PGL Programmer's Reference Manual

OCR Character Sets

243

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

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).

NOTE: OCR fonts are only available in 10 cpi.

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.

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 78) must

also

be set OFF to access

these character sets in the hex 80-FF range. A PION setting will

cause data in the hex 80-FF range to be interpreted as PI line data

instead of extended character set data.

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/PGL 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.