Analysis of information sources in references of the Wikipedia article "HP 300" in English language version.
009 - Roman Extension Set […] option 009 gives all the commonly used European characters a unique code. When this "Roman Extension" set is used in conjunction with the standard ASCII character set, the result is a 256 character set represented by 8-bit code. The use of shift-in and shift-out characters is not required, since decimal codes 0 through 127 automatically access USASCII while codes 128 through 255 access the European characters. It IS Important to understand the differences between the two techniques and to know which technique IS supported on a given system. The HP 250 and HP 300 support the 8-bit code technique, consequently, 2631A option 009 must be ordered to provide local language printing on these two systems. All other HP computer systems and the 264X terminals support the 7-bit code, shift-in/shift-out method.
009 - Roman Extension Set […] option 009 gives all the commonly used European characters a unique code. When this "Roman Extension" set is used in conjunction with the standard ASCII character set, the result is a 256 character set represented by 8-bit code. The use of shift-in and shift-out characters is not required, since decimal codes 0 through 127 automatically access USASCII while codes 128 through 255 access the European characters. It IS Important to understand the differences between the two techniques and to know which technique IS supported on a given system. The HP 250 and HP 300 support the 8-bit code technique, consequently, 2631A option 009 must be ordered to provide local language printing on these two systems. All other HP computer systems and the 264X terminals support the 7-bit code, shift-in/shift-out method.