"HDM:PaperStretchCompensation" Option
This section is relevant only if "Automatic Paper Stretch Compensation" (APSC) is used. This is where you define how the TIFF files will be submitted from the Prinect Cockpit to APSC. You will find more details about this in the Online Help of APSC.
"Use Paper Group as Job Group" option and "Job Group" list box
APSC works with job groups to assign characteristic curves. These groups are set up in APSC. For an automated workflow, the job groups can be set up so that their names match the printing material groups in the Prinect Cockpit.
•Enable option: Enable the option if the job groups in APSC match the printing material groups in the Prinect Cockpit.
•Disable option: Disable the option if the job groups in APSC do not match the printing material groups in the Prinect Cockpit. Apart from that, select the correct job group in the "Job Group" list box.
"Device ID" list box
This lists all the machines that were set up in APSC. Select the machine on which paper compensation will run.
"First Printing Unit (Front)" and "First Printing Unit (Back)" list boxes
This is where you select which printing units will be used for front and back. The first printing unit may run empty. In this case, select "2" in "First Printing Unit (Front)".
"Write paper stretch compensation directly to TiffB files (for third-party workflow)" option
APSC can send this task to the imagesetter for faster calculation (stretching) of the TIFF files (only possible with Heidelberg imagesetters).
•Enable option: Enable the option if you do not use a Heidelberg imagesetter.
•Disable option: Disable the option if you use a Heidelberg imagesetter and this will calculate the TIFF files.
"Paper Properties"
APSC needs information about the paper (grammage, grain direction, etc.) for assignment of the characteristic curves. This information can come either from the printing material table or from the ImpositionOutput sequence. We recommend that you use the data from the printing material table. This approach is more reliable and there is less to set up in the sequences. This requires that the printing material table is kept up-to-date.
•"Use Master Data, else Error" option
All the paper data are taken solely from the printing material table. The sequence aborts if an item of information is not found.
•"Use default values, if necessary" option
All the paper data are first taken from the printing material table. The values from the sequence settings are used if an item of information is not found. See "Paper" group.
•"Always Use Default Values" option
All the paper data are taken from the sequence settings. See "Paper" group.
This is where you must define the paper properties if you enabled "Use default values, if necessary".
The paper properties set in this group are ignored if you enabled "Use Master Data, else Error".