Dot Matrix or Serial Printers:
In a Dot Matrix printer, a print head is a collection of pins in 9×7 arrays. Values of all characters are stored in the printer buffer. When a character has to be printed, the printer sends the information to printer buffer. When the character head hits the paper, these pins are used to form a character. There is a carbon ribbon in between the print head and paper. So, when the print head strikes an impression is produced in the paper.
- It prints one character at a time.
- Many fonts can be used.
- Characters are made by combining dots.
- Poor printing speed and quality.