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The HP Distributed Print Service (HPDPS) provides a standards-based print
spooling service for the networked enterprise. The HPDPS is based on
standards ISO DPA 10175 and POSIX 1387.4, which are in turn based on
Palladium Version 2 technology from MIT's Project Athena. The HPDPS provides:
Support for the large enterprise. The HPDPS can handle networks
with thousands of printers, spoolers, and clients, yet avoids
impairing performance in large configurations of old
spooler systems. Access from the HP VUE and CDE window managers. Printer icons
appear on the desktop for HPDPS printers created on your host or
within your DCE cell. All window manager print system
operations can be performed on the HPDPS. Optional use of HP Distributed Computing Environment (DCE) cell
services. When executed in a DCE cell, the HPDPS provides these
features in conjunction with DCE:
Single-point administration of the HPDPS from any host in
your cell. For example, a new printer is created once and
the entire cell can instantly access the new printer. Security authentication and authorization for all access to
the HPDPS using DCE Access Control Lists to control
access. For example, certain users can be restricted from
printing to a certain printer or from printing jobs larger
than a certain size.
Automatic selection of printers appropriate for a print job. For
example, the HPDPS can automatically select a printer capable of
double-sided printing for a job that requires it.
Conversely, with the HPDPS, you can disallow submission of jobs
based on DCE authorization, job size, paper selection, and
other attributes. Ability to configure pools of printers to distribute the
workload among several printers. Queued jobs are routed to the next
available printer from the pool, rather than queuing up several jobs
for the same printer. Thus, the print load is balanced. Monitoring of printer status during the printing of a job using
SNMP (for printers with SNMP support). The HPDPS detects
conditions such as low toner or paper jam. User and operator notification of events such as print system
problems and changes in job status. For example, the HPDPS
can be configured to send email to the operator when a printer runs out
of paper or when the number of print jobs in a queue becomes too
large. Convenient administration of the HPDPS using SAM. With SAM,
you can create, modify, delete, and view the status of
HPDPS objects. Interoperability with existing lp- and lpr-based spoolers on
supported platforms, including HP-UX hosts running the LP spooler.
A print job submitted using the LP spooler on one host can be
transferred to another host for processing by the HPDPS, and
vice-versa. Access to the HPDPS from the LP spooler commands. Using the
familiar LP spooler commands, such as lp, lpstat, and
cancel,
print jobs can be submitted, listed, and canceled within
the HPDPS. Existing software that executes the LP spooler
commands for these operations can now access the HPDPS as well. Support for a variety of printer and plotter devices. HPDPS
supports an extensive list of HP printers and plotters, including
the LaserJet 5, Color LaserJet 5, DeskJet 1600CM, DeskJet 1200C/PS,
and DesignJet 650C. Support for a new printer or plotter model
can be added to a running HPDPS server without shutting down
the server.
Impact | |
Both the LP spooler and the HPDPS can be installed, configured, and
executed on the same host. If you choose not to use the HPDPS,
you will see no effect on performance or memory usage. Size Requirement | |
See the HP Distributed Print Services Administration Guide for
information on memory and disk requirements. Additional Information | |
For details on the HPDPS, see the HP Distributed Print Service
Administration Guide, the HP Distributed Print Service User's
Guide, and the pdpr(1) and pd_att(5) manpages. |
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