To enable the actual printing of a previewed dot-matrix report it is necessary to first place a TfrxDotMatrixExport 
component from the “FastReport” component palette on your Delphi project form. This component handles the conversion of the preview report into the text format required by dot-matrix printers. It also replaces the normal printer dialogue with a special one for dot-matrix printers:
The printer dialogue is similar to the normal one, but has dot-matrix printer specifics. The printer's commands system must be chosen from the following list before printing (the ESC-commands):
There are also some other options for dot-matrix printing:
- Print to file : whether to send the print stream to a file on the hard disk. If enabled then the normal 'Save As...' dialogue appears
- Page breaks : whether a “Page break” control command is sent on reaching the bottom of the page. If disabled then printing is unbroken on continuous stationery
- ОЕМ-codepage : whether to perform symbol conversion
- Pseudographic : specifies how to draw vertical and horizontal lines. If disabled then lines are drawn using -, | and + symbols