NAME

Business::TW::Invoice::U420 - Print Taiwan Unified Invoice with U420 printer

VERSION

Version 0.01

SYNOPSIS

Business::TW::Invoice::U420->init_printer; my $u420 = Business::TW::U420->new ({ heading => [ DateTime->now->ymd, '', 'order: #232', ''], lines_total => 35, lines_available => 18, lines_stamp => 5, fh => \*STDOUT });

$u420->println("123123") for 1..30; $u420->cut;

# to actually print to the printer, run: # perl your-program.pl > COM1

DESCRIPTION

This module generates commands for the "Epson RP-U420 invoice" printer for printing the Unified Invoice in Taiwan.

You must install the driver and printer processor properly before you can use the module.

You can define multiple lines of headers that will appear on each page of the printed invoices, and when you do println the module does all the necessary paging and stamping for you.

METHODS

new

init_printer

feed( $lines )

Feed $lines lines, default is 1.

stamp

Make the printer stamp on the invoice. note that you generally don't want to call this method directly, due to the stamp positioning. When you call "cut", the module automatically detects the correct place to stamp for the next invoice.

cut

feed the current invoice and cut, as well as stamping on the next invoice.

print

Low level print function.

println

Print a line on the invoice. Does all the paging logic here.

AUTHOR

Chia-liang Kao, "<clkao at clkao.org>"

TODO

Split the device control parts into "Device::Serial::U420" for generic use and keep the paging/stamping logic here
Tests
Add footer support

BUGS

Please report any bugs or feature requests to "bug-business-tw-invoice-u420 at rt.cpan.org", or through the web interface at <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Business-TW-Invoice-U420>. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

    perldoc Business::TW::Invoice::U420

You can also look for information at:

AnnoCPAN: Annotated CPAN documentation
<http://annocpan.org/dist/Business-TW-Invoice-U420>
CPAN Ratings
<http://cpanratings.perl.org/d/Business-TW-Invoice-U420>
RT: CPAN's request tracker
<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Business-TW-Invoice-U420>
Search CPAN
<http://search.cpan.org/dist/Business-TW-Invoice-U420>

ACKNOWLEDGEMENTS

COPYRIGHT & LICENSE

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.