LP(4)               UNIX Programmer's Manual                LP(4)

NAME
     lp - line printer

DESCRIPTION
     _L_p provides the interface to any of the standard DEC line
     printers.  When it is opened or closed, a suitable number of
     page ejects is generated.  Bytes written are printed.

     The unit number of the printer is specified by the minor
     device after removing the low 3 bits, which act as per-
     device parameters.  Currently only the lowest of the low
     three bits is interpreted: if it is set, the device is
     treated as having a 64-character set, rather than a full
     96-character set.  In the resulting half-ASCII mode, lower
     case letters are turned into upper case and certain charac-
     ters are escaped according to the following table:

     {         -(
     }         -)
     `         -'
     |         -!
     ~         -^

     The driver correctly interprets carriage returns, back-
     spaces, tabs, and form feeds.  Lines longer than 132 charac-
     ters are truncated (This is a parameter in the driver).

FILES
     /dev/lp

SEE ALSO
     lpr(1)

DIAGNOSTICS
     None.

BUGS
     Although the driver supports multiple printers this has
     never been tried.

Printed 7/31/83                                                 1