In microcomputer system, the most important device to display data is CRT. But large amount of data cannot be displayed using CRT. So, printer is used to display and store large amount data. Hence we require a PRINTER INTERFACE MODULE to interface a printer to the microcomputer system. Before studying the printer interface module we shall understand the operation theory of printer.
The purpose of this trainer is to understand how to program a printer interface and write programs to make the printer to print any desired character. Printer interface module is connected to the system bus, of Microprocessor trainer, model MPT-85. The interface module has electronics required for connecting to a printer. The emphasis in this trainer is to study the signal requirement of a printer, from Microprocessor interfacing angle. Sample programs are providing to test the interface for printing standard character. Four LEDs indicate the status of select, printer enable, busy and error. The module comes with power supply. Printer cable not supplied.
Note: This experimental module can be interfaced Microprocessor trainer MPT-85
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