Hi howard

[m venugopal]

Printer are classified into two types
1 Impact Printers
       1.1 Character printer
               1.1.1 Dot Matrix Printer
       1.2 Lines Printer
2 Non Impact Printers
       2.1 Character Printer
               2.1.1 Ink-jet
`        2.2 Page Printer
               2.2.1 Laser 

Is this the information you are looking for? If no, let me know what exactly you are looking for,