Xerox 4112-4127 Enterprise Printing System-192 User Manual
Page 327
Specifying print format parameters
Using LCDS Print Description Language
4-87
– For any paper size wider than 15.32 inches / 389 mm, the
system automatically switches to 3 pitch mode, in which it
prints up to 77 pages per minute.
– For very large papers, such as 11 by 17 inches or A3,
paper is fed short edge first, so the 11-inch edge leads
through the printer.
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Using pitch mode and the TMODE parameter effectively:
Specifying the pitch mode (also called the “throughput
mode”) with the OUTPUT TMODE parameter allows you to
control the default pitch mode, which provides the following
benefits:
– Matching system throughput with finishing device
restrictions: If the finishing device attached to the printer
cannot accept output at rated speed, the printer inserts
gaps in the paper path to ensure that pages do not arrive
at the device too rapidly.
For example, if printing is done at 180 ppm, printing
effectively slows to 68 ppm. This happens even if the
finishing device actually could have accepted pages at up
to 120 ppm. However, if you change the mode of this job
from 7 pitch to 6 pitch mode, the job runs about 116 ppm.
– Eliminating process adjustment cycles during jobs
that cross pitch boundaries: Each time a job crosses a
pitch boundary, the system performs a print quality
adjustment. If this is done frequently within a job, the
adjustments may take a substantial amount of the overall
print time. Lowering the pitch mode so that the entire job
runs in the same mode may enable you to significantly
increase performance.
– Estimating the time needed to run your print jobs for
scheduling purposes: To better understand the potential
value of specifying pitch modes in your JSLs, consider
these hypothetical situations:
Problem: Your finishing device folds and binds
your printed output but accepts pages at a slower
rate than the FreeFlow Print Server LCDS systems
produce pages.
Solution: You may want to slow down the rate at
which the printer sends sheets to the device. Specify a
different pitch mode.