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iGen5 Extended Gamut Job Identification and Batching Workflows

 

Jobs may benefit from use of Xerox iGen5 Press Gamut Extension colorants in two cases:

  • If the jobs include Pantone Plus spot colors that are outside of the iGen5 CMYK gamut
  • If the jobs include RGB images whose gamut extends beyond the iGen5 CMYK gamut

The Xerox iGen5 Press Gamut Extension Tool allows users to determine the predicted accuracy of Pantone Plus color matching for CMYK and CMYK+ printing on the iGen5. While useful, this tool requires an operator to lookup Pantone Plus colors one at a time. Additionally, this tool does not help to identify jobs with RGB images that may benefit from CMYK+ printing.

 

With the proper configuration, FreeFlow Core workflows can automate the identification of jobs that may benefit from CMYK+ printing. This includes identifying both Pantone spot colors as well as RGB images that may benefit from CMYK+ printing. In both cases, the workflows can automatically evaluate jobs against each of the iGen5 Gamut Extension colorants. 

 

Once FreeFlow Core identifies a job as benefiting from CMYK+ printing, it can batch that job with other jobs that will benefit from printing with the same Gamut Extension Colorant.

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Re: iGen5 Extended Gamut Job Identification and Batching Workflows

Identifying jobs with Pantone spot colors that benefit from iGen5 Gamut Extension colorants

 

The Xerox iGen5 Press Gamut Extension Tool defines 5 levels of accuracy when matching Pantone spot colors. The preflight profiles in this workflow will check for Pantone spot colors that

  • require CMYK+ printing to achieve an Accurate or Very Accurate match
  • achieve an Accurate match with CMYK printing but require CMYK+ printing to achieve a Very Accurate match

If a job has Pantone spot colors that meet either criteria the preflight will flag a "warning" for the job. The preflight status is then used to sort the jobs. If the job does not set a "warning" status on the first preflight, the job is checked against the second and third colorants.

 

The workflow will check the jobs againt the Green, Orange and Blue colorants in that order. This sequence is based on the number of additional spot colors that can be Accurately or Very Accurately matched with each Gamut Extension colorant.

 

Creating the Preflight profiles

The first step in building the workflow is creating preflight profiles to evaluate the Pantone spot colors in the job. This is done by checking the name of the spot colors against the list of spot color that will meet the above-defined criteria for a given Gamut Extension colorant

Screen Shot 2015-10-06 at 4.57.17 PM.png

 

Note: The preflight check looks for Pantone colors with the following convention PANTONE xxx C. To check other suffixes, copy the list from the preflight profile and replace the suffix. The new colors can be added to the end of the list.

 

The Preflight checks are set to generate a warning within the preflight profile

Screen Shot 2015-10-06 at 5.05.12 PM.png

 

A preflight profile is created for each colorant.

Screen Shot 2015-10-06 at 5.06.09 PM.png

 

Building the FreeFlow Core workflow

The workflow automatically sorts jobs by repeating the same Preflight, Route, Collect and Print operations 4 times.

The preflight component uses the preflight profile to evaluate the job.

Screen Shot 2015-10-06 at 5.19.12 PM.png

 

After preflight, the Route component evaluates the Preflight Result variable to select an execution path in the workflow. If the preflight resulted in a warning (aka the job contains a Pantone spot color that requires CMYK+G printing) the job is routed to a Collect component for aggregation. Otherwise, the job is routed to preflight for the next Gamut Extension colorant

Screen Shot 2015-10-06 at 5.21.46 PM.png

 

The Route component has the following rules

Screen Shot 2015-10-06 at 5.22.39 PM.png

which rely on the following job characteristics

Screen Shot 2015-10-06 at 5.22.14 PM.png

 

The Collect component will agregate jobs in a batch until the number of jobs has at least 3,000 impressions or until 3 hours have passed.

Screen Shot 2015-10-06 at 5.24.26 PM.png

If Collect releases the jobs based on the impressions it will ensure that the number of impressions in the released jobs is less than 3,000. This guarantees that all jobs can fit into an empty stacker cart.

 

The rest of the workflow repeats the step above for CMYK+O and CMyK+B printing.

Screen Shot 2015-10-14 at 3.21.23 PM.png

 

In the end the above workflow will automatically sort and agregate jobs based on whether they contain spot colors that would benefit from printing with Gamut Extension colorants.

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Re: iGen5 Extended Gamut Job Identification and Batching Workflows

As some customers will doubtlessly have different preferences for handling Pantone Spot Colors that can be Accurately matched with CMYK printing, I am attaching preflight profiles to this reply that will check for the following

  • Spot colors that can be Accurately or Very Accurately matched with CMYK printing
  • Spot colors that can only be Accurately or Very Accurately matched with CMYK+ printing
  • Spot colors that can be Accurately matched with CMYK printing but which can be Very Accurately matched with CMYK+ printing

Note - Unlike the profiles in the exported workflow, this profiles were created with pdfToolbox v7

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