Using the LPD compatibility filter

The LPD compatibility filter, lpd_compat.so, supports some LPD command codes and parameters that the Print Interface LPD does not otherwise support. LPD command codes and parameters are specified in the LPD control file that is sent by the LPR client with each document to be printed.

The LPD compatibility filter provides support that is similar to the support that the z/OS Communications Server LPD provides. For example, with the LPD compatibility filter, the Print Interface LPD supports the p command code, which lets you print a header with a page number on each page. The LPD compatibility filter also lets job submitters and the administrator specify the -f, -l, and -w filter options, which correspond to the FILTER, LINECOUNT, and WIDTH parameters of the TCP/IP LPR command.

The LPD compatibility filter can be used for printing to PSF-controlled printers and to other printers that print line data.