OCR Character Sets

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 Cn 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 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.

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.

253

Page 253
Image 253
Printronix LQH-HWTM manual Accessing Characters and Character Sets, OCR Character Sets, Data Bit