HP Distributed Print Service Administration Guide

124 Chapter6
Configuring Spoolers, Queues, and Logical Printers
Creating and Configuring Logical Printers
During logical printer validation, the spooler verifies that the job and
document attribute values are supported by the logical printer. It
compares the job and document attribute values to the xxx- supported
attributes of the logical printer. For example, HPDPS compares the
print-quality documentattributetotheprint-qualities-supported
logical printer attribute. However, the xxx- supported attributes may
not be identical to the job or document attribute. For example, HPDPS
compares the default-medium document attribute to the
media-supported logical printer attribute.
HPDPS also compares the job attributes that request a certain type of
printer to the appropriate logical printer attribute. For example, the
printer-locations-requested job attribute is compared to the
printer-locations printer attribute.
The absence of a value for a logical printer attribute means no restriction
by the logical printer. If the logical printer attribute has a value or
values, the values of the corresponding job or document attribute, if they
have a value, must be supported. A discrete value, such as landscape for
the content-orientation attribute, must match. A numeric value, such
as total-job-octets, must be under a limit or within a range of values.
If the values are not supported, the validation fails.
See Table 6-1 which identifies some of the logical and physical printer
attributes that HPDPS uses for validation and the corresponding
document attributes.
Validation at the Physical Printer
The purpose of job validation at the physical printer is to identify a
physical printer that has the capabilities to print a job. Values are
assigned to physical printer attributes to represent the functions or
capabilities supported by the corresponding printer device. The value of
a job or document attribute that corresponds to a physical printer
attribute must be blank or have a specific value supported by the
corresponding printer attribute of the physical printer receiving the job.
The physical printer attribute can have one or more discrete values, or
can be a numeric value that is a limit or a range of values. If a value is
not supported by at least one physical printer, the validation fails.
HPDPS uses the following types of job validation at the physical printer:
• Job and document attributes used by the job are compared to those
supported by the spooler and physical printer.