Technical data

• Remove job
• Resubmit job
• List job queue
• Modify job
• Promote job
Some operations are intended for use by end-users, while others are
intended solely for administrative purposes. Most operations apply to only
certain objects, while some apply to all. For example, administrators use the
create operation to create new printers, queues, and initial-value objects.
Users create jobs and documents by using the print operation. Similarly,
administrators set printer attributes, but users can modify jobs.
1.1.4 Logical Printers, Physical Printers, and Queues
Advanced Printing Software defines two kinds of printer objects; logical
printers and physical printers. Both terms refer to software representations
of printing devices.
A logical printer object includes characteristics and capabilities of one or
more physical printers. Users specify logical printers when they print jobs
and the logical printer sends the job to a physical printer that can satisfy
the job and document requirements.
A physical printer is a software representation of an actual output device.
The physical printer object contains information about the printer make and
model, connection details, and a list of ready-to-use features.
The logical printer and physical printer are joined by way of queues. By
associating a logical printer and a physical printer with a queue, you
establish a relationship between the logical printer that the user specifies
for printing and the physical printer defined by characteristics of the output
device.
The distinction between the logical printer and the physical printer allows
users to specify printers in terms of capabilities rather than by their
addresses or model numbers. In this way, printer hardware configurations
can evolve with little or no need for users to update their desktop printer
settings. Logical printers are used to provide end users with physical
printers that have certain site-specific, default attribute values. It also
allows setting up fan-in and fan-out queues, where several similar logical
printers can send jobs to one queue, or where one queue can issue jobs to
more than one output device.
1–4 Advanced Printing Software Overview