Scott Penrose > Device-ParallelPort > Device::ParallelPort::Printer

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NAME ^

Device::ParallelPort::Printer - Emulate a normal old style printer using Device::ParallelPort

SYNOPSIS ^

        use Device::ParallelPort::Printer;
        my $printer = Device::ParallelPort::Printer->new('parport:0');
        $printer->sendfile('demo.ps');

DESCRIPTION ^

This is a demonstration only and does not have any real practical application. It has been written as a demonstration on how to write drivers for Device::ParallelPort.

Device::ParallelPort provides a raw interface to the parallel port. Printers actually expect a certain way of getting data. That is the Centronix Parallel Port Protocol.

Basically you set a byte you want to send to the printer on the first byte of the parallel device. You then raise and lower a pin on the control byte (3rd I think ???) which tells the printer to retrieve the data you put on the first byte.

COPYRIGHT ^

Copyright (c) 2002,2004 Scott Penrose. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

AUTHOR ^

Scott Penrose scottp@dd.com.au, http://linux.dd.com.au/

SEE ALSO ^

Device::ParallelPort

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