Canon iR1200 Series Service Manual page 416

Chapter 15
#4C
#5
When changing the TYPE setting, be sure not to select a country/region which is not the country/region of
installation.
15-8
The settings under this item are collectively and automatically set in
conjunction with #5 TYPE to suit the communications standards of a
specific country/region.
Not used. (Do not change the setting.)
ISDN
Not used.
TYPE
Use it to select a specific country/region from the list so that the settings
under #1 through #4 will comply with the communications standards of
the selected country/region.