When the Overstrike flag (%) is turned on and inserted between
two characters, it causes the first of the two characters to be
overstruck by the following one. By default, the Overstrike flag
This capability allows the printing of characters not normally
available, for example, a European 7, which is a 7 overstruck
with a hyphen.
Three or more characters can be overstruck, but only if you
specify the /BACKSPACE qualifier in the DSR command line.
Otherwise, only the first and last characters in an overstrike
sequence will appear.
The action performed by this flag (as opposed to the flag's
recognition) can be disabled and reenabled by the .DISABLE
OVERSTRIKING and .ENABLE OVERSTRIKING commands.