As described earlier, these attributes can be set for dot-matrix report objects:
This is a standard set that is understood by all models of dot-matrix printer. Certain printer models can support other commands that are not present in the standard set, for example printing at 20 character per inch resolution. To be able to send these extra attributes to the printer use the “ESC-Command” object 
in the report.
Place the “ESC-Command” object at the correct place on the report page, before any objects which use the non-standard attributes (e.g. in the top left corner of the page). To set a command edit the Command property of the object in the object inspector:
The property can be set using one of the two formats :
decimal (e.g. #27#40) or hexadecimal (e.g. 1B28).