For monochrome display units, the output will
be monochrome even if [Color] is selected for the [Print
Method].
Normally, these settings are only applied to
Screen Hard Copy. When HP Laser Jet printer prints the alarm
history, however, this setting is applied. For example, if you
select [Color] for HP Laser Jet color printer model, it prints in
color. If you select [Color] for a monochrome model, it cannot
print properly.