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Introduction to Xprint V7.0 Xprint V7.0 elements
the printer by default and usually only define the hopper or the page format
(margins) or the font. If a specific form requires that special paper be
mounted in the printer manually or that a font cassette be changed, a
manual form makes sure that the job is only printed when the printer has
been prepared.
● PCLs (-pcl)
PCLs (printer capability lists) are used to define what printing options a
device provides. Furthermore, the PCL contains information on how the
options specified when the job is submitted can be converted to device
commands. Xprint V7.0 is supplied with a number of PCLs for the most
common printers, and with one generic PCL which in most cases also allows
printing on unknown devices. A list of all the PCLs supported by Xprint V7.0
is provided in the Reference Manual.
● Users (-usr)
Xprint V7.0 differentiates between two types of user: there are users, who
are not defined in the Xprint V7.0 system, and Xprint V7.0 users, who are
defined in the Xprint V7.0 system. users are all users of the system on
which Xprint V7.0 is running; the default settings for Xprint V7.0 apply to
them. If these settings are not sufficient, the users can be defined in the
Xprint V7.0 system.
The administrator can make more settings for Xprint V7.0 users than for
users:
– Xprint V7.0 users can access their print jobs from all the hosts for which
they are registered.
– They can be assigned a security level and thus be granted access to
devices with a corresponding security level.
– Print quotas can be defined for the number of jobs or print pages
allowed, thus preventing users from making unlimited numbers of
printouts.
● Filters (-flt)
Filters have the function of converting the data sent to the device by the user
into the format required by the device. This makes it possible, for example,
to print normal ASCII files on PostScript printers, as Xprint V7.0 is supplied
with the filter vppost. Two types of filter are distinguished under Xprint V7.0:
slow filters which are executed before the Xprint V7.0 process, and fast
filters which are used to provide a link to objects other than standard compo-
nents.