IBM Language Reference

Proprinter Command Set (Used for IBM Matrix printers)
PPDS Command Set (Through level 2 - Used for IBM Laser printers; i.e. 4019/4029)

Proprinter Command Set

Page Control Commands
Graphics Commands
Character/Print Mode Commands
Print Mode Selection

PPDS Command Set

Text Print Modes
Page Format
Graphics Print Modes
Printer Control
Font Selection
Macros
Cursor Control and Line Spacing
Resetting the Printer