Installation guide

• Use the lpc command to check on the status of the printer. If queues

are stalled, try resetting the queues (refer to Section 10.6.5).

• Ensure that the appropriate spooling or device ﬁles have been created

and that ownership and access are correct (refer to Section 10.7.2).

10.8.2 Printer Error Logging

The lpd daemon logs printer errors to the error log ﬁle. Specifying an error

log ﬁle is optional. If you used lprsetup to install the printer, the program

provides the default value /usr/adm/lperr. If you do not specify an error

log ﬁle, errors are logged to /dev/console.

The error log ﬁle is speciﬁed with the lf symbol in the /etc/printcap

ﬁle. For example:

lf=/var/adm/lpderrs

Error log ﬁles are usually located in the /var/adm directory. An error log

ﬁle can be shared by all local printers, but you should specify the ﬁle in

each /etc/printcap ﬁle printer entry.

10.9 TCP/IP (telnet) Printing

TCP/IP printing, also called telnet printing, allows you to submit print

jobs to a remote printer that is directly connected to the network. Note that

to use this feature, your printer must contain a TCP/IP interface card and

must be registered with a TCP/IP node name and node address.

With TCP/IP printing, the local host manages print jobs in the same

manner as it would manage print jobs for a local printer. The only difference

is that with TCP/IP printing, the local print daemon (lpd) communicates

with the remote printer over TCP/IP (similar to LAT printing). Each

printer listens for connection requests on a socket number that is speciﬁed

in the printer hardware or that is user-deﬁned through the printer console.

Although multiple hosts can talk to a single printer connected to the

network in this way, the hosts are handled on a ﬁrst-come, ﬁrst-served

basis. Therefore, TCP/IP printing is not the same as remote printing, in

which the remote printer manages a print queue on the remote site and

listens for network connections on socket 515 (as speciﬁed in the entry for

printer in /etc/services).

10–32 Administering the Print Services