then in ordinary print, the lines of text are closer together.
To get normal spacing with a font like this, printers insert strips of lead between the rows to space them out further.
The console application is spacing the fonts out as if the die-height matches the regular spacing, and what you see in the picture as white stripes, is where the printers would insert a line of leadding.
You sometimes see it when programs show you where there are characters vs where there is screen-blanks, because the character backgrounds are different to the blank screen. This is sometimes useful when looking for the characters at the end of a line that should not be there.