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AccXES PJL Interface
In page composition, a number of pages are normally composed onto a single physical sheet, hereafter
called a canvas. The pages to be composed will be called constituent pages. Conceptually, a constituent
page is fully mapped to a paper with all transforms applied (rotation, justification, scaling) just as if it
were going to be printed normally by itself. The resulting virtual page is mapped to the canvas using
specific page composition parameters which specify location and rotation.
Note that there is only one physical page output for a given page composition job. Also note that the
positioning and rotation parameters for page composition can be specified uniquely by PJL down to the
level of a file. Therefore, if a file contains multiple printed pages normally, each page in the file will
inherit the same page composition position and rotation parameters. This will most likely cause the
pages to be overlapping on the canvas.
The canvas’s paper size selected with PAGECOMPPAPER must be a valid sheet size. Currently,
autosize detection and roll sizes are not supported for a page composition canvas.
PAGECOMPMEDIATYPE and PAGECOMPMEDIASOURCE are provided as well to specify the
specific media type and media source of the canvas. When PAGECOMPENABLE is ON, the
MEDIATYPE and MEDIASOURCE parameters which may be associated with constituent files in the
page composition are ignored. If there is a media mismatch generated for the canvas due to the
availability of the media size or type, it will be forced to a blocking media mismatch since scaling
mismatches may require autoscaling which is not allowed.
An important restriction to note is that a constituent page must have a value for PAPER which
specifies a sheet size (ANSI_A, ARCH_E, etc…) and must not be set to autosize or a roll size. If a
non-standard sheet size is specified for a constituent page with the PAPER variable, then ANSI_A is
arbitrarily selected as the page’s logical size.
To specify the location and rotation of each constituent page on the canvas, PAGECOMPPOSX,
PAGECOMPPOSY, and PAGECOMPROTATE are used. The sequence of evaluation of the position and
transformation of a constituent page is detailed below:
First, the following parameters associated with each constituent file are applied as normal:
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JUSTIFYX
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JUSTIFYY
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PAGEROTATE
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PAGESCALING
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MIRROR
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PAPER
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MARGINTOP
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MARGINBOTTOM
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MARGINLEFT
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MARGINRIGHT
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LABELSTRING
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LABELFONT