Volume : 2, Issue : 12, December - 2013

Global Journal For Research Analysis, Vol:2, Issue:12 December 2013

Amina Khatra

Abstract :

Fujitsu 2” Thermal Printer Mechanism (FTP–628–MCL–004) is ultra compact high speed, battery driven thermal printer, printing on 2–inch wide thermal paper (58mm). The FTP–628 MCL series can be used for a variety of applications, such as portable terminals, POS, ticket issuing terminals, label printers, banking terminals, measurement, medical equipment and ATMs. The interfacing card is planned to be designed using the Phillips P89V51RD2 microcontroller (8–bit μC with 256 Bytes RAM and 32 IOs). Printing data from source can be made input to the interfacing card over Centronic (Parallel), serial or USB channel using the standard data cable connectors. However, printing data from card to thermal printer is sent serially at a rate of 1 Mbits per sec. Dual Full–Bridge Driver L–298 has been used for controlling the stepper motor of the thermal printer. Character size is 16 x 22 dots (W x H) including six dots line gap. There are 384 dots on thermal head. Therefore, 24 no. of characters (24 columns) can be accommodated in a single line printing. The proposed thermal printer mechanism employs six strobes for firing/printing of dots. For, controlling of temperature of the thermal head, the strobes are connected in three pairs on interfacing card i.e. Strobe – 1 and 2, Strobe – 3 and 4 and Strobe 5 and 6. Each pair of strobes is given 1 msec. of time for firing of dots, and that also maintains the temperature of the thermal head.