Chapter 5. Proprinter Emulation GEK-00029B
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CHAPTER 5. PROPRINTER EMULATION
INTRODUCTION
The IBM Proprinter III XL emulation Is selected through the control
panel. Printer option straps Proprinter Ta ble (Appendix D) replace the
applicable switches used on a Proprinter.
Although every effort has been made to make this printer functionally
similar to the Proprinter, some differences do exist.

DIFFERENCES FROM PROPRINTER

▪ Non-Proprinter fonts are available; however, proportional spacing
line lengths may be different.
▪ Download fonts are not available.
▪ The Proprinter 20 cpi font is not available.
▪ Bidirectional and unidirectional printing do not apply on this
printer.
▪ Double-width and double-height characters are slightly different.
▪ 240 dpi graphics are printed on a 120 dpi grid. Adjacen t dots are
OR'ed together. The aspect ratio of this printer (height vs. width of
a graphic image) is identical to the Proprinter.

PROPRINTER CONTROL CODES

BEL Bell: Sounds a momentary audible tone.
Decimal: 7
Hex: 07
BASIC: CHR$(7);
BS Backspace: Moves the print position one character to the left. This
code is normally used for overstriking a character. When the print
position is at the left margin, a received BS has no effect.
Decimal: 8
Hex: 08
BASIC: CHR$(8);
CAN Cancel: Causes all printable data received since the last line
terminator to be deleted. Print modes enabled since the last
terminator (other than double-width printing initiated by the SO
code) stay in effect. Example: If underlining was enabled during the
line, it will still be active for the next line received. The cancel control
code does not change the current print position.
Decimal: 24
Hex: 18
BASIC: CHR$(24);