Nexus 10.1 Reference Manual
The State indicates if a Monitor is active or on hold. Changing the
state can be done by selecting one or more Monitors, and clicking
the Run or Hold button. If a Printer is set on hold, the printer will
cease to be visible on the network until the Release button is
pressed to reactivate it. In the case of Hot Folders and Stitch
Sheets, files added to their designated input folders will not be pro-
cessed further while they are in a held state. If a stitch sheet has
been partially made, it will be flushed promptly when putting the
stitcher on hold.
The NeXML column indicates the name of the NeXML file attached
to the Hot Folder. The NeXML editor can be opened from the con-
textual menu on the NeXML file, or from the Workflow Editor.
The Shuttle option indicates which Hot Folders will be available in
Shuttle. It can be switched on or off in the Monitors list, or in the Hot
Folder settings (see 2.12.8 Hot Folder on page 72). For more infor-
mation on Shuttle, see Appendix 3 : Shuttle on page 450.
2.12.7 Contextual Menu
The Contextual menu in the Monitor Tab contains the option to
open the Edit window, to Dump or Hold the selected Monitor.
When a Hot Folder is selected, the option to Reveal will also be
available, to show the Hot Folder in the finder. The server needs
to be mounted for this option.
• Create PDF Workflow Option
PDF Workflow Option is a service available in OS X, and affects
the print dialog of every application.
When the PDF Workflow Services are used, the “Save as PDF”
button, usually at the bottom of the Print dialog, is replaced by a
PDF button.When clicking this button, a menu is shown, contain-
ing the original “Save as PDF” option, as well as every Hot Folder
that has the PDF Workflow Option. This allows to save the PDF
directly in the Hot Folder, without having to search for it in the
The Create PDF Workflow Option adds this option to the selected
Hot Folder, making it available in the PDF menu in the Print dia-
log. It’s only available if the server is mounted.
• Create Alias on Desktop
Create Alias on Desktop can be used on Hot Folder Monitors,
and allow to create an Alias of the Hot Folder. This option can
only be used if the server is mounted.
2.12.8 Hot Folder
When adding or editing a Hot Folder, the Hot Folder settings can be
• Hot Folder
The default name has the extension _HF appended to the Work-
flow name, but the Browse button can be used to locate an alter-
native location. In the case of hot folders, it is quite reasonable for
these to be located on a remotely mounted drive, possibly on an
OPI server. It is also common to have the hot folders on a Mac
accessible volume, which enables operators to copy their files
from their workstation.
Through this popup the workflow must be selected for which a
new Hot folder must be created. This popup shows all current
workflows. It is acceptable for a given workflow to have both
Printer and Hot Folder input. However it is important to note that
the Printer Spool folder should not also be defined for hot folder
input, otherwise the job may be submitted twice to the workflow
and there would be problems retrying the printer job. Hot folder
jobs, once detected by the Print Driver, are copied into a sub
folder of the hot folder called Spool, so that they do not get rede-
tected. It is from this sub folder that a hot folder job would be re-
tried if necessary.
• Poll Period / Settling Period
The Poll Period is the time interval that Nexus uses to check the
Hot folder. Default value is 10 seconds, meaning that every 10
seconds the Hot Folder will be checked for new files.
The settling period is the time that Nexus waits after the file is
completely copied in the Hot Folder before start processing it.
This to avoid that Nexus already starts and the file is still being
copied over the network.
• Never Delete Hot Folder
If this option is on, the folder itself will not be deleted, even if the
Workflow it belongs to is deleted, or if the Hot Folder is removed
from the Monitors tab.
• Hide Hot Folder Name in List
If this option is on, the Hot Folder is represented by the name of
the Workflow instead of the name of the Hot Folder.
Nexus 10.1 Reference Manual
• Show in Shuttle
The Show in Shuttle option indicates which Hot Folders will be
available in Shuttle. It can be switched on or off in the Monitors
list (see 2.12.6 Shuttle on page 71), or in the Hot Folder settings.
For more information on Shuttle, see Appendix 3 : Shuttle on
Some OPI-replacement applications like ColorCentral create a
temporary folder to spool their files. In the OPI workflows, a Hot
folder from Nexus has been selected as the output folder. Nexus
could see the incoming folder and attempt to process it resulting
in an error. Once the OPI replacement has been completed, the
temporary folder is removed and the fat PS file is direct available
in the hot folder to process.
To avoid such problems, all subfolders called Temp, Tmp &
Spooler are excluded from processing automatically. Also Nex-
ml.xml files, that can be in the hot folder when using NeXML (see
later) will be ignored. Other folders or file names that should be
ignored can be added by entering the name in the field, and click-
ing the + button. A file or folder name can be removed from the
ignore list by selecting it and clicking the - button.
In the Groups tab you can set the Group settings for the Hot Fold-
er. See • Workflow Groups on page 47.
• Nexml Settings
The Nexml Settings will be used if files are run through a hot folder
with a Nexml file. See the Nexml documentation for more info.
• Drag and Drop
You can drag and drop a file on a Hot Folder to run the file
through the workflow corresponding with the hot folder. If a NeX-
ML is attached to the hot folder, this NeXML will be used to set
up extra parameters for the job. See the Nexml documentation
for more info.
When adding or editing a Printer, the Printer settings window
opens. It may be necessary to define a printer manually after restor-
ing a workflow, or if a Hot folder has been defined when setting up
the workflow originally, and an Appletalk Printer based input possi-
bility must be added.
• Input Folder
When PostScript is received over the network, it is stored on the
server as a file instead of being processed immediately by the in-
terpreter. This allows to retry jobs without having to be resent
over the network. But the file needs to be stored, and this spool
folder would typically have the name of the workflow (possibly
with the _Printer extension) and be in the PS_FILES subfolder of
the RIP_DATA folder in the RIP folder. When setting up a new
printer this default path will be proposed in the edit field. The
Spool path will be shown in the Monitors window. Of course it
can be defined elsewhere if more convenient and can be located
through the Browse button. It might be appropriate, e.g., to store
incoming PostScript on a physically different disk drive to the oth-
er files created by the RIP. It would normally be a local drive how-
Through this popup the workflow can be selected for which a
new printer is created. It shows all current workflows.
• Printer / Append IP address
The name by which the printer will appear on the network, can be
set here. If the Append IP address option is on, the last 3 digits
of the server’s IP address will be appended to the name of the
printer. This can make it easier to distinguish and recognize print-
ers over the network.
• The Stitcher principle
Stitching is a facility on Nexus RIP to conserve film or plate mate-
rial on large output devices. Under some conditions it may be
useful to combine all separations from one job on one sheet, or it
may be useful to combine multiple jobs on one sheet.
Most large imagesetters on the market have their own built-in film
optimization, however sometimes this option is only accessible
through the original RIP from the same vendor, or it is limited in
functionality. In a Nexus environment, where the physical con-
nection is done often through a Spooler such as the Rasterblast-
er from Xitron, the Stitcher offers an excellent alternative for film
optimization and also makes the optimization independent from
the output device.
Basically, the Stitcher is a separate program or module, that is
joining TIFF images prior to output on the target device, together
to form a single TIFF file. Screened data that would normally be
sent direct to the output device, is in this case sent to a Stitcher
which will fill up a Stitch Sheet as good as possible before releas-
Nexus 10.1 Reference Manual
A new stitch sheet is created by pressing the Add Stitcher button
under Monitors to open the Add Stitcher Window. This window
enables the type of stitch sheet to be defined. Once a stitch sheet
has been created, it can be monitored.
• Stitch Type
There are two basic types of stitch sheets, Mono is designed to
stitch together screened TIFF files for output to film or plate. The
input type is always 1bit TIFF data
Color Type is designed to stitch together CMYK images for out-
put to color proof devices. In Color mode the output of the stitch-
er is always a PostScript file (the Output mode popup is disabled),
which must be scheduled on a workflow than can accept Post-
Script input. Unlike mono stitching, where the input files are TIFF
images, the input files for the color stitcher are link files made by
a page workflow.
It is important to note that when a link file is made for use by the
stitcher, it is renamed. If a link file is needed for some other pur-
pose, such as making an imposition, the link file must be copied
to two destinations.
• General settings
The hot folder provides the mechanism by which files are queued
for the stitch sheet. In the case of Monochrome stitching, all files
on the same stitch sheet, will have the same resolution, as Imag-
esetters and Platesetters cannot change resolution while expos-
ing a sheet. The Stitch sheet will have the resolution of the first file
entered. Files with another resolution will be held back until the
current sheet is flushed, and then be placed on a new stitch sheet
(unless the Move Mismatching option is on, see below). Parame-
ters other than resolution, such as unit system, compression etc.,
are also inherited from the first image to be placed on the sheet.
The folder would typically be the destination folder defined in one
or more workflows in the File Copy editor. These workflows copy
their output screened TIFFs in a Stitch hot folder instead of trans-
ferring them directly to the target device. The full path must be
specified, but can be located using the Browse button. The hot
folder will contain a subfolder called Done into which files are
moved after processing.
The files may also be renamed with a sequence number. This en-
ables the same job to be stitched several times on the same
sheet by simply recopying it to the hot folder. The files for stitch-
ing are deleted when processing of the stitched job on the target
workflow is complete and the stitched job gets purged.
The name of the hot folder will also be the name by which the
stitcher is shown in the Monitor tab.
• Settling Time
The settling time is the time that Nexus waits after the file is com-
pletely copied in the hot folder before start processing it. This to
avoid that Nexus already starts while the file is still being copied
over the network.
• Filenames Matching
This option allows to ensure that only files from the same job are
stitched on a given sheet. When selecting Any File, all files will be
accepted. By selecting Based on Leading text or Based on Lead-
ing Digits, only files with the same text or digits will be placed on
the same sheet.
If the “Single Image Repeat” option is selected, whenever an in-
put file is selected (whether monochrome or color), it will be
placed multiple times on the sheet in accordance with the spec-
ified spacing and centering parameters. The number of images
will be that specified in the “Max Images” field or until the sheet is
filled if this occurs first. The Replace Duplicates and Flush When
No Match options are disabled and unavailable.
“To First/Last Occurrence of” allows to match file names based
on parts, separated by a special characters.
E.g. by setting it to “First Occurrence of” and “_”, filenames will
be considered matching if the part in front of the first underscore
in the filename, is identical
• Replace Duplicates
If a job is entered in the hot folder with the same name as a job
previously entered, it will replace the older file if Replace Dupli-
cates is on. In the other case, the file will be added, adding “1” to
the name. This also defines if retrying a job results in having both
versions on the stitch sheet, or only the last.
• Flush If No Match
If the Flush If No Match is on, as soon as a TIFF is submitted that
does NOT fit, the Stitch Sheet will be flushed, and the TIFF will be
placed on a new Stitch Sheet.
• Move Oversized
The Move Oversized option allows to transfer TIFFs that do not fit
on the page size into another folder, and so e.g. into a Stitcher for
another (larger) device.
Nexus 10.1 Reference Manual
• Move Mismatching
TIFFs that do not match can be transferred into a specific other
folder, using the Move Mismatching option. This can be used to
transfer them to another Stitcher for example. This allows e.g. to
have 2 different Stitchers, building 2 different sheets at the same
time, one at 1200, one at 2400 dpi.
• Output Options
If TIFF is selected as the Output Mode, screened TIFF files may
be combined by the Stitcher itself to produce a large TIFF file that
must be submitted to a TIFF Expose workflow. In this mode, TIFF
images are aligned on 8 pixel boundaries for optimal perfor-
mance, irrespective of image size and defined margins.
Because the Stitcher is performing a complex function, there will
be a significant delay between when the sheet is flushed (whether
automatically or manually triggered) and when the stitched job is
scheduled for processing. TIFF Output Mode is only relevant for
Mono Stitcher. If the stitch type is set to Color, the Output Mode
will default to PostScript
In PS mode, the stitcher process completes much more quickly,
because it simply generates a PostScript file containing links to
the original TIFF images. The stitching is then done later by the
Assembler, after submitting the PS file to the target workflow
(which must be one capable of accepting PS input - i.e. not TIFF
input). Typically, stitching TIFFs in the Assembler is slower than
combining them in the Stitcher itself.
This popup shows all currently available workflows from which
one is selected in order to run the stitched file.
If the Stitch Type is Color, the output file will always be in Post-
Script, so the target workflow must be capable of processing
PostScript input (e.g. it must not be a TIFF Expose workflow).
When a Mono stitch sheet is created, the most efficient output
mode is TIFF, in which case the target workflow must be one that
can accept separated screened TIFF files as input (i.e. TIFFEx-
pose). There is currently no automatic validation of workflow input
capabilities against stitched file type. The workflow would typical-
ly not be configured as a printer or with hot folder input as well as
stitcher input (i.e. it would typical be set up just for Manual Select)
This parameter defines the direction of the fast scan on the final
output device with respect to the media width. The radio button
should be checked according to the type of output device.In a
drum setter, the fast scan direction is around the drum, which on
a roll fed device is along the length of the media. For capstan de-
vices, such as wide measure proofers, the fast scan is across the
width of the media.
Together with the Fill Page property, this parameter defines the
sequence in which images are placed on the stitch sheet and
when the sheet will be flushed for output. Drum setters are nor-
mally driven in Page Mode, with images initially being stitched
along the fast scan direction (i.e. around the drum).
• Fill Mode
This parameter effectively defines whether the stitcher is just be-
ing used to conserve media width or whether the complete page
size is to be filled before output.
In the first case, being Row mode, as soon as the full width of the
media is consumed the stitched job will run and the media will ad-
vance by the height of the tallest of the stitched jobs The second
option being Page mode will result in the page being filled com-
pletely. A page could be a complete drum in a drum setter, or a
paper sheet on a sheet fed proofer. Fill Page mode normally con-
sumes less media, but output will be delayed until sufficient im-
ages are delivered. It should be noted that if Fill Page has been
selected, flushing the stitch sheet will always output the full page
A stitch sheet is normally flushed when it is too full to accommo-
date any more images or when the manual Flush button is
pressed. But it is also possible to specify a time period for a par-
tially filled sheet after which, if no more images are supplied, the
sheet will be flushed automatically. Whenever a new file is re-
ceived, the timeout is reset to this value.
• Maximum images
Another mechanism for automatically flushing a stitch sheet is to
specify the maximum number of images to be put on the sheet.
As soon as this number is placed, the sheet will be flushed even
though there might be room on the sheet for more images. One
application for this, by setting this value to one, is to position im-
ages on a predefined larger format.
Nexus 10.1 Reference Manual
• width & height
These values define the size of the Stitch sheet. It is the size of
the media, including all margins
• margin (before / after) & space
Facilities are available to specify, for each direction on the stitch
sheet, what the maximum dimension is, how much space should
be left between images and what the margins before the first and
after the last image should be, all measurements being specified
in preference units.
The Waste value defines the point at which it is assumed that no
more images will fit and the sheet can therefore be flushing im-
mediately without waiting for another image. When not in Fill
Page mode, the sheet will be flushed as soon as this condition is
met. When in Fill Page mode, the condition must be met in both
directions. Typically, in order not to waste media or time, the val-
ues should be set to just under the smallest page size that is likely
to need to be stitched.
• images centered
If there is any space remaining in a given direction, it is also pos-
sible to centre the stitched image, the remaining space being
equally added to the before and after margins. It follows that the
images will not actually be centred unless the margins before and
after are equal. Centering may be enabled or disabled indepen-
dently in both directions. When not stitching a whole page, cen-
tering will only be effective in the direction in which images have
When switching on the Previews option, a preview will be added
for every job, allowing to get a proper preview of the stitch sheet
This is only applicable when stitching TIFFs in Mono Mode. If
checked, all gaps between images are inverted in the output file.
This is necessary when the individual TIFF images are already in
It would not normally be appropriate to mix positive and negative
TIFFs on the same stitch sheet, but no check is made on the po-
larity of the input data files.
• Media Save
If the Media Save option is on, images will be stitched underneath
each other in the slow scan direction instead of in the fast scan
direction, until no more images will fit. The right margin will be dy-
The Pad32 forces the stitched sheet dimensions so that they are
a multiple of 32 pixels at output resolution.
• Monitoring a Stitcher
To monitor a stitch sheet, control-click on the monitor and select
“Monitor” from the contextual menu.
The Stitch monitor window (like the volume monitor) can remain
open when other windows are opened. It shows the current sta-
tus of the stitch sheet.
At the top, the name of the workflow and the hot folder is shown.
The Seconds Remaining timer indicates how much time is left be-
fore the sheet will be automatically flushed, if the sheet is not
flushed for another reason.
The Flush button forces the stitcher to immediately output the
stitch sheet as it is at that moment. The Delete button removes
the sheet and all its files.
A white rectangular box is shown that represents the stitch sheet.
The horizontal direction corresponds to the width of the media
and the vertical direction to the media feed direction.
As soon as the stitcher receives a file to be stitched, a gray rect-
angle representing the shape of this image will appear in this
white area, showing the positioning on the sheet, based on mar-
gins, centering, etc., so a preview is shown on how the sheet
would be imaged when hitting the Flush button.
If the sheet has been configured in Row Mode, when there is in-
sufficient room on the row to accommodate the next image, or
when the remaining space falls below the maximum wastage val-
ue, the sheet will be flushed.
If the sheet has been configured in Fill Page mode, as soon as no
more images will fit across the stitch sheet, subsequent images
will start appearing on the next row and so on until the page is
filled with as many images as possible or until the maximum
specified number is reached.
If an image on the stitch sheet is selected with the cursor, it will
be highlighted and information relating to it is shown at the bot-
tom. This consists of the name of the original file, its dimensions
and its calculated position on the stitch sheet.
Documents you may be interested
Documents you may be interested