SUPPORT - MANUALS & DOWNLOADS
Control Strips

Minimal Control Strips

Assessing an offset press used to require a dedicate press run which is very expensive, and is often not indicative of actual day to day production. For these reasons, we have developed multiple procedures to assess an offset press during live production. We have designed small control strips that can be placed in-between regular jobs. Reduced amount of patches and small size gives an opportunity to locate it in the gaps. 

 

 

When working with a handheld instrument with scan option like X-Rite eXact Scan or Techkon SpectroDens or using other instruments with small aperture it is possible to reduce strip width to 3-4 mm  (1,5 / 2mm instrument aperture required). The relationship between aperture/ screen frequency/ control strip length for X-Rite eXact is described here. If you are using different instrument contact vendor for detailed information.

 

ChromaChecker™ offers two different control strips:

  1. Minimal G7®  — dedicated to G7 production in two version single-row and triple-row.
  2. Minimal CMYK 40-80 — for production calibrated with TVI (dot gain) method


We strongly recommend placing minimal control strips everywhere it is possible. It doesn't mean that all printed strips have to be measured — but doing so we will have a possibility to resolve a potential issue in the future. It is also useful for random variation evaluating from production. So we advise filling all gaps with minimal control strips so that it becomes a habit. Practically it doesn't cost but brings control points to your workflow.  It happens that ink-zone strip is printed correctly but job not - because inking uniformity is bad and top/bottom variations are so big! To check it scan few strips from a different location, make a group and analyze variations. `If solids are very different - fix ink distribution, if solids are stable but tints have big variation - you have probably a slurring/doubling issue. 

 

 

Minimal G7®

It contains 21 patches for G7 conformance plus very basic TVI and overprints analysis.


1,5 mm aperture —  minimal size is 3 x 63 mm/ 0,12" x 2,48" (175 lines/inch or above);
2,0 mm aperture — minimal size is 4 x 84 mm/ 0,16" x 3,3" (133 lines/inch or above)


for i1Pro 2 — minimal size is 7 x 147 mm / 0,28" x 5,8"

 

 


TIFF / PDF files downloads:

single low

3-rows

 

We advise using as big patch size as possible in particular sheet – may vary from job to job. Scale provided tiff file according to your needs.

 

 Software Templates

Alwan Print Verifier Template  / Minimal G7®.jobTemplate 

basICColor Catch 5 Templates

i1 Profiler / Measure Reference Chart


Minimal CMYK 40-80

It contains 19 patches for basic TVI, gray-balance and overprints analysis.


1,5 mm aperture —  minimal size i minimal size is 3 x 57mm (175 lines/inch or above);
2,0 mm aperture — minimal size is 4 x 76 mm (133 lines/inch or above)


for i1Pro 2 — minimal size is 7 x 133 mm

We advise using as big patch size as possible in particular sheet – my vary from job to job. Scale provided tiff file according to your needs.

TIFF files downloads:

 

 

Software Templates

Alwan Print Verifier Templates / Minimal CMYK 40-80.jobTemplate

basICColor Catch 5 Templates

i1 Profiler / Measure Reference Chart

 

 

Notes

We provide control strips and templates for instruments driving software for few instruments but the user can modify strips according to particular requirements. The strips definitions are available in Contro Strip Tool. The user has to import selected control strip from the public library first.

Control Strip Tool will enable to define custom control strip - The user can import one of our Minimal Control Strips and add spot color patches if necessary.

If you want to perform G7® calibration we recommend placing at least one PI-64 on the printing sheet - ChromaChecker Curve Inspector requires more gray-finder patches to generate proper G7 curves.

 

For X-Rite eXact users we advise enlarging the first patch - as scanning process starts on this patch it is easier when the length is about 20-30% higher.  

Some instruments  (like i1Pro) require to start on white before the first patch and stops on white after last on - make sure that proper unprinted area will make this happen.


Whenever you are measuring take care of backing – if possible prefer white backing (single-side printing).