Xerox Mobile Express Driver Support & Software Merkblatt

Understanding the Printer
Default Option

When a document is sent to the printer, it travels through a number of different
phases. Instructions for how the document should be processed and how it should
look when it is printed can also be introduced and modified during different phases
in the process.

Print instructions can be contained in the following elements:

• a Job Ticket (XPIF - Xerox Printing Instruction Format): A file containing print

job instructions for Xerox-specific printer features, such as stapling or two-sided
printing. The printer "reads" this file to properly process the print job. Job Ticket
instructions are processed before PDL file instructions.

• a Page Description Language/Printer Definition Language (PDL) file: A file

containing device-independent print job instructions that may be used to process
a print job.

• the Print Protocol: A means of sending information across a network from a

user's workstation to a print server. Most print protocols allow print instructions
to be conveyed as part of the protocol, which are in addition to print instructions
conveyed in the job ticket and in the PDL data.

• the Print Queue: The target to which print jobs are submitted before being

processed at the printer. Job processing instructions can also be applied to the
print queue. These instructions may or may not override individual settings you
set for your job.

Some of these items take precedence over others and may override printing options
you set in the application or the printer driver.

Job programming conflicts created by specifying different programming instructions
for the same feature at different processing levels will be resolved according to the
following hierarchy (listed from highest to lowest priority):

1. Queue Overrides: Queue overrides have the highest priority because they represent

the requirements set by a print shop manager or System Administrator. The
override settings will be produced regardless of conflicting print instructions
specified in any other source.

2. Job Submission Protocol: Print instructions in the job submission protocol (such

as command-line options available via lp or lpr) have the next priority because
they represent user options selected at the time a job is submitted for printing.
Any page-level overrides specified in a job take precedence over general job-level
settings.