Printronix LQH-HWTM - Manual (Page 253)

OCR Character Sets
253
Accessing Characters and Character Sets
OCR Character Sets
Purpose Accesses OCR-A and OCR-B character sets.
Mode CREATE, NORMAL and EXECUTE
Format See Comments
Comments In the Create mode, you can access OCR fonts using the
alphanumeric command. Use the C n parameter in the ALPHA
command. See page 29 for more information. In the Normal and
Execute modes, you can access OCR fonts using the
Compressed Print (Density) command (page 45).
Data Bit 8
You can access individual characters using data bit 8 addressing. The
primary character set is ASCII. These character values reside at hex
addresses 20 through 7F. The multinational or extended character sets reside
at hex addresses 80 through FF and are accessible without reconfiguration.
Power-Up Character Set Selection
You can select any one of the twelve resident multinational character sets
shown in Table 21 (0 through 11) as the default character set at printer power-
up. The IGP configuration settings determine which character set is the
default character set at power-up.
The character font selected at power-up will remain active until the ISET
command is selected or the configuration is changed. OCR and user-
definable character sets cannot be configured as the default character set at
printer power-up.
Note OCR fonts are only available in 10 cpi.
Note Data bit 8 must be set high so that multinational or extended
character sets are accessible without reconfiguration.
However, the PION/PIOFF command (page 79) must
also
be set OFF to access these character sets in the 80-FF hex
range. A PION setting will cause data in the 80-FF hex
range to be interpreted as PI line data instead of extended
character set data.