converts a user file into a data stream that prints
properly on a given printer.
handles the various modes of printing that users request with
the -y option of the
lp(1)
command, such as two-sided printing, landscape printing, draft or letter
quality printing, and so on.
detects printer faults and informs the print service,
which in turn alerts you.
A default filter is provided
to give
simple printer fault detection;
it does not convert files
or handle any of the special modes.
It may, however, be adequate for your needs.
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Providing filters
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Examining a form